Analog Devices ADF4153BCPZ

Clock Generator/Frequency Synthesizer /PLL

Clock Generator 10MHz to 4GHz Input 20-Pin LFCSP EP Tray

Pll, Frequency Synthesis, 4Ghz, Lfcsp-Ep; |Analog Devices, Inc. ADF4153BCPZ

The ADF4153 is a fractional-N frequency synthesizer that implements local oscillators in the up conversion and down conversion sections of wireless receivers and transmitters. It consists of a low noise digital phase frequency detector (PFD), a precision charge pump, and a programmable reference divider. There is a \Sigma -\Lambda based fractional interpolator to allow programmable fractional-N division. The INT, FRAC, and MOD registers define an overall N divider (N = (INT + (FRAC/MOD))). In addition, the 4-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 a voltage controlled oscillator (VCO). A simple 3-wire interface controls all on-chip registers. The device operates with a power supply ranging from 2.7 V to 3.3 V and can be powered down when not in use.