ADF4212LBRUZ-RL7

ADF4212L is a dual frequency synthesizer that can be used to implement local oscillators (LO) in the up-conversion and down-conversion sections of wireless receivers and transmitters. It can provide the LO for both the RF and IF sections. It consists of a low noise digital phase frequency detector (PFD), a precision charge pump, a programmable reference divider, programmable A and B counters, and a dual modulus prescaler (P/P + 1). The A (6bit) and B (12bit) counters, in conjunction with the dual modulus prescaler (P/P + 1), implement an N divider (N = BP + A). In addition, the 15-bit reference counter (R counter) allows selectable REFIN frequencies at the PFD input. It is widely used in application such as wireless handsets (GSM, PCS, DCS, DSC1800, CDMA, WCDMA), base stations for wireless radio (GSM, PCS, DCS, CDMA, WCDMA), wireless LANS, cable TV tuners (CATV), communications test equipment etc.

• Supply current is 7.5mA typical
• Power supply range is 2.7V to 3.3V
• Separate VP allows extended tuning voltage
• Programmable dual modulus prescaler RF and IF: 8/9, 16/17, 32/33, 64/65
• Programmable charge pump currents, 3-wire serial interface
• Analog and digital lock detect, fast lock mode, power-down mode
• RF phase noise floor is -170dBc/Hz typ at (25KHz PFD frequency)
• Low power sleep mode 1μA typ at (VDD1 = VDD2 = 2.7V to 3.3V)
• Operating temperature is -40°C to +85°C
• Package style is 20-lead TSSOP

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