ADF4107BRUZ

The ADF4107BRUZ is a Frequency Synthesizer that can be used to implement local oscillators in the up-conversion and down-conversion sections of wireless receivers and transmitters. It consists 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 (6-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). Its very high bandwidth means that frequency doublers can be eliminated in many high frequency systems, simplifying system architecture and reducing cost.

• Separate charge pump supply (VP) allows extended tuning voltage in 3V systems
• Programmable dual-modulus prescaler 8/9, 16/17, 32/33, 64/65
• Programmable charge pump currents
• Programmable anti backlash pulse width
• 3-wire serial interface
• Analog and digital lock detect
• Hardware and software power-down mode