GENERAL DESCRIPTION

The SA8027 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.

FEATURES

• Low phase noise

• Low power

• Fully programmable main and auxiliary dividers

• Programmable Normal & Integral charge pumps outputs

• Fast Locking Adaptive mode design

• Internal fractional spurious compensation

• Hardware and software power down

• Split supply for VDD and VDDCP

• Loop filter bandwidth programmability

APPLICATIONS

• 500 to 2500 MHz wireless equipment

• Cellular phones (all standards)

• WLAN

• Portable battery-powered radio equipment.