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DS90UH925ATRHSTQ1

DS90UH925ATRHSTQ1

  • 厂商:

    BURR-BROWN(德州仪器)

  • 封装:

    WQFN48_EP

  • 描述:

    IC SERIAL/DESERIAL 24BIT 48WQFN

  • 数据手册
  • 价格&库存
DS90UH925ATRHSTQ1 数据手册
Sample & Buy Product Folder Technical Documents Support & Community Tools & Software DS90UH925AQ-Q1 SNLS481 – JUNE 2014 DS90UH925AQ-Q1 720p 24-bit Color FPD-Link III Serializer with HDCP 1 Features 3 Description • The DS90UH925AQ serializer, in conjunction with the DS90UH926Q deserializer, provides a solution for secure distribution of content-protected digital video within automotive entertainment systems. This chipset translates a parallel RGB Video Interface into a single pair high-speed serialized interface. The digital video data is protected using the industry standard HDCP copy protection scheme. The serial bus scheme, FPD-Link III, supports video and audio data transmission and full duplex control including I2C communication over a single differential link. Consolidation of video data and control over a single differential pair reduces the interconnect size and weight, while also eliminating skew issues and simplifying system design. 1 • • • • • • • • • • • • • • • Integrated HDCP Cipher Engine with On-chip Key Storage Bidirectional Control Interface Channel Interface with I2C Compatible Serial Control Bus Supports High Definition (720p) Digital Video Format RGB888 + VS, HS, DE and I2S Audio Supported 5 – 85 MHz PCLK Supported Single 3.3 V Operation with 1.8 V or 3.3 V Compatible LVCMOS I/O Interface AC-coupled STP Interconnect up to 10 meters Parallel LVCMOS Video Inputs DC-balanced & Scrambled Data with Embedded Clock Supports HDCP Repeater Application Dedicated Interrupt Pin for Remote Interrupts Internal Pattern Generation Low Power Modes Minimize Power Dissipation Automotive Grade Product: AEC-Q100 Grade 2 Qualified >8 kV HBM and ISO 10605 ESD rating Backward Compatible Modes 2 Applications • • • The DS90UH925AQ serializer embeds the clock, content protects the data payload, and level shifts the signals to high-speed low voltage differential signaling. Up to 24 RGB data bits are serialized along with three video control signals and up to two I2S data inputs. EMI is minimized by the use of low voltage differential signaling, data scrambling and randomization and spread spectrum clocking compatibility. The HDCP cipher engine is implemented in the serializer and deserializer. HDCP keys are stored in on-chip memory. Remote interrupts from the downstream DS90UH926Q deserializer are mirrored to a local output pin. Automotive Touch Screen Display Automotive Display for Navigation Rear Seat Entertainment Systems Device Information(1) PART NUMBER PACKAGE DS90UH925AQ-Q1 WQFN RHS (48) BODY SIZE (NOM) 7.00 mm × 7.00 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Typical Eye Diagram 4 Simplified Schematic 0.1 PF SCL SDA IDx R[7:0] G[7:0] B[7:0] HS VS DE PCLK 0.1 PF DOUT+ RIN+ DOUT- PDB I2S AUDIO (STEREO) VDDIO VDD33 (3.3V) (1.8V or 3.3V) FPD-Link III 1 Pair / AC Coupled 3 / DS90UH925AQ Serializer DAP RIN100 ohm STP Cable PDB OSS_SEL OEN MODE_SEL MODE_SEL INTB INTB_IN REM_INTB SCL SDA IDx DS90UH926Q Deserializer LOCK PASS 3 / DAP I2S AUDIO (STEREO) MCLK RGB Display 720p 24-bit color depth Magnitude (80 mV/DIV) HOST Graphics Processor RGB Digital Display Interface VDD33 VDDIO (1.8V or 3.3V) (3.3V) R[7:0] G[7:0] B[7:0] HS VS DE PCLK Time (100 ps/DIV) 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. DS90UH925AQ-Q1 SNLS481 – JUNE 2014 www.ti.com Table of Contents 1 2 3 4 5 6 7 Features .................................................................. Applications ........................................................... Description ............................................................. Simplified Schematic............................................. Revision History..................................................... Pin Configuration and Functions ......................... Specifications......................................................... 