ADF4153ABRUZ

ADF4153 is a 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. A sigma-delta (Σ-Δ) based fractional interpolator allows programmable fractional-N division. The INT, FRAC, and MOD registers define an overall N divider (N = (INT + (FRAC/MOD). In addition, the 4bit 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). It is used in applications such as CATV equipment, base stations for mobile radio (GSM, PCS, DCS, WiMAX, SuperCell 3G, CDMA, W-CDMA), wireless handsets (GSM, PCS, DCS, CDMA, W-CDMA), wireless LANs, PMR, communications test equipment.

• RF bandwidth to 4GHz
• Power supply range from 2.7V to 3.3V
• Separate VP allows extended tuning voltage
• 3-wire serial interface, analogue and digital lock detect
• Power-down mode, consistent RF output phase
• Loop filter design possible with ADIsimPLL
• Normalized phase noise floor -223dBc/Hz typical at (AVDD = DVDD = SDVDD = 2.7V to 3.3V)
• Operating temperature is -40°C to +85°C
• Package style is 20-lead lead frame chip scale [LFCSP-WQ]

บันทึก

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