Блог компании ADI AD8348-EVALZ Broadband Quadrature Demodulator Evaluation Board

ADI AD8348-EVALZ Broadband Quadrature Demodulator Evaluation Board

Shenzhen Mingjiada Electronics Co., Ltd. is a specialist supplier of electronic components, offering the AD8348-EVALZ – a broadband quadrature demodulator evaluation board delivering outstanding performance across the 50 MHz to 1,000 MHz operating band. This provides engineers with a comprehensive solution to rapidly evaluate, validate and develop high-performance demodulation systems based on the AD8348.

【AD8348 Chip: The Core of High-Performance Quadrature Demodulation】

Manufactured using advanced bipolar technology, the AD8348 chip integrates extensive functionality within a 28-pin TSSOP package.

The device incorporates two Gilbert mixers and an X-AMP VGA, forming its core processing capability.

The IF VGA provides approximately 45dB of gain control range with precise linear dB gain characteristics and incorporates temperature compensation.

The on-chip LO quadrature phase separator employs a two-stage frequency divider, achieving high-precision quadrature and amplitude balance across the entire operating frequency range.

The AD8348 performs quadrature demodulation from IF directly to baseband frequency in communications receivers. Its baseband amplifier is designed for direct interfacing with dual-channel ADCs.

【AD8348-EVALZ Evaluation Board Features and Benefits】

The AD8348-EVALZ evaluation board is specifically designed for comprehensive testing and validation of the AD8348 chip's performance.

The AD8348-EVALZ employs an optimised trace layout to enhance signal integrity and incorporates a prototype area for filter design at the mixer output, providing engineers with a flexible testing environment.

The AD8348-EVALZ integrates SMA connectors for straightforward connection to test equipment.It requires only a single supply voltage ranging from 2.7V to 5.5V, simplifying external circuit design.

The core chip of the AD8348-EVALZ evaluation board, the AD8348, is a broadband quadrature demodulator integrating an intermediate frequency (IF) variable gain amplifier (VGA) and a baseband amplifier.

The AD8348-EVALZ features:

Plug-and-play functionality: Provides a complete evaluation environment without complex additional circuit design

Comprehensive interface support: Includes all necessary input/output connectors for straightforward signal access and test measurements

Optimised layout design: Precisely engineered RF traces ensure signal integrity

Flexible external component integration: Allows customisation of filters and impedance matching networks

Using the AD8348-EVALZ evaluation board, engineers can rapidly validate the AD8348's performance in real-world applications, significantly reducing product development cycles.

【Primary Application Scenarios for the AD8348-EVALZ Evaluation Board】

Wireless Communication Systems

Within modern wireless communication systems, the AD8348-EVALZ facilitates evaluation of receiver link demodulation performance. It supports multiple communication standards, including W-CDMA, CDMA, and GSM.

For 5G and LTE system design, this evaluation board assists engineers in optimising demodulator parameters to achieve high data rate communication with low bit error rates.

Radar Detection and Electronic Warfare

Radar systems impose stringent demands on quadrature demodulators, as radar signals typically exhibit rapid amplitude variations, broad spectral bandwidths, and exacting time-domain resolution requirements.

The AD8348 employs advanced mixer and filter circuitry to accurately capture target echo signals and convert them into baseband signals for subsequent processing.

In electronic warfare systems, the AD8348-EVALZ can be used to evaluate a system's anti-jamming capabilities and noise suppression performance within complex electromagnetic environments.

Satellite Navigation and Positioning

Satellite navigation systems must process weak signals from satellites while maintaining high-precision signal demodulation across wide ranges.

The AD8348's broadband demodulation capability offers broad application prospects in navigation systems such as GPS, GLONASS, BeiDou, and Galileo.

Using the AD8348-EVALZ evaluation board, engineers can validate device performance under high-dynamic environments and complex multipath interference conditions, ensuring positioning data accuracy.

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

AD8347-EVALZ

AD8348-EVALZ

AD8352-EVALZ

AD8361-EVALZ

AD8364-EVALZ

AD8363-EVALZ

AD8432-EVALZ

ADL5205-EVALZ

ADL5320-EVALZ

ADL5324-EVALZ

ADL5350-EVALZ

ADL5371-EVALZ

ADL5500-EVALZ

ADL5501-EVALZ

ADL5502-EVALZ