Summary of Contents for NXP Semiconductors UM11596
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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...
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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.
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.
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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.
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.
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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 ...
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...
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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 ...
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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...
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.
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.
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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.
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.
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.
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.
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.
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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;...
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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;...
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).
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