TDA9860 audio Hi-Fi integrated circuit is used to switch 3 pairs of stereo or 6 mono signals input to the main circuit (MAIN), AVX and European standard 21 socket (SCART) to SCART, speaker or headphone. It uses I2C bus to control volume, tone and stereo (linear stereo, stereo with spatial effect, special single with or without pseudo stereo effect, etc.). The silent function of 85dB is provided.
This manual describes the TDA9860 audio Hi‑Fi integration circuit. It explains the main signal path (MAIN), AVX, and SCART interfaces, which can switch between stereo and mono signals and support up to six mono channels. The chip also offers volume, tone, and stereo control via an I²C interface, including an 8 dB mute function.
A detailed pin‑function table is provided, listing SCART inputs and outputs, speaker connections, bass and treble control pins, and headphone outputs. Voltage levels for each pin are specified, allowing designers to correctly integrate the device into audio systems. This manual is written in Chinese.
| Mute attenuation | 8 dB |
|---|---|
| SCART input voltage | 4.34 V |
| Speaker output voltage | 4.35 V |
The TDA9860 uses an I²C bus to control volume, tone, and stereo settings.
It provides an 8 dB mute function.