1 Features

• Eight channel linear equalizer supporting PCIe 4.0

up to 16 Gbps

• Protocol agnostic linear redriver supporting many

high speed interface including UPI, DisplayPort,

SAS, SATA, XFI

• Provides four 2x2 Crosspoint mux function

• Provides equalization to handle up to 42 dB of

PCIe 4.0 channels

• CTLE boosts up to 18 dB at 8 GHz

• Ultra-low latency of 90 ps

• Low additive random jitter of 70 fs with PRBS data

• Single 3.3 V supply

• Low active power of 107 mW/channel

• No heat sink required

• Pin-strap, SMBus/I 2 C or EEPROM programming

• Automatic receiver detection for PCIe use cases

• Seamless support for PCIe link training

• Support for x2, x4, x8, x16 PCIe bus width with

one or multiple DS160PR822

• Industrial temperature range of –40°C to 85°C

• 5.5 mm × 10 mm, 64-pin WQFN package

2 Applications

• Rack server

• Microserver & tower server

• High performance computing

• Hardware accelerator

• Network attached storage

• Storage area network (SAN) & host bus adapter

(HBA) card

• Network interface card (NIC)

• Desktop PC/motherboard

3 Description

The DS160PR822 is an eight channel low-power

high-performance linear redriver designed to support

PCIe 4.0 and Ultra Path Interface (UPI) 2.0 up to 16

Gbps. The device is a protocol agnostic linear redriver

that can operate for many differential interfaces.

The DS160PR822 receivers deploy continuous time

linear equalizers (CTLE) to provide a high-frequency

boost. The equalizer can open an input eye that is

completely closed due to inter-symbol interference

(ISI) induced by an interconnect medium, such as

PCB traces and cables. The linear redriver along with

the passive channel as a whole get link trained for

best transmit and receive equalization settings

resulting in best electrical link and lowest possible

latency. Low channel-channel cross-talk, low additive

jitter and excellent return loss allows the device to

become almost a passive element in the link. The

devices has internal linear voltage regulator to provide

clean power supply for high speed datapaths that

provides high immunity to any supply noise on the

board.

The DS160PR822 implements high speed testing

during production for reliable high volume

manufacturing. The device also has low AC and DC

gain variation providing consistant equalization in high

volume platform deployment.