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