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UMA1022M Datasheet Low Cost Dual Frequency Synthesizer For Radio Telephones

Manufacturer: NXP Semiconductors

Overview: INTEGRATED CIRCUITS DATA SHEET UMA1022M Low cost dual frequency synthesizer for radio telephones Product specification Supersedes data of 1998 May 15 File under Integrated Circuits, IC17 1998 Dec 09 Philips.

General Description

The UMA1022M BICMOS device integrates prescalers, programmable dividers, a crystal oscillator/buffer and phase comparators to implement two phase-locked loops.

The device is designed to operate from 3 NiCd or a single LiIon cell in pocket phones, or from an external 3 V supply.

UMA1022M The synthesizers operate at RF input frequencies up to 2.1 GHz and 550 MHz.

Key Features

  • Low phase noise.
  • Low current from 3 V supply.
  • Fully programmable dividers.
  • 3-line serial interface bus.
  • Input reference buffer configurable as an oscillator with external crystal resonator.
  • Wide compliance voltage charge pump outputs.
  • Two power-down input control pins.

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