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 7.10 7.11 1 1 1 1 2 3 6 8 Typical Characteristics ........................................ 15 Detailed Description ............................................ 16 8.1 Overview ................................................................. 16 8.2 Device Functional Modes........................................ 23 8.3 Programming........................................................... 27 9 Application and Implementation ........................ 43 9.1 Application Information............................................ 43 9.2 Typical Application .................................................. 43 Absolute Maximum Ratings ...................................... 6 Handling Ratings....................................................... 6 Recommended Operating Conditions....................... 6 Thermal Information .................................................. 7 DC Electrical Characteristics ................................... 8 AC Electrical Characteristics (1) (2) (3) ..................... 10 Recommended Timing for the Serial Control Bus .. 11 DC and AC Serial Control Bus Characteristics....... 12 AC Timing Diagrams and Test Circuits................... 12 Switching Characteristics ...................................... 15 10 Power Supply Recommendations ..................... 46 11 Layout................................................................... 47 11.1 Layout Guidelines ................................................. 47 11.2 Layout Example .................................................... 47 12 Device and Documentation Support ................. 50 12.1 Trademarks ........................................................... 50 12.2 Electrostatic Discharge Caution ............................ 50 12.3 Glossary ................................................................ 50 13 Mechanical, Packaging, and Orderable Information ........................................................... 50 5 Revision History 2 DATE REVISION NOTES June 2014 * Initial release. Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated Product Folder Links: DS90UH925AQ-Q1 DS90UH925AQ-Q1 www.ti.com SNLS481 – JUNE 2014 6 Pin Configuration and Functions G1/GPIO3 G0/GPIO2 R7 R6 R5 INTB VDDIO R4 R3 R2 R1/GPIO1 R0/GPIO0 36 35 34 33 32 31 30 29 28 27 26 25 DS90UH925AQ Pin Diagram 48 Pins Top View G2 37 24 MODE_SEL G3 38 23 CMF G4 39 22 VDD33 G5 40 21 PDB G6 41 20 DOUT+ G7 42 DS90UH925AQ 19 DOUT- B0/GPO_REG4 43 TOP VIEW 18 RES1 B1/I2S_DB/GPO_REG5 44 17 CAPHS12 B2 45 16 REM_INTB 15 RES0 DAP = GND 5 6 7 8 9 10 11 12 IDx CAPL12 SCL SDA PCLK I2S_DA/GPO_REG6 I2S_WC/GPO_REG7 I2S_CLK DE 13 4 48 VS B5 3 CAPP12 HS 14 2 47 B7 B4 1 46 B6 B3 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated Product Folder Links: DS90UH925AQ-Q1 3 DS90UH925AQ-Q1 SNLS481 – JUNE 2014 www.ti.com Pin Functions PIN NAME PIN # I/O, TYPE DESCRIPTION LVCMOS PARALLEL INTERFACE R[7:0] 34, 33, 32, 29, 28, 27, 26, 25 I, LVCMOS w/ pull down RED Parallel Interface Data Input Pins Leave open if unused R0 can optionally be used as GPIO0 and R1 can optionally be used as GPIO1. G[7:0] 42, 41, 40, 39, 38, 37, 36, 