Low Power Mixer a 3 V Receiver IF Subsystem AD607 FEATURES PIN CONFIGURATION Complete Receiver-on-a-Chip: Monoceiver Mixer 15 dBm 1 dB Compression Point 20-Lead SSOP 8 dBm Input Third Order Intercept (RS Suffix) 500 MHz RF and LO Bandwidths Linear IF Amplifier Linear-in-dB Gain Control 1 20 VPS1 FDIN Manual Gain Control COM1 2 19 FLTR Quadrature Demodulator PRUP 3 18 IOUT On-Board Phase-Locked Quadrature Oscillator LOIP 4 17 QOUT Demodulates IFs from 400 kHz to 12 MHz 16 RFLO 5 VPS2 AD607 Can Also Demodulate AM, CW, SSB TOP VIEW 6 15 DMIP RFHI (Not to Scale) Low Power GREF 7 14 IFOP 25 mW at 3 V 8 MXOP 13 COM2 CMOS Compatible Power-Down 9 VMID 12 GAIN Interfaces to AD7013 and AD7015 Baseband Converters 10 11 IFHI IFLO APPLICATIONS GSM, CDMA, TDMA, and TETRA Receivers Satellite Terminals Battery-Powered Communications Receivers GENERAL DESCRIPTION The I and Q demodulators provide in-phase and quadrature The AD607 is a 3 V low power receiver IF subsystem for opera- baseband outputs to interface with Analog Devices AD7013 tion at input frequencies as high as 500 MHz and IFs from (IS54, TETRA, MSAT) and AD7015 (GSM) baseband con- 400 kHz to 12 MHz. It consists of a mixer, IF amplifiers, I and verters. A quadrature VCO phase-locked to the IF drives the I Q demodulators, a phase-locked quadrature oscillator, and a and Q demodulators. The I and Q demodulators can also biasing system with external power-down. demodulate AM when the AD607s quadrature VCO is phase- locked to the received signal, the in-phase demodulator becomes The AD607s low noise, high intercept mixer is a doubly a synchronous product detector for AM. The VCO can also be balanced Gilbert cell type. It has a nominal 15 dBm input phase-locked to an external beat-frequency oscillator (BFO), referred 1 dB compression point and a 8 dBm input referred and the demodulator serves as a product detector for CW or third order intercept. The mixer section of the AD607 also SSB reception. Finally, the AD607 can be used to demodulate includes a local oscillator (LO) preamplifier, which lowers the BPSK using an external Costas Loop for carrier recovery. required LO drive to 16 dBm. 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. 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 Tel: 781/329-4700 www.analog.com under any patent or patent rights of Analog Devices. Fax: 781/326-8703 Analog Devices, Inc., 2002AD607SPECIFICATIONS ( T = 25 C, Supply = 3.0 V, IF = 10.7 MHz, unless otherwise noted.) A AD607ARS Model Conditions Min Typ Max Unit DYNAMIC PERFORMANCE MIXER Maximum RF and LO Frequency Range For Conversion Gain > 20 dB 500 MHz Maximum Mixer Input Voltage For Linear Operation Between RFHI and RFLO 54 mV Input 1 dB Compression Point RF Input Terminated in 50 15 dBm Input Third-Order Intercept RF Input Terminated in 50 5 dBm Noise Figure Matched Input, Max Gain, f = 83 MHz, IF = 10.7 MHz 14 dB Matched Input, Max Gain, f = 144 MHz, IF = 10.7 MHz 12 dB Maximum Output Voltage at MXOP Z = 165 , at Input Compression 1.3 V IF Mixer Output Bandwidth at MXOP 3 dB, Z = 165 45 MHz IF LO Drive Level Mixer LO Input Terminated in 50 16 dBm LO Input Impedance LOIP to VMID 1 k Isolation, RF to IF RF = 240 MHz, IF = 10.7 MHz, LO = 229.3 MHz 30 dB Isolation, LO to IF RF = 240 MHz, IF = 10.7 MHz, LO = 229.3 MHz 20 dB Isolation, LO to RF RF = 240 MHz, IF = 10.7 MHz, LO = 229.3 MHz 40 dB Isolation, IF to RF RF = 240 MHz, IF = 10.7 MHz, LO = 229.3 MHz 70 dB IF AMPLIFIERS Noise Figure Max Gain, f = 10.7 MHz 17 dB Input 1 dB Compression Point IF = 10.7 MHz 15 dBm Output Third-Order Intercept IF = 10.7 MHz 18 dBm Maximum IF Output Voltage at IFOP Z = 600 560 mV IF Output Resistance at IFOP From IFOP to VMID 15 Bandwidth 3 dB at IFOP, Max Gain 45 MHz GAIN CONTROL (See Figures 23 and 24) Gain Control Range Mixer + IF Section, GREF to 1.5 V 90 dB Gain Scaling GREF to 1.5 V 20 mV/dB GREF to General Reference Voltage V 75/V dB/V R R Gain Scaling Accuracy GREF to 1.5 V, 80 dB Span 1dB Bias Current at GAIN 5 A Bias Current at GREF 1 A Input Resistance at GAIN, GREF 1M I AND Q DEMODULATORS Required DC Bias at DMIP VPOS/2 V dc Input Resistance at DMIP From DMIP to VMID 50 k Input Bias Current at DMIP 2 A Maximum Input Voltage IF > 3 MHz 150 mV IF 3 MHz 75 mV Amplitude Balance IF = 10.7 MHz, Outputs at 600 mV p-p, F = 100 kHz 0.2 dB Quadrature Error IF = 10.7 MHz, Outputs at 600 mV p-p, F = 100 kHz 1.2 Degrees Phase Noise in Degrees IF = 10.7 MHz, F = 10 kHz 100 dBc/Hz Demodulation Gain Sine Wave Input, Baseband Output 18 dB Maximum Output Voltage R 20 k 1.23 V L Output Offset Voltage Measured from I , Q to VMID 150 +10 +150 mV OUT OUT Output Bandwidth Sine Wave Input, Baseband Output 1.5 MHz PLL Required DC Bias at FDIN VPOS/2 V dc Input Resistance at FDIN From FDIN to VMID 50 k Input Bias Current at FDIN 200 nA Frequency Range 0.4 to 12 MHz Required Input Drive Level Sine Wave Input at Pin 1 400 mV Acquisition Time to 3 IF = 10.7 MHz 16.5 s POWER-DOWN INTERFACE Logical Threshold For Power Up on Logical High 2 V dc Input Current for Logical High 75 A Turn-On Response Time To PLL Locked 16.5 s Standby Current 550 A POWER SUPPLY Supply Range 2.92 5.5 V Supply Current Midgain, IF = 10.7 MHz 8.5 mA OPERATING TEMPERATURE T to T Operation to 2.92 V Minimum Supply Voltage 25 +85 C MIN MAX Operation to 4.5 V Minimum Supply Voltage 40 +85 C Specifications subject to change without notice. REV. C 2