NXP Semiconductors
UM11596
PTN3944 linear equalizer application board user manual
2.1 Block diagram
aaa-042292
TX_OUT[0:3]
RX_OUT[0:3]
U1 x4
x4
x4
x4
x4
x4
TX_IN[0:3]
RX_IN[0:3]
TX_OUT[4:7]
U2
U5
RX_OUT[4:7]
x4
x4
RX_IN[4:7]
U6
TX_IN[4:7]
x4
x4
TX_OUT[8:11]
U3
RX_OUT[8:11]
x4
x4
RX_IN[8:11]
U7
TX_IN[8:11]
x4
x4
TX_OUT[12:15]
U4
RX_OUT[12:15]
x4
x4
RX_IN[12:15]
U11
PCA9540
U10
REG1117-3.3
I2C
J5
U8
TX_IN[12:15]
J13
J1
7
U9
TPS62827
5 V
1.8 V
J12
J11
5 V
3.3 V
3.3 V
3.3 V
J1
6
Figure 1. Block diagram
2.2 PCB photographs
Figure 2. PTN3944 PCIe add-in-card front 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
5 / 37