TUSB213-Q1

USB

TRANSCEIVER

High Speed

Compensation

USB

CONNECTOR

Low and Full

Speed Bypass

Status flags

OPTIONAL

PLD

ESD

PROTECTION

D2P

D2M

D1P

D1M

CD

ENA_HS

Copyright © 2017, Texas Instruments Incorporated

8

TUSB213-Q1

SLLSF06 – SEPTEMBER 2017

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Product Folder Links: TUSB213-Q1

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Copyright © 2017, Texas Instruments Incorporated

7 Detailed Description

7.1 Overview

The TUSB213-Q1 is a USB High-Speed (HS) signal conditioner, designed to compensate for ISI signal loss in a

transmission channel. TUSB213-Q1 has a patent-pending design which is agnostic to USB Low Speed (LS) and

Full Speed (FS) signals and does not alter their signal characteristics, while HS signals are compensated. In

addition, the design is compatible with USB On-The-Go (OTG) and Battery Charging (BC) specifications.

Programmable signal AC boost through an external resistor on EQ pin permits fine tuning device performance to

optimize signals helping to pass USB HS electrical compliance tests at the connector. Additional DC Boost

configurable by three level input DC_BOOST pin helps overcoming the cable losses.

7.2 Functional Block Diagram

7.3 Feature Description

7.3.1 EQ

The EQ pin of the TUSB213-Q1 is used to configure the AC boost of the device. The four levels of AC boost are

set through different values of an external pulldown resistor at this pin.

7.3.2 DC BOOST

The DC_BOOST pin of the TUSB213-Q1 is a tri-level pin, used to set the DC gain of the device according to

Table 1.

Table 1. DC Boost Settings

DC BOOST SETTING VIA PIN STRAP

DC_BOOST

DC Boost Setting (mV)

40

60

80

7.4 Device Functional Modes

7.4.1 Low Speed (LS) Mode

TUSB213-Q1 automatically detects a LS connection and does not enable signal compensation. CD pin is

asserted high.

7.4.2 Full Speed (FS) Mode

TUSB213-Q1 automatically detects a FS connection and does not enable signal compensation. CD pin is

asserted high.