ADRF6516

Data Sheet FEATURES Matched pair of programmable filters and VGAs Continuous gain control range: 50 dB Digital gain control: 15 dB 6-pole Butterworth filter: 1 MHz to 31 MHz in 1 MHz steps, 1 dB corner frequency Preamplifier and postamplifier gain steps IMD3: >65 dBc for 1.5 V p-p composite output HD2, HD3: >65 dBc for 1.5 V p-p output Differential input and output Flexible output and input common-mode ranges Optional dc offset compensation loop SPI programmable filter corners and gain steps Power-down feature Single 3.3 V supply operation 31 MHz, Dual Programmable Filters and Variable Gain Amplifiers ADRF6516 FUNCTIONAL BLOCK DIAGRAM ENBL INP1 INM1 VPS COM VICM OFS1 VPS VPSD COMD LE CLK DATA SDO COM VPS SPI OPP1 OPM1 COM GAIN VOCM COM OPM2 ADRF6516 OPP2 APPLICATIONS Baseband IQ receivers Diversity receivers ADC drivers Point-to-point and point-to-multipoint radio Instrumentation Medical COM INP2 INM2 VPS COM OFDS OFS2 VPS Figure 1. http://www.DataSheet4U.net/ GENERAL DESCRIPTION The ADRF6516 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-of-band interferers while reliably boosting the desired 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 ADRF6516 i...