ADF4217L

过期

Low Power Dual RF/IF Integer-N PLL

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概述

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

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.