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ZYNQ FPGA Development Board AX7350B User Manual
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Amazon Store: https://www.amazon.com/alinx
can purchase SFP optical modules (1.25G, 2.5G, 10G optical modules on the
market) and insert them into these two optical interfaces for optical data
communication. The 2-way fiber interface is connected to the 2-way RX/TX of
the ZNKQ's BANK111 GTX transceiver. Both the TX signal and the RX signal
are connected to the ZYNQ and the optical module through a DC blocking
capacitor in a differential signal mode, and each TX transmission and RX
reception data rate is up to 10 Gb/s. The reference clock for the BANK111 GTX
transceiver is provided by 156.25Mhz Differential crystal oscillator.
Figure 11-1 detailed the FPGA and SFP schematic diagram
ZYNQ
SFP1_RX_N
SFP1_RX_P
SFP1
U1
SFP1_TX_N
SFP1_TX_P
BANK111
GTX
SFP2_RX_N
SFP2_RX_P
SFP2
SFP2_TX_N
SFP2_TX_P
SFP1_LOSS
SFP1_TX_DIS
BANK
12
BANK111
GTX
BANK
12
LEVEL
SHIFT
SFP1_LOSS
SFP1_TX_DIS_LS
SFP2_LOSS
SFP2_TX_DIS
LEVEL
SHIFT
SFP2_LOSS
SFP2_TX_DIS_LS
Figure 11-1: The schematic diagram of FPGA and Fiber Interface
The first fiber interface ZYNQ pin assignment is as follows:
Signal Name
ZYNQ Pin
Description
SFP1_TX_P
AF4
SFP Module Data Transmission Positive
SFP1_TX_N
AF3
SFP Module Data Transmission Negative
SFP1_RX_P
AE6
SFP Module Data Receive Positive
SFP1_RX_P
AE5
SFP Module Data Receive Negative