UMA1019AM
Overview
- 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. GENERAL DESCRIPTION The UMA1019AM BICMOS device integrates prescalers, a programmable divider, and phase comparator to implement a phase-locked loop. QUICK REFERENCE DATA SYMBOL VCC, VDD ICC + IDD ICCPD, IDDPD fVCO fxtal fPC Tamb PARAMETER supply voltage supply current current in power-down mode per supply RF input frequency crystal reference input frequency phase comparator frequency operating ambient temperature CONDITIONS VCC ≥ VDD MIN. 2.7 - - 1000 3 - -30
