ADF4002BCPZ

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1. DESCRIPTION

The ADF4002BCPZ frequency synthesizer is 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 charge pump, a programmable reference divider, and programmable N divider. The 14-bit reference counter (R counter) allows selectable REFIN frequencies at the PFD input. A complete phase-locked loop (PLL) can be implemented if the synthesizer is used with an external loop filter and voltage controlled oscillator (VCO). In addition, by programming R and N to 1, the device can be used as a standalone PFD and charge pump.

2. FEATURES

    1. 400 MHz bandwidth

    2. 2.7 V to 3.3 V power supply

    3. Separate charge pump supply (VP) allows extended tuning voltage in 3 V systems

    4. Programmable charge pump currents

    5. 3-wire serial interface

    6. Analog and digital lock detect

    7. Hardware and software power-down mode

    8. 104 MHz phase detector

3. APPLICATIONS

    1. Clock conditioning

    2. Clock generation

    3. IF LO generation