LA8161V AGC Amplifier And Pre Amplifier

The LC72146 is a Phase-Locked Loop (PLL) Frequency Synthesizer LSI circuit designed for electronic tuning in car stereo systems. This component facilitates the development of high-performance, multifunctional electronic tuning systems across VHF, MW, and LW bands. It is manufactured by Sanyo Semiconductor Corporation.

The LC72146 operates by utilizing a phase-locked loop architecture, which allows it to maintain a stable output frequency that is locked to a reference frequency. This is particularly beneficial for applications requiring precise frequency control, such as in car audio systems where tuning accuracy is essential for optimal reception of radio signals.

The device integrates several functional blocks, including a frequency divider, a phase comparator, and a voltage-controlled oscillator (VCO). The frequency divider reduces the input frequency to a manageable level for the phase comparator, which then compares the phase of the divided frequency with the reference frequency. Any phase difference is converted into a control voltage that adjusts the VCO, thus ensuring that the output frequency remains locked to the desired channel frequency.

The LC72146 supports various modulation schemes and can be configured for different frequency bands, making it versatile for use in both commercial and custom audio applications. Its design allows for easy integration with microcontrollers or other digital devices, facilitating the development of sophisticated tuning interfaces that can include features such as automatic frequency scanning, preset station memory, and digital display output.

Overall, the LC72146 is a robust solution for electronic tuning in automotive audio systems, providing reliable performance and flexibility for a wide range of tuning applications.The LC72146 is a PLL Frequency Synthesizer LSI circuit for electronic tuning in car stereo systems. The LC72146 supports the construction of high-performance, multi- functional electronic tuning systems for the VHF MW, and LW bands. By Sanyo Semiconductor Corporation 🔗 External reference