Peregrine Semiconductor has added to its range of phase-locked loop (PLL) frequency synthesisers for the military, broadband cable infrastructure, and wireless infrastructure markets.

The PE33361 Integer-N PLL and the PE33631 Delta-Sigma Modulated (DSM) Fractional-N PLL are the first devices to be completely developed through Peregrine’s recently announced European design and manufacturing flow.

The PLL devices are designed to provide frequency synthesis up to 3.5GHz with -216dBc/Hz phase noise (normalised), and power consumption of 40mA (PE33631) and 45mA (PE33361) at 3.3V.

The PE33361 PLL is programmable through serial, parallel and direct mode access; the PE33631 PLL is programmable through serial and direct mode access.

Electro-Static Discharge (ESD) tolerance is 1000 V HBM.

The devices feature a ÷10/11 dual modulus prescaler which enables high divide ratios in applications requiring low phase-detector comparison frequencies.

An internal phase-frequency detector generates up and down frequency control signals, and provides a phase comparator and phase counter, the values of which are programmable.

The PE33631 adds a delta-sigma modulator which maintains fine frequency resolution while eliminating fractional spurs in the output.

The PE33361 is packaged in the 48-lead 7x7mm QFN, and the PE33631 is packaged in the 64-lead 9x9mm QFN.