LC72137 Overview
EN5743 CMOS IC LC72137, 72137M PLL Frequency Synthesizer for Electronic Tuning Overview The LC72137 and LC72137M are PLL frequency synthesizers for use in radio/cassette players. They allow high-performance AM/FM tuners to be implemented easily.
LC72137 Key Features
- High-speed programmable frequency divider
- FMIN: 10 to 160 MHz
- Pulse swallower (divide-by-two prescaler built in)
- AMIN: 2 to 40 MHz
- Pulse swallower 0.5 to 10 MHz
- Direct division
- IF counter IFIN: 0.4 to 12 MHz
- For use as an AM/FM IF counter
- Reference frequency
- Phase parator