Texas Instruments TS3USB221 User's Manual
Contents
1. 3 3V LDO USB 5V E o 3 3V Output Output Enable Select Enable Figure 1 TS3USB221 A E EVM Block Diagram 2 1 List of Hardware Items for Operation The following items are required for EVM evaluation The TSSUSB221 A E EVM USB cables with connector type depending on the surrounding system The following items are optional for EVM evaluation USB type A or type B connectors to change connectors J1 through J5 for optimal system interface configuration BM compatible PC with USB 2 0 ports for quick start evaluation SCDUO001A July 2009 Revised October 2009 TS3USB221 A E High Speed USB 2 0 480 Mbps 1 2 Multiplexer Demultiplexer 3 Submit Documentation Feedback Switch Evaluation Module Copyright 2009 Texas Instruments Incorporated I TEXAS INSTRUMENTS Introduction www ti com 2 2 Quick Start mees USB Cable J2 Through Path Through path TERR USB Device qon EA a D e Y a TS3USB221 A E EVM J4 n S Ka Output USB Device a 1 2 H TS3USB221 A E feasansed J5 Switch P ath 3 3V LDO USB Device eeeeee ed 3 J8 OJ j7 O A J6 o o 3 3V Output Output Enable Select Enable Figure 2 Quick Start Evaluation Connect the PC to the USB connector J3 through a USB cable Make sure the 3 3 V LDO output is enabled by opening J8 without a jumper Make sure the TS3USB221 A E IC is enabled by shunting J7 with a jumper Co2. com EVM Configuration and Description Figure 8 Internal Power Plane SCDUO001A July 2009 Revised October 2009 TS3USB221 A E High Speed USB 2 0 480 Mbps 1 2 Multiplexer Demultiplexer 11 Switch Evaluation Module Copyright 2009 Texas Instruments Incorporated I TEXAS INSTRUMENTS EVM Configuration and Description www ti com Figure 9 Bottom Metal Low Speed Single Ended 12 TS3USB221 A E High Speed USB 2 0 480 Mbps 1 2 Multiplexer Demultiplexer SCDUO001A July 2009 Revised October 2009 Switch Evaluation Module Copyright 2009 Texas Instruments Incorporated I TEXAS INSTRUMENTS www ti com EVM Configuration and Description SU a au i AL 4 Figure 10 Bottom Silkscreen Assembly SCDUO001A July 2009 Revised October 2009 TS3USB221 A E High Speed USB 2 0 480 Mbps 1 2 Multiplexer Demultiplexer 13 Submit Documentation Feedback Switch Evaluation Module Copyright 2009 Texas Instruments Incorporated I TEXAS INSTRUMENTS Related Documentation www ti com 3 6 Bill of Materials Table 4 Bill of Materials Count RefDes Value Description Size Part Number Manufacturer 2 J1 J3 USB Connector Type A AU Y1005 Assmann Electronics Inc Molex Waldom 3 J2 J4 J5 USB Connector Type B 67068 9000 Electronics 3 J6 J7 J8 d Header 2x1pin 100mil spacing POM PECSGSAAN STEE 2 C1 C4 1 0 UF Capacitor Ceramic 1 0uF X7R 1096 805 Std Std 1 C2 10 nF Capacitor Cerami
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4. IJ TEXAS User s Guide INSTRUMENTS SCDU001A July 2009 Revised October 2009 TS3USB221 A E High Speed USB 2 0 480 Mbps 1 2 Multiplexer Demultiplexer Switch Evaluation Module Contents 1 Preface ausgsiee Sege tases ege nid de ENEE EEN KEES dicate NE E EE dg ees 2 2 Julie ele Le EE 3 3 EVM Configuration and DesctiptiOR sss Seege EES EEN 5 4 Related DOCUMENTATION sicidiscicicieiiniciaa arcaisiarsie cteistaccteieaieiaw stata a s a s xa a SE EEEN aa E aa EEE Eai a 14 List of Figures 1 TS3USB221 A E EVM Block Diagrami e utro ENKER Sege EN nt SEENEN EEN EN a ENEE SEENEN ee te aae NES ENEE 3 2 Quick Start Evaluatio ausgeet e Ne Eau eege AEN ANEREN ANEN A 3 Jumpers Je J7 and JB Configuration sieves uro nmi per rr ku nr na Ra ER EXE ERR RrRIEREAESR RE EM EENS 5 4 EVM EE e e ri 5 Top Silkscr een AssemMBly sso 9 6 Top Metal High Speed Differential A 10 7 Internal Ground Plane un eege dese de ANE EEN Ee EEN EEN EE PN EP NEEN E 11 8 internal Power Pales inciso eege EEN SE ee ee EEN 12 9 Bottom Metal Low Speed Gingole Endedh Auen 13 10 Bottom Silkscreen ASSembly rs seque se nic Gerereiceie ap cereus ute Er E e euer ERE TREE tuu Ee se pee dux nU QE 13 List of Tables 1 EVM Jumper Description 5 2 EVM Connector DeschptiO E 5 3 Board Stack DI EE 6 4 Bill eg EE EE 14 SCDU001A July 2009 Revised October 2009 TS3USB221 A E High Speed USB 2 0 480 Mbps 1 2 Multi
