0
登录后你可以
  • 下载海量资料
  • 学习在线课程
  • 观看技术视频
  • 写文章/发帖/加入社区
创作中心
发布
  • 发文章

  • 发资料

  • 发帖

  • 提问

  • 发视频

创作活动
ADS7946EVM-PDK

ADS7946EVM-PDK

  • 厂商:

    BURR-BROWN(德州仪器)

  • 封装:

    -

  • 描述:

    KIT PERFORMANCE DEMO FOR ADS7946

  • 数据手册
  • 价格&库存
ADS7946EVM-PDK 数据手册
User's Guide SBAU194B – August 2011 – Revised September 2017 ADS794xEVM and ADS794xEVM-PDK ADS794xEVM-PDK This user's guide describes the characteristics, operation, and use of the ADS794xEVM by itself and as part of the ADS794xEVM-PDK kit. These evaluation modules (EVMs) allow evaluation of all aspects of either the ADS7946 or ADS7945 devices (ADS794x). Both devices are 14-bit, dual-channel, ultralowpower, differential successive-approximation-register (SAR) analog-to-digital converters (ADCs) with a maximum throughput rate of 2 MSPS. The ADS7945 offers fully-differential input voltages while the pseudo-differential inputs of the ADS7946 offer single-ended input voltages with small common-mode noise-cancelling capabilities. Complete circuit descriptions, schematic diagrams, and bill of materials are included in this document. The following related documents are available through the Texas Instruments web site at http://www.ti.com. Table 1. Related Documentation Device ADS7945 ADS7946 OPA350 Literature Number SBAS539 SBOS099C OPA836 SLOS712B REF5040 SBOS410E SN74LVC2G74 SCES203M ADCPro is a trademark of Texas Instruments. Windows XP is a registered trademark of Microsoft Corporation. SPI is a trademark of Motorola, Inc. All other trademarks are the property of their respective owners. SBAU194B – August 2011 – Revised September 2017 Submit Documentation Feedback ADS794xEVM and ADS794xEVM-PDK Copyright © 2011–2017, Texas Instruments Incorporated 1 www.ti.com 1 2 3 4 5 6 7 8 9 Contents EVM Overview ............................................................................................................... 3 Analog Interface.............................................................................................................. 4 Digital Interface .............................................................................................................. 7 Power Supplies .............................................................................................................. 8 EVM Operation ............................................................................................................... 9 ADS794xEVM-PDK: Software Installation .............................................................................. 10 ADS794xEVM-PDK Kit Operation ....................................................................................... 17 Bill of Materials, Board Layout, and Schematic ........................................................................ 20 Schematic ................................................................................................................... 24 List of Figures 1 ADS794xEVM and ADS7945 Analog Inputs ............................................................................. 5 2 ADS794xEVM and ADS7946 Analog Inputs ............................................................................. 6 3 ADS794xEVM Default Jumper Locations ............................................................................... 10 4 ADS794xEVM-PDK Plug-In Installer 5 6 7 8 9 10 11 12 13 14 15 16 17 18 .................................................................................... Completed ADS794xEVM-PDK Installer ................................................................................ MMB0 Jumper Locations .................................................................................................. Connecting ADS794xEVM to MMB0 .................................................................................... Powering Up ADS794xEVM-PDK ........................................................................................ NI-VISA Driver Installation Prompt ....................................................................................... Loading ADS794xEVM Plug-in From ADCPro ......................................................................... USBStyx Driver Installation Prompt ...................................................................................... ADS794xEVM Plug-in: Device Configuration Tab ..................................................................... ADCPro Test Plug-ins ..................................................................................................... ADS794xEVM PCB: Top Layer .......................................................................................... ADS794xEVM PCB: Ground Layer ...................................................................................... ADS794xEVM PCB: Power Layer ....................................................................................... ADS794xEVM PCB: Bottom Layer ...................................................................................... EVM Schematic............................................................................................................. 11 11 12 13 14 15 15 16 18 19 22 22 23 23 24 List of Tables 2 1 Related Documentation ..................................................................................................... 1 2 P2: Analog Interface Pinout (Samtec 10 x 2) ............................................................................ 4 3 SMA Analog Inputs .......................................................................................................... 4 4 P1: Serial Interface Header 5 P3 Configuration: Power-Supply Interface Header ...................................................................... 8 6 ADS794xEVM Bill of Materials ADS794xEVM and ADS794xEVM-PDK ................................................................................................ .......................................................................................... 7 20 SBAU194B – August 2011 – Revised September 2017 Submit Documentation Feedback Copyright © 2011–2017, Texas Instruments Incorporated EVM Overview www.ti.com 1 EVM Overview 1.1 Features ADS794xEVM Features: • Contains all support circuitry needed for the ADS7946/ADS7945 (ADS794x) • 5-V, 3.3-V, and 1.8-V logic compatible with 16-bit, 40-MHz SPI™ serial interface • Simple channel selection with a single 16-bit word command • Serial interface header for easy connection to TI DSP-based communication systems • Compatible with the TI Modular EVM System • Voltage reference options: onboard REF5040 (4.096-V) reference or external reference • Voltage reference buffering with OPA350 • Onboard OPA836 (200-MHz BW, 1-mA quiescent current) ADC input drivers • Jumper-selectable bipolar (–VREF/2 to +VREF/2) or unipolar (0 V to VREF) input range ADS794xEVM-PDK Features: • Easy-to-use evaluation software for Microsoft Windows XP® operating system PCs • Data collection to text files • Built-in analysis tools including scope, FFT, and histogram displays • Complete control of board settings • Easily expandable with new analysis plug-in tools from Texas Instruments The ADS794xEVM-PDK is available for use with a computer. This kit combines the ADS794xEVM board with the DSP-based MMB0 motherboard, and includes ADCPro™ software for evaluation. The MMB0 motherboard allows the ADS794xEVM to be connected to the computer via an available USB port. This manual shows how to use the MMB0 as part of the ADS794xEVM-PDK, but does not provide technical details about the MMB0 itself. ADCPro is a program for collecting, recording, and analyzing data from ADC evaluation boards. It is based on a number of plug-in programs, so it can be expanded easily with new test and data collection plug-ins. The ADS794xEVM-PDK is controlled by a plug-in running in ADCPro. For more information about ADCPro, see the ADCPro™ Analog-to-Digital Converter Evaluation Software User's Guide (literature number SBAU128), available for download from the TI web site. This manual covers the operation of both the ADS794xEVM and the ADS794xEVM-PDK. Throughout this document, the abbreviation EVM and the term evaluation module are synonymous with the ADS794xEVM. Operation of the EVM and kit for both the ADS7946 and the ADS7945 devices is identical, unless otherwise noted. 