SA8028 Datasheet (Philips) - 2.5 GHz sigma delta fractional-N / 760 MHz IF integer frequency synthesizers

SA8028, 2.5 GHz sigma delta fractional-N / 760 MHz IF integer frequency synthesizers

The SA8028 BICMOS device integrates programmable dividers, charge pumps and phase comparators to implement phase *locked loops.

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 u

SA8028 Features

* Extremely low phase noise:

* L(f) =

* 101 dBc/Hz at 5 kHz offset at 800 MHz Low power Programmable Normal & Integral charge pump outputs: Maximum output = 10.4 mA Digital fractional spurious compensation Hardware an