Datasheet Summary
Ordering number:ENN4160A
CMOS IC
LC7153, 7153M
Universal Dual-PLL Frequency Synthesizers
Overview
The LC7153 and LC7153M are universal dual-PLL frequency synthesizers for use in cordless telephone applications in the USA, South Korea and Australia, and satellite broadcast tuners in the USA and Europe. The LC7153 and LC7153M both have two PLLs with a 16-bit programmable divider to generate a 1.5 to 160MHz local-oscillator frequency, and a phase detector. They also have a dual charge pump and fast lock-up circuitry for rapid PLL locking when changing frequency, an unlock indication output and an unmitted output under external control. The PLLs share a 14-bit divider to generate a 320Hz...