1.2 Introduction The ADS794xEVM is an evaluation module built to the TI Modular EVM System specifications. It can be connected to any modular EVM system interface card. The ADS794xEVM is available as a stand-alone printed circuit board (PCB) or as part of the ADS794xEVM-PDK, which includes an MMB0 motherboard and software. As a stand-alone PCB, the ADS794xEVM is useful for prototyping designs and firmware because it offers circuitry that meets the product data sheet specifications of either the ADS7946 or ADS7945 devices. The ADS7945 and ADS7946 are 14-bit, 2-MSPS ADCs with fully differential and pseudo-differential unipolar inputs, respectively. These devices operate at a 2-MSPS sample rate with a 16-clock SPI data frame that features both outstanding dc and excellent dynamic performance. These devices also include a two-channel input multiplexer and a low-power SAR ADC with an inherent sample-and-hold (S/H) input stage. During normal operation at 2 MSPS, the ADS794x dissipates a mere 11.6 mW. Note that the ADS794xEVM has no microprocessor and cannot run software. Therefore, some type of interface is required to connect the ADS794xEVM to a computer. In the ADS794xEVM-PDK kit, the MMB0 motherboard serves as the interface between the computer and the ADS794xEVM board. SBAU194B – August 2011 – Revised September 2017 Submit Documentation Feedback ADS794xEVM and ADS794xEVM-PDK Copyright © 2011–2017, Texas Instruments Incorporated 3 Analog Interface 2 www.ti.com Analog Interface The ADS794xEVM is designed for easy interfacing to multiple analog sources. SMA connectors allow the EVM to have input signals connected via coaxial cables. In addition, the Samtec connector provides a convenient 10-pin, dual-row, header/socket combination at P2. This header/socket provides access to the analog input pins of the ADS794x. Consult Samtec at http://www.samtec.com or call 1-800-SAMTEC-9 for a variety of mating connector options. All analog inputs are buffered by OPA836 high-speed operational amplifiers in order to properly drive the ADS794x ADC inputs. Use appropriate caution when handling these pins. Table 2 summarizes the pinout for analog interface P2. Table 2. P2: Analog Interface Pinout (Samtec 10 x 2) Pin Number Signal Description P2.2 A0(+) / OPEN CH0 positive differential input for ADS7945; open if ADS7946 is installed P2.4 A0(–) CH0 negative differential input for ADS7945; singleended input for ADS7946 P2.10 A1(+) / OPEN CH1 positive differential input for ADS7945; open if ADS7946 is installed P2.12 A1(–) CH1 negative differential input for ADS7945; singleended input for ADS7946 P2.1-19 (odd) GND Analog ground connections (except J1.15) P2.6 and P2.8 GND Analog ground connections P2.14, P2.16, and P2.18 GND Analog ground connections P2.15 VREF/4 or VREF/2 P2.20 Ext VREF Unbuffered output. VREF/4 (J6 open) or VREF/2 (J6 closed) External reference voltage input Table 3 lists the SMA analog inputs. Table 3. SMA Analog Inputs Pin Number Signal J10 A0(+) / No SMA J11 A0(–) J4 A1(+) / No SMA J5 A1(–) Description CH0 positive differential input for ADS7945; no SMA if ADS7946 is installed CH0 negative differential input for ADS7945; singleended input for ADS7946 CH1 positive differential input for ADS7945; no SMA if ADS7946 is installed CH1 negative differential input for ADS7945; singleended input for ADS7946 As noted in Table 2 and Table 3, there are different hardware configurations depending on the installed converter. The ADS7945 uses two inputs per channel because of its fully differential inputs. The ADS7946 uses one input per channel for its pseudo-differential inputs. 4 ADS794xEVM and ADS794xEVM-PDK SBAU194B – August 2011 – Revised September 2017 Submit Documentation Feedback Copyright © 2011–2017, Texas Instruments Incorporated Analog Interface www.ti.com 2.1 ADS794xEVM Analog Inputs with ADS7945 Installed Each channel of the ADS7945 uses two OPA836 operational amplifiers to drive the fully differential inputs. The input signals can be applied to either the SMA or P2 header connectors. These operational amplifiers offset the input signal to use an inverting configuration with a single supply. The EVM Operation section explains in detail how this offset is used to allow bipolar signals for the ADS7945 with jumper J6. Figure 1 illustrates the ADS794xEVM analog inputs with the ADS7945 installed. ADS7945 SMA J10 OPA836 in Inverting Configuration AIN0N (pin 6) OPA836 in Inverting Configuration AIN0P (pin 5) P2 A0(+) 4 A0(-) SMA J11 10 A1(+) 12 A1(-) OPA836 in Inverting Configuration AIN1N (pin 7) OPA836 in Inverting Configuration AIN1P (pin 8) SMA J4 SMA J5 Figure 1. ADS794xEVM and ADS7945 Analog Inputs SBAU194B – August 2011 – Revised September 2017 Submit Documentation Feedback ADS794xEVM and ADS794xEVM-PDK Copyright © 2011–2017, Texas Instruments Incorporated 5 Analog Interface 2.2 www.ti.com ADS794xEVM Analog Inputs with ADS7946 Installed Each channel of the ADS7946 uses one OPA836 to drive a single-ended input voltage. The input signals can be applied to either the SMA or P2 header connectors. These operational amplifiers offset the input signal to use an inverting configuration with a single supply. The EVM Operation section explains in detail how this offset is used to allow bipolar signals for the ADS7946 with jumper J6. Figure 2 shows the ADS794xEVM analog inputs with the ADS7946 installed. ADS7946 No SMA J10 AIN0N (pin 6) Open P2 A0(+) 4 A0(-) OPA836 in Inverting Configuration AIN0P (pin 5) SMA J11 10 A1(+) 12 A1(-) AIN1N (pin 7) Open No SMA J4 OPA836 in Inverting Configuration AIN1P (pin 8) SMA J5 Figure 2. ADS794xEVM and ADS7946 Analog Inputs 2.3 External Reference Input Pin P2.20 is an analog input for an external reference voltage when J2 is in position 2-3. The source that provides this external reference should have a voltage between 2.5 V and the analog power-supply voltage. 6 ADS794xEVM and ADS794xEVM-PDK SBAU194B – August 2011 – Revised September 2017 Submit Documentation Feedback Copyright © 2011–2017, Texas Instruments Incorporated Digital Interface www.ti.com 3 Digital Interface Samtec part numbers SSW-110-22-F-D-VS-K and TSM-110-01-L-DV-P provide a convenient 10-pin, dualrow, header/socket combination at P1. This header/socket provides access to the digital control pins of the ADC. Consult Samtec at http://www.samtec.com or call 1-800-SAMTEC-9 for a variety of mating connector options. Table 4 summarizes the pinouts for digital interface P1. Table 4. P1: Serial Interface Header 3.1 Pin Number Signal P1.1 CS P1.3 SCLK P1.7 CS Description Chip select input. Pulled high with 10-kΩ resistor. Serial clock input Chip select input. This pin is intended to be used by the MMB0 motherboard P1.11 SDI or MOSI SDI or MOSI input P1.13 SDO or MISO SDO or MISO output P1.19 PDEN Power-down input (active high). Pulled down with 10-kΩ resistor. P1.4, P1.10, and P1.18 GND Digital ground connections P1.16, P1.20 I2C bus I2C bus; used only used to program the U4 EEPROM on the EVM board P1.2, P1.5-6, P1.8-9, P1.12, P1.14-15, and P1.17 Unused Unused Serial Interface (SPI) The ADS794x ADC uses SPI serial communication in mode 0 (CPOL = 0, CPHA = 0). Because the serial clock (SCLK) frequency can be as fast as 40 MHz, the ADS794xEVM offers 47-Ω resistors between the SPI signals and P1 to aid with signal integrity. Typically, in high-speed SPI communication, fast signal edges can cause overshoot; these 47-Ω resistors slow down the signal edges in order to minimize signal overshoot. 