Analog Devices Inc. ADF4355BCPZ

Description
The ADF4355 is a microwave wideband synthesizer with an integrated VCO. It allows implementation of fractionalN or integerN phaselocked 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 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 onchip registers is through a simple 3wire 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 powerdown modes.

Features
RF output frequency range: 54 MHz to 6800 MHz
FractionalN synthesizer and integerN synthesizer
High resolution 38bit 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: 3.3V
Charge pump and VCO power supplies: 5.0 V typical
Logic compatibility: 1.8V
Programmable dual modulus prescaler of 4/5 or 8/9
Programmable output power level
RF output mute function
3wire serial interface
Analog and digital lock detect

Applications
Wireless infrastructure (WCDMA, TDSCDMA, WIMAX, GSM, PCS, DCS, DECT)
Point to point/point to multipoint microwave links
Satellites/VSATs
Test equipment/instrumentation