GENERAL DESCRIPTION

The ADRF6510 is a matched pair of fully differential low noise and low distortion programmable filters and variable gain amplifiers (VGAs). Each channel is capable of rejecting large out-ofband interferers while reliably boosting the wanted signal, thus reducing the bandwidth and resolution requirements on the analog-to-digital converters (ADCs). The excellent matching between channels and their high spurious-free dynamic range over all gain and bandwidth settings make the ADRF6510 ideal for quadrature-based (IQ) communication systems with dense constellations, multiple carriers, and nearby interferers.

FEATURES

Matched pair of programmable filters and VGAs
Continuous gain control range: −5 dB to +45 dB
6-pole filter
1 MHz to 30 MHz in 1 MHz steps, 0.5 dB corner frequency
SPI programmable
6 dB front-end gain step
IMD3: >55 dBc for 1.5 V p-p composite output
HD2, HD3: >60 dBc for 1.5 V p-p output
Differential input and output
Adjustable output common-mode voltage
Optional dc output offset correction
Power-down feature
Single 5 V supply operation

APPLICATIONS

Baseband I/Q receivers
Diversity receivers
ADC drivers