3.2 ADS794x Channel Select as SDI (MISO) The ADS794x ADC offers direct control over the internal multiplexer using pin 11. The ADS794xEVM uses a flip-flop (see U9 in the attached schematic) to convert this pin into a typical SPI SDI (MOSI) pin. This architecture takes advantage of the SPI full-duplex data transmission sequence to control channel selection at the same time conversion data are acquired. The digital word 0x000 can be used to select channel 0, and the word 0xFFFF can be used to select channel 1. 3.3 I2C Bus for Onboard EEPROM The ADS794xEVM has an I2C bus to communicate with the onboard EEPROM that records the board name and assembly date. It is not used in any form by the ADS794x converter. SBAU194B – August 2011 – Revised September 2017 Submit Documentation Feedback ADS794xEVM and ADS794xEVM-PDK Copyright © 2011–2017, Texas Instruments Incorporated 7 Power Supplies 4 www.ti.com Power Supplies P3 is the power-supply input connector. Table 5 lists the configuration details for P3. Table 5. P3 Configuration: Power-Supply Interface Header 4.1 Pin Number Pin Name P3.3 +5VA 5-V analog supply Yes P3.5 GND Digital ground input Yes P3.6 GND Analog ground input Yes P3.7 +1.8VD 1.8-V digital supply Yes/Optional 3.3-V digital supply Yes/Optional 5-V digital supply Yes/Optional P3.9 +3.3VD P3.10 +5VD P3.1-2, P3.4, and P3.78 Unused Function Required Unused No Analog Power Options The ADS794xEVM board is designed to work with a 5-V analog power supply connected to P3.3. 4.2 Digital Power Options The ADS794xEVM uses a jumper in J3 to connect the digital power supply to either +3.3 VD (P3.10) or +5 VD (P3.9). J3 in position 1-2 connects the digital power supply to +5 VD; position 2-3 connects the digital power supply to +3.3 VD. Without a jumper in J3, the digital power supply can be connected to +1.8 VD(P3.7) with a jumper wire to pin J3.2. The jumper in J3 must always be in position 2-3 (+3.3 VD) while using the MMB0 with the EVM. 4.3 Reference Voltages The ADS794xEVM uses a jumper in J2 to select between the internal (REF5040) and external voltage reference sources. J2 in position 1-2 selects the internal reference; position 2-3 selects the external reference. The selected reference is cleaned with a RC filter and buffered with a OPA350 operational amplifier. CAUTION Digital supply and reference voltage must be at or below the analog supply voltage at all times. 8 ADS794xEVM and ADS794xEVM-PDK SBAU194B – August 2011 – Revised September 2017 Submit Documentation Feedback Copyright © 2011–2017, Texas Instruments Incorporated EVM Operation www.ti.com 5 EVM Operation This section provides information on the analog input, digital control, and general operating conditions of the ADS794xEVM without the MMB0 motherboard. Software operation is presented in Section 7. 5.1 Analog Input The ADS794xEVM offers three different analog input modes, selectable with jumper J6 and the type of input signal. Note that the ADS794x converter by itself only allows dc-coupled unipolar signals. The two additional input modes are available because OPA836 operational amplifiers drive the analog inputs. It is preferable for external signal drivers or filters to have low output impedance to reduce gain errors. Mode 1: DC-Coupled Unipolar Inputs (J6 Closed) DC-coupled unipolar signals are typically produced by single-supply signal drivers. To allow dc-coupled unipolar signals, J6 should be closed. This mode allows an input signal range from 0 V to VREF for all EVM analog inputs. In this mode, the voltage read at the ADC is equal to (VREF – VIN). Mode 2: DC-Coupled Bipolar Inputs (J6 Open) DC-coupled bipolar signals are typically produced by dual-supply signal drivers. To allow dc-coupled bipolar signals, J6 should be open. This mode allows an input signal range from –VREF/2 to +VREF/2 for all EVM analog inputs. In this mode, the voltage read at the ADC is equal to (VREF/2 – VIN). Mode 3: AC-Coupled Inputs (J6 Closed) AC-coupled signals are typically produced by high-pass filters. To allow ac-coupled bipolar signals, J6 should be closed. This mode allows an input signal range from –VREF/2 to +VREF/2 for all EVM analog inputs. In this mode, the voltage read at the ADC is equal to (VREF/2 – VIN). 5.2 Digital Control The digital control signals can be applied directly to the P1 header (top or bottom side). The modular ADS794xEVM can also be connected directly to a DSP or microcontroller interface board, such as the 56K Interface or HPA-MCU Interface boards available from Texas Instruments, or the MMB0 if purchased as part of the ADS794xEVM-PDK. For a list of compatible interface and/or accessory boards for the EVM or the ADS794x, see the relevant product folder on the TI web site. SBAU194B – August 2011 – Revised September 2017 Submit Documentation Feedback ADS794xEVM and ADS794xEVM-PDK Copyright © 2011–2017, Texas Instruments Incorporated 9 EVM Operation 5.3 www.ti.com Default Jumper Settings Figure 3 shows the jumper locations on the EVM board and the respective factory default conditions for each. Figure 3. ADS794xEVM Default Jumper Locations There are four jumpers on the ADS794xEVM board. These jumpers are used to set the CS signal entry pin (J1), select the digital logic level (J3), select the reference (J2), and to establish the input signal range type (J6). The default parameters are: • The CS signal entry pin is P1.7 (J1: 2-3). • The logic level is 3.3 V (J3: 2-3). • The onboard 4.096 V is selected as the reference voltage (J1: 1-2). • Analog input range is 0 V to VREF (4.096 V) with dc-coupled signals (J6: closed) 6 ADS794xEVM-PDK: Software Installation This section presents the steps required to the install the software. Section 7 explains how to operate the software to acquire data. Complete the following steps to install the software: Step 1. Install the ADCPro software (if not already installed) on a PC. Step 2. Install the ADS794xEVM-PDK EVM plug-in software. Step 3. Set up the ADS794xEVM-PDK hardware. Step 4. Power up the ADS794xEVM-PDK. Step 5. Connect the ADS794xEVM-PDK to the computer with a USB cable. Step 6. Complete the USB driver installation process. Each task is described in the subsequent sections of this document. 10 ADS794xEVM and ADS794xEVM-PDK SBAU194B – August 2011 – Revised September 2017 Submit Documentation Feedback Copyright © 2011–2017, Texas Instruments Incorporated ADS794xEVM-PDK: Software Installation www.ti.com 6.1 Installing the ADCPro Software CAUTION Do not connect the ADS794xEVM-PDK to a PC before completing Section 6.2 through Section 6.4. Failure to observe this caution may cause Microsoft Windows to not recognize the ADS794xEVM-PDK as a connected device. ADCPro is the primary program used to evaluate ADCs. The latest software version of ADCPro is available from the TI website at www.ti.com. Refer to the ADCPro User Guide for instructions on installing and using ADCPro. 6.2 Installing ADS794xEVM-PDK Plug-In Software The ADS794xEVM-PDK plug-in uses ADCPro; you must install ADCPro before uploading the plug-in. To install the ADS794xEVM-PDK plug-in, run the file: ads794X-adcproplugin-.exe ( refers to the installation file version number, and increments with software version releases). Doubleclick the file to run it; then follow the instructions as shown. You can also use the ADCPro Update Check feature to check for newer versions of the ADS794xEVM-PDK plug-in, once you have installed a version of it. Figure 4 and Figure 5 show the initial and completed installer screenshots, respectively. Figure 4. ADS794xEVM-PDK Plug-In Installer Figure 5. Completed ADS794xEVM-PDK Installer SBAU194B – August 2011 – Revised September 2017 Submit Documentation Feedback ADS794xEVM and ADS794xEVM-PDK Copyright © 2011–2017, Texas Instruments Incorporated 11 ADS794xEVM-PDK: Software Installation 6.3 www.ti.com Configuring the ADS794xEVM-PDK Hardware The ADS794xEVM-PDK contains both the ADS794xEVM and the MMB0 motherboard; however, the devices may be shipped unconnected or configured incorrectly. Follow these steps to verify that ADS794xEVM-PDK kit is properly configured and connected. Step 1. Unpack the ADS794xEVM-PDK kit. Step 2. Set the three jumpers on the MMB0 REV D as shown in Figure 6. Below Figure 6, there is a check list that explains the functionality of each jumper. Figure 6. MMB0 Jumper Locations Follow this check list to ensure proper operation of the MMB0 with the ADS794xEVM: • J12 must be closed. This setting allows the external supply to power up the MMB0 and the ADS794xEVM through J2 (6-VDC input), and regulate down to +5 V, 3.3 V, and 1.8 V. • J13B must be closed. This configuration connects the 5-V analog power supply with the 5-V digital power supply. • J13A must be opened. This setting allows the 5-V analog power supply to be regulated onboard. 