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NXP Semiconductors UM11596 User Manual

NXP Semiconductors UM11596 User Manual

Linear equalizer application board
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UM11596
PTN3944 linear equalizer application board user manual
Rev. 1 — 14 July 2021
Document information
Information
Content
Keywords
PTN3944, PCIe, linear redriver
Abstract
UM11596 demonstrates application board capability, interfacing an PCIe
device with a host computer on a x16 slot. The application board is intended
for use as an evaluation board, customer demonstration tool, and a reference
design.
User manual

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Summary of Contents for NXP Semiconductors UM11596

  • Page 1 Keywords PTN3944, PCIe, linear redriver Abstract UM11596 demonstrates application board capability, interfacing an PCIe device with a host computer on a x16 slot. The application board is intended for use as an evaluation board, customer demonstration tool, and a reference...
  • Page 2 UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual Revision history Date Description 20210714 Initial release UM11596 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2021. All rights reserved. User manual Rev. 1 — 14 July 2021...
  • Page 3 UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual Important notice NXP provides the enclosed product(s) under the following conditions: This evaluation kit is intended for use of ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY. It is provided as a sample IC pre-soldered to a printed circuit board to make it easier to access inputs, outputs, and supply terminals.

  • Page 4: Introduction

    UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual Introduction The PTN3944 is a high-performance, multi-channel, linear equalizer optimized for PCIe 4.0, UPI, and similar high-speed interfaces. Using multiple components of the PTN3944 supports redriving PCIe signals on x1, x2, x4, x8, or x16 devices installed in a PCIe slot.

  • Page 5: Block Diagram

    UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual 2.1 Block diagram TX_IN[0:3] TX_OUT[0:3] U1 x4 RX_OUT[0:3] RX_IN[0:3] TX_IN[4:7] TX_OUT[4:7] RX_OUT[4:7] RX_IN[4:7] TX_IN[8:11] TX_OUT[8:11] RX_OUT[8:11] RX_IN[8:11] TX_OUT[12:15] TX_IN[12:15] RX_OUT[12:15] RX_IN[12:15] PCA9540 1.8 V TPS62827 3.3 V 3.3 V 3.3 V REG1117-3.3...
  • Page 6 UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual Figure 3. PTN3944 PCIe add-in-card back side UM11596 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2021. All rights reserved. User manual Rev. 1 — 14 July 2021...

  • Page 7: Ptn3944 Pcie Add-In-Card Schematics

    UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual 2.3 PTN3944 PCIe Add-In-Card schematics 2.3.1 Front side redrivers PTN3944 IN0P OUT0P TX_IN0P TX_OUT0P IN0N OUT0N 0.22 µF 0.22 µF TX_IN0N T1_OUT0N 0.22 µF 0.22 µF IN1P OUT1P TX_IN1P T1_OUT1P...
  • Page 8 UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual PTN3944 IN0P OUT0P TX_IN4P TX_OUT4P IN0N OUT0N 0.22 µF 0.22 µF TX_IN4N TX_OUT4N 0.22 µF 0.22 µF IN1P OUT1P TX_IN5P TX_OUT5P IN1N OUT1N 0.22 µF 0.22 µF TX_IN5N TX_OUT5N 0.22 µF 0.22 µF...
  • Page 9 UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual PTN3944 IN0P OUT0P TX_IN8P TX_OUT8P IN0N OUT0N 0.22 µF 0.22 µF TX_IN8N TX_OUT8N 0.22 µF 0.22 µF IN1P OUT1P TX_IN9P TX_OUT9P IN1N OUT1N 0.22 µF 0.22 µF TX_IN9N TX_OUT9N 0.22 µF 0.22 µF...
  • Page 10 UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual PTN3944 IN0P OUT0P TX_IN12P TX_OUT12P IN0N OUT0N 0.22 µF 0.22 µF TX_IN12N TX_OUT12N 0.22 µF 0.22 µF IN1P OUT1P TX_IN13P TX_OUT13P IN1N OUT1N 0.22 µF 0.22 µF TX_IN13N TX_OUT13N 0.22 µF 0.22 µF...
  • Page 11 UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual VDD1V8 PTNVCC1 25 MΩ 0.1 µF 0.1 µF 0.1 µF 0.1 µF 0.1 µF aaa-042299 Figure 8. Schematic - front side There are four PTN3944 on the front side of the AIC. Each PTN3944 component is responsible for 4 lanes of transmitters from the motherboard side to PCIe device side.

