BU2624AF

PLL频率合成调谐器 PLL frequency synthesizer for tuners

The is a PLL frequency synthesizer IC designed for use in car stereos, high-fidelity audio systems, and CD radio cassettes. Featuring low current dissipation, low superfluous radiation, two frequency measurement counter systems, and two phase comparison outputs, this chip is ideal for high-performance multi-band systems.

Features

1 Built-in high-speed prescaler can divide 130MHzVCO.

2 Low current dissipation during operation: 6.0mA, PLL OFF: 300µA Typ.

3 Seven standard frequencies: 50kHz, 25kHz,12.5kHz, 10kHz, 9kHz, 5kHz, and 1kHz.

4 Two counters for intermediate frequency detection

5 Unlock detection circuit

6 Five output ports open drain

7 SD input port

8 Two charge pump outputs

9 Serial data input CE, CK, DA

10 Control of phase comparison output