35 I, LVCMOS w/ pull down GREEN Parallel Interface Data Input Pins Leave open if unused G0 can optionally be used as GPIO2 and G1 can optionally be used as GPIO3. B[7:0] 2, 1, 48, 47, 46, 45, 44, 43 I, LVCOS w/ pull down BLUE Parallel Interface Data Input Pins Leave open if unused B0 can optionally be used as GPO_REG4 and B1 can optionally be used as GPO_REG5. HS 3 I, LVCMOS w/ pull down Horizontal Sync Input Pin Video control signal pulse width must be 3 PCLKs or longer to be transmitted when the Control Signal Filter is enabled. There is no restriction on the minimum transition pulse when the Control Signal Filter is disabled. The signal is limited to 2 transitions per 130 PCLKs. See Table 6 VS 4 I, LVCMOS w/ pull down Vertical Sync Input Pin Video control signal is limited to 1 transition per 130 PCLKs. Thus, the minimum pulse width is 130 PCLKs. DE 5 I, LVCMOS w/ pull down Data Enable Input Pin Video control signal pulse width must be 3 PCLKs or longer to be transmitted when the Control Signal Filter is enabled. There is no restriction on the minimum transition pulse when the Control Signal Filter is disabled. The signal is limited to 2 transitions per 130 PCLKs. See Table 6 PCLK 10 I, LVCMOS w/ pull down Pixel Clock Input Pin. Strobe edge set by RFB configuration register. See Table 6 13, 12, 11 I, LVCMOS w/ pull down Digital Audio Interface Data Input Pins Leave open if unused I2S_WC can optionally be used as GPO_REG7, and I2S_DA can optionally be used as GPO_REG6. I2S_CLK, I2S_WC, I2S_DA OPTIONAL PARALLEL INTERFACE I2S_DB 44 I, LVCMOS w/ pull down Second Channel Digital Audio Interface Data Input pin at 18–bit color mode and set by MODE_SEL pin or configuration register Leave open if unused I2S_DB can optionally be used as B1 or GPO_REG5. GPIO[3:0] 36, 35, 26, 25 I/O, LVCMOS General Purpose IOs. Available only in 18-bit color mode, and set by MODE_SEL pin or w/ pull down configuration register. See Table 6 Leave open if unused Shared with G1, G0, R1 and R0. GPO_REG[ 7:4] 12, 11, 44, 43 O, LVCMOS w/ pull down General Purpose Outputs and set by configuration register. See Table 6 Share with I2S_CLK, I2S_WC, I2S_DA, I2S_DB or B1, B0. Power-down Mode Input Pin PDB = H, device is enabled (normal operation) Refer to ”Power Up Requirements and PDB Pin” in the Applications Information Section. PDB = L, device is powered down. When the device is in the powered down state, the Driver Outputs are both HIGH, the PLL is shutdown, and IDD is minimized. Control Registers are RESET. CONTROL PDB 21 I, LVCMOS w/ pull-down MODE_SEL 24 I, Analog Device Configuration Select. See Table 4 IDx 6 I, Analog I2C Serial Control Bus Device ID Address Select External pull-up to VDD33 is required under all conditions, DO NOT FLOAT. Connect to external pull-up and pull-down resistor to create a voltage divider. See Figure 20 SCL 8 I/O, LVCMOS I2C Clock Input / Output Interface Open Drain Must have an external pull-up to VDD33, DO NOT FLOAT. Recommended pull-up: 4.7 kΩ. SDA 9 I/O, LVCMOS I2C Data Input / Output Interface Open Drain Must have an external pull-up to VDD33, DO NOT FLOAT. Recommended pull-up: 4.7 kΩ. I2C 4 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated Product Folder Links: DS90UH925AQ-Q1 DS90UH925AQ-Q1 www.ti.com SNLS481 – JUNE 2014 Pin Functions (continued) PIN NAME PIN # I/O, TYPE DESCRIPTION INTB 31 O, LVCMOS Open Drain Interrupt. Read ISR register to determine source. Interrupt clears on ISR read. INTB = H, normal INTB = L, Interrupt request Recommended pull-up: 4.7 kΩ to VDDIO REM_INTB 16 O, LVCMOS Interrupt. Mirrors status of INTB_IN from the remote