  • Page 12: Back Side Redrivers

    UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual 2.3.2 Back side redrivers PTN3944 IN0P OUT0P RX_IN0P RX_OUT0P IN0N OUT0N 0.22 µF 0.22 µF RX_IN0N RX_OUT0N 0.22 µF 0.22 µF IN1P OUT1P RX_IN1P RX_OUT1P IN1N OUT1N 0.22 µF 0.22 µF...
  • Page 13 UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual PTN3944 C106 C114 IN0P OUT0P RX_IN4P RX_OUT4P C107 C115 IN0N OUT0N 0.22 µF 0.22 µF RX_IN4N RX_OUT4N C108 C116 0.22 µF 0.22 µF IN1P OUT1P RX_IN5P RX_OUT5P C109 C117 IN1N OUT1N 0.22 µF...
  • Page 14 UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual PTN3944 C127 C135 IN0P OUT0P RX_IN8P RX_OUT8P C128 C136 IN0N OUT0N 0.22 µF 0.22 µF RX_IN8N RX_OUT8N C129 C137 0.22 µF 0.22 µF IN1P OUT1P RX_IN9P RX_OUT9P C130 C138 IN1N OUT1N 0.22 µF...
  • Page 15 UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual PTN3944 C148 C156 IN0P OUT0P RX_IN12P RX_OUT12P C149 C157 IN0N OUT0N 0.22 µF 0.22 µF RX_IN12N RX_OUT12N C150 C158 0.22 µF 0.22 µF IN1P OUT1P RX_IN13P RX_OUT13P C151 C159 IN1N OUT1N 0.22 µF...

  • Page 16: Front Side Redriver Control Switches

    UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual VDD1V8 PTNVCC5 25 MΩ C101 C102 C103 C104 C105 0.1 µF 0.1 µF 0.1 µF 0.1 µF 0.1 µF aaa-042304 Figure 13. Schematic - back side There are four PTN3944 on the back side of the AIC. Each PTN3944 component is responsible for 4 lanes of receivers from PCIe device side to the motherboard side.
  • Page 17 UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual VDD1V8 KAT1108E T3_TEST1 10 kΩ CTL1_T3 10 kΩ CTL2_T3 10 kΩ CTL3_T3 10 kΩ T4_TEST1 10 kΩ CTL1_T4 10 kΩ CTL2_T4 10 kΩ CTL3_T4 10 kΩ aaa-042306 Figure 15. Front side K2 control switch schematic  ...

  • Page 18: Back Side Redriver Control Switches

    UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual Table 3. Front side redriver K1, K2, and K5 control switch positions and descriptions ...continued Switch Switch Position Description U3 (Top/Front) Test Pin, Connect To GND U3 (Top/Front) LCTL1, Peaking Gain Setting...
  • Page 19 UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual VDD1V8 KAT1108E B3_TEST1 10 kΩ CTL1_B3 10 kΩ CTL2_B3 10 kΩ CTL3_B3 10 kΩ B4_TEST1 10 kΩ CTL1_B4 10 kΩ CTL2_B4 10 kΩ CTL3_B4 10 kΩ aaa-042309 Figure 18. Back side K4 control switch schematic  ...
  • Page 20 UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual Table 4. Back side redrivers K3, K4, and K6 control switch positions and descriptions ...continued Switch Switch Position Description U7 (Bottom/Back) Test Pin, Connect To GND U7 (Bottom/Back) LCTL1, Peaking Gain Setting...

  • Page 21: Pcie X16 Edge Finger

    UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual 2.3.5 PCIe x16 edge finger 12V_PCIE 3P3V_PCIE 3P3V_AUX_PCIE PRSNT1# PRSNT1# +12v_3 +12v_4 +12v_1 +12v_2 +12v_5 GND1 GND35 JTAG2 SMBCLK {9} JTAG2 SMBCLK {9} JTAG3 SMBDAT 0 Ω 0 Ω {9} JTAG3...

  • Page 22: Pcie X16 Straddle Mount Connector

    UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual 2.3.6 PCIe x16 straddle mount connector 12V_PCIE 3P3V_PCIE 3P3V_AUX_PCIE PRSNT1# PRSNT1_N +12v_B1 +12v_A2 +12v_B2 +12v_A3 +12v_B3 GND_A4 GND_B4 SMCLK {9} JTAG2 SMBCLK {9} SMBDAT {9} JTAG3 SMBDAT {9} GND_B7 {9} JTAG4 +3.3v_B8...

