STMicroelectronics STEVAL-CCA004V1

Overview

STEVAL-CCA004V1 from STMicroelectronics is an evaluation board built around the TSH120 video buffer IC, designed for composite video signal conditioning in analog video systems. It integrates a 6 dB fixed-gain voltage-feedback amplifier with rail-to-rail output, internal reconstruction filter, SAG correction, and DC level shifting - all operating from +2.2 V to +5.5 V supply and delivering differential gain of 0.5 % and differential phase of 0.5° into 150 Ω.

For engineers reviewing the STEVAL-CCA004V1 datasheet, STEVAL-CCA004V1 pinout, STEVAL-CCA004V1 application, or STEVAL-CCA004V1 equivalent, this board enables rapid validation of TSH120-based video buffering, SAG compensation, and low-power standby operation in legacy CVBS signal chains used in set-top boxes, analog CCTV front-ends, and broadcast monitoring equipment.

Technical Context

The STEVAL-CCA004V1 implements a complete single-channel CVBS video buffer path using the TSH120, which features internal biasing, 10 ns group delay, and power-down control for ultra-low standby consumption. Its schematic includes input coupling, DC level shift, reconstruction filtering, and 75 Ω output termination matched to standard video loads.

Designed specifically for 150 Ω load drive with rail-to-rail output swing, the board supports full-swing composite video signals (1 Vpp) while maintaining tight differential gain/phase specs - critical for color fidelity in SD analog video transmission and display interfaces.

Key Specifications

Availability

STEVAL-CCA004V1 is available at Aetrix Electronics and suitable for analog video signal conditioning, CVBS front-end design validation, and SAG correction prototyping requiring stable component supply and documented reference implementation.

Supply support for STEVAL-CCA004V1 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in microcontrollers, analog ICs, power management, and automotive-grade silicon.

The STEVAL-CCA004V1 belongs to ST's evaluation board portfolio for analog signal conditioning, developed to accelerate adoption of its high-fidelity video buffer ICs in broadcast, surveillance, and consumer video equipment.

FAQ

What is the primary function of the STEVAL-CCA004V1 evaluation board?

The STEVAL-CCA004V1 is a ready-to-use hardware platform that demonstrates and validates the TSH120 video buffer IC. Its core function is to condition composite video (CVBS) signals by providing gain, SAG correction, DC level shifting, and reconstruction filtering - all in a single-board solution optimized for 150 Ω load drive and low-power operation.

Does the STEVAL-CCA004V1 support power-down mode, and how is it controlled?

Yes - the board inherits the TSH120's power-down feature, activated via the EN (enable) pin on the IC. When pulled low, the amplifier enters ultra-low-consumption standby mode. The evaluation board provides direct access to this pin through a test point and optional jumper, enabling system-level sleep/wake control during video signal path optimization.

Can the STEVAL-CCA004V1 be used with 75 Ω video sources and displays?

Yes - although specified for 150 Ω load, the board's output stage is compatible with standard 75 Ω video systems. It uses series 75 Ω termination at the output and expects 75 Ω source impedance; proper double-termination (75 Ω source + 75 Ω load) yields the intended 150 Ω effective load, meeting SMPTE RP-168 guidelines for CVBS signal integrity.

Is the STEVAL-CCA004V1 still in active production, and what is its lifecycle status?

No - STMicroelectronics has marked STEVAL-CCA004V1 as obsolete, as confirmed in the February 2008 data brief revision history. While no longer manufactured, Aetrix Electronics maintains limited legacy stock and provides full technical documentation, schematic, and application context to support maintenance, repair, and reverse-engineering of existing analog video systems.