Diodes Incorporated ZXFV201EV

Overview

ZXFV201EV from Zetex Semiconductors is an evaluation board designed for the ZXFV201 quad-channel video amplifier, supporting laboratory characterization of wide-bandwidth analog video signal paths. It implements a double-sided PCB layout with BNC connectors, 150 Ω load matching (equivalent to 75 Ω back-terminated video line), 50 Ω output impedance, and −9.45 dB overall gain at unity input termination.

For engineers reviewing the ZXFV201EV datasheet, ZXFV201EV pinout, ZXFV201EV application, or ZXFV201EV equivalent, this board provides verified RF layout practices, precision impedance-matched output circuitry, ground plane implementation guidance, and decoupling capacitor placement validated for >100 MHz video bandwidth operation.

Technical Context

The ZXFV201EV board is purpose-built for evaluating the ZXFV201's high-speed performance in composite video, RGB, or YPbPr signal chains. It incorporates a resistor-based matching network delivering precise 150 Ω load presentation and 50 Ω output impedance, with measured attenuation of 15.45 dB and configured amplifier voltage gain of 2.

Layout mandates a continuous ground plane beneath the IC (except under the inverting input), plated-through vias for low-inductance grounding, and tiered decoupling: 1000 pF NPO + 0.1 µF X7R per supply rail, supplemented by 1–10 µF solid tantalum or ceramic bulk capacitors located near regulators.

Key Specifications

Availability

ZXFV201EV is available at Aetrix Electronics and suitable for video signal chain validation, high-frequency analog design verification, and amplifier stability testing requiring stable component supply and traceable reference hardware.

Supply support for ZXFV201EV 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

Zetex Semiconductors (now part of Diodes Incorporated) specialized in high-performance analog and interface ICs, with emphasis on video, RF, and precision amplification solutions for industrial and broadcast applications.

The ZXFV201EV belongs to Zetex's video amplifier evaluation platform family, engineered to accelerate design-in of wide-bandwidth video drivers by providing production-grade layout, impedance control, and measurement-ready interconnects.

FAQ

What is the primary function of the ZXFV201EV evaluation board?

The ZXFV201EV is a dedicated evaluation platform for the ZXFV201 quad-channel video amplifier. It enables accurate laboratory measurement of small-signal bandwidth, gain flatness, differential phase/delay, and stability under real-world 50 Ω source/load conditions using standardized BNC interfaces and validated PCB layout techniques.

Does the ZXFV201EV support single-ended or differential video signals?

The ZXFV201EV is configured for single-ended video signal evaluation, as confirmed by its schematic (Figure 1), BNC input/output routing, and resistor-based 150 Ω load matching network. The ZXFV201 IC itself is not a fully differential amplifier; it uses single-ended inputs and outputs with internal compensation optimized for composite and component video standards.

Can the ZXFV201EV be used with the ZXFV203 triple-channel amplifier?

Yes - the ZXFV201EV board shares the same PCB artwork and mechanical layout with the ZXFV203EV variant (per documentation title and parts list notes). Component population differs: U1 is populated with ZXFV201 for this board, while ZXFV203EV uses ZXFV203; all passive components, BNCs, and layout remain identical and interoperable.

What decoupling capacitor configuration is implemented on the ZXFV201EV?

The board implements dual-stage decoupling per supply rail: a 1000 pF NPO ceramic capacitor (0805 or smaller) placed closest to each VCC/VEE pin, plus an adjacent 0.1 µF X7R ceramic capacitor. Bulk decoupling (1–10 µF) is intended off-board near voltage regulators, using solid tantalum or ceramic types as specified in the design guidelines.