AU6210K – USB Host MP3 Decoder

This is Decoder.

Part Number: AU6210K

Function: USB Host MP3 Decoder SOC

Package: LQFP 48, 7x7mm Pin type

Manufacturer: Shanghai Mountain View Silicon Technology ( MVSILICON )


AU6210K ic datasheet



A highly integrated SOC for MP3 player, AU6210K integrates MCU, FM receiver, MP3 decoder, OTG, SD/MMC card controller, SARADC, Audio DAC, segment LED/LCD display driver, RTC, IR decoder, touch key and key tone generator in a single chip, AU6210K offers low cost, low power consumption, flexible and more powerful host MP3 player solution.

A USB Host MP3 Decoder SoC (System-on-a-Chip) is an integrated circuit that combines the functionality of a USB host controller and an MP3 audio decoder in a single chip. This type of SoC is designed specifically for devices that require the ability to decode and play MP3 audio files from USB storage devices.

The USB host controller portion of the SoC allows the device to act as a host, enabling it to connect and communicate with USB flash drives, external hard drives, or other USB storage devices. It provides the necessary hardware and software interfaces to handle USB communication protocols and file system access.


1. Enhanced 8051, up to 10 times faster than standard 8051
2. Embedded FM receiver
3. OTG 2.0 full-speed controller
4. SD/MMC card controller
5. Support MP3 decode
6. Embedded sound equalizer
7. Support FAT16/FAT32 file system
8. Embedded 18-bit Audio CODEC
9. Support auxiliary audio input
10. Embedded SARADC for peripheral controls
11. Embedded RTC
12. Embedded NVM to save external EEPROM
13. Support led display during battery charging.
14. Support segment LED/LCD display.



AU6210K pinout diagram

AU6210K is a CMOS device. Floating level on input signals causes unstable device
operation and abnormal current consumption. Pull-up or Pull-down resistors should be used appropriately for input or bidirectional pins.


AU6210K Datasheet

AU6210K pdf

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OM8378 PDF – TV Signal Processor-Closed Caption Decoder

Part Number: OM8378

Function: TV signal processor-Closed Caption decoder

Package: DIP 64 Pin Type

Manufacturer: Philips Semiconductors

Images:OM8378 datasheet


The OM8373 and OM8378 combine the functions of a video processor together with a µ-Controller and US Closed Caption decoder. The ICs are intended to be used in economy television receivers with 110° picture tubes. The ICs have supply voltages of 8 V and 3.3 V and they are mounted in a SDIP-64 envelope. The features are given in the following feature list.


TV-signal processor

1. Vision IF circuit suitable for negative modulation with alignment-free PLL demodulator

2. Internal (switchable) time-constant for the IF-AGC circuit

3. The mono intercarrier sound circuit has a selective FM-PLL demodulator which can be switched to the different FM sound frequencies (4.5/5.5/6.0/6.5 MHz).  The quality of this system is such that the external band-pass filters can be omitted.

4. Source selection between the ‘internal’ CVBS and an external CVBS or Y/C signal

OM8378 pdf pinout

A TV signal processor, including a Closed Caption (CC) decoder, is a crucial component in modern television sets and video equipment. The Closed Caption decoder is responsible for extracting and displaying closed captions, which are text-based subtitles or captions that provide a transcript of the audio content on the screen.

1. Reception of TV Signal: The TV signal processor receives the incoming television signal, which includes both the audio and video components. This signal can come from various sources, including cable or satellite providers, over-the-air broadcasts, or external devices like DVD players and gaming consoles.

2. Separation of Video and Audio: The processor separates the video and audio components of the incoming signal. The video component is sent to the TV display, while the audio is routed to the TV’s audio system.

3. Closed Caption Data Extraction: Within the audio and video signal, there is embedded data related to the closed captions. This data is encoded using a standard protocol, such as CEA-608 or CEA-708 for North American television broadcasts. The Closed Caption decoder within the TV signal processor extracts this data.

OM8378 PDF Datasheet