UMA1022M Overview
The UMA1022M BICMOS device integrates prescalers, programmable dividers, a crystal oscillator/buffer and phase parators 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.
UMA1022M 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 pliance voltage charge pump outputs
- Two power-down input control pins