ADF4156BCPZ

ADF4156 is a 6.2GHz fractional-N frequency synthesizer that implements 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, and a programmable reference divider. There is a Σ-Δ based fractional interpolator to allow programmable fractional-N division. The INT, FRAC, and MOD registers define an overall N divider (N = (INT + (FRAC/MOD)). The RF output phase is programmable for applications that require a particular phase relationship between the output and the reference. It also features cycle slip reduction circuitry, leading to faster lock times without the need for modifications to the loop filter. It is used in application such as CATV equipment, base stations for mobile radio (WiMAX, GSM, PCS, DCS, SuperCell 3G, CDMA, WCDMA), wireless handsets (GSM, PCS, DCS, CDMA, WCDMA), wireless LANs, PMR, communications test equipment etc.

• Power supply range is 2.7V to 3.3V
• Separate VP pin allows extended tuning voltage
• Programmable fractional modulus, programmable charge-pump currents
• 3-wire serial interface, digital lock detect, power-down mode
• Programmable RF output phase, cycle slip reduction for faster lock times
• Loop filter design possible with ADIsimPLL
• Pin compatible with ADF4110/ADF4111/ADF4112/ADF4113, ADF4106, ADF4153, and ADF4154
• Normalized 1/f noise is -110dBc/Hz typical
• Operating temperature is -40°C to +85°C
• Package style is 20-lead LFCSP-WQ

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party