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.