12 ADS794xEVM and ADS794xEVM-PDK SBAU194B – August 2011 – Revised September 2017 Submit Documentation Feedback Copyright © 2011–2017, Texas Instruments Incorporated ADS794xEVM-PDK: Software Installation www.ti.com Step 3. Plug the ADS794xEVM into the MMB0, as Figure 7 illustrates. Figure 7. Connecting ADS794xEVM to MMB0 CAUTION Do not misalign the pins when plugging the ADS794xEVM into the MMB0. Check the pin alignment carefully before applying power to the PDK. Step 4. Step 5. Step 6. Set jumper J3 on the ADS794xEVM to position 2-3 in order to set the ADS794xEVM logic voltage to 3.3 V. The MMB0 uses 3.3-V logic to communicate with the ADS7945xEVM. Set jumper J1 on the ADS794xEVM to position 2-3 in order to place the CS signal in P1.7 of the EVM. The MMB0 sends the CS signal via P1.7. Set jumper J2 on the ADS794xEVM to position 1-2 if the 4.096-V internal (onboard) reference is used. If an external reference is used, set J2 to the 2-3 position. CAUTION If an external reference is used, please do not apply external reference voltage before the power is applied to the MMB0 motherboard. Step 7. Set • • • jumper J6 to match the correct type of input signal, as explained in Section 5.1: For dc-coupled unipolar input signals, J6 must be closed. For dc-oupled bipolar input signals, J6 must be opened. For ac-coupled signals, J6 must be closed. SBAU194B – August 2011 – Revised September 2017 Submit Documentation Feedback ADS794xEVM and ADS794xEVM-PDK Copyright © 2011–2017, Texas Instruments Incorporated 13 ADS794xEVM-PDK: Software Installation 6.4 www.ti.com Powering Up the ADS794xEVM-PDK Once the ADS794xEVM-PDK kit is configured, power can be applied to the MMB0. This power comes from an external supply that delivers +6 VDC to the MMB0 using the included CA-2186 cable via J2 on the MMB0 motherboard. No wall power supply is included with the PDK; an external power supply should be connected via the included CA-2186 cable where Figure 8 indicates. Figure 8. Powering Up ADS794xEVM-PDK After the power supply is connected, four green LEDs in the bottom right-hand corner of the MMB0 motherboard should light up. If these LEDs do not light up, disconnect the power and verify that J12 is closed. 6.5 First-Time Connection: ADS794xEVM-PDK to PC, Completing Driver Installation The first time that the ADS794xEVM-PDK kit is connected to the PC via USB, the PC prompts the user for two drivers. At this point, it is presumed that the ADCPro software and the ADS794xEVM plug-in have been installed, and that the ADS794xEVM-PDK kit is properly configured and powered up (refer to Section 6.1 through Section 6.4). The following sections show how to install these drivers. NOTE: Driver prompts may not appear if another PDK kit has been used on the PC before. 14 ADS794xEVM and ADS794xEVM-PDK SBAU194B – August 2011 – Revised September 2017 Submit Documentation Feedback Copyright © 2011–2017, Texas Instruments Incorporated ADS794xEVM-PDK: Software Installation www.ti.com 6.5.1 NI-VISA USB Device Driver Installation Follow these procedures to install the NI-VISA USB device driver, if prompted. Step 1. With power applied to the PDK kit, connect the PDK kit to the PC via USB. Step 2. The computer should recognize the new hardware and prompt the user for drivers, as shown in Figure 9. This driver should be present in the PC hard drive with the ADCPro files. Direct the PC to search the driver and install it by clicking Next --> at every prompt. Figure 9. NI-VISA Driver Installation Prompt 6.5.2 USBStyx Driver Installation The USBStyx driver prompt only appears when the ADCPro software uses the ADS794xEVM plug-in to communicate with the PDK hardware for the first time. Follow these procedures to install the USBStyx driver. Step 1. Make sure that the PDK kit is configured and powered up as explained in Section 6.3 and Section 6.4. Then, press the Reset button on the MMB0 upper right-hand corner once. Step 2. Start ADCPro from the Windows Start menu. Step 3. Load the ADS794xEVM plug-in from the ADCPro EVM drop-down menu as Figure 10 illustrates. Figure 10. Loading ADS794xEVM Plug-in From ADCPro SBAU194B – August 2011 – Revised September 2017 Submit Documentation Feedback ADS794xEVM and ADS794xEVM-PDK Copyright © 2011–2017, Texas Instruments Incorporated 15 ADS794xEVM-PDK: Software Installation Step 4. www.ti.com Wait for the driver prompt window to appear. When the plug-in is first loaded, the plug-in searches for the board. You will see a series of messages in the status area indicating this action; eventually, the driver prompt window will appear, as Figure 11 shows. Figure 11. USBStyx Driver Installation Prompt NOTE: If the USBStyx driver was previously installed on the PC, the status area should show the message Select Device without prompting for the driver. If this message appears, close ADCpro and proceed to Section 7. Step 5. This driver should be present in the PC hard drive with the ADCPro files. Direct the PC to search the driver and install it by clicking Next --> at every prompt. Be patient; it may take some time for the PC to find the driver. NOTE: During the driver installation, a small pop-up window may appear indicating that the firmware load has timed out. Ignore this pop-up. Continue with the USBStyx driver installation. Once driver installation has finished, click the Exit button in the small-pop up window. Step 6. 16 Close ADCPro after the USBStyx driver has been installed. ADS794xEVM and ADS794xEVM-PDK SBAU194B – August 2011 – Revised September 2017 Submit Documentation Feedback Copyright © 2011–2017, Texas Instruments Incorporated ADS794xEVM-PDK Kit Operation www.ti.com 7 ADS794xEVM-PDK Kit Operation The evaluation software is based on ADCPro. This program operates using a variety of plug-ins. To use ADCPro, load an EVM plug-in and a test plug-in. To load an EVM plug-in, select it from the EVM menu. To load a test plug-in, select it from the Test menu. To unload a plug-in, select the Unload option from the corresponding menu. The following sections describe how to use ADCPro and the ADS794xEVM plug-in to acquire data. 7.1 About the MMB0 The MMB0 provides the USB interface between the PC and the ADS794xEVM. The MMB0 is a modular EVM system motherboard. It is designed around the TMS320VC5507, a DSP with an onboard USB interface from Texas Instruments. The MMB0 also has 16 MB of SDRAM installed. The MMB0 is not sold as a DSP development board, and it is not available separately. TI cannot offer support for the MMB0 except as part of an EVM kit. For schematics or other information about the MMB0, contact Texas Instruments. 