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TS3USB30ERSWR

TS3USB30ERSWR

  • 厂商:

    BURR-BROWN(德州仪器)

  • 封装:

    UFQFN10

  • 描述:

    TS3USB30E ESD保护,高速USB 2.0(480 Mbps)1:2多路复用器/解复用器开关,单启用10UQFN

  • 数据手册
  • 价格&库存
TS3USB30ERSWR 数据手册
Product Folder Sample & Buy Support & Community Tools & Software Technical Documents TS3USB30E SCDS255F – DECEMBER 2008 – REVISED AUGUST 2015 TS3USB30E ESD-Protected, High-Speed USB 2.0 (480-Mbps) 1:2 Multiplexer/Demultiplexer Switch With Single Enable 1 Features 3 Description • • • • The TS3USB30E is a high-bandwidth 1:2 switch specially designed for the switching of high-speed USB 2.0 signals in handset and consumer applications, such as cell phones, digital cameras, and notebooks with hubs or controllers with limited USB I/Os. The wide bandwidth (900 MHz) of this switch allows signals to pass with minimum edge and phase distortion. The device multiplexes differential outputs from a USB host device to one of two corresponding outputs, or from two different hosts to one corresponding output. The switch is bidirectional and offers little or no attenuation of the high-speed signals at the outputs. It is designed for low bit-to-bit skew and high channel-to-channel noise isolation, and is compatible with various standards, such as high-speed USB 2.0 (480 Mbps). 1 • • • • • • • • • VCC Operation at 3 V to 4.3 V D+/D– Pins Tolerate up to 5.25 V 1.8-V Compatible Control-Pin Inputs IOFF Supports Partial Power-Down-Mode Operation RON = 10 Ω Maximum ΔRON = 0.35 Ω Typical Cio(ON) = 7.5 pF Typical Low Power Consumption (1 μA Maximum) –3-dB Bandwidth = 900 MHz Typical Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II (1) ESD Performance Tested Per JESD 22 – 8000-V Human-Body Model (A114-B, Class II) – 1000-V Charged-Device Model (C101) ESD Performance I/O Port to GND (2) – 15000-V Human-Body Model Packaged in 10-pin UQFN (1.4 mm × 1.8 mm) The TS3USB30E integrates ESD protection cells on all pins, is available in a tiny UQFN package (1.8 mm × 1.4 mm) or a VSSOP package, and is characterized over the free-air temperature range of –40°C to 85°C. Device Information(1) PART NUMBER 2 Applications • • • • • (1) (2) TS3USB30E Routes Signals for USB 1.0, 1.1, and 2.0 Multi-Purpose Signal Switching Portable Electronics Industrial Consumer Products PACKAGE BODY SIZE (NOM) VSSOP (10) 3.00 mm × 3.00 mm UQFN (10) 1.80 mm × 1.40 mm (1) For all available packages, see the orderable addendum at the end of the datasheet. Except OE and S inputs High-voltage HBM is performed in addition to the standard HBM testing (A114-B, Class II) and applies to I/O ports tested with respect to GND only. Functional Block Diagram D1+ D+ D2+ D1– D– D2– S OE Control 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. TS3USB30E SCDS255F – DECEMBER 2008 – REVISED AUGUST 2015 www.ti.com Table of Contents 1 2 3 4 5 6 7 8 Features .................................................................. Applications ........................................................... Description ............................................................. Revision History..................................................... Pin Configuration and Functions ......................... Specifications......................................................... 1 1 1 2 3 4 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 4 4 4 5 5 6 6 7 Absolute Maximum Ratings ..................................... ESD Ratings.............................................................. Recommended Operating Conditions ...................... Thermal Information .................................................. Electrical Characteristics .......................................... Dynamic Electrical Characteristics............................ Switching Characteristics .......................................... Typical Characteristics .............................................. Parameter Measurement Information .................. 8 Detailed Description ............................................ 12 8.1 Overview ................................................................. 12 8.2 Functional Block Diagram ....................................... 12 8.3 Feature Description................................................. 12 8.4 Device Functional Modes........................................ 12 9 Application and Implementation ........................ 13 9.1 Application Information............................................ 13 9.2 Typical Application ................................................. 13 10 Power Supply Recommendations ..................... 15 11 Layout................................................................... 15 11.1 Layout Guidelines ................................................. 15 11.2 Layout Example .................................................... 16 12 Device and Documentation Support ................. 17 12.1 12.2 12.3 12.4 12.5 Documentation Support ........................................ Community Resources.......................................... Trademarks ........................................................... Electrostatic Discharge Caution ............................ Glossary ................................................................ 17 17 17 17 17 13 Mechanical, Packaging, and Orderable Information ........................................................... 17 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision E (August 2012) to Revision F Page • Added Pin Configuration and Functions section, ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section .............................. 1 • Changed package type in Description from DGS to VSSOP ................................................................................................ 1 2 Submit Documentation Feedback Copyright © 2008–2015, Texas Instruments Incorporated Product Folder Links: TS3USB30E TS3USB30E www.ti.com SCDS255F – DECEMBER 2008 – REVISED AUGUST 2015 5 Pin Configuration and Functions 10 GND VCC 9 D+ OE 8 5 D– VCC 9 4 S 10 3 2 D2+ D1+ 1 D2+ S 8 1 2 7 6 D2– 6 OE D1+ D2– 7 RSW PACKAGE 10-PIN UQFN BOTTOM VIEW D1– D1– RSW PACKAGE 10-PIN UQFN TOP VIEW DGS PACKAGE 10-PIN VSSOP TOP VIEW 3 D+ 4 GND 5 D– Pin Functions PIN NAME I/O DESCRIPTION UQFN VSSOP D1+ 1 2 I/O D1– 7 8 I/O D+ 3 4 I/O D- 5 6 I/O D2+ 2 3 I/O D2– 6 7 I/O OE 8 9 I Bus-switch enable S 10 1 I Select input GND 4 5 — Ground VCC 9 10 — Voltage supply USB signal path port 1 Common USB signal path USB signal path port 2 Submit Documentation Feedback Copyright © 2008–2015, Texas Instruments Incorporated Product Folder Links: TS3USB30E 3 TS3USB30E SCDS255F – DECEMBER 2008 – REVISED AUGUST 2015 www.ti.com 6 Specifications 6.1 Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted) (see VCC (1) (2) ) Supply voltage VIN Control input voltage (3) (4) MIN MAX UNIT –0.5 7 V V –0.5 7 D+, D– when VCC > 0 –0.5 VCC + 0.3 D+, D– when VCC = 0 –0.5 5.25 VI/O Signal path I/O voltage (3) IIK Control input clamp current VIN < 0 –50 mA II/OK I/O port clamp current VI/O < 0 –50 mA II/O ON-state switch current (5) ±64 mA ±100 mA 150 °C Continuous current through VCC or GND Tstg (1) (2) (3) (4) (5) Storage temperature –65 V 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. All voltages are with respect to ground, unless otherwise specified. The input and output voltage ratings may be exceeded if the input and output clamp-current ratings are observed. VI and VO are used to denote specific conditions for VI/O. II and IO are used to denote specific conditions for II/O. 6.2 ESD Ratings VALUE V(ESD) Electrostatic discharge Human body model (HBM), per ANSI/ESDA/JEDEC JS-001 (1) All pins 8000 I/O port to GND 15000 Charged-device model (CDM), per JEDEC specification JESD22-C101 (2) (1) (2) UNIT V 1000 JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process. 6.3 Recommended Operating Conditions See VCC (1) . VIH High-level control input voltage VIL Low-level control input voltage VI/O Data input/output voltage TA Operating free-air temperature (1) 4 MIN MAX 3 4.3 VCC = 3 V to 3.6 V 1.3 VCC VCC = 4.3 V 1.7 VCC VCC = 3 V to 3.6 V 0 0.5 VCC = 4.3 V 0 0.7 0 VCC V –40 85 °C Supply voltage UNIT V V V All unused control inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to Implications of Slow or Floating CMOS Inputs (SCBA004). Submit Documentation Feedback Copyright © 2008–2015, Texas Instruments Incorporated Product Folder Links: TS3USB30E TS3USB30E www.ti.com SCDS255F – DECEMBER 2008 – REVISED AUGUST 2015 6.4 Thermal Information TS3USB30E THERMAL METRIC (1) DGS (VSSOP) RSW (UQFN) 10 PINS 10 PINS UNIT 203.1 114.5 °C/W RθJA Junction-to-ambient thermal resistance RθJC(top) Junction-to-case (top) thermal resistance 88.7 64.7 °C/W RθJB Junction-to-board thermal resistance 123.0 21.0 °C/W ψJT Junction-to-top characterization parameter 21.2 1.9 °C/W ψJB Junction-to-board characterization parameter 121.6 21.0 °C/W (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report (SPRA953). 6.5 Electrical Characteristics over operating free-air temperature range (unless otherwise noted) (1) PARAMETER TEST CONDITIONS VIK Control input clamp voltage VCC = 3 V, II = –18 mA IIN Control inputs IOZ MIN TYP (2) MAX UNIT –1.2 V VCC = 4.3 V, 0 V, VIN = 0 to 4.3 V ±1 μA D+ and D– OFF-state leakage current (3) VCC = 4.3 V, VO = 0 to 3.6 V, VI = 0, Switch OFF ±1 μA IOFF Powered off leakage current VCC = 0 V, VO = 0 to 4.3 V, VI = 0, VIN = VCC or GND ±2 μA ICC Supply current VCC = 4.3 V, II/O = 0, Switch ON or OFF 1 μA Control inputs VCC = 4.3 V, VIN = 2.6 V 10 μA Cin Control inputs digital input capacitance VCC = 0 V, VIN = VCC or GND 1 pF Cio(OFF) OFF-state input capacitance VCC = 3.3 V, VI/O = 3.3 V or 0, Switch OFF 2 pF Cio(ON) ON-state input capacitance VCC = 3.3 V, VI/O = 3.3 V or 0, Switch ON 7.5 pF ΔICC (4) RON ON-state resistance ΔRON ron(flat) (1) (2) (3) (4) (5) (5) 10 Ω VCC = 3 V, VI = 0.4, IO = –8 mA 6 ON-state resistance match between channels VCC = 3 V, VI = 0.4, IO = –8 mA 0.35 Ω ON-state resistance flatness VCC = 3 V, VI = 0 V or 1 V, IO = –8 mA 2 Ω VIN and IIN refer to control inputs. VI, VO, II, and IO refer to data pins. All typical values are at VCC = 3.3 V (unless otherwise noted), TA = 25°C. For I/O ports, the parameter IOZ includes the input leakage current. This is the increase in supply current for each input that is at the specified TTL voltage level, rather than VCC or GND. Measured by the voltage drop between the A and B terminals at the indicated current through the switch. ON-state resistance is determined by the lower of the voltages of the two (A or B) terminals. Submit Documentation Feedback Copyright © 2008–2015, Texas Instruments Incorporated Product Folder Links: