Chapter 1
SNLU166 – August 2014
Overview
The DS125BR820EVM – SMA evaluation kit provides a complete high bandwidth platform to evaluate the
40GbE, PCIe, and SAS/SATA signal conditioning features of the Texas Instruments DS125BR820
repeater/redriver. The DS125BR820EVM can be used for standard compliance testing, performance
evaluation,
and
initial
system
prototyping.
The
SMA
edge
launch
connectors
used
for
the
DS125BR820EVM will interface to multiple system connector types via commercially available breakout
cables, adaptors, and boards (not included). This flexible connectivity enables integrated system level
testing between TI repeaters and 3rd party ASIC/FPGA host boards. For a functional description of the
DS125BR820, refer to the DS125BR820 datasheet.
1.1
Features
•
8-Channel unidirectional repeater operating at rates up to 12.5 Gbps
•
Linear equalization to support link training protocols
•
EQ up to 10 dB at 6 GHz
•
Variable voltage range up to 1200 mVpp
•
Linear output driver
•
Programmable by pin selection (pin mode), EEPROM, or SMBus interface
•
Single supply operation: V
IN
= 3.3 V±10% or V
DD
= 2.5 V±5%
•
–40°C to +85°C operation
•
4 kV HBM ESD rating / 1 kV CDM ESD rating
•
High speed signal flow–thru pin-out package: 54-pin QFN (10 mm x 5.5 mm, 0.5 mm pitch)
1.2
Applications
•
FR-4 Backplane traces and high speed cable in serial Interfaces up to 12.5 Gbps
•
PCIe, SAS, SATA, 40G-KR4, 40G-CR4, 40G-SR4, 40G-LR4
1.3
Ordering Information
Table 1-1. Ordering Information
EVM ID
DEVICE ID
DEVICE PACKAGE
DS125BR820EVM
DS125BR820NJY
WQFN-54
4
Overview
SNLU166 – August 2014
Copyright © 2014, Texas Instruments Incorporated