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AD6643 Datasheet Dual IF Receiver

Manufacturer: Analog Devices

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General Description

The AD6643 is an 11-bit, 200 MSPS/250 MSPS, dual-channel intermediate frequency (IF) receiver specifically designed to support multi-antenna systems in telecommunication applications where high dynamic range performance, low power, and small size are desired.

The device consists of two high performance analog-to-digital converters (ADCs) and noise shaping requantizer (NSR) digital blocks.

Each ADC consists of a multistage, differential pipelined architecture with integrated output error correction logic, and each ADC

Overview

Data Sheet.

Key Features

  • 11-bit, 250 MSPS output data rate per channel Performance with NSR enabled SNR: 74.5 dBFS in a 55 MHz band to 90 MHz at 250 MSPS SNR: 72.0 dBFS in a 82 MHz band to 90 MHz at 250 MSPS Performance with NSR disabled SNR: 66.2 dBFS up to 90 MHz at 250 MSPS SFDR: 85 dBc up to 185 MHz at 250 MSPS Total power consumption: 706 mW at 200 MSPS 1.8 V supply voltages LVDS (ANSI-644 levels) outputs Integer 1-to-8 input clock divider (625 MHz maximum input) Internal ADC voltage reference Flexible analog input.

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