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ADF4355

Analog Devices
Part Number ADF4355
Manufacturer Analog Devices
Description Microwave Wideband Synthesizer
Published Mar 7, 2017
Detailed Description Data Sheet Microwave Wideband Synthesizer with Integrated VCO ADF4355 FEATURES GENERAL DESCRIPTION RF output frequen...
Datasheet PDF File ADF4355 PDF File

ADF4355
ADF4355

Overview
Data Sheet Microwave Wideband Synthesizer with Integrated VCO ADF4355 FEATURES GENERAL DESCRIPTION RF output frequency range: 54 MHz to 6800 MHz Fractional-N synthesizer and integer-N synthesizer High resolution 38-bit modulus Low phase noise, voltage controlled oscillator (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.
0 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 The ADF4355 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 6800 MHz.
The ADF4355 has an integrated 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 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 also contains hardware and software power-down modes.
FUNCTIONAL BLOCK DIAGRAM CE AVDD DVDD VP RSET VVCO VRF AVDD REFINA REFIN B CLK DATA LE ×2 DOUBLER 10-BIT R COUNTER ÷2 DIVIDER DATA REGISTER FUNCTION LATCH INTEGER FRACTION MODULUS REGISTER REGISTER REG...


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