OBSOLETE PRODUCT — ADF4219L:  Low Power dual RF/IF Integer-N PLL

The ADF4219L 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 Available: Full data sheet with performance graphs, press release, circuit simulation included in ADISimPLL Synthesizer released on February 1, 2002, evaluation board and software available.

ADF4219L:  Low Power dual RF/IF Integer-N PLL

Product Description

The ADF4219L 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 Available: Full data sheet with performance graphs, press release, circuit simulation included in ADISimPLL Synthesizer released on February 1, 2002, evaluation board and software available.

REPLACEMENT PARTS

Rochester Electronics is the only authorized source of Analog Devices' products that have previously been discontinued or have become obsolete. Product availability should be checked directly with Rochester Electronics.

Specifications

Max RF Input (MHz) 3000MHz
RF Prescaler 32/33,64/65
Max REFin Frequency 110Hz
Normalised Phase Noise 90dBc/Hz
Isupply Pos (max) 7mA
Package 20-Lead TSSOP,24-Lead BCC
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