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ADF4355-2BCPZ 数据表(PDF) 1 Page - Analog Devices |
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ADF4355-2BCPZ 数据表(HTML) 1 Page - Analog Devices |
1 / 38 page Microwave Wideband Synthesizer with Integrated VCO Data Sheet ADF4355-2 Rev. B Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 ©2014–2016 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com FEATURES RF output frequency range: 54 MHz to 4400 MHz Fractional-N synthesizer and integer-N synthesizer High resolution 38-bit modulus Low phase noise, VCO Programmable divide by 1, 2, 4, 8, 16, 32, or 64 output Analog and digital power supplies: 3.3 V Charge pump and VCO power supplies: 5 V typical Logic compatibility: 1.8 V Programmable dual modulus prescaler of 4/5 or 8/9 Programmable output power level RF output mute function 3-wire serial interface Analog and digital lock detect APPLICATIONS Wireless infrastructure (W-CDMA, TD-SCDMA, WiMAX, GSM, PCS, DCS, DECT) Point to point/point to multipoint microwave links Satellites/VSATs Test equipment/instrumentation Clock generation GENERAL DESCRIPTION The ADF4355-2 allows implementation of fractional-N or integer-N phase-locked loop (PLL) frequency synthesizers when used with an external loop filter and an external reference frequency. A series of frequency dividers permits operation from 54 MHz to 4400 MHz. The ADF4355-2 has an integrated voltage controlled oscillator (VCO) with a fundamental output frequency ranging from 3400 MHz to 6800 MHz. In addition, the VCO frequency is connected to divide by 1, 2, 4, 8, 16, 32, or 64 circuits that allow the user to generate radio frequency (RF) output frequencies as low as 54 MHz. For applications that require isolation, the RF output stage can be muted. The mute function is both pin and software controllable. Control of all on-chip registers is through a simple 3-wire interface. The ADF4355-2 operates with analog and digital power supplies, ranging from 3.15 V to 3.45 V, with charge pump and VCO supplies from 4.75 V to 5.25 V. The ADF4355-2 also contains hardware and software power-down modes. FUNCTIONAL BLOCK DIAGRAM MUXOUT CPOUT CREG2 VBIAS REFIN CLK DATA LE AV CREG1 DVDD DD VP AGND CE CPGND SDGND AGNDVCO RSET VVCO VTUNE VREF RFOUTA+ RFOUTA– RFOUTB+ RFOUTB– VCO CORE PHASE COMPARATOR CHARGE PUMP OUTPUT STAGE OUTPUT STAGE PDBRF MULTIPLEXER 10-BIT R COUNTER ÷2 DIVIDER ×2 DOUBLER FUNCTION LATCH DATA REGISTER INTEGER REG N COUNTER FRACTION REG THIRD-ORDER FRACTIONAL INTERPOLATOR MODULUS REG MULTIPLEXER LOCK DETECT ÷ 1/2/4/8 16/32/64 ADF4355-2 REFINA B VRF AGNDRF VREGVCO AVDD Figure 1. |
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类似说明 - ADF4355-2BCPZ |
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