Texas Instruments TUSB6020PFC

Overview

TUSB6020PFC 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 full-speed (12 Mb/s), high-speed (480 Mb/s), and low-speed (1.5 Mb/s) USB operation, and enables OTG host/device mode switching and USB mass storage device emulation.

For engineers reviewing the TUSB6020PFC datasheet, TUSB6020PFC pinout, TUSB6020PFC application, or TUSB6020PFC equivalent, this EVM provides validated hardware reference for USB OTG integration with VLYNQ-enabled DSPs, clock source selection (19.2 MHz oscillator or 24 MHz crystal), GPIO-controlled configuration, and power measurement-ready voltage rail jumpers - critical for embedded multimedia and video processing system development.

Technical Context

The TUSB6020PFC implements a USB 2.0-compliant OTG controller with integrated PHY, supporting dual-role operation (host/peripheral) via VLYNQ serial interface at up to 480 Mb/s. It interfaces directly with TI's C64x+ DSPs using VLYNQ TXD/RXD[3:0], CRUN, and CLK signals, and features dedicated GPIOs (GPIO0–GPIO7) for runtime mode control and clock source selection.

Power architecture includes discrete LDO regulators (TPS77618 for 1.8 V, TPS70848 for 1.5 V/3.3 V, TPS2051B for VBUS switching), test-accessible voltage rails (VDDA3.3V, VDDD1.5V, VDDCM1.5V, VDD1.8V), and configurable clock inputs (CLKIN or XI/XO). The board uses a mini-PCI edge connector (128-pin) for DSP platform interfacing and a USB Micro-AB connector for OTG testing.

Key Specifications

Availability

TUSB6020PFC is available at Aetrix Electronics and suitable for USB OTG validation, DSP-based video processing prototyping, and VLYNQ interface development requiring stable component supply and documented reference hardware.

Supply support for TUSB6020PFC 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, specializing in analog, embedded processing, and connectivity technologies for industrial, automotive, and communications applications.

The TUSB6020PFC belongs to TI's USB connectivity evaluation platform family, engineered to accelerate development of USB OTG functionality in DSP-centric embedded systems - particularly digital video, multimedia, and real-time signal processing applications.

FAQ

What is the TUSB6020PFC and how does it differ from the TUSB6020 IC?

The TUSB6020PFC is an evaluation module (EVM), not a standalone IC. It integrates the TUSB6020ZQE USB 2.0 OTG controller IC with supporting circuitry including VLYNQ interface routing, dual clock sources (19.2 MHz and 24 MHz), LDO regulators (TPS77618, TPS70848, TPS2051B), USB Micro-AB connector, and mini-PCI edge connector. Unlike the bare TUSB6020 IC, the TUSB6020PFC provides fully validated hardware for rapid OTG host/device testing with TI DSP platforms like the TMS320C6437.

Which DSP platforms is the TUSB6020PFC compatible with?

The TUSB6020PFC is explicitly compatible with TI DSP platforms equipped with an active VLYNQ interface and mini-PCI slot, including the TMS320C6437 Digital Video Development Platform and the TMS320C6424 DSP Evaluation Module. Its 128-pin mini-PCI edge connector (P2) mates directly with these platforms, enabling VLYNQ signal routing (TXD/RXD[3:0], CRUN, CLK) and power delivery without adapter hardware.

How is clock source selection implemented on the TUSB6020PFC?

Clock source selection on the TUSB6020PFC is controlled by GPIO6 at power-up: pulling GPIO6 low selects the XI/XO crystal input (24 MHz, X2), while pulling GPIO6 high selects the CLKIN oscillator input (19.2 MHz, X1). This is configured via Switch 7 on the S1 DIP-8 toggle switch bank. The design note confirms only one clock source may be active at a time, and X1 must be placed close to U1 (TUSB6020ZQE) per layout guidance.

Does the TUSB6020PFC support USB On-The-Go (OTG) host and device modes?

Yes, the TUSB6020PFC fully supports USB OTG dual-role operation as confirmed in SLAU242: it has proven OTG host and OTG device capability, and can alternatively be configured as a USB mass storage device. The ID pin on the USB Micro-AB connector (J13) enables role detection, and GPIO7 must be held low (via Switch 8) for proper initialization - ensuring reliable mode negotiation during enumeration.

What power measurement capabilities does the TUSB6020PFC provide?

The TUSB6020PFC includes ten dedicated power measurement jumpers (J37, J38, J39, J40, J42, J43, J45, J46, J51, J59) placed across key voltage rails (VDDA3.3V, VDDD1.5V, VDDCM1.5V, VDD1.8V, VBUS, etc.). Each jumper defaults to a shorted trace; cutting the trace and inserting an ammeter between pins enables direct current measurement per rail. Schematic documentation (SLAU242 Figure 1-7) specifies exact placement and associated rails for accurate power profiling.