Texas Instruments TUSB217RGYRQ1

Overview

TUSB217RGYRQ1 from Texas Instruments is an AEC-Q100 Grade 2 automotive-qualified USB 2.0 high-speed signal conditioner that compensates both AC and DC channel loss via patented edge boost and DC boost functions, supports up to 5 m cable length, operates from 2.3 V to 6.5 V supply, and delivers 480 Mbps HS signaling compliance with <100 ps rise/fall time - deployed in infotainment head units to restore near-end eye mask integrity.

For engineers reviewing the TUSB217RGYRQ1 datasheet, TUSB217RGYRQ1 pinout, TUSB217RGYRQ1 application, or TUSB217RGYRQ1 equivalent, key selection considerations include its tri-level RX_SEN configuration for ISI jitter compensation, four selectable BOOST levels via external resistor, host/device-agnostic operation, I²C-configurable registers (0x2C), and daisy-chain capability for high-loss backplane or active-cable designs.

Technical Context

The TUSB217RGYRQ1 implements a dual-path signal conditioning architecture: edge boost sharpens transition edges without altering packet timing, while DC boost restores static voltage levels to counter resistive loss - both functions are direction-agnostic and fully compatible with USB On-The-Go. Its pre-equalization function dynamically adjusts receiver sensitivity across three levels (low/medium/high) via RX_SEN pin configuration to mitigate inter-symbol interference in long-cable or high-attenuation channels.

Functional modes include automatic LS/FS bypass (no compensation), HS active mode (full boost + sensitivity tuning), HS electrical compliance test mode (CD low, ENA_HS high), and shutdown mode (RSTN low, passive pass-through). All modes retain USB 2.0 protocol transparency - no latency addition, no packet modification, and full BC 1.2 and OTG 2.0 compatibility.

Key Specifications

Pinout & Package

VQFN-14 (RGY) package, 3.50 mm × 3.50 mm body size, 0.5 mm pitch, thermally enhanced exposed pad (TPAD) - optimized for compact automotive PCB layouts with minimal board area and efficient heat dissipation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar USB 2.0 signal conditioning applications.

Compared with TUSB217RGYRQ1, TUSB213RGET offers lower BOM cost in 5 V-only applications but forfeits automotive qualification and adaptive RX tuning; USB2514B-AEZG adds hub logic and flexibility at the expense of AEC-Q100 compliance and deterministic low-latency signal restoration.

Availability

TUSB217RGYRQ1 is available at Aetrix Electronics and suitable for automotive infotainment, active cable extender, and industrial backplane applications requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant signal integrity solutions.

Supply support for TUSB217RGYRQ1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies - with deep expertise in automotive-grade signal conditioning and USB interface solutions.

The TUSB217RGYRQ1 belongs to TI's automotive-qualified USB redriver product line, designed specifically to solve high-speed signal degradation in electrically lossy automotive wiring harnesses and compact infotainment PCBs.

FAQ

What is the primary function of the TUSB217RGYRQ1 in a USB 2.0 system?

The TUSB217RGYRQ1 acts as a transparent, low-latency USB 2.0 high-speed signal conditioner that restores signal integrity by compensating for both AC loss (capacitive) and DC loss (resistive) in transmission channels. It does not alter packet timing or protocol behavior - the TUSB217RGYRQ1 is deployed to ensure compliance with USB-IF near-end eye mask requirements, especially in automotive harnesses exceeding 3 m or PCB traces with high insertion loss.

How does the TUSB217RGYRQ1 handle different USB speeds (LS, FS, HS)?

The TUSB217RGYRQ1 automatically detects USB speed mode: it bypasses low-speed (LS) and full-speed (FS) signals without applying any conditioning, preserving their native waveform integrity; only high-speed (HS) signals trigger the edge boost and DC boost functions. In HS mode, the TUSB217RGYRQ1 also asserts ENA_HS high and supports USB On-The-Go and Battery Charging 1.2 protocols transparently.

Can the TUSB217RGYRQ1 be used in daisy-chain configuration, and what is the maximum number of devices?

Yes, the TUSB217RGYRQ1 supports daisy-chaining to extend reach in high-loss applications - up to four TUSB217RGYRQ1 devices can be cascaded in series while maintaining signal fidelity and USB 2.0 compliance. Each stage applies independent boost and RX sensitivity tuning, enabling end-to-end compensation across >10 m total path length in active cables or backplanes.

What are the key differences between the BOOST and RX_SEN pins on the TUSB217RGYRQ1?

The BOOST pin configures four discrete levels of combined edge and DC boost strength via external pull-down resistors (0 Ω to 7.5 kΩ); it is sampled once at power-up. The RX_SEN pin is a tri-level input (high/mid/low) that sets receiver sensitivity to compensate for ISI jitter - high sensitivity recovers weak signals in long cables, while low sensitivity prevents noise amplification in short, low-loss paths. Both pins enable hardware-based tuning without I²C.

Is the TUSB217RGYRQ1 pin-compatible with other TI USB redrivers, and which ones?

Yes, the TUSB217RGYRQ1 is pin-compatible with the TUSB213RGET in the same VQFN-14 (RGY) package - sharing identical pin assignments for D1P/D1M/D2P/D2M, VCC, GND, RSTN, SCL/CD, and SDA. However, TUSB217RGYRQ1 adds functional enhancements including wider supply range (2.3–6.5 V vs. 2.7–5.5 V), RX_SEN programmability, I²C register access, and AEC-Q100 Grade 2 qualification not present in TUSB213RGET.