a Dual RF/IF PLL Frequency Synthesizers ADF4210/ADF4211/ADF4212/ADF4213 GENERAL DESCRIPTION FEATURES The ADF4210/ADF4211/ADF4212/ADF4213 is a dual frequency ADF4210: 550 MHz/1.2 GHz synthesizer that can be used to implement local oscillators (LO) ADF4211: 550 MHz/2.0 GHz in the upconversion and downconversion sections of wireless ADF4212: 1.0 GHz/2.7 GHz receivers and transmitters. They can provide the LO for both ADF4213: 1.0 GHz/3 GHz the RF and IF sections. They consist of a low-noise digital PFD 2.7 V to 5.5 V Power Supply (Phase Frequency Detector), a precision charge pump, a pro- Separate Charge Pump Supply (V ) Allows Extended P grammable reference divider, programmable A and B Counters Tuning Voltage in 3 V Systems and a dual-modulus prescaler (P/P + 1). The A (6-bit) and B Programmable Dual Modulus Prescaler (12-bit) counters, in conjunction with the dual modulus prescaler RF and IF: 8/9, 16/17, 32/33, 64/65 (P/P + 1), implement an N divider (N = BP + A). In addition, Programmable Charge Pump Currents the 14-bit reference counter (R Counter), allows selectable 3-Wire Serial Interface REFIN frequencies at the PFD input. A complete PLL (Phase- Analog and Digital Lock Detect Locked Loop) can be implemented if the synthesizer is used with Fastlock Mode an external loop lter and VCO (Voltage Controlled Oscillators). Power-Down Mode Control of all the on-chip registers is via a simple 3-wire interface. APPLICATIONS The devices operate with a power supply ranging from 2.7 V to Base Stations for Wireless Radio (GSM, PCS, DCS, 5 V and can be powered down when not in use. CDMA, WCDMA) Wireless Handsets (GSM, PCS, DCS, CDMA, WCDMA) Wireless LANS Communications Test Equipment CATV Equipment FUNCTIONAL BLOCK DIAGRAM V 1V 2V1V 2 R DD DD P P SET 12-BIT IF REFERENCE PHASE B-COUNTER COMPARATOR IF IN IF PRESCALER CHARGE CP IF PUMP 8-BIT IF A-COUNTER IF CURRENT SETTING IF LOCK DETECT IFCP3 IFCP2 IFCP1 REF OSCILLATOR IN 14-BIT IF R-COUNTER OUTPUT MUXOUT CLOCK MUX 24-BIT DATA SDOUT DATA REGISTER LE RFCP3 RFCP2 RFCP1 14-BIT RF R-COUNTER RF LOCK IF CURRENT DETECT SETTING 12-BIT RF B-COUNTER CHARGE CP RF RF PUMP IN RF PHASE PRESCALER COMPARATOR REFERENCE 6-BIT RF R A-COUNTER ADF4210/ADF4211/ SET ADF4212/ADF4213 FL FL SWITCH O O DGND AGND DGND DGND AGND RF RF IF IF IF REV. A 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., 20011 ADF4210/ADF4211/ADF4212/ADF4213SPECIFICATIONS (V 1 = V 2 = 3 V 10%, 5 V 10% V 1, V 2 V 1, V 2 6.0 V AGND = DGND = AGND = DGND = 0 V R = 2.7 k dBm to 50 DD DD DD DD P P RF RF IF IF SET T = T to T unless otherwise noted.) A MIN MAX 2 Parameter B Version B Chips Unit Test Conditions/Comments RF/IF CHARACTERISTICS (3 V) RF Input Frequency (RF ) See Figure 3 for Input Circuit. IN ADF4210 0.1/1.2 0.1/1.2 GHz min/max Use a square wave for frequencies lower than F . MIN ADF4211 0.1/2.0 0.1/2.0 GHz min/max ADF4212 0.15/2.7 0.15/2.7 GHz min/max ADF4213 0.2/3.0 0.2/3.0 GHz min/max RF Input Sensitivity 10/0 10/0 dBm min/max IF Input Frequency (IF ) IN ADF4210 60/550 60/550 MHz min/max ADF4211 60/550 60/550 MHz min/max ADF4212 0.06/1.0 0.06/1.0 GHz min/max ADF4213 0.06/1.0 0.06/1.0 GHz min/max IF Input Sensitivity 10/0 10/0 dBm min/max Maximum Allowable 3 Prescaler Output Frequency 165 165 MHz max RF/IF CHARACTERISTICS (5 V) RF Input Frequency (RF ) See Figure 3 for Input Circuit. IN ADF4210 0.18/1.2 0.18/1.2 GHz min/max Use a square wave for frequencies lower than F . MIN ADF4211 0.18/2.0 0.18/2.0 GHz min/max ADF4212 0.2/2.3 0.2/2.3 GHz min/max ADF4213 0.2/2.5 0.2/2.5 GHz min/max RF Input Sensitivity 5/0 5/0 dBm min/max IF Input Frequency (IF ) IN ADF4210 100/550 100/550 MHz min/max ADF4211 100/550 100/550 MHz min/max ADF4212 0.1/1.0 0.1/1.0 GHz min/max ADF4213 0.1/1.0 0.1/1.0 GHz min/max IF Input Sensitivity 5/0 5/0 dBm min/max Maximum Allowable 3 Prescaler Output Frequency 200 200 MHz max REFIN CHARACTERISTICS See Figure 2 for Input Circuit. REFIN Input Frequency 0/115 0/115 MHz min/max For F < 5 MHz, use dc-coupled square wave (0 to V ). DD 4 REFIN Input Sensitivity 5/0 5/0 dBm min/max AC-Coupled. When dc-coupled, 0 to V max DD (CMOS-Compatible) REFIN Input Capacitance 10 10 pF max REFIN Input Current 100 100 A max PHASE DETECTOR 5 Phase Detector Frequency 55 55 MHz max CHARGE PUMP I Sink/Source Programmable: See Table V CP High Value 5 5 mA typ With R = 2.7 k SET Low Value 625 625 A typ Absolute Accuracy 3 3 % typ With R = 2.7 k SET R Range 1.5/5.6 1.5/5.6 k , min/max SET I Three-State Leakage Current 1 1 nA typ CP Sink and Source Current Matching 2 2 % typ 0.5 V V V 0.5 V CP P I vs. V 2 2 % typ 0.5 V V V 0.5 V CP CP CP P I vs. Temperature 2 2 % typ V = V /2 CP CP P LOGIC INPUTS V , Input High Voltage 0.8 DV 0.8 DV V min INH DD DD V , Input Low Voltage 0.2 DV 0.2 DV V max INL DD DD I /I , Input Current 1 1 A max INH INL C , Input Capacitance 10 10 pF max IN LOGIC OUTPUTS V , Output High Voltage DV 0.4 DV 0.4 V min I = 500 A OH DD DD OH V , Output Low Voltage 0.4 0.4 V max I = 500 A OL OL 2 REV. A