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CM118B - Highly Integrated & Configurable USB Audio

Download the CM118B datasheet PDF. This datasheet also covers the CM118B-C variant, as both devices belong to the same highly integrated & configurable usb audio family and are provided as variant models within a single manufacturer datasheet.

General Description

The CM118B is a highly integrated, crystal-less USB audio single chip solution optimized for USB headset, headphone, dongle, microphone and application such as VoIP (voice over Internet protocol).

Key Features

  • such as headset, headphone and microphone only topologies are programmable with jumper pins. Vender can customize unique USB VID / PID / Product String / Manufacture String and min/max/initial volumes to the external EEPROM. The CM118B also offers anti-pop noise circuits design and internal oscillator which can operate without an external crystal oscillator. BLOCK.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (CM118B-C-MEDIA.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number CM118B
Manufacturer C-MEDIA
File Size 599.02 KB
Description Highly Integrated & Configurable USB Audio
Datasheet download datasheet CM118B Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
CM118B Highly Integrated & Configurable USB Audio Single Chip DESCRIPTION The CM118B is a highly integrated, crystal-less USB audio single chip solution optimized for USB headset, headphone, dongle, microphone and application such as VoIP (voice over Internet protocol). All essential analog modules are embedded in the CM118B, including dual DAC and ADC, earphone driver, microphone booster, PLL, regulator, and USB transceiver. It also supports 3 GPIO pins. In addition, audio adjustment can be easily controlled via specific HID compliant volume control pins. Many features such as headset, headphone and microphone only topologies are programmable with jumper pins.