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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 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
Low Power Mixer
3 V Receiver IF Subsystem
AD607
PIN CONFIGURATION
20-Lead SSOP
(RS Suffix)
FDIN 1
20 VPS1
COM1 2
19 FLTR
PRUP 3
18 IOUT
LOIP 4
17 QOUT
16 VPS2
AD607
TOP VIEW 15 DMIP
(Not to Scale)
14 IFOP
GREF 7
RFLO 5
RFHI 6
MXOP 8
13 COM2
VMID 9
12 GAIN
IFHI 10
11 IFLO
APPLICATIONS
GSM, CDMA, TDMA, and TETRA Receivers
Satellite Terminals
Battery-Powered Communications Receivers
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, and a
biasing system with external power-down.
The AD607’s low noise, high intercept mixer is a doubly
balanced 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 drive to –16 dBm.
The I and Q demodulators provide in-phase and quadrature
baseband outputs to interface with Analog Devices’ AD7013
(IS54, TETRA, MSAT) and AD7015 (GSM) baseband converters. A quadrature VCO phase-locked to the IF drives the I
and Q demodulators. The I and Q demodulators can also
demodulate AM; when the AD607’s quadrature VCO is phaselocked to the received signal, the in-phase demodulator becomes
a synchronous product detector for AM. The VCO can also be
phase-locked to an external beat-frequency oscillator (BFO),
and the demodulator serves as a product detector for CW or
SSB reception. Finally, the AD607 can be used to demodulate
BPSK using an external Costas Loop for carrier recovery.
In MGC operation, the AD607 accepts an external gain-control
voltage input from an external AGC detector or a DAC.
Monoceiver is a registered trademark of Analog Devices, Inc.
REV. C
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 2002