7.2 Loading the ADS794xEVM-PDK Plug-in The ADS794xEVM-PDK plug-in for ADCPro provides complete control over all settings of the ADS794x. You can adjust the ADS794xEVM settings when you are not acquiring data. During acquisition, all controls are disabled and settings may not be changed. When you change a setting on the ADS794xEVM plug-in, the setting immediately updates on the board. Settings on the ADS794xEVM correspond to settings described in the ADS794x product data sheet (available for download at http://www.ti.com); see the product data sheet for details. To load the ADS794xEVM plug-in, follow these steps. Step 1. Make sure the PDK kit is configured and powered up as explained in Section 6.3 and Section 6.4. Then, press the Reset button on the MMB0 (in the top right-hand corner) once to clear the board memory. Step 2. Start ADCPro from the Windows Start menu. Step 3. Load the ADS794xEVM plug-in from the ADCPro drop-down EVM menu; see Figure 10. Note that only one EVM plug-in can be loaded at a time. If a different plug-in is selected, the previous plug-in is unloaded. Step 4. When the plug-in is loaded, the plug-in searches for the board. A series of messages in the status area will indicate this action, eventually showing Select Device... The plug-in is now loaded and ready to work with the ADS794xEVM. SBAU194B – August 2011 – Revised September 2017 Submit Documentation Feedback ADS794xEVM and ADS794xEVM-PDK Copyright © 2011–2017, Texas Instruments Incorporated 17 ADS794xEVM-PDK Kit Operation 7.3 www.ti.com Using the ADS794xEVM Plug-in The ADS794xEVM plug-in allows the user to evaluate the ADS794x ADC. Figure 12 shows the device configuration tab of the ADS794xEVM Plug-in. Use this tab of the ADCPro software to configure the ADS794x. Figure 12. ADS794xEVM Plug-in: Device Configuration Tab The device configuration tab contains the following controls. (1) Device Selection: This control is a user input that must be set by the user, to identify whether the ADS7945 or ADS7946 is installed on the board. (2) Channel Select: This user input selects the channel to be sampled. (3) Data Rate: This control shows the data rate or sampling frequency used by the ADC to acquire data. (4) Power Down: This option controls the power-down mode of the ADC. (5) Device Interface Information: This option shows the SPI parameters that are in use while sampling data. These parameters should appear after a device is selected. (6) About: This control shows the plug-in version, MMB0 firmware version, ADS794xEVM assembly date, and ADS794xEVM board revision information. This information should appear after a device is selected. (7) Collection Bar: This feature shows the percentage of data collected during an acquisition session. 18 ADS794xEVM and ADS794xEVM-PDK SBAU194B – August 2011 – Revised September 2017 Submit Documentation Feedback Copyright © 2011–2017, Texas Instruments Incorporated ADS794xEVM-PDK Kit Operation www.ti.com 7.4 Loading the Test Plug-in Once the ADS794xEVM plug-in is configured in ADCPro, one of the four test plug-ins must be loaded in ADCPro using the drop-down Test menu, as shown in Figure 13. Note that only one Test plug-in can be loaded at a time. If a different plug-in is selected, the previous plug-in is unloaded. Figure 13. ADCPro Test Plug-ins There are four different test options available for the ADS794xEVM: • Data monitor: This test acquires data and exports it in table format as hexadecimal data. • MultiFFT: This test allows the user to acquire data and create an FFT graph of power vs. frequency to display data • MultiHistogram: This option acquires data and creates a histogram of code values. • MultiScope: This feature acquires data and displays it in a graph of voltage vs. time. For further details regarding how to set up and use the various test plug-ins, refer to the ADCPro User Guide. 7.5 Acquiring Data Once the ADS794xEVM is configured for the desired test scenario, press the Acquire button to start the data collection process; the software collects the number of data points specified in the Test plug-in Block Size control. While acquiring data, the ADS794xEVM plug-in disables all front panel controls, and the collection process bar displays the completion progress. 7.6 Troubleshooting If the ADS794xEVM plug-in cannot find the ADS794xEVM-PDK, press the RESET button on the MMB0 and try again. If ADCPro stops responding while the ADS794xEVM-PDK is connected, shut down and restart the ADCPro software. Also, try unplugging the USB cable from the PDK. Unload and reload the plug-in before reapplying power to the PDK. SBAU194B – August 2011 – Revised September 2017 Submit Documentation Feedback ADS794xEVM and ADS794xEVM-PDK Copyright © 2011–2017, Texas Instruments Incorporated 19 Bill of Materials, Board Layout, and Schematic 8 www.ti.com Bill of Materials, Board Layout, and Schematic Schematics for the ADS794xEVM are appended to this user's guide. The bill of materials is provided in Table 6. Section 8.2 shows the PCB layouts for the ADS794xEVM. 8.1 Bill of Materials NOTE: All components should be compliant with the European Union Restriction on Use of Hazardous Substances (RoHS) Directive. Some part numbers may be either leaded or RoHS. Verify that purchased components are RoHS-compliant. (For more information about TI's position on RoHS compliance, see the http://www.ti.com.) Table 6. ADS794xEVM Bill of Materials Qty Item No. 1 ADS7946 Ref Des Description Vendor Part Number Texas Instruments 6527650 Capacitor, X7R Ceramic ±10%, 16WV, 0603 Murata GRM188R71C104KA01D 1 1 N/A 4 4 C1, C13, C17, C24 2 0 C20, C23 3 4 4 C2, C4, C10, C14 Capacitor, X7R Ceramic ±10%, 10WV, 0603 TDK C1608X7R1A105K 4 2 2 C3, C11 Capacitor, X7R Ceramic ±20%, 6.3WV, 1206 Taiyo Yuden JMK316B7226ML-T 5 3 3 C5, C6, C29 Capacitor, X7R Ceramic ±10%, 6.3WV, 0805 Taiyo Yuden JMK212B7106KG-T 6 1 1 C8 Capacitor, X7R Ceramic ±10%, 10WV, 0603 Murata GRM188R71A225KE15D 6 6 C9, C12, C16, C26, C27, C28 Murata GRM1885C1H102JA01D 2 0 C22, C25 Capacitor, C0G Ceramic ±5%, 50WV, 0603 2 2 C15, C19 2 0 C18, C21 Capacitor, C0G Ceramic ±0.1p, 50WV, 0603 TDK C1608C0G1H2R2B 9 2 2 P1A, P2A Header, 20-Pin SMT Plug, .100" Gold (2x10) Samtec TSM-110-01-L-DV-P 10 2 2 P1B, P2B Header, 20-pin SMT Socket, .100" Gold (2x10) Samtec SSW-110-22-F-D-VS-K 11 1 1 P3A Header, 10-Pin SMT Plug, .100" Gold (2x5) Samtec TSM-105-01-L-DV-P 12 1 1 P3B Header, 10-pin SMT Socket, .100" Gold (2x5) Samtec SSW-105-22-F-D-VS-K 13 3 3 J1, J2, J3 Header, Strip, 3-pin .100" Gold (1x3) Samtec TSW-103-07-L-S 2 2 J5, J11 2 0 J4, J10 1 1 J6 8 8 R1, R2, R3, R4, R8, R28, R31, R42 2 0 R34, R37 17 1 1 18 1 19 2 7 8 Printed Circuit Board Amphenol 132134 Emerson 142-0701-201 Samtec TSW-102-07-L-S Resistor, Thick Film Chip, 1%, 1/10W, 0603 Panasonic ERJ-3EKF47R0V R14 Resistor, Metal Film Chip, 0.1%, 1/8W, 0805 Panasonic ERA-6AEB302V 1 R30 Resistor, Metal Film Chip, 0.1%, 1/8W, 0805 Panasonic ERA-6AEB152V 1 1 R15 Resistor, Metal Film Chip, 0.1%, 1/8W, 0805 Panasonic ERA-6AEB102V 20 1 1 R11 Resistor, Metal Film Chip, 0.1%, 1/10W, 0603 Panasonic ERA-3AEB102V 21 2 2 R5, R6 Resistor, Thick Film Chip, 1%, 1/10W, 0603 Panasonic ERJ-3EKF1002V 14 15 16 20 ADS7945 ADS794xEVM and ADS794xEVM-PDK Connector, SMA Jack Straight PCB Header Strip, 2-pin .100" Gold (1x2) SBAU194B – August 2011 – Revised September 2017 Submit Documentation Feedback Copyright © 2011–2017, Texas Instruments Incorporated Bill of Materials, Board Layout, and Schematic www.ti.com Table 6. ADS794xEVM Bill of Materials (continued) Qty Item No. ADS7946 Ref Des 4 4 R20, R21, R26, R27 4 4 R16, R17, R24, R45 4 0 R18, R22, R23, R39 3 3 R32, R40, R46 2 0 R35, R38 2 2 R9, R12 0 2 R25, R29 26 3 3 27 3 3 28 1 1 22 ADS7945 23 24 25 1 Vendor Part Number Vishay/Dale CRCW06034R99FKEA Panasonic ERA-3AEB103V Vishay/Dale CRCW06031R00FKEA Resistor, Thick Film Chip, 1/10W, 0603 Panasonic ERJ-3GEY0R00V T1, T2, T4 Test point PC Mini .040" D Red Keystone 5000 T5, T6, T7 Test point PC Mini .040" D Black Keystone 5001 T8 Test point PC Mini .040" D Yellow Keystone 5004 IC ADC, 14-bit, 2.5 MSPS, Full-Diff, QFN-16 Texas Instruments ADS7945SRTE IC ADC, 14-bit, 2.5 MSPS, PseudoDiff, QFN-16 Texas Instruments ADS7946SRTE 0 29 U1 Description Resistor, Thick Film Chip, 1%, 1/10W, 0603 Resistor, Metal Film Chip, 0.1%, 1/10W, 0603 Resistor, Thick Film Chip, 1%, 1/10W, 0603 0 1 30 1 1 U2 IC Prec Volt Ref, 4.096 V LN/LD 8MSOP Texas Instruments REF5040IDGKT 31 1 1 U3 IC Op Amp, GP, R-R 38 MHz Single, 8-MSOP Texas Instruments OPA350EA/250 32 1 1 U4 IC EEPROM, 256kBit, 400 kHz, 8TSSOP Microchip 24LC256-I/ST 33 1 1 U9 IC D-Type, F-F w/CLR Preset