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