Description

Dual Programmable Filters and VGAs for 2 GHz Channel Spacing forW Radios Features: Matched VGAs and programmable filters Maximum gain: 53 dB Continuous gain control range: 60 dB Filter bypass mode I/Q bandwidth ±1 dB gain flatness: >1250 MHz 4-pole Butterworth filter I/Q bandwidth: 36 MHz to 720 MHz RMS detector IMD3: <−55 dBc for 1.5 V p-p composite output HD2, HD3: <−55 dBc for 1.5 V p-p output Noise figure: 10.5 dB at maximum gain NF < 11 dB over 12 dB of VGA2 gain backoff 100 differential input, low impedance output Optional dc output offset correction SPI-programmable filter corners Single 3.3 V supply operation with power-down feature