Figure 4-5. Layer 5
Figure 4-6. Bottom Layer
PCB Layouts
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DS320PR412-421EVM User's Guide
SNLU301 – NOVEMBER 2021
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Copyright © 2021 Texas Instruments Incorporated
Страница 1: ...20PR421 are interchangeable with SN75LVPE5421 Figure 1 1 DS320PR412 421EVM Table of Contents 1 Introduction 3 1 1 Features 3 1 2 Applications 3 2 Description 4 2 1 Redriver Mux 5 Level I O Control Inp...
Страница 2: ...ure 4 5 Layer 5 22 Figure 4 6 Bottom Layer 22 List of Tables Table 2 1 Five Level Control Pin Settings 4 Table 2 2 Modes of Operation 4 Table 2 3 Redriver Mux SMBus Address Map 4 Table 2 4 Equalizatio...
Страница 3: ...annel unidirectional linear redrivers operating at rates up to 32Gbps DS320PR412 linear redriver with 1 2 MUX DS320PR421 linear redriver with 2 1 DEMUX Linear equalization for seamless support of link...
Страница 4: ...ssed through standard SMBus protocol The DS320PR412 DS320PR421 SN75LVPE5412 and SN75LVPE5421 features two banks of channels Bank 0 Channels 0 1 and Bank 1 Channels 2 3 each featuring a separate regist...
Страница 5: ...14 L2 L4 15 L3 L0 16 L3 L1 17 L3 L2 18 L3 L3 19 L3 L4 The equalization gain of each channel of each device can also be set by writing to SMBus I2C registers in I2C Mode 2 5 Redriver Mux RX Detect Sta...
Страница 6: ...rol When operating in Pin Mode the GAIN SDA pin can be used to set the overall datapath DC low frequency gain of the DS320PR412 DS320PR421 SN75LVPE5412 and SN75LVPE5421 as shown in Table 2 6 Please re...
Страница 7: ...A B 5 6 Edge Finger to PCIe A J7 PCIe TDI 1 2 Edge Finger to PCIe B 3 4 Edge Finger to PCIe A B 5 6 Edge Finger to PCIe A J8 PCIe TDO 1 2 Edge Finger to PCIe B 3 4 Edge Finger to PCIe A B 5 6 Edge Fi...
Страница 8: ...J30 DS320PR412_0 RX_DET_SCL_0 1 2 L0 3 4 L1 5 6 L2 7 8 L3 N C L4 9 10 SCL J23 DS320PR412_0 GAIN_SDA 1 2 L0 3 4 L1 5 6 L2 7 8 L3 N C L4 9 10 SDA JMP4 DS320PR412_1 EQ0_ADDR_0 1 2 L0 3 4 L1 5 6 L27 8 L3...
Страница 9: ...DS320PR421_0 RX_DET_SCL_0 1 2 L0 3 4 L1 5 6 L27 8 L3 N C L4 9 10 SCL J27 DS320PR421_0 GAIN_SDA 1 2 L0 3 4 L1 5 6 L27 8 L3 N C L4 9 10 SDA JMP14 DS320PR421_1 EQ0_ADDR_0 1 2 L0 3 4 L1 5 6 L27 8 L3 N C...
Страница 10: ...drivers is enabled by leaving RX_DET pin open 2 The redrivers are enabled PWDN pins tied to GND 3 The board is configured for any PCIe bus width 4 DC Gain of all redrivers is set to 0 dB by leaving th...
Страница 11: ...dvark Adapter to P4 Note that the Adapter is not supplied with the DS320PR412 421EVM Install shunt on JMP17 across pins 1 2 for USB2ANY 3 4 for Aardvark 2 Install SigCon Architect Version 3 0 0 16 app...
Страница 12: ...to apply the selected settings and click the Apply to All Channels button Figure 2 1 SigCon Architect DS320PR412 421 High Level Page Description www ti com 12 DS320PR412 421EVM User s Guide SNLU301 N...
