Fractional-N Frequency Synthesizer

The ADF4154 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 - 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 key feature of the ADF4154 is the fast-lock mode with a builtin Timer The user CAN program a predetermined count-down time value so that the PLL will remain in wide bandwidth mode, instead of having to control this time externally.
Control of all on-chip Registers is via a simple 3-wire Interface 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.
By Analog Devices, Inc.
ADF4154 's PackagesADF4154 's pdf datasheet
ADF4154BCP LFCSP
ADF4154BCP-REEL LFCSP
ADF4154BCP-REEL7 LFCSP
ADF4154BCPZ LFCSP
ADF4154BCPZ-RL LFCSP
ADF4154BCPZ-RL7 LFCSP
ADF4154BRU TSSOP
ADF4154BRU-REEL TSSOP
ADF4154BRU-REEL7 TSSOP
ADF4154BRUZ TSSOP
ADF4154BRUZ-RL TSSOP
ADF4154BRUZ-RL7 TSSOP

ADF4154 pdf datasheet download


ADF4154 Pinout, Pinouts
ADF4154 pinout,Pin out
This is one package pinout of ADF4154,If you need more pinouts please download ADF4154's pdf datasheet.

ADF4154 Application circuits
ADF4154 circuits
This is one application circuit of ADF4154,If you need more circuits,please download ADF4154's pdf datasheet.


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