AD6643-200EBZ

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RF evaluation and development kits, boards are important components in the development of RF related hardware. AD6643-200EBZ is a type of kit that provides an evaluation platform for developing, experiencing, and testing transceiver applications. It is a high-performance, monolithic, 18-bit analog-to-digital converter optimized for the RF band.

Application Field

The AD6643-200EBZ is designed to address the full range of test and development needs of modern radio transceiver applications such as wireless terminals and base stations. As a monolithic ADC, it offers wide dynamic range and high linearity performance over the range of typical cellular frequencies used in 2G/3G and 4G communication standards. It is also highly suitable for point-to-point radio systems, radar receivers, and other long-range communications.

The AD6643-200EBZ is an ideal low-power ADC solution for 3G/4G base station transceivers. It provides higher linearity and signal-to-noise ratio (SNR) than traditional solutions. It also operates at lower power dissipation levels, which is important for stringent temperature regulation requirements of RF-exposed systems. With differential analog inputs and an integrated oscillator, the board makes transceiver design easier.

Working Principle

The AD6643-200EBZ board uses a proprietary architecture to deliver low power performance with excellent dynamic range. It has an 18-bit resolution, 96 dB dynamic range, and a sampling rate of 125MSPS. The board features an integrated oscillator that is user-selectable to either 12MHz or 19.2MHz and provides a reliable clock signal for the ADC.

AD6643-200EBZ board uses a unique asynchronous delta-sigma architecture. The board features a Delta-Sigma modulator, which utilizes a 4th order noise shaping instead of a 2nd order noise shaping in conventional converters. This 4th order noise shaping provides high dynamic range at low resolution which helps to reduce the effect of additive noise and still maintain good SNR performance.

The board also features a multi-gain-level converter that helps provide the user with adjustable gain based on the dynamic range and noise requirements of the application. With its excellent analog performance and ultra-low power consumption, the AD6643-200EBZ board is a perfect solution for developing and testing RF systems.

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