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AD6459 - GSM 3 V Receiver IF Subsystem

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General Description

The AD6459 is a 3 V, low power receiver IF subsystem for operation at input frequencies as high as 500 MHz and IFs from 5 MHz up to 50 MHz.

It is optimized for operation in GSM, DCS1800 and PCS1900 receivers.

It consists of a mixer, an IF amplifier, I and Q demodulators, a phase-locked quadrature oscillator, a precise AGC subsystem, and a biasing system with external power-down.

Overview

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Key Features

  • Fully Compliant with Standard and Enhanced GSM Specification.
  • 11 dBm Input 1 dB Compression Point 0 dBm Input Third Order Intercept 10 dB SSB Noise Figure (50 ⍀) DC-500 MHz RF and LO Bandwidths Linear IF Amplifier Linear-in-dB and Stable over Temperature Voltage Gain Control Quadrature Demodulator On-Board Phase-Locked Quadrature Oscillator Demodulates IFs from 5 MHz to 50 MHz Low Power 8 mA at Midgain 2 ␮A Sleep Mode Operation 2.7 V to 5.5 V Operation Interfaces to AD7013, AD7015 and AD.

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