5. Q CH E ac s ag ec SS D N o D ZS d C is 2 JP g a S E S Figure 4 EVM Schematic SCDUO001A July 2009 Revised October 2009 TS3USB221 A E High Speed USB 2 0 480 Mbps 1 2 Multiplexer Demultiplexer 7 Submit Documentation Feedback Switch Evaluation Module Copyright 2009 Texas Instruments Incorporated I TEXAS INSTRUMENTS EVM Configuration and Description www ti com 3 5 PCB Layout Texas Instruments TSSUSB221 A E EVM Figure 5 Top Silkscreen Assembly 8 TSSUSB221 A E High Speed USB 2 0 480 Mbps 1 2 Multiplexer Demultiplexer SCDUO001A July 2009 Revised October 2009 Switch Evaluation Module Submit Documentation Feedback Copyright 2009 Texas Instruments Incorporated I TEXAS INSTRUMENTS www ti com EVM Configuration and Description Figure 6 Top Metal High Speed Differential SCDUO001A July 2009 Revised October 2009 TS3USB221 A E High Speed USB 2 0 480 Mbps 1 2 Multiplexer Demultiplexer 9 Switch Evaluation Module Copyright 2009 Texas Instruments Incorporated I TEXAS INSTRUMENTS EVM Configuration and Description www ti com Figure 7 Internal Ground Plane 10 TSSUSB221 A E High Speed USB 2 0 480 Mbps 1 2 Multiplexer Demultiplexer SCDUO001A July 2009 Revised October 2009 Switch Evaluation Module Copyright 2009 Texas Instruments Incorporated I TEXAS INSTRUMENTS www ti
6. c 10nF X7R 10 805 Std Std 1 C3 2 2 uF Capacitor Ceramic 2 2uF X7R 10 805 Std Std 2 R1 R2 10 KQ Resistor Chip 10kQ 1 8W 5 805 Std Std 1 R3 100 kQ Resistor Chip 100kQ 1 8W 5 805 Std Std TS3USB221 A TS3USB221RSER 1 U1 E IC High Speed 1 2 USB Switch RSE TS3USB221xRSER Tl 1 U2 LP2985 33 IC 150mA LDO regulator SOT23 5 LP2985 33DBV TI Related Documentation TS3USB221 High Speed USB 2 0 480Mbps 1 2 Multiplexer Demultiplexer Switch with Single Enable data sheet SCDS220F TS3USB221A ESD Protected High Speed USB 2 0 480Mbps 1 2 Multiplexer Demultiplexer Switch with Single Enable data sheet SCDS277 TS3USB221E High Speed USB 2 0 480Mbps 1 2 Multiplexer Demultiplexer Switch with Single Enable and IEC Level 3 ESD Protection data sheet SCDS263 USB 2 0 Board Design and Layout Guidelines application report SPRAAR7 High Speed USB Platform Design Guidelines Intel 2000 http www intel com technology usb download usb2dg_R1_0 pdf USB 2 0 Specification Intel 2000 http www usb org developers docs 14 TSSUSB221 A E High Speed USB 2 0 480 Mbps 1 2 Multiplexer Demultiplexer SCDUO001A July 2009 Revised October 2009 Switch Evaluation Module Submit Documentation Feedback Copyright 2009 Texas Instruments Incorporated IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries Tl reserve the right to make corrections modifications enhancements improvemen
7. gned to provide reasonable protection against radio frequency interference Operation of this equipment in other environments may cause interference with radio communications in which case the user at his her own expense will be required to take whatever measures may be required to correct this interference 2 TSSUSB221 A E High Speed USB 2 0 480 Mbps 1 2 Multiplexer Demultiplexer SCDUO001A July 2009 Revised October 2009 Switch Evaluation Module Submit Documentation Feedback Copyright 2009 Texas Instruments Incorporated I TEXAS INSTRUMENTS www ti com