LC72134M Datasheet (Sanyo Semicon Device) - Dual PLL Frequency Synthesizer

LC72134M, Dual PLL Frequency Synthesizer

Pin XIN XOUT Pin No.

1 24 Type Function Equivalent circuit Xtal * Crystal oscillator element connections (4.5 or 7.2 MHz) FMINa 18 Main PLL local oscillator signal input * FMINa is selected when DVS in the serial data is set to 1.

* Input frequency: 10 to 160 MHz <

Ordering number : EN5814 CMOS IC LC72134M Dual PLL Frequency Synthesizer for FM Tuner Systems Overview The LC72134M is a dual PLL frequency synthesizer product that integrates on a single chip both an AM/FM audio broadcast reception PLL circuit (main PLL) and a dedicated FM multiplex reception PLL circuit (sub PLL).

Since the main PLL circuit is equivalent to the LC72135M, software developed for that product can be used with this chip.

The sub-PLL circuit can be controlled independently.

Fun

LC72134M Features

* mp output

* PLL charge pump output A high level is output when the frequency of the local oscillator signal divided by N is higher than the reference frequency, and a low level is output when that frequency is lower. This pin goes to the high-impedance state when the frequencies match. AIN