LA8161V AGC Amplifier And Pre Amplifier
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
Related Circuits
This circuit utilizes a 555 timer integrated circuit (IC) as an alarm system designed to deter theft of luggage and prevent unauthorized entry into homes. The alarm is activated when a thin wire, typically as fine as a human...
This stereo amplifier is designed for automotive applications and can deliver up to 2 x 22W using a single TDA1557Q or TDA1553Q from Philips. The stereo amplifier circuit utilizes the TDA1557Q or TDA1553Q integrated circuit, which is a high-performance...
This circuit does not function as effectively as it could. It was created when the designer had a limited understanding of circuit design. An improved schematic will be developed and posted later, featuring a better design. The schematic indicates...
This is a simple three-transistor audio amplifier circuit capable of delivering 250 mW to an 8-ohm speaker. Complementary transistors BC337 and BC227 (Q3 and Q2) are utilized as the output pair, while transistor Q1 (BC547) functions as the preamplifier....
Common mode input voltage up to a difference of 100V enlarged circuit diagram. The circuit diagram described features a design capable of handling a common mode input voltage with a differential range of up to 100V. Such a configuration is...
This circuit utilizes a MOSFET amplifier as the primary component for boosting audio signals. It is designed to drive a speaker with an impedance of 8 Ohms and a power output exceeding 200W. Additionally, a suitable power supply circuit...