TS3USB30E 5 TS3USB30E SCDS255F – DECEMBER 2008 – REVISED AUGUST 2015 www.ti.com 6.6 Dynamic Electrical Characteristics over operating range, TA = –40°C to 85°C, VCC = 3.3 V ± 10%, GND = 0 V PARAMETER TYP (1) TEST CONDITIONS UNIT XTALK Crosstalk RL = 50 Ω, f = 240 MHz, See Figure 6 –54 OISO OFF isolation RL = 50 Ω, f = 240 MHz, See Figure 5 –40 dB BW Bandwidth (–3 dB) RL = 50 Ω, CL = 5 pF, See Figure 7 900 MHz (1) dB For Max or Min conditions, use the appropriate value specified under Electrical Characteristics for the applicable device type. 6.7 Switching Characteristics over operating range, TA = –40°C to 85°C, VCC = 3.3 V ± 10%, GND = 0 V PARAMETER TEST CONDITIONS RL = 50 Ω, CL = 5 pF, See Figure 8 TYP (1) MAX UNIT tpd Propagation delay (2) tON Line enable time, SEL to D, nD RL = 50 Ω, CL = 5 pF, See Figure 4 30 ns tOFF Line disable time, SEL to D, nD RL = 50 Ω, CL = 5 pF, See Figure 4 25 ns tON Line enable time, OE to D, nD RL = 50 Ω, CL = 5 pF, See Figure 4 30 ns tOFF Line disable time, OE to D, nD RL = 50 Ω, CL = 5 pF, See Figure 4 25 ns tSK(O) Output skew between center port to any other port (2) RL = 50 Ω, CL = 5 pF, See Figure 9 50 ps tSK(P) Skew between opposite transitions of the same output (tPHL – tPLH) (2) RL = 50 Ω, CL = 5 pF, See Figure 9 20 ps tJ Total jitter (2) RL = 50 Ω, CL = 5 pF, tR = tF = 500 ps at 480 Mbps (PRBS = 215 – 1) 20 ps (1) (2) (3) 6 (3) MIN 0.25 ns For Max or Min conditions, use the appropriate value specified under Electrical Characteristics for the applicable device type. Specified by design The bus switch contributes no propagational delay other than the RC delay of the on resistance of the switch and the load capacitance. The time constant for the switch alone is of the order of 0.25 ns for 10-pF load. Since this time constant is much smaller than the rise/fall times of typical driving signals, it adds very little propagational delay to the system. Propagational delay of the bus switch, when used in a system, is determined by the driving circuit on the driving side of the switch and its interactions with the load on the driven side. Submit Documentation Feedback Copyright © 2008–2015, Texas Instruments Incorporated Product Folder Links: TS3USB30E TS3USB30E www.ti.com SCDS255F – DECEMBER 2008 – REVISED AUGUST 2015 6.8 Typical Characteristics 0 0 –10 –2 –20 Attenuation (dB) Gain (dB) –4 –6 –8 –30 –40 –50 –60 –10 –70 –12 –14 100.0E+3 –80 –90 1.0E+6 10.0E+6 100.0E+6 1.0E+9 10.0E+9 100.0E+3 1.0E+6 Frequency (Hz) 10.0E+6 100.0E+6 1.0E+9 10.0E+9 Frequency (Hz) Figure 1. Gain vs Frequency Figure 2. OFF Isolation 0 Attenuation (dB) –20 –40 –60 –80 –100 –120 100.0E+3 1.0E+6 10.0E+6 100.0E+6 Frequency (Hz) 1.0E+9 10.0E+9 Figure 3. Crosstalk Submit Documentation Feedback Copyright © 2008–2015, Texas Instruments Incorporated Product Folder Links: TS3USB30E 7 TS3USB30E SCDS255F – DECEMBER 2008 – REVISED AUGUST 2015 www.ti.com 7 Parameter Measurement Information VCC 1D or 2D VOUT1 VIN TEST RL CL VIN tON 50 Ω 5 pF VCC tOFF 50 Ω 5 pF VCC D 1D or 2D VOUT2 CL(2) RL S OE VSEL(1) 1.8 V Logic RL Input (VSEL or V OE) CL(2) GND 50% 50% 0 tON VOE(1) Switch Output (VOUT1 or V OUT2) tOFF 90% 90% VOH VOL (1) All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50 Ω, tr < 5 ns, tf < 5 ns. (2) CL includes probe and jig capacitance. Figure 4. Turn-On (tON) and Turn-Off Time (tOFF) VCC Network Analyzer Channel OFF: 1D to D 50 Ω VOUT1 1D VSEL = VCC VIN D Source Signal 50 Ω 2D Network Analyzer Setup Source Power = 0 dBm (632-mV P-P at 50- Ω load) VSEL S 50 Ω + GND DC Bias = 350 mV Figure 5. OFF Isolation (OISO) VCC Network Analyzer Channel ON: 1D to D 50 Ω VOUT1 1D Channel OFF: 2D to D VIN Source Signal VSEL = VCC VOUT2 2D 50 Ω 50 Ω Network Analyzer Setup VSEL S + GND Source Power = 0 dBm (632-mV P-P at 50- Ω load) DC Bias = 350 mV Figure 6. Crosstalk (XTALK) 8 Submit Documentation Feedback Copyright © 2008–2015, Texas Instruments Incorporated Product Folder Links: TS3USB30E TS3USB30E www.ti.com SCDS255F – DECEMBER 2008 – REVISED AUGUST 2015 Parameter Measurement Information (continued) VCC Network Analyzer 50 Ω VOUT1 1D Channel ON: 1D to D D Source Signal VIN VCTRL = GND 2D Network Analyzer Setup 50 Ω VSEL Source Power = 0 dBm (632-mV P-P at 50-Ω load) S GND GND DC Bias = 350 mV Figure 7. Bandwidth (BW) 400 mV Figure 8. Propagation Delay Submit Documentation Feedback Copyright © 2008–2015, Texas Instruments Incorporated Product Folder Links: TS3USB30E 9 TS3USB30E SCDS255F – DECEMBER 2008 – REVISED AUGUST 2015 www.ti.com Parameter Measurement Information (continued) VOH VOL Pulse Skew tSK(P) VOH VOL VOH VOL Output Skew tSK(P) Figure 9. Skew Test 10 Submit Documentation Feedback Copyright © 2008–2015, Texas Instruments Incorporated Product Folder Links: TS3USB30E TS3USB30E www.ti.com SCDS255F – DECEMBER 2008 – REVISED AUGUST 2015 Parameter Measurement Information (continued) VCC VOUT1 1D D + VIN Channel ON VOUT2 2D r on VSEL IIN S VIN VOUT2 or VOUT1 IIN VSEL = VIH or VIL + GND Figure 10. ON-State Resistance (RON) VCC VOUT1 1D D + VOUT2 2D VSEL VIN + S OFF-State Leakage Current Channel OFF VSEL = VIH or VIL + GND Figure 11. OFF-State Leakage Current VCC VOUT1 1D Capacitance Meter VBIAS VBIAS = VCC or GND VOUT2 2D VSEL = VCC or GND VIN D Capacitance is measured at 1D, 2D, D, and S inputs during ON and OFF conditions. VSEL S GND Figure 12. Capacitance Submit Documentation Feedback Copyright © 2008–2015, Texas Instruments Incorporated Product Folder Links: TS3USB30E 11 TS3USB30E SCDS255F – DECEMBER 2008 – REVISED AUGUST 2015 www.ti.com 8 Detailed Description 8.1 Overview The TS3USB30E is a high-bandwidth switch specially designed for the switching and isolating of high-speed USB 2.0 signals in systems with limited USB I/Os. The wide bandwidth (900 MHz) of this switch allows signals to pass with minimum edge and phase distortion. The device multiplexes differential outputs from a USB host device to one of two corresponding outputs or from two different hosts to one corresponding output. The switch is bidirectional and offers little or no attenuation of the high-speed signals at the outputs. It is designed for low bitto-bit skew and high channel-to-channel noise isolation, and is compatible with various standards, such as highspeed USB 2.0 (480 Mbps). 8.2 Functional Block Diagram D1+ D+ D2+ D1– D– D2– S OE Control 8.3 Feature Description The TS3USB30E has a bus-switch enable pin OE that can place the signal paths in high impedance. This allows the user to isolate the bus when it is not in use and consume less current. 8.4 Device Functional Modes The device functional modes are shown in Table 1. Table 1. Truth Table 12 S OE FUNCTION X H Disconnect L L D = D1 H L D = D2 Submit Documentation Feedback Copyright © 2008–2015, Texas Instruments Incorporated Product Folder Links: TS3USB30E TS3USB30E www.ti.com SCDS255F – DECEMBER 2008 – REVISED AUGUST 2015 9 Application and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 9.1 Application Information There are many USB applications in which the USB hubs or controllers have a limited number of USB I/Os. The TS3USB30E solution can effectively expand the limited USB I/Os by switching between multiple USB buses in order to interface them to a single USB hub or controller. TS3USB221E can also be used to connect a single controller to two USB connectors or controllers. 