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.

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 V)
        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 μA Sleep Mode Operation
        2.7 V to 5.5 V Operation
    Interfaces to AD7013, AD7015 and AD6421 Baseband Converters
    20-Lead SSOP