SM8 Texas Instruments SN74LVC2G74DCTR 2 2 U5, U8 2 0 U6, U7 IC Op Amp, R-R Out, 200 MHz, SOT-23 Texas Instruments OPA836IDBVT 4 4 N/A 3M 969102-0000-DA 34 35 SBAU194B – August 2011 – Revised September 2017 Submit Documentation Feedback 0.100 Shunt, Black ADS794xEVM and ADS794xEVM-PDK Copyright © 2011–2017, Texas Instruments Incorporated 21 Bill of Materials, Board Layout, and Schematic 8.2 www.ti.com Board Layouts Figure 14 through Figure 17 show the PCB layouts for the ADS794xEVM. NOTE: Board layouts are not to scale. These figures are intended to show how the board is laid out; they are not intended to be used for manufacturing ADS794xEVM PCBs. Figure 14. ADS794xEVM PCB: Top Layer Figure 15. ADS794xEVM PCB: Ground Layer 22 ADS794xEVM and ADS794xEVM-PDK SBAU194B – August 2011 – Revised September 2017 Submit Documentation Feedback Copyright © 2011–2017, Texas Instruments Incorporated Bill of Materials, Board Layout, and Schematic www.ti.com Figure 16. ADS794xEVM PCB: Power Layer Figure 17. ADS794xEVM PCB: Bottom Layer SBAU194B – August 2011 – Revised September 2017 Submit Documentation Feedback ADS794xEVM and ADS794xEVM-PDK Copyright © 2011–2017, Texas Instruments Incorporated 23 Schematic 9 www.ti.com Schematic Figure 18 shows the EVM schematic. +5VA +5VA U2 2 VIN 3 TEMP C14 VOUT 6 TRIM 5 REF5040 0.1u U3 R46 7 C4 REF5040IDGKT OPA350EA/250 3 4 GND 1u C13 1 6 1u 2 4 C29 1k R11 0 R12 C6 R30 CH_SEL R14 T3 10u T8 +VD 1.5k J6 3k UniPolar VCM_Ouput R3 5 3 C5 R19 5 4 3 2 47 CH_SEL R15 8 PRE CLR UN_POL_VCM A0(+) 1 7 6 Unipolar J10 CLK Q Q GND 4 10u 1k U9 VCC REF IN/EXT J2 10u EXT_REF T4 D 1 R28 2 47 SN74LVC2G74DCTR +5VA NI 1u C2 +VD J11 C8 A0(-) 1 2.2u C1 +5VA R10 0.1u R6 0.1u /CS 10k C10 5 4 3 2 C17 R31 47 1u UN_POL_VCM NI 6 3 U5 5 4 U1 1 R32 C16 4.99 R20 3 REFN 2 REFP 1 AVDD GND 2 1000p C27 OPA836IDBVT 5 DVDD SDO 6 C15 2.2p 16 AIN0P 1000p J1 /CS or FSX 1 4 AIN0N SCLK /CS R1 47 SCLK R2 47 FSX 15 SCLK 14 SCLK MOSI A0(-) P2 1 3 5 7 9 11 13 15 17 19 7 R17 A0(-) A1(+) A1(-) REF+ R16 10k 8 C23 +5VA * 47 UN_POL_VCM U7 6 3 * C22 * 0.1u CH_SEL 4 * +3.3VD R5 10k R7 1 R26 U4 4.99 * * C20 NI P3 1 3 5 7 9 0.1u U6 6 5 * * 4 1 R38 R27 4.99 R9 R29 R39 A1(-) * 10k R18 C3 NI C11 C12 22u 1000p 22u 0 +3.3VD 2.2p * 10k 5 4 3 2 1 T2 1000p T1 2 OPA836IDBVT C18 J5 +VD C9 +5VA 1000p A1(+) +VD +5VD J3 VD 5.0/3.3 +5VA 1 C25 +5VD 2 4 6 8 10 +3.3VD 47 3 24LC256-I/ST 47 +5VA UN_POL_VCM 8 5 6 4 10k +5VA * VCC SDA SCL GND NI 5 4 3 2 R22 A0 A1 A2 WP 2.2p R44 R37 1 2 3 7 R8 OPA836IDBVT 10k NI 10 ADS7945/6 * R25 R23 11 2 C21 A0(+) MISO 47 R4 1 1000p J4 SDO 12 NC NC 9 17 R35 5 13 2 4 6 8 10 12 14 16 18 20 GPIO5 AIN1P THERMAL_PAD R34 A1(+) PDEN 1000p EXT_REF_IN 1 CS AIN1N C28 2 4 6 8 10 12 14 16 18 20 A0(+) 10k P1 1 3 5 7 9 11 13 15 17 19 T7 +5VA R43 R42 C24 0.1u AGND 47 UN_POL_VCM C26 3 T6 6 5 U8 NI 1000p R40 1 AGND 1 4 2 T5 OPA836IDBVT C19 A1(-) R45 10k R24 2.2p R21 4.99 AGND 10k Figure 18. EVM Schematic 24 ADS794xEVM and ADS794xEVM-PDK SBAU194B – August 2011 – Revised September 2017 Submit Documentation Feedback Copyright © 2011–2017, Texas Instruments Incorporated Revision History www.ti.com Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from A Revision (February 2016) to B Revision ............................................................................................. Page • Added missing schematic diagram .................................................................................................... 24 Changes from Original (August 2011) to A Revision ..................................................................................................... Page • • • Replaced reference of wall supply to external supply. ............................................................................. 12 Replaced reference of wall supply to external supply. ............................................................................. 14 Modified Powering Up ADS794xEVM-PDK image. ................................................................................. 14 SBAU194B – August 2011 – Revised September 2017 Submit Documentation Feedback Copyright © 2011–2017, Texas Instruments Incorporated Revision History 25 STANDARD TERMS FOR EVALUATION MODULES 1. Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms set forth herein. User's acceptance of the EVM is expressly subject to the following terms. 1.1 EVMs are intended solely for product or software developers for use in a research and development setting to facilitate feasibility evaluation, experimentation, or scientific analysis of TI semiconductors products. EVMs have no direct function and are not finished products. EVMs shall not be directly or indirectly assembled as a part or subassembly in any finished product. For clarification, any software or software tools provided with the EVM (“Software”) shall not be subject to the terms and conditions set forth herein but rather shall be subject to the applicable terms that accompany such Software 1.2 EVMs are not intended for consumer or household use. EVMs may not be sold, sublicensed, leased, rented, loaned, assigned, or otherwise distributed for commercial purposes by Users, in whole or in part, or used in any finished product or production system. 2 Limited Warranty and Related Remedies/Disclaimers: 2.1 These terms do not apply to Software. The warranty, if any, for Software is covered in the applicable Software License Agreement. 2.2 TI warrants that the TI EVM will conform to TI's published specifications for ninety (90) days after the date TI delivers such EVM to User. Notwithstanding the foregoing, TI shall not be liable for a nonconforming EVM if (a) the nonconformity was caused by neglect, misuse or mistreatment by an entity other than TI, including improper installation or testing, or for any EVMs that have been altered or modified in any way by an entity other than TI, (b) the nonconformity resulted from User's design, specifications or instructions for such EVMs or improper system design, or (c) User has not paid on time. Testing and other quality control techniques are used to the extent TI deems necessary. TI does not test all parameters of each EVM. User's claims against TI under this Section 2 are void if User fails to notify TI of any apparent defects in the EVMs within ten (10) business days after delivery, or of any hidden defects with ten (10) business days after the defect has been detected. 2.3 TI's sole liability shall be at its option to repair or replace EVMs that fail to conform to the warranty set forth above, or credit User's account for such EVM. TI's liability under this warranty shall be limited to EVMs that are returned during the warranty period to the address designated by TI and that are determined by TI not to conform to such warranty. If TI elects to repair or replace such EVM, TI shall have a reasonable time to repair such EVM or provide replacements. Repaired EVMs shall be warranted for the remainder of the original warranty period. Replaced EVMs shall be warranted for a new full ninety (90) day warranty period. 3 Regulatory Notices: 3.1 United States 3.1.1 Notice applicable to EVMs not FCC-Approved: FCC NOTICE: This kit is designed to allow product developers to evaluate electronic components, circuitry, or software associated with the kit to determine whether to incorporate such items in a finished product and software developers to write software applications for use with the end product. This kit is not a finished product and when assembled may not be resold or otherwise marketed unless all required FCC equipment authorizations are first obtained. Operation is subject to the condition that this product not cause harmful interference to licensed radio stations and that this product accept harmful interference. Unless the assembled kit is designed to operate under part 15, part 18 or part 95 of this chapter, the operator of the kit must operate under the authority of an FCC license holder or must secure an experimental authorization under part 5 of this chapter. 