GENERAL DESCRIPTION
The ADF4113HV is an integer-N frequency synthesizer with a high voltage charge pump (15 V). The synthesizer is designed for use with voltage controlled oscillators (VCOs) that have high tuning voltages (up to 15 V). Active loop filters are often used to achieve high tuning voltages, but the ADF4113HV charge pump can drive a high voltage VCO directly with a passive-loop filter. The ADF4113HV can be used to implement local oscillators in the upconversion and downconversion sections of wireless receivers and transmitters. It consists of a low noise digital phase frequency detector (PFD), a precision high voltage charge pump, a programmable reference divider, programmable A and B counters, and a dual-modulus prescaler (P/P + 1).

FEATURES
   High voltage charge pump (15 V)
   2.7 V to 5.5 V power supply
   200 MHz to 4.0 GHz frequency range
   Pin compatible with ADF4110, ADF4111, ADF4112, ADF4113
      ADF4106, and ADF4002 synthesizers
   Two selectable charge pump currents
   Digital lock detect
   Power-down mode
   Loop filter design possible with ADIsimPLL™

APPLICATIONS
   Applications using high voltage VCOs
   IF/RF local oscillator (LO) generation in base stations
   Point-to-point radio LO generation
   Clock for analog-to-digital and digital-to-analog converters
   Wireless LANs, PMR
   Communications test equipment