AD607

a FEATURES Complete Receiver on a Chip: Monoceiver™ Mixer –15 dBm 1 dB Compression Point –8 dBm Input Third Order Intercept 500 MHz RF and LO Bandwidths Linear IF Amplifier Linear-in-dB Gain Control MGC or AGC with RSSI Output Quadrature Demodulator On-Board Phase-Locked Quadrature Oscillator Demodulates IFs from 400 kHz to 12 MHz Can Also Demodulate AM, CW, SSB Low Power 25 mW at 3 V CMOS Compatible Power-Down Interfaces to AD7013 and AD7015 Baseband Converters APPLICATIONS GSM, CDMA, TDMA, and TETRA Receivers Satellite Terminals Battery-Powered Communications Receivers Low Power Mixer/AGC/RSSI 3 V Receiver IF Subsystem AD607 PIN CONFIGURATION 20-Lead SSOP (RS Suffix) FDIN 1 COM1 2 PRUP 3 LOIP 4 RFLO 5 20 VPS1 19 FLTR 18 IOUT 17 QOUT AD607 16 VPS2 TOP VIEW RFHI 6 (Not to Scale) 15 DMIP GREF 7 MXOP 8 VMID 9 IFHI 10 14 IFOP 13 COM2 12 GAIN/RS 11 IFLO GENERAL DESCRIPTION The AD607 is a 3 V low power receiver IF subsystem for operation at input frequencies as high as 500 MHz and IFs from 400 kHz to 12 MHz. It consists of a mixer, IF amplifiers, I and Q demodulators, a phase-locked quadrature oscillator, AGC detector, and a biasing system with external power-down. The AD607’s low noise, high intercept mixer is a doublybalanced Gilbert cell type. It has a nominal –15 dBm input referred 1 dB compression point and a –8 dBm input referred third-order intercept. The mixer section of the AD607 also includes a local oscillator (LO) preamplifier, which lowers the required LO driv...