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UMA1018M Datasheet

Part Number UMA1018M
Manufacturers NXP
Logo NXP
Description Low-voltage dual frequency synthesizer for radio telephones
Datasheet UMA1018M DatasheetUMA1018M Datasheet (PDF)

INTEGRATED CIRCUITS DATA SHEET UMA1018M Low-voltage dual frequency synthesizer for radio telephones Product specification Supersedes data of November 1994 File under Integrated Circuits, IC03 1995 Jun 27 Philips Semiconductors Product specification Low-voltage dual frequency synthesizer for radio telephones FEATURES • Low current from 3 V supply • Fully programmable RF divider • 3-line serial interface bus • Second synthesizer to control first IF or offset loop frequency • Independent fully p.

  UMA1018M   UMA1018M






Low-voltage dual frequency synthesizer for radio telephones

INTEGRATED CIRCUITS DATA SHEET UMA1018M Low-voltage dual frequency synthesizer for radio telephones Product specification Supersedes data of November 1994 File under Integrated Circuits, IC03 1995 Jun 27 Philips Semiconductors Product specification Low-voltage dual frequency synthesizer for radio telephones FEATURES • Low current from 3 V supply • Fully programmable RF divider • 3-line serial interface bus • Second synthesizer to control first IF or offset loop frequency • Independent fully programmable reference dividers for each loop, driven from external crystal oscillator • Dual phase detector outputs to allow fast frequency switching • Integrated digital-to-analog converter • Dual power-down modes. APPLICATIONS • 900 MHz mobile telephones • Portable battery-powered radio equipment. GENERAL DESCRIPTION The UMA1018M BICMOS device integrates prescalers, programmable dividers, and phase comparators to implement two phase-locked loops. The device is designed to operate from 3 NiCd cells, in pocket phones, with low current and nominal 5 V supplies. QUICK REFERENCE DATA SYMBOL VCC, VDD ICC + IDD PARAMETER supply voltage principal synthesizer supply current principal and auxiliary synthesizer supply current ICCPD, IDDPD current in power-down mode per supply fVCO fAI fXTAL fPPC fAPC Tamb principal input frequency auxiliary input frequency crystal reference input frequency principal phase comparator frequency auxiliary phase comparator frequency operating ambient temperature CO.


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