  • Page 23: I2C Controls

    UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual 2.3.7 I C controls 3P3V_CONN 3P3V_CONN 3P3V_CONN C189 0.1 µF 2.2 kΩ 2.2 kΩ 2.2 kΩ 2.2 kΩ (DNS) (DNS) 2.2 kΩ 2.2 kΩ (DNS) (DNS) SCL1 SDA1 SCL2 SDA2...

  • Page 24: Lpcusbsio Module

    UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual VDD_REG VDD1V8 0.47 µH C183 C185 C190 C184 10 µF 10 µF 10 µF 100 kΩ 4.7 µF 25 V 25 V 25 V C182 6.3 V 200 kΩ 120 pF TPS62827DMQR 100 kΩ...

  • Page 25: Pcb Photographs

    UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual 3.1 PCB photographs Figure 27. USB-to-I C tool (NXP LPCUSBSIO) front side Figure 28. USB-to-I C tool (NXP LPCUSBSIO) back side 3.2 Connection The PTN3944 PCIe AIC and LPCUSBSIO module are connected by a 10-pin ribbon cable.

  • Page 26: Firmware Update

    UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual Figure 29. LPCUSBSIO base board with attached cable 3.3 Firmware update From time to time, NXP provides the latest firmware update for the EVM to fix issues found in the code. To perform the firmware upgrade, follow these steps: 1.
  • Page 27 UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual 7. On the PC, a disk drive named “CRP DISABLD” appears under “computer in the left window as shown.” Figure 31. CRP DISABLD drive added after releasing SW302 switch 8. Right-click the prior version of “firmware.bin” in the “CRP DISABLD” driver window.

  • Page 28: Gui Introduction

    UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual 11. You should see the new binary file appear in the “CRP DISABLD” drive. The firmware update is completed. Now you can remove the Micro USB cable from your computer and insert into computer again to emulate power-on reset condition.

  • Page 29: Gui Fields

    UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual • Only the first eight lines/entries are loaded, entries after the eighth line discarded. • When populating entries in the script file, users should ensure that the entries exist as files in the current directory.

  • Page 30: Script Files

    UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual Table 6. GUI debug interface controls ...continued Description Control Device Address The Device Address field shows the evaluation board type and/or a list of product I C addresses found in the current setup.

  • Page 31: Register Information

    UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual Table 8. Message controls ...continued Control Description Mute Messages Checked: Most I C read/write messages are not displayed in the message window. I C read/write errors are always displayed, and cannot be turned off.
  • Page 32 UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual Table 10. Examples of script file content ...continued File Description Equivalent Jumper Setting Figure 37. Example EQ/OSL settings for PCIe Gen 4 TX compliance test %Top LCTRL[2:1]=[1,0] {EQ=11.5dB@8GHz} %Top LCTRL[3]=1 {OSL=950mVppd} %Top FG[2:1]=[0,0] {+0.7dB on All Channels} DUT[0x23-20][0x07] = 0x07 0x03 0x07 0x03 0x07 0x03 0x07 0x03;...
  • Page 33 UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual Table 10. Examples of script file content ...continued File Description Example Jumper Setting Figure 38. Example EQ/OSL settings for PCIe Gen 4 RX compliance test %Top LCTRL[2:1]=[1,0] {EQ=11.5dB@8GHz} %Top LCTRL[3]=1 {OSL=950mVppd} %Top FG[2:1]=[0,0] {+0.7dB on All Channels} DUT[0x23-20][0x07] = 0x07 0x03 0x07 0x03 0x07 0x03 0x07 0x03;...

  • Page 34: Other Controls

    UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual 4.8.2 Other Controls Figure 39. Device address and Sync PCIe channel settings 4.8.2.1 Device Address pulldown menu When a PTN3944 PCIe Add-In-Card (AIC) is detected, the device address pull-down displays all detected devices (with their respective I C device addresses).

  • Page 35: Legal Information

    NXP Semiconductors. In no event shall NXP product remains with customer. In no event shall NXP Semiconductors, its...
  • Page 36 UM11596 NXP Semiconductors PTN3944 linear equalizer application board user manual Tables Tab. 1. Front side redrivers U1 – U4 I2C addresses Tab. 5. GUI zip file contents ........28 and corresponding TX lanes ......11 Tab. 6. GUI debug interface controls ......29 Tab.

  • Page 37: Table Of Contents

    'Legal information'. © NXP B.V. 2021. All rights reserved. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com Date of release: 14 July 2021 Document identifier: UM11596...

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