ADF4117BRUZ

ANALOG DEVICES  ADF4117BRUZ  芯片, 频率合成器, 1.2GHZ, TSSOP-16

The is a Frequency Synthesizer which can be used to implement local oscillators in the up and down conversion sections of wireless receivers and transmitters. They consist of a low-noise digital PFD Phase Frequency Detector, a precision charge pump, a programmable reference divider, programmable A and B counters and a dual-modulus prescaler P/P+1. The A 5-bit and B 13-bit counters, in conjunction with the dual modulus prescaler P/P+1, implement an N divider N= BP+A. In addition, the 14-bit reference counter R Counter, allows selectable REFIN frequencies at the PFD input. A complete PLL Phase-Locked Loop can be implemented if the synthesizer is used with an external loop filter and VCO Voltage Controlled Oscillator. Control of all the on-chip registers is via a simple 3-wire interface. The device operates with a 2.7V ±10% or 5V ±10% power supply and can be powered when not in use.

.

Separate Vp allows extended tuning voltage in 3V systems

.

3-wire serial interface

.

Digital lock detect

.

Power down mode

.

Fastlock mode