ADRF6518ACPZ-WP

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.