GENERAL DESCRIPTION

The ADF4151 allows implementation of fractional-N or integer-N phase-locked loop (PLL) frequency synthesizers if used with an external voltage controlled oscillator (VCO), loop filter, and external reference frequency.

FEATURES

Fractional-N synthesizer and integer-N synthesizer

RF bandwidth to 3.5 GHz

3.0 V to 3.6 V power supply

1.8 V logic compatibility

Separate charge pump supply (VP) allows extended tuning voltage (up to 5.5 V) in 3 V systems

Programmable dual-modulus prescaler of 4/5 or 8/9

Programmable RF output phase

3-wire serial interface

Analog and digital lock detect

Switched bandwidth fast lock mode

Cycle slip reduction

APPLICATIONS

Wireless infrastructure (W-CDMA, TD-SCDMA, WiMax, GSM, PCS, DCS, DECT)

Test equipment

Wireless LANs, CATV equipment

Clock generation