deserializer. Note: REM_INTB will be driven LOW until lock is achieved with the downstream serializer. REM_INTB = H, normal REM_INTB = L, interrupt request STATUS FPD-Link III SERIAL INTERFACE DOUT+ 20 O, LVDS True Output The output must be AC-coupled with a 0.1µF capacitor. DOUT- 19 O, LVDS Inverting Output The output must be AC-coupled with a 0.1µF capacitor. CMF 23 Analog Common Mode Filter. Connect 0.1µF to GND POWER (1) and GROUND VDD33 22 Power Power to on-chip regulator 3.0 V - 3.6 V. Requires 4.7 uF to GND VDDIO 30 Power LVCMOS I/O Power 1.8 V ±5% OR 3.0 V - 3.6 V. Requires 4.7 uF to GND GND DAP Ground DAP is the large metal contact at the bottom side, located at the center of the WQFN package. Connect to the ground plane (GND) with at least 9 vias. REGULATOR CAPACITOR CAPHS12, CAPP12 CAPL12 17, 14 CAP Decoupling capacitor connection for on-chip regulator. Requires a 4.7uF to GND at each CAP pin. 7 CAP Decoupling capacitor connection for on-chip regulator. Requires two 4.7uF to GND at this CAP pin. 18, 15 GND Reserved. Tie to Ground. OTHERS RES[1:0] (1) The VDD (VDD33 and VDDIO) supply ramp should be faster than 1.5 ms with a monotonic rise. Refer to Power Up Requirements and PDB Pin for details. Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated Product Folder Links: DS90UH925AQ-Q1 5 DS90UH925AQ-Q1 SNLS481 – JUNE 2014 www.ti.com 7 Specifications 7.1 Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted) (1) MIN MAX UNIT VDD33 Supply Voltage PARAMETER –0.3 +4.0 V VDDIO Supply Voltage –0.3 +4.0 V LVCMOS I/O Voltage –0.3 VDDIO + 0.3 V Serializer Output Voltage –0.3 +2.75 V +150 °C TJ Junction Temperature For soldering specifications: see product folder at www.ti.com and www.ti.com/lit/an/snoa549c/snoa549c.pdf (1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. 7.2 Handling Ratings Tstg Storage temperature range 48 Lead WQFN Package Human body model (HBM), per AEC Q100-002 (1) MIN MAX UNIT -65 +150 °C -8 +8 Charged device model (CDM), per AEC Q100-011 -1.25 +1.25 Machine Model -250 +250 ESD Rating (IEC 61000-4-2) RD = 330Ω, CS = 150pF Air Discharge (DOUT+, DOUT-) -15 +15 Contact Discharge (DOUT+, DOUT-) -8 +8 ESD Rating (ISO10605) RD = 330Ω, CS = 150pF RD = 2KΩ, CS = 150pF or 330pF Air Discharge (DOUT+, DOUT-) -15 +15 Contact Discharge (DOUT+, DOUT-) -8 +8 V(ESD) (1) Electrostatic discharge kV V kV kV AEC Q100-002 indicates HBM stressing is done in accordance with the ANSI/ESDA/JEDEC JS-001 specification. 7.3 Recommended Operating Conditions MIN TYP MAX UNIT Supply Voltage (VDD33) 3.0 3.3 3.6 V LVCMOS Supply Voltage (VDDIO) 3.0 3.3 3.6 V OR LVCMOS Supply Voltage (VDDIO) 1.71 1.8 1.89 V Operating Free Air Temperature (TA) −40 +25 +105 °C 85 MHz 100 mVP-P PCLK Frequency Supply Noise (1) 6 5 (1) Supply noise testing was done with minimum capacitors on the PCB. A sinusoidal signal is AC coupled to the VDD33 and VDDIOsupplies with amplitude = 100 mVp-p measured at the device VDD33 and VDDIO pins. Bit error rate testing of input to the Ser and output of the Des with 10 meter cable shows no error when the noise frequency on the Ser is less than 50 MHz. The Des on the other hand shows no error when the noise frequency is less than 50 MHz. Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated Product Folder Links: DS90UH925AQ-Q1 DS90UH925AQ-Q1 www.ti.com SNLS481 – JUNE 2014 7.4 Thermal Information THERMAL METRIC (1) WQFN 48 PINS RθJA Junction-to-ambient thermal resistance 35 RθJC(top) Junction-to-case (top) thermal resistance 5.2 RθJB Junction-to-board thermal resistance 5.5 ψJT Junction-to-top characterization parameter 0.1 ψJB Junction-to-board characterization parameter 5.5 RθJC(bot) Junction-to-case (bottom) thermal resistance 1.3 (1) UNIT °C/W For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953. Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated Product Folder Links: DS90UH925AQ-Q1 7 DS90UH925AQ-Q1 SNLS481 – JUNE 2014 www.ti.com 7.5 DC Electrical Characteristics (1) (2) (3) Over recommended operating supply and temperature ranges unless otherwise specified. SYMBOL PARAMETER CONDITIONS PIN/FREQ. MIN PDB TYP MAX UNIT 2.0 VDDIO V GND 0.8 V +10 μA 2.0 VDDIO V 0.65* VDDIO VDDIO V GND 0.8 V GND 0.35* VDDIO V LVCMOS I/O DC SPECIFICATIONS VIH High Level Input Voltage VDDIO = 3.0 to 3.6 V VIL Low Level Input Voltage VDDIO = 3.0 to 3.6 V IIN Input Current VIN = 0 V or VDDIO = 3.0 to 3.6 V VIH High Level Input Voltage −10 VDDIO = 3.0 to 3.6 V VDDIO = 1.71 to 1.89 V VDDIO = 3.0 to 3.6 V VIL Low Level Input Voltage IIN Input Current VDDIO = 1.71 to 1.89 V VIN = 0 V or VDDIO High Level Output Voltage IOH = −4 mA VOH VOL Low Level Output Voltage IOL = +4 mA VDDIO = 3.0 to 3.6 V R[7:0], G[7:0], B[7:0], HS, VS, DE, PCLK, I2S_CLK, I2S_WC, I2S_DA, I2S_DB ±1 −10 ±1 +10 μA VDDIO = 1.71 to 1.89 V −10 ±1 +10 μA VDDIO = 3.0 to 3.6 V 2.4 VDDIO V VDDIO = 1.71 to 1.89 V VDDIO 0.45 VDDIO V GND 0.4 V GND 0.35 V VDDIO = 3.0 to 3.6 V VDDIO = 1.71 to 1.89 V IOS Output Short Circuit Current VOUT = 0 V IOZ TRI-STATE® Output Current VOUT = 0 V or VDDIO, PDB = L, GPIO[3:0], GPO_REG[7:4], REM_INTB −50 −10 mA +10 μA 1250 1340 mVp-p 1 50 mV FPD-LINK III CML DRIVER DC SPECIFICATIONS VODp-p Differential Output Voltage RL = 100 Ω, Figure 1 (DOUT+) – (DOUT-) ΔVOD Output Voltage Unbalance VOS Offset Voltage – Singleended ΔVOS Offset Voltage Unbalance Single-ended IOS Output Short Circuit Current RT Internal Termination Resistor - Single ended 1160 2.50.25*VO RL = 100 Ω, Figure 1 DOUT+, DOUT- (1) (2) (3) 8 V Dp-p (TYP) 1 50 −38 DOUT+/- = 0 V, PDB = L or H 40 52 mV mA 62 Ω The Electrical Characteristics tables list ensured specifications under the listed Recommended Operating Conditions except as otherwise modified or specified by the Electrical Characteristics Conditions and/or Notes. Typical specifications are estimations only and are not ensured. Typical values represent most likely parametric norms at VDD = 3.3 V, Ta = +25ºC, and at the Recommended Operation Conditions at the time of product characterization and are not ensured. Current into device pins is defined as positive. Current out of a device pin is defined as negative. Voltages are referenced to ground except VOD and ΔVOD, which are differential voltages. Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated Product Folder Links: DS90UH925AQ-Q1 DS90UH925AQ-Q1 www.ti.com SNLS481 – JUNE 2014 DC Electrical Characteristics (1) (2) (3) (continued) Over recommended operating supply and temperature ranges unless otherwise specified. SYMBOL PARAMETER CONDITIONS PIN/FREQ. MIN TYP MAX UNIT 148 170 mA 90 180 μA 1 1.6 mA 1.2 2.4 mA 65 150 μA 55 150 μA SUPPLY CURRENT IDD1 IDDIO1 VDD33= 3.6 V Supply Current (includes load current) RL = 100 Ω, f = 85 MHz Checker Board Pattern, Figure 2 Supply Current Remote Auto Power Down Mode 0x01[7] = 1, deserializer is powered down IDDS1 IDDIOS1 IDDS2 IDDIOS2 Supply Current Power Down VDD33 VDDIO = 3.6 V VDDIO = 1.89 V VDDIO VDD33 = 3.6 V VDD33 VDDIO = 3.6 V VDDIO = 1.89 V VDDIO VDD33 = 3.6 V PDB = L, All LVCMOS VDDIO = 3.6 V inputs are floating or tied VDDIO = 1.89 to GND V VDD33 VDDIO 1 2 mA 65 150 μA 50 150 μA Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated Product Folder Links: DS90UH925AQ-Q1 9 DS90UH925AQ-Q1 