SLLSFL2A
April 2022 – May 2024
TUSB1142
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.5
Power Supply Characteristics
5.6
Control I/O DC Electrical Characteristics
5.7
USB Electrical Characteristics
5.8
Timing Requirements
5.9
Switching Characteristics
5.10
Typical Characteristics
6
Parameter Measurement Information
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
4-Level Inputs
7.3.2
USB Receiver Linear Equalization
7.3.2.1
Linear EQ Configuration
7.3.2.2
Full Adaptive Equalization
7.3.2.3
Fast Adaptive Equalization
7.3.3
USB Transmitter
7.3.3.1
Linearity VOD
7.3.3.2
Limited VOD
7.3.3.3
Transmit Equalization (Limited Redriver Mode Only)
7.3.4
USB 3.2 2:1 MUX Description
7.3.5
USB Polarity Inversion
7.3.6
Receiver Detect Control
7.4
Device Functional Modes
7.4.1
MODE Pin
7.4.2
Rx EQ Configuration in Pin-Strap Mode
7.4.3
USB 3.2 Power States
7.4.4
Disabling U1 and U2
7.5
Programming
7.5.1
Pseudocode Examples
7.5.1.1
Fixed EQ with Linear Redriver Mode
7.5.1.2
Fixed EQ with Limited Redriver Mode
7.5.1.3
Fast AEQ with Linear Redriver Mode
7.5.1.4
Fast AEQ with Limited Redriver Mode
7.5.1.5
Full AEQ with Linear Redriver Mode
7.5.1.6
Full AEQ with Limited Redriver Mode
7.5.2
TUSB1142 I2C Address Options
7.5.3
TUSB1142 I2C Target Behavior
7.6
Register Map
7.6.1
TUSB1142 Registers
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
USB SSTX Receiver Configuration
8.2.2.2
USB CRX1/2 Receiver Configuration
8.2.2.2.1
Fixed Equalization
8.2.2.2.2
Full Adaptive Equalization
8.2.2.2.3
Fast Adaptive Equalization
8.2.2.3
ESD Protection
8.2.3
Application Curves
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
9
Device and Documentation Support
9.1
Receiving Notification of Documentation Updates
9.2
Support Resources
9.3
Trademarks
9.4
Electrostatic Discharge Caution
9.5
Glossary
10
Revision History
11
Mechanical, Packaging, and Orderable Information
8.2.2.2
USB CRX1/2 Receiver Configuration