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Low Power Dual RF/IF Integer-N PLL

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Part Details
  • Low Phase Noise
  • Separate Vp allows extended tuning range
  • 2.6V to 3.3V single Power supply
  • TSSOP and chip scale package available
  • Selectable dual modulus prescaler values
  • Programmable charge pump currents
  • Low current consumption (7.0mA
    total Idd)
  • 1.8V Logic compatibility
  • ADF4219L is a Phase noise upgrade to LMX2370
Additional Details
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The ADF4217L Synthesizer IC when combined with a VCO and loop filter forms a complete phased locked loop (PLL). This solution from ADI creates state-of-the-art LO's (local oscillator) for the upconversion and downconversion of RF signals in Wireless applications. The PLL 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 ADF4217L and ADF4218L are low current consumption improvements on the released ADF4217 and ADF4218 and are available in TSSOP and MLF (LFCSP). The ADF4219L is a Phase Noise upgrade & pin compatible to the LMX2370 from National Semiconductor and is available in both TSSOP and MLF (Cason).

Sales Collateral:

  • Full data sheet with performance graphs.
  • Press release, February 2002.
  • Circuit simulation included in ADISimPLL, released February 2002.
  • Evaluation board and software available.
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