Introduction 2 Introduction The TS3USB221 A E EVM is an evaluation module for the Texas Instruments TI 1 2 multiplexer demultiplexer high bandwidth USB switches It is specially designed for high speed USB 2 0 signals supports bidirectional signaling and offers high bandwidth 1 1 GHz When interfacing other USB devices with this EVM the switch allows signals to pass with minimum edge and phase distortion as well as little or no signal attenuation This evaluation module is designed to demonstrate the small printed circuit board PCB areas that can be achieved when designing with the TS3USB221 A E USB switches It is powered from the 5 V rail of the USB input Additionally the TS3USB221 A E provides an output enable input and an output select input for flexible configuration of the USB See Figure 1 for the EVM block diagram Through path UB TS3USB221 A E EVM Output J3 1 Gg
8. h Speed USB 2 0 480 Mbps 1 2 Multiplexer Demultiplexer 5 Submit Documentation Feedback Switch Evaluation Module Copyright 2009 Texas Instruments Incorporated I TEXAS INSTRUMENTS EVM Configuration and Description www ti com 3 8 Board Stack Up Table 3 shows the board stack up Table 3 Board Stack Up Subclass Type Thickness Dielectric Loss Shield Width Impedance Coupling Spacing Diff Z Name yp mils Constant Tangent mils Q Type mils Q 1 SURFACE 2 TOP CONDUCTOR 2 4 1 0 7 5 47 72 EDGE 7 5 85 004 3 DIELECTRIC 4 4 1 0 035 4 GND PLANE 1 2 1 0 YES 5 DIELECTRIC 48 4 1 0 035 6 VCC PLANE 1 2 1 0 YES 7 DIELECTRIC 4 4 1 0 035 7 5 47 72 EDGE 7 5 85 004 8 BOTTOM CONDUCTOR 24 1 0 9 SURFACE 6 TSSUSB221 A E High Speed USB 2 0 480 Mbps 1 2 Multiplexer Demultiplexer SCDUO001A July 2009 Revised October 2009 Switch Evaluation Module Submit Documentation Feedback Copyright 2009 Texas Instruments Incorporated I TEXAS INSTRUMENTS www ti com EVM Configuration and Description 3 4 Schematics KE ad HA S Sz z pier 2 x vrg e a gad A t e S i as g o 952 2 3 D aw gt E N 2 4 S gt N e v nE g 3 o oc m u m Ss m Ex ao fggt T932F lt oo lt lozt o
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10. nnect two USB downstream devices for example mouse keyboard USB memory stick etc to J4 and J5 on the EVM To select USB downstream device 1 connected to J4 make sure J6 is shunted with a jumper To select USB downstream device 2 connected to J5 make sure J6 is open without a jumper 6 Connector J1 and J2 are connected together without a USB switch This through path can serve as a reference to compare with the TS3USB221 A E path Zb Ns e 4 TSSUSB221 A E High Speed USB 2 0 480 Mbps 1 2 Multiplexer Demultiplexer SCDUO001A July 2009 Revised October 2009 Switch Evaluation Module Submit Documentation Feedback Copyright 2009 Texas Instruments Incorporated l TEXAS INSTRUMENTS www ti com EVM Configuration and Description 3 EVM Configuration and Description 3 1 EVM Description To conform to the USB 2 0 specification the differential traces D and D lines on the board are impedance matched to 90 O differential The trace length of the through path and the trace length through the TS3USB221 A E switch are also matched for comparison purpose The PCB is a simple four layer top side populated board see the schematic and PCB layout in Section 3 4 and Section 3 5 The major features of the hardware design are detailed in the following sections 3 2 Jumper Configuration J6 to J8 The EVM has jumper J6 through J8 see Figure 3 to provide configuration to the TS3USB221 A E and the 3 3 V LDO J6 allows switch output channel selec
