INTEGRATED CIRCUITS
DATA SHEET
UMA1021AM Low-
voltage frequency synthesizer for radio telephones
Product specification Supersedes data of 1998 Mar 03 File under Integrated Circuits, IC17 1998 Nov 19
Philips Semiconductors
Product specification
Low-
voltage frequency synthesizer for radio telephones
FEATURES • Low phase noise • Low current from 3 V supply • Fully programmable main divider • 3-line serial interface bus • Independent fully programmable reference divider, driven from external crystal oscillator • Hard and soft power-down control.
APPLICATIONS • 900 MHz and 2 GHz mobile telephones • Portable battery-powered radio equipment.
GENERAL DESCRIPTION The UMA1021AM BI
CMOS device integra...