SNLS686
February 2021
DS160PR421
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
DC Electrical Characteristics
6.6
High Speed Electrical Characteristics
6.7
SMBUS/I2C Timing Charateristics
6.8
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Linear Equalization
7.3.2
Flat Gain
7.3.3
Receiver Detect State Machine
7.4
Device Functional Modes
7.4.1
Active PCIe Mode
7.4.2
Active Buffer Mode
7.4.3
Standby Mode
7.5
Programming
7.5.1
Control and Configuration Interface
7.5.1.1
Pin Mode
7.5.1.1.1
Four-Level Control Inputs
7.5.1.2
SMBUS/I2C Register Control Interface
8
Application and Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
PCIe x8 Lane Switching
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.3
Pin-to-pin Passive versus Redriver Option
8.2.1.4
Application Curves
8.2.2
DisplayPort Application
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
11
Layout Example
12
Device and Documentation Support
12.1
Receiving Notification of Documentation Updates
12.2
Support Resources
12.3
Trademarks
12.4
Electrostatic Discharge Caution
12.5
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RUA|42
MPQF210D
Thermal pad, mechanical data (Package|Pins)
RUA|42
QFND142D
Orderable Information
snls686_oa
snls686_pm
1
Features
Quad channel PCIe 4.0 linear redriver or repeater with integrated
2:1 multiplexer
Protocol agnostic linear redriver compatible to UPI, DisplayPort, SAS, SATA, XFI
Single 3.3 V supply rail
Low 120 mW /channel active power
No heat sink required
Provides equalization up to 17 dB at 8 GHz to handle up to 42 dB of PCIe 4.0 channels
Excellent differential return loss of -13 dB input and -15 dB output
Low additive random jitter of 70 fs with PRBS data
Low latency of 80 ps
Automatic receiver detection and seamless support for PCIe link training
Device configuration by pin control or SMBus / I
2
C.
Mux
selection through pin
Available companion
demultiplexer product
DS160PR412
-40°C to 85°C industrial temperature range
3.5 mm x 9 mm 42 Pin 0.5 mm pitch WQFN package