GENERAL DESCRIPTION
The UMA1014 is a low-power universal synthesizer which has been designed for use in channelized radio communication. The IC is manufactured in bipolar technology and is designed to operate at 5 to 100 kHz channel spacing with an RF input from 50 to 1100 MHz. The channel is programmed via a standard I2C-bus. A low-power sensitive RF divider is incorporated together with a dead-zone eliminated, 3-state phase comparator.

FEATURES
• Single chip synthesizer; compatible with Philips cellular radio chipset
• Fully programmable RF divider
• I2C interface for two-line serial bus
• On-chip crystal oscillator/TCXO buffer from 3 to 16 MHz
• 16 reference division ratios allowing 5 to 100 kHz channel spacing
• 1/8 crystal frequency output
• On-chip out-of-lock indication
• Two extra VCO control outputs
• Latched synthesizer alarm output
• Status register including out-of-lock indication and power failure
• Power-down mode.

APPLICATIONS
• Cellular mobile radio (NMT, AMPS, TACS)
• Private mobile radio (PMR)
• Cordless telephones.