Schematic Diagram Car Amplifier for MP3

These devices are low-cost, high-speed, dual JFET input operational amplifiers featuring an internally trimmed input offset voltage (utilizing BI-FET II technology). They require low supply current while maintaining a large gain-bandwidth product and fast slew rate. Additionally, well-matched high-voltage JFET input devices ensure very low input bias and offset currents. The LF353 is pin-compatible with the standard LM1558, allowing designers to immediately enhance the overall performance of existing LM1558 and LM358 designs. These amplifiers can be utilized in applications such as high-speed integrators, fast D/A converters, sample and hold circuits, and various other circuits that demand low input offset voltage, low input bias current, high input impedance, high slew rate, and wide bandwidth. The devices also exhibit low noise and offset voltage drift. When the amplifier is installed in the suitcase, a switch is required to function as a stop. The LA47536 has a standby function on pin 4, which requires a small voltage greater than 2V to start the amplifier. Transistors Q1 and Q2 serve as a walking stop for distance. When the driver activates the left indicator, either the backfires light or pressing the brake will ignite the rear lamps by driving Q2, which in turn drives Q1, applying a voltage greater than 2V to pin 4. Overview - A pure complementary structure that employs V-PNP transistors on the high side and NPN transistors on the low side to deliver high power and excellent audio quality. The LA47536 incorporates nearly all functions necessary for car audio applications, including a standby switch, a muting function, and various protection circuits. It also features a self-diagnosis function for output offset detection.

The LF353 operational amplifier is designed for applications requiring high performance with minimal power consumption. Its dual JFET input configuration allows for high input impedance, making it suitable for interfacing with various sensors and signal sources without loading them down. The internal trimming of input offset voltage enhances precision in applications where accuracy is critical, such as instrumentation and audio processing.

The LF353's compatibility with the LM1558 and LM358 amplifiers facilitates seamless upgrades in existing designs, ensuring that engineers can enhance performance without significant redesign efforts. The low input bias current and offset currents minimize the impact on the signals being processed, making these amplifiers ideal for use in high-speed integrators and fast digital-to-analog converters.

In terms of the LA47536 amplifier, it is specifically tailored for automotive audio applications, boasting a complementary output stage that provides both high power and high fidelity audio reproduction. The design features V-PNP transistors on the high side, which help in achieving efficient power management while maintaining sound quality. The inclusion of a standby switch and muting function enhances usability in automotive environments, allowing for power conservation and noise reduction when the system is not in use.

The self-diagnosis function for output offset detection is a critical feature for maintaining audio quality and preventing potential damage to speakers due to misalignment in output levels. The protection circuits integrated into the LA47536 ensure reliable operation in the demanding conditions of automotive applications, where fluctuations in temperature and voltage can affect performance.

Overall, these devices exemplify advanced engineering in operational amplifiers and audio amplifiers, providing users with reliable, high-performance solutions for a wide range of electronic applications.These devices are low cost, high speed, dual JFET input operational amplifiers with an internally trimmed input offset voltage (BI-FET II technology). They require low supply current yet maintain a large gain band width product and fast slew rate. In addition, well matched high voltage JFET input devices provide very low input bias and offset curr

ents. The LF353 is pin compatible with the standard LM1558 allowing designers to immediately upgrade e the overall performance of existing LM1558 and LM358 designs. These amplifiers may be used in applications such as high speed integrators, fast D/A converters, sample and hold circuits and many other circuits requiring low input offset voltage, low input bias current, high input impedance, high slew rate and wide bandwidth.

The devices also exhibit low noise and offset voltage drift. When the amplifier is installed behind in the suitcase, we shall need a switch works stop. The LA47536 possesses a function stand by in it pin4. This pine require a small tension superior to 2V in start up the amplifier. Transistor Q1 and Q2 makes the function of walking stop for distance. When the driver activates the left indicator, either light the back fires or press on the brake, lamps rear ignite driving Q2 who he even made to drive Q1 who applies a tension > 2V on it pin4. Overview - A pure complimentary structure that uses V-PNP transistors on the high side and NPN transistors on the low side to provide high power and superb audio quality.

- The LA47536 includes almost all the functions required for car audio use, including a standby switch, a muting function, and each protection circuit. It also provides a self-diagnosis function (output offset detection). 🔗 External reference