9.2 Typical Application VCC TS3USB30E 1D+ USB2.0 Controller D+ 1D– Set Top Box (STB) CPU or DSP Processor USB Connector D– 2D+ DVR or Mass Storage Controller 2D– Control S OE Figure 13. Application Diagram 9.2.1 Design Requirements Design requirements of the USB 1.0, 1.1, and 2.0 standards should be followed. TI recommends that the digital control pins S and OE be pulled up to VCC or down to GND to avoid undesired switch positions that could result from the floating pin. 9.2.2 Detailed Design Procedure The TS3USB30E can be properly operated without any external components. However, it is recommended that unused pins be connected to ground through a 50-Ω resistor to prevent signal reflections back into the device. Submit Documentation Feedback Copyright © 2008–2015, Texas Instruments Incorporated Product Folder Links: TS3USB30E 13 TS3USB30E SCDS255F – DECEMBER 2008 – REVISED AUGUST 2015 www.ti.com Typical Application (continued) 0.5 0.5 0.4 0.4 0.3 0.3 Differential Signal (V) Differential Signal (V) 9.2.3 Application Curves 0.2 0.1 0.0 –0.1 –0.2 0.2 0.1 0.0 –0.1 –0.2 –0.3 –0.3 –0.4 –0.4 –0.5 –0.5 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0.0 2.0 0.2 0.4 0.6 –9 0.8 1.0 1.2 1.4 1.6 1.8 2.0 –9 Time (x 10 ) (s) Time (x 10 ) (s) Figure 14. Eye Pattern: 480-Mbps USB Signal With No Switch (Through Path) Figure 15. Eye Pattern: 480-Mbps USB Signal With Switch NC Path 0.5 0.4 Differential Signal (V) 0.3 0.2 0.1 0.0 –0.1 –0.2 –0.3 –0.4 –0.5 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 –9 Time (x 10 ) (s) Figure 16. Eye Pattern: 480-Mbps USB Signal With Switch NO Path 14 Submit Documentation Feedback Copyright © 2008–2015, Texas Instruments Incorporated Product Folder Links: TS3USB30E TS3USB30E www.ti.com SCDS255F – DECEMBER 2008 – REVISED AUGUST 2015 10 Power Supply Recommendations Power to the device is supplied through the VCC pin and should follow the USB 1.0, 1.1, and 2.0 standards. TI recommends placing a bypass capacitor as close as possible to the supply pin VCC to help smooth out lower frequency noise to provide better load regulation across the frequency spectrum. 11 Layout 11.1 Layout Guidelines Place supply bypass capacitors as close to VCC pin as possible and avoid placing the bypass caps near the D+ and D– traces. The high-speed D+ and D– traces should always be of equal length and must be no more than 4 inches; otherwise, the eye diagram performance may be degraded. A high-speed USB connection is made through a shielded, twisted pair cable with a differential characteristic impedance. In layout, the impedance of D+ and D– traces should match the cable characteristic differential impedance for optimal performance. Route the high-speed USB signals using a minimum of vias and corners which will reduce signal reflections and impedance changes. When a via must be used, increase the clearance size around it to minimize its capacitance. Each via introduces discontinuities in the transmission line of the signal and increases the chance of picking up interference from the other layers of the board. Be careful when designing test points on twisted pair lines; through-hole pins are not recommended. When it becomes necessary to turn 90°, use two 45° turns or an arc instead of making a single 90° turn. This reduces reflections on the signal traces by minimizing impedance discontinuities. Do not