3.1.2 For EVMs annotated as FCC – FEDERAL COMMUNICATIONS COMMISSION Part 15 Compliant: CAUTION This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. FCC Interference Statement for Class A EVM devices NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. FCC Interference Statement for Class B EVM devices NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • • • • Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. 3.2 Canada 3.2.1 For EVMs issued with an Industry Canada Certificate of Conformance to RSS-210 or RSS-247 Concerning EVMs Including Radio Transmitters: This device complies with Industry Canada license-exempt RSSs. Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Concernant les EVMs avec appareils radio: Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement. Concerning EVMs Including Detachable Antennas: Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication. This radio transmitter has been approved by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device. Concernant les EVMs avec antennes détachables Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la puissance isotrope rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante. Le présent émetteur radio a été approuvé par Industrie Canada pour fonctionner avec les types d'antenne énumérés dans le manuel d’usage et ayant un gain admissible maximal et l'impédance requise pour chaque type d'antenne. Les types d'antenne non inclus dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de l'émetteur 3.3 Japan 3.3.1 Notice for EVMs delivered in Japan: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_01.page 日本国内に 輸入される評価用キット、ボードについては、次のところをご覧ください。 http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_01.page 3.3.2 Notice for Users of EVMs Considered “Radio Frequency Products” in Japan: EVMs entering Japan may not be certified by TI as conforming to Technical Regulations of Radio Law of Japan. If User uses EVMs in Japan, not certified to Technical Regulations of Radio Law of Japan, User is required to follow the instructions set forth by Radio Law of Japan, which includes, but is not limited to, the instructions below with respect to EVMs (which for the avoidance of doubt are stated strictly for convenience and should be verified by User): 1. 2. 3. Use EVMs in a shielded room or any other test facility as defined in the notification #173 issued by Ministry of Internal Affairs and Communications on March 28, 2006, based on Sub-section 1.1 of Article 6 of the Ministry’s Rule for Enforcement of Radio Law of Japan, Use EVMs only after User obtains the license of Test Radio Station as provided in Radio Law of Japan with respect to EVMs, or Use of EVMs only after User obtains the Technical Regulations Conformity Certification as provided in Radio Law of Japan with respect to EVMs. Also, do not transfer EVMs, unless User gives the same notice above to the transferee. Please note that if User does not follow the instructions above, User will be subject to penalties of Radio Law of Japan. 【無線電波を送信する製品の開発キットをお使いになる際の注意事項】 開発キットの中には技術基準適合証明を受けて いないものがあります。 技術適合証明を受けていないもののご使用に際しては、電波法遵守のため、以下のいずれかの 措置を取っていただく必要がありますのでご注意ください。 1. 2. 3. 電波法施行規則第6条第1項第1号に基づく平成18年3月28日総務省告示第173号で定められた電波暗室等の試験設備でご使用 いただく。 実験局の免許を取得後ご使用いただく。 技術基準適合証明を取得後ご使用いただく。 なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。 上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。 日本テキサス・イ ンスツルメンツ株式会社 東京都新宿区西新宿6丁目24番1号 西新宿三井ビル 3.3.3 Notice for EVMs for Power Line Communication: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page 電力線搬送波通信についての開発キットをお使いになる際の注意事項については、次のところをご覧ください。http:/ /www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page 3.4 European Union 3.4.1 For EVMs subject to EU Directive 2014/30/EU (Electromagnetic Compatibility Directive): This is a class A product intended for use in environments other than domestic environments that are connected to a low-voltage power-supply network that supplies buildings used for domestic purposes. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures. 4 EVM Use Restrictions and Warnings: 4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS. 4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling or using the EVM, including without limitation any warning or restriction notices. The notices contain important safety information related to, for example, temperatures and voltages. 4.3 Safety-Related Warnings and Restrictions: 4.3.1 User shall operate the EVM within TI’s recommended specifications and environmental considerations stated in the user guide, other available documentation provided by TI, and any other applicable requirements and employ reasonable and customary safeguards. Exceeding the specified performance ratings and specifications (including but not limited to input and output voltage, current, power, and environmental ranges) for the EVM may cause personal injury or death, or property damage. If there are questions concerning performance ratings and specifications, User should contact a TI field representative prior to connecting interface electronics including input power and intended loads. Any loads applied outside of the specified output range may also result in unintended and/or inaccurate operation and/or possible permanent damage to the EVM and/or interface electronics. Please consult the EVM user guide prior to connecting any load to the EVM output. If there is uncertainty as to the load specification, please contact a TI field representative. During normal operation, even with the inputs and outputs kept within the specified allowable ranges, some circuit components may have elevated case temperatures. These components include but are not limited to linear regulators, switching transistors, pass transistors, current sense resistors, and heat sinks, which can be identified using the information in the associated documentation. When working with the EVM, please be aware that the EVM may become very warm. 4.3.2 EVMs are intended solely for use by technically qualified, professional electronics experts who are familiar with the dangers and application risks associated with handling electrical mechanical components, systems, and subsystems. User assumes all responsibility and liability for proper and safe handling and use of the EVM by User or its employees, affiliates, contractors or designees. User assumes all responsibility and liability to ensure that any interfaces (electronic and/or mechanical) between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electrical shock hazard. User assumes all responsibility and liability for any improper or unsafe handling or use of the EVM by User or its employees, affiliates, contractors or designees. 4.4 User assumes all responsibility and liability to determine whether the EVM is subject to any applicable international, federal, state, or local laws and regulations related to User’s handling and use of the EVM and, if applicable, User assumes all responsibility and liability for compliance in all respects with such laws and regulations. User assumes all responsibility and liability for proper disposal and recycling of the EVM consistent with all applicable international, federal, state, and local requirements. 5. Accuracy of Information: To the extent TI provides information on the availability and function of EVMs, TI attempts to be as accurate as possible. However, TI does not warrant the accuracy of EVM descriptions, EVM availability or other information on its websites as accurate, complete, reliable, current, or error-free. 6. Disclaimers: 6.1 EXCEPT AS SET FORTH ABOVE, EVMS AND ANY MATERIALS PROVIDED WITH THE EVM (INCLUDING, BUT NOT LIMITED TO, REFERENCE DESIGNS AND THE DESIGN OF THE EVM ITSELF) ARE PROVIDED "AS IS" AND "WITH ALL FAULTS." TI DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, REGARDING SUCH ITEMS, INCLUDING BUT NOT LIMITED TO ANY EPIDEMIC FAILURE WARRANTY OR IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF ANY THIRD PARTY PATENTS, COPYRIGHTS, TRADE SECRETS OR OTHER INTELLECTUAL PROPERTY RIGHTS. 