Datasheet > DS320PR822

DS320PR822

更新时间： 2024-11-08 11:12:27

品牌	Logo	应用领域
德州仪器 - TI		PC 驱动复用器驱动器
页数	文件大小	规格书
38页	1821K
描述
具有四个 2x2 交叉点多路复用器的 PCIe® 5.0 32Gbps 8 通道线性转接驱动器

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中文翻译

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DS320PR822 数据手册

DS320PR822

SNLS714 – SEPTEMBER 2022

DS320PR822 Linear Redriver for PCIe 5.0, CXL 1.1 With Four 2x2 Crosspoint Mux

1 Features

3 Description

•

Linear redriver supporting PCIe 5.0, CXL 2.0, UPI

2.0 up to 32 Gbps

Supports most ac coupled interfaces including DP,

SAS, SATA, XFI

Provides four 2x2 Crosspoint mux function

CTLE boosts up to 22 dB at 16 GHz

Ultra-low latency of 100 ps

Low additive random jitter of 75 fs for PRBS data

Excellent return loss of −10 dB at 16 GHz

Single 3.3 V supply

Internal voltage regulator provides immunity to

supply noise

Low active power of 160 mW per channel

No heat sink required

Pin-strap, SMBus or EEPROM programming

Automatic receiver detection for PCIe use cases

Protocol agnostic linear redriver allows seamless

support for PCIe link training

Support for x2, x4, x8, x16, x24 bus width with one

or multiple DS320PR822

The DS320PR822 is a low-power high-performance

linear repeater or redriver designed to support PCIe

5.0, CXL 2.0, UPI 2.0, and other interfaces up to

32 Gbps. The DS320PR822 provides four 2x2 cross-

point mux functionality.

•

The DS320PR822 receivers deploy continuous time

linear equalizers (CTLE) to provide a programmable

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. The CTLE receiver

is followed by a linear output driver. The linear data-

paths of DS320PR822 preserve transmit preset signal

characteristics. The linear redriver becomes part of

the passive channel that as a whole get link trained

for best transmit and receive equalization settings.

This transparency in the link training protocol results

in best electrical link and lowest possible latency.

Low channel-channel cross-talk, low additive jitter

and excellent return loss makes the device almost

a passive element in the link, but with its useful

equalization. The data-path of the device uses an

internally regulated power rail that provides high

immunity to any supply noise on the board.

•

Temperature range of –40 °C to 85 °C

5.5 mm × 10 mm, 64 pin WQFN package

2 Applications

•

Rack server, microserver, and tower server

High performance computing

Hardware accelerator

Network attached storage

Storage area network (SAN) and host bus adapter

(HBA) card

The device also has low AC and DC gain variation

providing consistent equalization in high volume

platform deployment.

Package Information⁽¹⁾

PART NUMBER

PACKAGE

BODY SIZE (NOM)

•

Network interface card (NIC)

Desktop PC or motherboard

DS320PR822

WQFN (NJX, 64) 5.50 mm × 10.00 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

x16

PCIe Card-1 (x16)

Connector-1

CPU-1

DS320PR822

Quad 2x2 x-point

x16

DS320PR822

Quad 2x2 x-point

PCIe Card-2 (x16)

Connector-2

CPU-2

x16

Typical Application

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...38

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与DS320PR822相关器件

型号	品牌	获取价格	描述	数据表
DS320PR822NJXR	TI	获取价格	具有四个 2x2 交叉点多路复用器的 PCIe® 5.0 32Gbps 8 通道线性转接驱
DS320PR822NJXT	TI	获取价格	具有四个 2x2 交叉点多路复用器的 PCIe® 5.0 32Gbps 8 通道线性转接驱
DS320W	RECTRON	获取价格	Reverse Voltage Vr : 200 V;Forward Current Io : 3.0 A;Max Surge Current : 80 A;Forward Vol
DS320WV	RECTRON	获取价格	Reverse Voltage Vr : 200 V;Forward Current Io : 3.0 A;Max Surge Current : 80 A;Forward Vol
DS322	SPANSION	获取价格	32 Megabit (4 M x 8-Bit/2 M x 16-Bit) CMOS 1.8 Volt-only, Simultaneous Operation Flash Mem
DS323	SPANSION	获取价格	32 Megabit (4 M x 8-Bit/2 M x 16-Bit) CMOS 1.8 Volt-only, Simultaneous Operation Flash Mem
DS-323	TE	获取价格	Flatpack Three-Way Power Divider 25 - 1000 MHz
DS3231	MAXIM	获取价格	Extremely Accurate I2C-Integrated
DS3231	DALLAS	获取价格	Extremely Accurate I2C-Integrated RTC/TXO/Crystal
DS3231	ADI	获取价格	超高精度、I2C接口、集成RTC/TCXO/晶体

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