11. plexer Demultiplexer 1 Submit Documentation Feedback Switch Evaluation Module Copyright 2009 Texas Instruments Incorporated I TEXAS INSTRUMENTS Preface www ti com 1 Preface 1 1 About This Manual This user s guide describes the TS3USB221 A E Evaluation Module EVM This guide contains the EVM schematics bill of materials assembly drawings and top and bottom board layouts 1 2 How to Use This Manual This document contains the following chapters Chapter 1 Preface e Chapter 2 Introduction and Quick Start Chapter 2 EVM Configuration and Description Chapter 3 Related Documents 1 2 1 Information about Cautions and Warnings CAUTION This EVM contains components that can potentially be damaged by electrostatic discharge Always transport and store the EVM in its supplied ESD bag when not in use Handle using an antistatic wristband Operate on an antistatic work surface For more information on proper handling see the Electrostatic Discharge ESD application note SSYA008 The information in a caution or a warning is provided for your protection Please read each caution and warning carefully 1 2 2 FCC Warning This equipment is intended for use in a laboratory test environment only It generates uses and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to subpart J of part 15 of FCC rules which are desi
12. r a warranty or endorsement thereof Use of such information 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 Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties conditions limitations and notices Reproduction of this information with alteration is an unfair and deceptive business practice TI is not responsible or liable for such altered documentation Information of third parties may be subject to additional restrictions Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice TI is not responsible or liable for any such statements TI products are not authorized for use in safety critical applications such as life support where a failure of the TI product would reasonably be expected to cause severe personal injury or death unless officers of the parties have executed an agreement specifically governing such use Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications and acknowledge and agree that they are solely responsible
13. t J7 provides switch enable control and J8 provides 3 3 V LDO enable control Table 1 lists all of the jumpers in the EVM and their respective functionality all default settings are in bold Vcc J6 or J7 USB_5V TS3USB221 A E ES 10 KQ NAR BV DO 4 6 C gt Output Select or 1 gt Ouput Enable Ouput Enable 21O 20 Figure 3 Jumpers J6 J7 and J8 Configuration Table 1 EVM Jumper Description Jumper Functionality Configuration Shunt J6 to select output 1 J6 TS3USB221 A E Select Open J6 to select output 2 Shunt J7 to enable the switch d TS3USB221 A E Enable Open J7 to disable the switch Shunt J8 to disable the LDO ng Soy Enable Open J8 to enable the LDO The EVM provides USB connectors J1 through J5 to interface with other USB devices Depending on the application need the connectors can be de soldered and changed to either type A or type B connector See Table 2 for the default connectors on the EVM Table 2 EVM Connector Description Connector Functionality Configuration Default as type B connector e USB Connector Can be replaced with type A connector Default as type A connector Ge USB Connector Can be replaced with type B connector Default as type B connector J3 USB Connector Can be replaced with type A connector Default as type B connector M USB Connector Can be replaced with type A connector Default as type B connector J5 USB Connector Can be replaced with type A connector SCDUO01A July 2009 Revised October 2009 TS3USB221 A E Hig
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