SA7016

The SA7016 BICMOS device integrates programmable dividers, charge pumps and a phase comparator to implement a
phase-locked loop. The device is designed to operate from 3 NiCd cells, in pocket phones, with low current and nominal 3 V supplies.

The synthesizer operates at VCO input frequencies up to 1.3 GHz. The synthesizer has fully programmable main and reference dividers. All divider ratios are supplied via a 3-wire serial programming bus.

Separate power and ground pins are provided to the analog and digital circuits. The ground leads should be externally short-circuited to prevent large currents flowing across the die and thus causing damage. V_DDCP must be greater than or equal to V_DD.

The charge pump current (gain) is set by an external resistance at the RSET pin. Only passive loop filters could be used; the charge pump operates within a wide voltage compliance range to provide a wider tuning range.