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UMA1019AM - Low-voltage frequency synthesizer for radio telephones

General Description

The UMA1019AM BICMOS device integrates prescalers, a programmable divider, and phase comparator to implement a phase-locked loop.

Key Features

  • Low current from 3 V supply.
  • Fully programmable RF divider.
  • 3-line serial interface bus.
  • Independent fully programmable reference divider, driven from external crystal oscillator.
  • Dual phase detector outputs to allow fast frequency switching.
  • Dual power-down modes.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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INTEGRATED CIRCUITS DATA SHEET UMA1019AM Low-voltage frequency synthesizer for radio telephones Product specification Supersedes data of November 1994 File under Integrated Circuits, IC03 1995 Jul 07 Philips Semiconductors Product specification Low-voltage frequency synthesizer for radio telephones FEATURES • Low current from 3 V supply • Fully programmable RF divider • 3-line serial interface bus • Independent fully programmable reference divider, driven from external crystal oscillator • Dual phase detector outputs to allow fast frequency switching • Dual power-down modes. APPLICATIONS • 1 to 1.7 GHz mobile telephones • Portable battery-powered radio equipment.