6.2 EXCEPT FOR THE LIMITED RIGHT TO USE THE EVM SET FORTH HEREIN, NOTHING IN THESE TERMS SHALL BE CONSTRUED AS GRANTING OR CONFERRING ANY RIGHTS BY LICENSE, PATENT, OR ANY OTHER INDUSTRIAL OR INTELLECTUAL PROPERTY RIGHT OF TI, ITS SUPPLIERS/LICENSORS OR ANY OTHER THIRD PARTY, TO USE THE EVM IN ANY FINISHED END-USER OR READY-TO-USE FINAL PRODUCT, OR FOR ANY INVENTION, DISCOVERY OR IMPROVEMENT, REGARDLESS OF WHEN MADE, CONCEIVED OR ACQUIRED. 7. USER'S INDEMNITY OBLIGATIONS AND REPRESENTATIONS. USER WILL DEFEND, INDEMNIFY AND HOLD TI, ITS LICENSORS AND THEIR REPRESENTATIVES HARMLESS FROM AND AGAINST ANY AND ALL CLAIMS, DAMAGES, LOSSES, EXPENSES, COSTS AND LIABILITIES (COLLECTIVELY, "CLAIMS") ARISING OUT OF OR IN CONNECTION WITH ANY HANDLING OR USE OF THE EVM THAT IS NOT IN ACCORDANCE WITH THESE TERMS. THIS OBLIGATION SHALL APPLY WHETHER CLAIMS ARISE UNDER STATUTE, REGULATION, OR THE LAW OF TORT, CONTRACT OR ANY OTHER LEGAL THEORY, AND EVEN IF THE EVM FAILS TO PERFORM AS DESCRIBED OR EXPECTED. 8. Limitations on Damages and Liability: 8.1 General Limitations. IN NO EVENT SHALL TI BE LIABLE FOR ANY SPECIAL, COLLATERAL, INDIRECT, PUNITIVE, INCIDENTAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES IN CONNECTION WITH OR ARISING OUT OF THESE TERMS OR THE USE OF THE EVMS , REGARDLESS OF WHETHER TI HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. EXCLUDED DAMAGES INCLUDE, BUT ARE NOT LIMITED TO, COST OF REMOVAL OR REINSTALLATION, ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, RETESTING, OUTSIDE COMPUTER TIME, LABOR COSTS, LOSS OF GOODWILL, LOSS OF PROFITS, LOSS OF SAVINGS, LOSS OF USE, LOSS OF DATA, OR BUSINESS INTERRUPTION. NO CLAIM, SUIT OR ACTION SHALL BE BROUGHT AGAINST TI MORE THAN TWELVE (12) MONTHS AFTER THE EVENT THAT GAVE RISE TO THE CAUSE OF ACTION HAS OCCURRED. 8.2 Specific Limitations. IN NO EVENT SHALL TI'S AGGREGATE LIABILITY FROM ANY USE OF AN EVM PROVIDED HEREUNDER, INCLUDING FROM ANY WARRANTY, INDEMITY OR OTHER OBLIGATION ARISING OUT OF OR IN CONNECTION WITH THESE TERMS, , EXCEED THE TOTAL AMOUNT PAID TO TI BY USER FOR THE PARTICULAR EVM(S) AT ISSUE DURING THE PRIOR TWELVE (12) MONTHS WITH RESPECT TO WHICH LOSSES OR DAMAGES ARE CLAIMED. THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT. 9. Return Policy. Except as otherwise provided, TI does not offer any refunds, returns, or exchanges. Furthermore, no return of EVM(s) will be accepted if the package has been opened and no return of the EVM(s) will be accepted if they are damaged or otherwise not in a resalable condition. If User feels it has been incorrectly charged for the EVM(s) it ordered or that delivery violates the applicable order, User should contact TI. All refunds will be made in full within thirty (30) working days from the return of the components(s), excluding any postage or packaging costs. 10. Governing Law: These terms and conditions shall be governed by and interpreted in accordance with the laws of the State of Texas, without reference to conflict-of-laws principles. User agrees that non-exclusive jurisdiction for any dispute arising out of or relating to these terms and conditions lies within courts located in the State of Texas and consents to venue in Dallas County, Texas. Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief in any United States or foreign court. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2017, Texas Instruments Incorporated IMPORTANT NOTICE FOR TI DESIGN INFORMATION AND RESOURCES Texas Instruments Incorporated (‘TI”) technical, application or other design advice, services or information, including, but not limited to, reference designs and materials relating to evaluation modules, (collectively, “TI Resources”) are intended to assist designers who are developing applications that incorporate TI products; by downloading, accessing or using any particular TI Resource in any way, you (individually or, if you are acting on behalf of a company, your company) agree to use it solely for this purpose and subject to the terms of this Notice. TI’s provision of TI Resources does not expand or otherwise alter TI’s applicable published warranties or warranty disclaimers for TI products, and no additional obligations or liabilities arise from TI providing such TI Resources. TI reserves the right to make corrections, enhancements, improvements and other changes to its TI Resources. You understand and agree that you remain responsible for using your independent analysis, evaluation and judgment in designing your applications and that you have full and exclusive responsibility to assure the safety of your applications and compliance of your applications (and of all TI products used in or for your applications) with all applicable regulations, laws and other applicable requirements. You represent that, with respect to your applications, you have all the necessary expertise to create and implement safeguards that (1) anticipate dangerous consequences of failures, (2) monitor failures and their consequences, and (3) lessen the likelihood of failures that might cause harm and take appropriate actions. You agree that prior to using or distributing any applications that include TI products, you will thoroughly test such applications and the functionality of such TI products as used in such applications. TI has not conducted any testing other than that specifically described in the published documentation for a particular TI Resource. You are authorized to use, copy and modify any individual TI Resource only in connection with the development of applications that include the TI product(s) identified in such TI Resource. NO OTHER LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE TO ANY OTHER TI INTELLECTUAL PROPERTY RIGHT, AND NO LICENSE TO ANY TECHNOLOGY OR INTELLECTUAL PROPERTY RIGHT OF TI OR ANY THIRD PARTY IS GRANTED HEREIN, including but not limited to any patent right, copyright, mask work right, or other intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information regarding or referencing third-party products or services does not constitute a license to use such products or services, or a warranty or endorsement thereof. Use of TI Resources may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI. TI RESOURCES ARE PROVIDED “AS IS” AND WITH ALL FAULTS. TI DISCLAIMS ALL OTHER WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED, REGARDING TI RESOURCES OR USE THEREOF, INCLUDING BUT NOT LIMITED TO ACCURACY OR COMPLETENESS, TITLE, ANY EPIDEMIC FAILURE WARRANTY AND ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT OF ANY THIRD PARTY INTELLECTUAL PROPERTY RIGHTS. TI SHALL NOT BE LIABLE FOR AND SHALL NOT DEFEND OR INDEMNIFY YOU AGAINST ANY CLAIM, INCLUDING BUT NOT LIMITED TO ANY INFRINGEMENT CLAIM THAT RELATES TO OR IS BASED ON ANY COMBINATION OF PRODUCTS EVEN IF DESCRIBED IN TI RESOURCES OR OTHERWISE. IN NO EVENT SHALL TI BE LIABLE FOR ANY ACTUAL, DIRECT, SPECIAL, COLLATERAL, INDIRECT, PUNITIVE, INCIDENTAL, CONSEQUENTIAL OR EXEMPLARY DAMAGES IN CONNECTION WITH OR ARISING OUT OF TI RESOURCES OR USE THEREOF, AND REGARDLESS OF WHETHER TI HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. You agree to fully indemnify TI and its representatives against any damages, costs, losses, and/or liabilities arising out of your noncompliance with the terms and provisions of this Notice. This Notice applies to TI Resources. Additional terms apply to the use and purchase of certain types of materials, TI products and services. These include; without limitation, TI’s standard terms for semiconductor products http://www.ti.com/sc/docs/stdterms.htm), evaluation modules, and samples (http://www.ti.com/sc/docs/sampterms.htm). Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2017, Texas Instruments Incorporated
ADS7946EVM-PDK 价格&库存

很抱歉,暂时无法提供与“ADS7946EVM-PDK”相匹配的价格&库存,您可以联系我们找货

免费人工找货