company blog about ADI AD8347-EVALZ Fully Populated 800MHz To 2.7GHz Modulator Evaluation Board

ADI AD8347-EVALZ Fully Populated 800MHz To 2.7GHz Modulator Evaluation Board

Shenzhen Mingjiada Electronics Co., Ltd., as a professional supplier of electronic components, now offers the ADI AD8347-EVALZ evaluation board—a broadband direct quadrature demodulator evaluation board suitable for frequencies ranging from 800MHz to 2.7GHz, providing communication system design engineers with a complete hardware solution.

【Core Features of the AD8347-EVALZ Evaluation Board】

The AD8347-EVALZ is a dedicated evaluation board designed for the AD8347 device, primarily used to assess the performance of the AD8347 wideband direct quadrature demodulator.

The core component of this AD8347-EVALZ evaluation board, the AD8347, is a high-performance RF/IF quadrature demodulator with an input frequency range spanning 800MHz to 2.7GHz, suitable for various wireless communication systems.

The AD8347-EVALZ utilises a TSSOP package supporting surface-mount technology and complies with RoHS environmental standards.

The AD8347 chip integrates a two-stage variable gain amplifier and two Gilbert-type mixer stages. Its local oscillator quadrature phase divider employs multi-phase filter technology to achieve high quadrature accuracy and amplitude balance across the entire operating frequency range.

【AD8347-EVALZ Technical Specifications and Performance Parameters】

The AD8347-EVALZ evaluation board operates across a broad frequency range from 800MHz to 2.7GHz, making it suitable for multiple wireless communication standards.

The AD8347-EVALZ board consumes 64mA of supply current while maintaining excellent performance stability during normal operation.

The RF and baseband automatic gain control (AGC) amplifiers collectively provide a 69.5 dB gain control range, enabling the system to handle input signals of varying strengths.

The AD8347-EVALZ incorporates a baseband level detector for use within the AGC loop to maintain stable output levels.

Internal loop techniques effectively minimise the demodulator's DC offset, with its time constant adjustable via an external capacitor. Offset control may also be overridden by applying an external voltage to the offset correction pin.

【Technical Highlights of Core Chip AD8347】

Wide operating frequency range: 800MHz to 2.7GHz, covering most wireless communication bands

High-precision quadrature demodulation: Phase accuracy of 3 degrees, amplitude balance of 0.3dB, significantly reducing signal distortion caused by I/Q imbalance

High dynamic range AGC: Integrated 65dB linear automatic gain control capable of handling input signals with large amplitude variations

Flexible power supply design: Supports single-supply operation from 2.7V to 5.5V, incorporating power-saving features suitable for portable device applications

Low LO drive requirements: Requires only 10dBm local oscillator drive power, simplifying local oscillator design

【AD8347-EVALZ Evaluation Board Hardware Composition】

The AD8347-EVALZ is a fully assembled evaluation board, ready for use out of the box. Featuring a meticulously designed PCB layout to ensure RF signal integrity, it incorporates essential RF connectors, power interfaces, and control interfaces.

The AD8347-EVALZ also provides extensive test points, facilitating engineers' measurement of critical signals such as I/Q outputs, AGC control voltage, and local oscillator input.

【AD8347-EVALZ Application Domains】

Within cellular base station applications, the AD8347-EVALZ facilitates intermediate frequency (IF) subsystem design, enabling engineers to optimise receiver performance.

For wireless link and wireless local loop equipment, the AD8347-EVALZ's high linearity and automatic gain control (AGC) capability allow it to handle input signals with wide dynamic range.

The AD8347-EVALZ is equally suited for IF broadband demodulator designs, with its baseband output directly connectable to popular analogue-to-digital converters such as the AD9201 and AD9283.

Within test and measurement applications, the AD8347-EVALZ serves as a core component for RF instruments, facilitating signal analysis and system validation.

Satellite communications represent another significant application area for the AD8347-EVALZ evaluation board, particularly in satellite modem designs.

Mingjiada Electronics also maintains long-term supply of other ADI evaluation board components, including but not limited to the following models:

ADRF5716-EVALZ

ADRF6850-EVALZ

ADL8105-EVALZ

ADL8106-EVALZ

ADL8112-EVALZ

ADL8121-EVALZ

ADL8142-EVALZ

ADRF5141-EVALZ

AD8302-EVALZ

ADRF5144-EVALZ

AD8333-EVALZ

ADL5511-EVALZ

ADL5565-EVALZ

ADL6010-EVALZ

ADL6012-EVALZ

ADMV1013-EVALZ

ADMV4530IF-EVALZ

ADRF5020-EVALZ

ADRF5027-EVALZ

ADRF5040-EVALZ