Texas Instruments TUSB6020ZQE

Overview

TUSB6020ZQE from Texas Instruments is an evaluation module (EVM) built around the TUSB6020 USB 2.0 high-speed On-The-Go (OTG) dual-role controller IC with integrated PHY, designed for seamless VLYNQ interface connectivity to TI DSP platforms including TMS320C6437 and DM6437. It supports USB host/peripheral operation at low speed (1.5 Mb/s), full speed (12 Mb/s), and high speed (480 Mb/s), and enables OTG functionality, mass storage device emulation, and VLYNQ-to-USB bridge applications.

For engineers reviewing the TUSB6020ZQE datasheet, TUSB6020ZQE pinout, TUSB6020ZQE application, or TUSB6020ZQE equivalent, this EVM provides validated hardware reference design, clock source selection (19.2 MHz oscillator or 24 MHz crystal), GPIO-configurable operation modes, reset control options, and power measurement jumpers - all targeting rapid integration with DaVinci and C6000-series DSP evaluation platforms.

Technical Context

The TUSB6020ZQE EVM implements the TUSB6020 IC in a ZQE80 package (80-pin BGA), interfacing directly to the mini-PCI edge connector (P2) for plug-in compatibility with TI's C6437 and C6424 EVMs. Its VLYNQ interface operates at up to 100 MHz with matched trace routing, while USB signaling uses 90-Ω differential DP/DM pairs routed on the top layer with ground plane shielding.

Power delivery includes dedicated LDOs: TPS77618 (1.8 V), TPS70848 (1.5 V / 3.3 V), and TPS2051B (VBUS switch), with test jumpers (J37–J59) enabling rail-level current measurement. Clock selection is controlled via GPIO6 at power-up, choosing between CLKIN (19.2 MHz) or XI/XO (24 MHz), and GPIO7 must be hard-pulled low for functional initialization.

Key Specifications

Availability

TUSB6020ZQE is available at Aetrix Electronics and suitable for USB OTG development, DSP-based embedded video systems, industrial communication gateways, and VLYNQ-to-USB bridge prototyping requiring stable component supply and reference hardware validation.

Supply support for TUSB6020ZQE 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 (TI) is a global semiconductor company headquartered in Dallas, Texas, delivering analog, embedded processing, wireless connectivity, and digital signal processing technologies.

The TUSB6020ZQE EVM belongs to TI's DaVinci™ and C6000™ DSP ecosystem support portfolio, engineered specifically to accelerate USB 2.0 OTG integration for video, imaging, and real-time communications applications on TI's VLYNQ-enabled processors.

FAQ

What is the TUSB6020ZQE and how does it differ from the TUSB6020 IC?

The TUSB6020ZQE is an evaluation module (EVM), not a standalone IC. It integrates the TUSB6020 USB 2.0 OTG controller IC in a ZQE80 BGA package onto a fully assembled PCB with VLYNQ interface, USB Mini-AB connector, voltage regulators, clock sources, GPIO switches, and test jumpers. Unlike the bare TUSB6020 IC, the TUSB6020ZQE provides immediate hardware validation and plug-in compatibility with TI's C6437 and DM6437 DSP platforms - enabling rapid firmware and driver development without custom board design.

Which DSP platforms is the TUSB6020ZQE compatible with?

The TUSB6020ZQE is explicitly compatible with TI DSP evaluation modules equipped with an active VLYNQ interface and mini-PCI slot, including the TMS320C6437 Digital Video Development Platform, TMS320C6424 DSP Evaluation Module, and DaVinci LC EVM. Compatibility relies on mechanical alignment of the 128-pin mini-PCI edge connector (P2) and electrical matching of VLYNQ signal timing, power domains, and reset sequencing as defined in the SLAU242 User's Guide.

How is clock selection configured on the TUSB6020ZQE?

Clock selection on the TUSB6020ZQE is controlled by Switch 7 on the S1 DIP-8 toggle switch bank, which drives GPIO6 of the TUSB6020 IC at power-up. When Switch 7 is ON (GPIO6 = low), the 24 MHz crystal (X2) is selected via the XI/XO pins. When OFF (GPIO6 = high), the 19.2 MHz oscillator (X1) is selected via the CLKIN pin. This configuration must be set before powering the board, as the clock source is latched during initialization.

Does the TUSB6020ZQE support USB mass storage device mode?

Yes, the TUSB6020ZQE supports USB mass storage device (MSC) mode. As documented in SLAU242, the EVM can be configured - via software and GPIO settings - to operate as a USB peripheral presenting itself as a mass storage device to a host PC. This capability has been verified using TI's Code Composer Studio v3.3 and C6424 software stack, enabling file transfer testing and embedded storage emulation without modifying hardware.

What are the critical power-up requirements for reliable operation of the TUSB6020ZQE?

Two GPIO pins require strict power-up conditions: GPIO7 must be hard-pulled low (via onboard resistor R116) for the TUSB6020 IC to initialize correctly; failure to do so results in non-functional behavior. Additionally, the VLYNQ interface requires synchronized power sequencing - the 1.8 V (VDD_1.8V_TUSB6020), 1.5 V (VDD_1.5V), and 3.3 V (VDDA_3.3V/VDDS_3.3V) rails must be stable before VLYNQ_CLK and CRUN are asserted. The onboard TPS3836E18 reset supervisor ensures proper reset assertion during power ramp-up.