SNLS481 – JUNE 2014 www.ti.com 7.6 AC Electrical Characteristics (1) (2) (3) Over recommended operating supply and temperature ranges unless otherwise specified. SYMBOL PARAMETER CONDITIONS PIN/FREQ. MIN TYP MAX UNIT GPIO BIT RATE Forward Channel Bit Rate BR Back Channel Bit Rate See (4) (5) See (4) (5) f = 5 – 85 MHz GPIO[3:0] 0.25* f Mbps 75 kbps RECOMMENDED TIMING FOR PCLK tTCP PCLK Period tCIH PCLK Input High Time tCIL PCLK Input Low Time tCLKT PCLK Input Transition Time Figure 3 (4) (5) tIJIT PCLK Input Jitter Tolerance, Bit Error Rate ≤10-10 (1) (2) (3) (4) (5) (6) 10 f / 40 < Jitter Freq < f / 20 (4) PCLK (6) 11.76 T 200 ns 0.4*T 0.5*T 0.6*T ns 0.4*T 0.5*T 0.6*T ns f = 5 MHz 4.0 ns f = 85 MHz 0.5 ns f = 5 – 78 MHz 0.4 0.6 UI The Electrical Characteristics tables list ensured specifications under the listed Recommended Operating Conditions except as otherwise modified or specified by the Electrical Characteristics Conditions and/or Notes. Typical specifications are estimations only and are not ensured. Typical values represent most likely parametric norms at VDD = 3.3 V, Ta = +25ºC, and at the Recommended Operation Conditions at the time of product characterization and are not ensured. Current into device pins is defined as positive. Current out of a device pin is defined as negative. Voltages are referenced to ground except VOD and ΔVOD, which are differential voltages. Specification is ensured by characterization and is not tested in production. Specification is ensured by design and is not tested in production. Jitter Frequency is specified in conjunction with DS90UH926 PLL bandwidth. Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated Product Folder Links: DS90UH925AQ-Q1 DS90UH925AQ-Q1 www.ti.com SNLS481 – JUNE 2014 7.7 Recommended Timing for the Serial Control Bus Over 3.3 V supply and temperature ranges unless otherwise specified. SYMBOL fSCL tLOW PARAMETER SCL Clock Frequency CONDITIONS MIN TYP MAX UNIT Standard Mode 0 100 kHz Fast Mode 0 400 kHz Standard Mode 4.7 us Fast Mode 1.3 us Standard Mode 4.0 us Fast Mode 0.6 us Hold time for a start or a repeated start condition Figure 8 Standard Mode 4.0 us Fast Mode 0.6 us Set Up time for a start or a repeated start condition Figure 8 Standard Mode 4.7 us Fast Mode 0.6 us Data Hold Time Figure 8 Standard Mode 0 3.45 us Fast Mode 0 0.9 us Data Set Up Time Figure 8 Standard Mode 250 ns Fast Mode 100 ns Set Up Time for STOP Condition, Standard Mode Figure 8 Fast Mode 4.0 us 0.6 us Bus Free Time Between STOP and START, Figure 8 Standard Mode 4.7 us tBUF Fast Mode 1.3 us tr SCL & SDA Rise Time, Figure 8 Standard Mode 1000 ns Fast Mode 300 ns SCL & SDA Fall Time, Figure 8 Standard Mode 300 ns Fast mode 300 ns tHIGH tHD;STA tSU:STA tHD;DAT tSU;DAT tSU;STO tf SCL Low Period SCL High Period Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated Product Folder Links: DS90UH925AQ-Q1 11 DS90UH925AQ-Q1 SNLS481 – JUNE 2014 www.ti.com 7.8 DC and AC Serial Control Bus Characteristics Over 3.3 V supply and temperature ranges unless otherwise specified. (1) SYMBOL PARAMETER (2) (3) CONDITIONS MIN TYP MAX UNIT VIH Input High Level SDA and SCL 0.7* VDD33 VDD33 V VIL Input Low Level Voltage SDA and SCL GND 0.3* VDD33 V VHY Input Hysteresis >50 VOL SDA, IOL = 1.25 mA Iin SDA or SCL, Vin = VDD33 or GND tR SDA RiseTime – READ tF SDA Fall Time – READ tSU;DAT Set Up Time – READ tHD;DAT Hold Up Time – READ tSP Input Filter Cin Input Capacitance (1) (2) (3) mV 0 0.36 V -10 +10 µA 430 ns 20 ns Figure 8 560 ns Figure 8 615 ns 50 ns SDA or SCL
DS90UH925ATRHSTQ1 价格&库存

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