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FEATURES Complete Receiver-on-a-Chip: Monoceiver® Mixer
–15 dBm 1 dB Compression Point –8 dBm Input Third Order Interc...
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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 Manual Gain Control Quadrature Demodulator On-Board Phase-Locked Quadrature Oscillator Demodulates IFs from 1 MHz to 12 MHz Can Also Demodulate AM, CW, SSB Low Power 25 mW at 3 V
CMOS Compatible Power-Down
APPLICATIONS GSM and TETRA Receivers Satellite Terminals Battery-Powered Communications Receivers
Low Power Mixer 3 V Receiver IF Subsystem
AD61009
PIN CONFIGURATION
20-Lead SSOP (RS Suffix)
FDIN 1
20 VPS1
COM1 2
19 FLTR
PRUP 3
18 IOUT
LOIP 4
17 QOUT
RFLO 5 AD61009 16 VPS2
RFHI
6
TOP VIEW (Not to Scale)
15
DMIP
GREF 7
14 IFOP
MXOP 8
13 COM2
VMID 9
12 GAIN
IFHI 10
11 IFLO
GENERAL DESCRIPTION The AD61009 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, and a biasing system with external power-down.
The AD61009’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 AD61009 also includes a local oscillator (LO) preamplifier, which lowers the required LO drive to –16 dBm.
In MGC operation, the AD61009 accepts an external gaincontrol...