Страница 13: ...3 1 through Figure 3 9 show the EVM schematics Figure 3 1 DS320PR412 www ti com Schematics SNLU301 NOVEMBER 2021 Submit Document Feedback DS320PR412 421EVM User s Guide 13 Copyright 2021 Texas Instru...
Страница 14: ...Figure 3 2 DS320PR421 Schematics www ti com 14 DS320PR412 421EVM User s Guide SNLU301 NOVEMBER 2021 Submit Document Feedback Copyright 2021 Texas Instruments Incorporated...
Страница 15: ...3 3 Configuration Headers Figure 3 4 I2C Adapter Selection www ti com Schematics SNLU301 NOVEMBER 2021 Submit Document Feedback DS320PR412 421EVM User s Guide 15 Copyright 2021 Texas Instruments Incor...
Страница 16: ...Figure 3 5 Power Schematics www ti com 16 DS320PR412 421EVM User s Guide SNLU301 NOVEMBER 2021 Submit Document Feedback Copyright 2021 Texas Instruments Incorporated...
Страница 17: ...Figure 3 6 EDGE Finger www ti com Schematics SNLU301 NOVEMBER 2021 Submit Document Feedback DS320PR412 421EVM User s Guide 17 Copyright 2021 Texas Instruments Incorporated...
Страница 18: ...igure 3 7 PCIe Clock Figure 3 8 PCIe x8 Connector A Schematics www ti com 18 DS320PR412 421EVM User s Guide SNLU301 NOVEMBER 2021 Submit Document Feedback Copyright 2021 Texas Instruments Incorporated...
Страница 19: ...Figure 3 9 PCIe x16 Connector B www ti com Schematics SNLU301 NOVEMBER 2021 Submit Document Feedback DS320PR412 421EVM User s Guide 19 Copyright 2021 Texas Instruments Incorporated...
Страница 20: ...gure 4 6 illustrate the EVM PCB layout images Figure 4 1 Top Layer Figure 4 2 Layer 2 PCB Layouts www ti com 20 DS320PR412 421EVM User s Guide SNLU301 NOVEMBER 2021 Submit Document Feedback Copyright...
Страница 21: ...Figure 4 3 Layer 3 Figure 4 4 Layer 4 www ti com PCB Layouts SNLU301 NOVEMBER 2021 Submit Document Feedback DS320PR412 421EVM User s Guide 21 Copyright 2021 Texas Instruments Incorporated...
Страница 22: ...Figure 4 5 Layer 5 Figure 4 6 Bottom Layer PCB Layouts www ti com 22 DS320PR412 421EVM User s Guide SNLU301 NOVEMBER 2021 Submit Document Feedback Copyright 2021 Texas Instruments Incorporated...
Страница 23: ...R60J474KE19D 10 2 C80 C82 22uF Murata GRM188C80G226MEA0D 11 11 C83 C84 C85 C86 C87 C88 C89 C90 C91 C92 C93 1pF Murata Electronics GRM1555C1H1R0CA01D 12 2 D1 D2 LED Green 0805 13 12 JMP1 JMP2 JMP3 JMP4...
Страница 24: ...ctronic Components ERJ 2RKF1053X 35 1 R91 205K Panasonic Electronic Components ERJ 2RKF2053X 36 1 R92 5 76K Panasonic Electronic Components ERJ 2RKF5761X 37 3 R93 R131 R132 10K Panasonic Electronic Co...
Страница 25: ...nts 46 1 U5 TMUX1133PWR Texas Instruments 47 1 U6 TPS548B22RVFT Texas Instruments TPS548B22RVFT 48 1 U7 SN74LVC125A_PW_1 4 Texas Instruments SN74LVC125AQPWRQ1 49 1 U8 LMK00334RTVR Texas Instruments ww...
Страница 26: ...ther 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 tec...
Страница 27: ...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 in...
Страница 28: ...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 s...
Страница 29: ...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 electr...
Страница 30: ...R 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 Furthe...
Страница 31: ...change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reproduction and display of thes...