The ADRF6518ACPZ-WP is a 1100MHz Distortion Programmable Filter and Variable Gain Amplifier (VGAs). Each channel is capable of rejecting large out-of-band 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 ADRF6518 ideal for quadrature-based (IQ) communication systems with dense constellations, multiple carriers and nearby interferers. The various amplifier gains, filter corners and other features are all programmable via a serial port interface (SPI) port. The first VGA that precedes the filters offers 24dB of continuous gain control with fixed gain options of 9, 12, 15dB and sets a differential input impedance of 400R. The filters provide a six-pole Butterworth response with 0.5dB corner frequencies from 1 to 63MHz in 1MHz steps.
Matched pair of programmable filters and triple VGAs
72dB Continuous gain control range
30dB Digital gain control
Filter bypass mode bandwidth (BW)
Peak detector
Differential input and output
Flexible output and input common-mode ranges
Optional DC output offset correction
SPI programmable filter corners and gain steps
Single 3.3V supply operation with power-down feature
