LC7219集成电路（IC）的应用特定时钟/定时规格书PDF中文资料

Overview

The LC7219 and LC7219M are high-performance, phaselocked loop (PLL) frequency synthesizer ICs that operate over the AM and FM radio wavebands. They feature excellent frequency tracking, making them ideal as reference frequency sources for use in AM/FM tuners, television and audio-video equipment, and high-quality car-stereo applications.

The LC7219 and LC7219M operate from a 5 V supply and are available in 24-pin DIPs and 24-pin MFPs, respectively.

Features

• Programmable divider.

• General-purpose universal counter.

(The IF signal count must be used together with the SD

(station detect) signal from IF-IC).

• Unlock detector.

• 8 Hz real-time clock output.

• Ten selectable reference frequencies.

• 400 kHz microcontroller system-clock output.

• Swallow counter.

• Shift register.

• 5 V supply.

• 24-pin DIP and 24-pin MFP.