The OPA2134 Op-Amp is a low-cost, high-Performance Audio Operational Amplifier. The OPA2134 series is ultra-low distortion, low-noise operational amplifiers fully specified for audio applications.
TDA7388 is a class AB radio amplifier designed for car radio applications. It allows the rail to rail output swing for fully complementary PNP/NPN output configuration. And it does not require any bootstrap capacitors.
The IRS2092S audio amplifier IC is an integrated building block for class D amplifiers, and when configured correctly can support up to 500W output powers.
The audio jacks was invented in the 19th century for the purpose of use in telephone switchboards and still used widely to transfer analog audio signals.
35mm Audio Jack Pinout Configuration
Pin No.