Dual Low Power a Frequency Synthesizers ADF4217L/ADF4218L/ADF4219L FEATURES GENERAL DESCRIPTION Total I : 7.1 mA The ADF4217L/ADF4218L/ADF4219L are low power dual DD Bandwidth/RF 3.0 GHz frequency synthesizers that can be used to implement local ADF4217L/ADF4218L, IF 1.1 GHz oscillators in the up-conversion and down-conversion sections ADF4219L, IF 1.0 GHz of wireless receivers and transmitters. They can provide the LO 2.6 V to 3.3 V Power Supply for both the RF and IF sections. They consist of a low noise 1.8 V Logic Compatibility digital PFD (phase frequency detector), a precision charge pump, a Separate V Allows Extended Tuning Voltage programmable reference divider, programmable A and B counters, P Selectable Dual Modulus Prescaler and a dual modulus prescaler (P/P + 1). The A and B counters, Selectable Charge Pump Currents in conjunction with the dual modulus prescaler (P/P + 1), Charge Pump Current Matching of 1% implement an N divider (N = BP + A). In addition, the 14-bit 3-Wire Serial Interface reference counter (R Counter) allows selectable REFIN fre- Power-Down Mode quencies at the PFD input. A complete PLL (phase-locked loop) can be implemented if the synthesizers are used with an APPLICATIONS external loop filter and VCOs (voltage controlled oscillators). Wireless Handsets (GSM, PCS, DCS, CDMA, WCDMA) Control of all the on-chip registers is via a simple 3-wire interface Base Stations for Wireless Radio (GSM, PCS, DCS, WCDMA) with 1.8 V compatibility. The devices operate with a power supply Wireless LANs ranging from 2.6 V to 3.3 V and can be powered down when Communications Test Equipment not in use. Cable TV Tuners (CATV) FUNCTIONAL BLOCK DIAGRAM ADF4219L ONLY V 1 V 2 V 1 V 2 NC DD DD P P ADF4217L/ N = BP + A ADF4218L/ 11(13)-BIT IF PHASE ADF4219L B COUNTER COMPARATOR IF A IN IF CHARGE PRESCALER CP IF IF B IN PUMP 6(5)-BIT IF ADF4217L A COUNTER ADF4218L ONLY IF LOCK DETECT REF BUFFER IN 14(15)-BIT IF R COUNTER OUTPUT CLOCK MUXOUT MUX 22-BIT DATA DATA SDOUT REGISTER LE RF 14(15)-BIT RF LOCK R COUNTER DETECT N = BP + A 11(13)-BIT RF CHARGE CP RF PUMP B COUNTER RF A IN RF PHASE PRESCALER COMPARATOR RF B IN 6(5)-BIT RF A COUNTER DGND AGND DGND AGND FEATURES IN ( ) REFER TO ADF4219L RF RF IF IF NC = NO CONNECT 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. 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. Trademarks and Fax: 781/326-8703 2003 Analog Devices, Inc. All rights reserved. registered trademarks are the property of their respective companies.1 ADF4217L/ADF4218L/ADF4219LSPECIFICATIONS (V 1 = V 2 = 2.6 V to 3.3 V V 1, V 2 = V to 5.5 V AGND = DGND = 0 V T = T to T , unless otherwise noted.) DD DD P P DD A MIN MAX 2 BChips 1 Parameter B Version (Typical) Unit Test Conditions/Comments RF CHARACTERISTICS Use a square wave for operation below minimum frequency spec. RF Input Frequency (RF ) IN ADF4217L, ADF4218L 0.15/3.0 0.15/3.0 GHz min/max 10 dBm minimum input signal ADF4217L, ADF4218L 0.15/2.5 0.15/2.5 GHz min/max 15 dBm minimum input signal ADF4219L 0.8/2.2 0.8/2.2 GHz min/max 20 dBm minimum input signal RF Input Sensitivity ADF4217L, ADF4218L 15/0 15/0 dBm min/max ADF4219L 20/0 20/0 dBm min/max IF Input Frequency (IF ) IN ADF4217L/ADF4218L 0.045/1.1 0.045/1.1 GHz min/max 15 dBm minimum input signal ADF4219L P = 16/17 0.045/1.0 0.045/1.0 GHz min/max 10 dBm minimum input signal ADF4219L P = 8/9 0.045/0.55 0.045/0.55 GHz min/max 10 dBm minimum input signal IF Input Sensitivity 15/0 15/0 dBm min/max Maximum Allowable Prescaler 3 Output Frequency 188 188 MHz max REFIN CHARACTERISTICS Reference Input Frequency 10/110 10/110 MHz min/max For f < 10 MHz, use dc-coupled square wave, (0 to V ). DD Reference Input Sensitivity 0.5 0.5 V p-p min AC-coupled. When dc-coupled, 0 to V max. DD REFIN Input Capacitance 10 10 pF max (CMOS compatible) REFIN Input Current 100 100 A max PHASE DETECTOR 4 Phase Detector Frequency 56 56 MHz max CHARGE PUMP I Sink/Source CP High Value 4 4 mA typ Low Value 1 1 mA typ Absolute Accuracy 1 1 % typ I Three-State Leakage Current 1 1 nA typ CP Sink and Source Current Matching 6 6 % max 0.5 V < V < V 0.5, 1% typ CP P I vs. V 55% max 0.5 V < V < V 0.5, 0.1% typ CP CP CP P I vs. Temperature 2 2 % typ V = V /2 CP CP P LOGIC INPUTS V , Input High Voltage 1.4 1.4 V min INH V , Input Low Voltage 0.6 0.6 V max INL I /I , Input Current 1 1 A max INH INL C , Input Capacitance 10 10 pF max IN Reference Input Current 100 100 A max LOGIC OUTPUTS V , Output High Voltage V 0.4 V 0.4 V min I = 1 mA OH DD DD OH V , Output Low Voltage 0.4 0.4 V max I = 1 mA OL OL POWER SUPPLIES V 1 2.6/3.3 2.6/3.3 V min/V max DD V2V1V 1 DD DD DD V 1, V2V 1/5.5 V V 1/5.5 V V min/V max P P DD DD 5 I (RF + IF) 10 10 mA max 7.1 mA typ DD 5 (RF only) 77mA 4.7 mA typ 5 (IF only) 55mA 3.4 mA typ I (I 1 + I 2) 0.6 0.6 mA typ T = 25C P P P A Low Power Sleep Mode 1 1 A typ 2 REV. 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