route USB traces under or near crystals, oscillators, clock signal generators, switching regulators, mounting holes, magnetic devices, or IC’s that use or duplicate clock signals. Avoid stubs on the high-speed USB signals because they cause signal reflections. If a stub is unavoidable, then the stub should be less than 200 mm. Route all high-speed USB signal traces over continuous planes (VCC or GND), with no interruptions. Avoid crossing over anti-etch, commonly found with plane splits. Due to high frequencies associated with the USB, a printed circuit board with at least four layers is recommended: two signal layers separated by a ground layer and a power layer. The majority of signal traces should run on a single layer, preferably Signal 1. Immediately next to this layer should be the GND plane, which is solid with no cuts. Avoid running signal traces across a split in the ground or power plane. When running across split planes is unavoidable, sufficient decoupling must be used. Minimizing the number of signal vias reduces EMI by reducing inductance at high frequencies. For more information on layout guidelines, see High Speed Layout Guidelines (SCAA082) and USB 2.0 Board Design and Layout Guidelines (SPRAAR7). Submit Documentation Feedback Copyright © 2008–2015, Texas Instruments Incorporated Product Folder Links: TS3USB30E 15 TS3USB30E SCDS255F – DECEMBER 2008 – REVISED AUGUST 2015 www.ti.com 11.2 Layout Example To Device 2 VCC To Device 1 = VIA to GND Plane 0603 Cap OE To System D2- D1- To System D- VCC GND S D+ To System D2+ D1+ To System To Device 2 To Device 1 Figure 17. Layout Recommendation 16 Submit Documentation Feedback Copyright © 2008–2015, Texas Instruments Incorporated Product Folder Links: TS3USB30E TS3USB30E www.ti.com SCDS255F – DECEMBER 2008 – REVISED AUGUST 2015 12 Device and Documentation Support 12.1 Documentation Support 12.1.1 Related Documentation For related documentation, see the following: • Implications of Slow or Floating CMOS Inputs, SCBA004 • High Speed Layout Guidelines, SCAA082 • USB 2.0 Board Design and Layout Guidelines, SPRAAR7 12.2 Community Resources The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use. TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help solve problems with fellow engineers. Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and contact information for technical support. 12.3 Trademarks E2E is a trademark of Texas Instruments. All other trademarks are the property of their respective owners. 12.4 Electrostatic Discharge Caution These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. 12.5 Glossary SLYZ022 — TI Glossary. This glossary lists and explains terms, acronyms, and definitions. 13 Mechanical, Packaging, and Orderable Information The following pages include mechanical, packaging, and orderable information. This information is the most current data available for the designated devices. This data is subject to change without notice and revision of this document. For browser-based versions of this data sheet, refer to the left-hand navigation. Submit Documentation Feedback Copyright © 2008–2015, Texas Instruments Incorporated Product Folder Links: TS3USB30E 17 PACKAGE OPTION ADDENDUM www.ti.com 10-Dec-2020 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) (4/5) (6) TS3USB30EDGSR ACTIVE VSSOP DGS 10 2500 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 (L6Q, L6R) TS3USB30ERSWR ACTIVE UQFN RSW 10 3000 RoHS & Green NIPDAU Level-1-260C-UNLIM -40 to 85 (LY7, LYO, LYV) (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of