GENERAL DESCRIPTION
The ADF4196 frequency synthesizer can be used to implement local oscillators (LO) in the upconversion and downconversion sections of wireless receivers and transmitters. Its architecture is specifically designed to meet the GSM/EDGE lock time requirements for base stations, and the fast settling feature makes the ADF4196 suitable for pulse Doppler radar applications.

FEATURES
   Fast settling, fractional-N PLL architecture
   Single PLL replaces ping-pong synthesizers
   Frequency hop across GSM band in 5 μs with phase settled
      within 20 μs
   1 degree rms phase error at 4 GHz RF output
   Digitally programmable output phase
   RF input range up to 6 GHz
   3-wire serial interface
   On-chip, low noise differential amplifier
   Phase noise figure of merit: −216 dBc/Hz

APPLICATIONS
   GSM/EDGE base stations
   PHS base stations
   Pulse Doppler radar
   Instrumentation and test equipment
   Beam-forming/phased array systems