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AD607ARS
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 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
AD
Analog Devices
U.S.A
半導体デバイスを製造するアメリカの多国籍企業。特にADC、DAC、MEMS、DSPなどに強い。現在は 65nm から 3μm のプロセスルールの回路を設計している。
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