小数N /整数N分频PLL合成器 Fractional-N/Integer-N PLL Synthesizer
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
