HS-100C Datasheet | C-Media

DESCRIPTION The HS-100C is a highly-integrated, crystal-free USB audio single chip solution optimized typically for USB headset, headphone, and dongle (wireless adapter enabled) applications. All necessary analog and digital modules were embedded in the HS-100C, including stereo DAC and earphone driver; mono ADC; microphone pre-amp booster; PLL; regulator; and USB transceiver. Many features of the HS-100C are programmable with jumper pins or external EEPROM. Customers can customize unique USB VID / PID / Product String / Manufacture String and max / min / initial volume settings via an external EEPROM. In addition, the HS-100C supports HID pliant volume control pins such as Playback Mute, Volume Up/Down and a Record Mute pin which interacts with the playback operation LED and record mute LED control pins. The HS-100C also es with an anti-pop noise circuits design and internal oscillator which can operate without an external crystal oscillator. BLOCK DIAGRAM PWRSEL MODE AREG36 DREG33 DREG18 PDSW MSEL 3.6V 3.3V 1.8V Regulator 5 à 3.6, 3.3 & 1.8 USB Control MOSI MISO SK EEPROM Interface USBDP USBDN USB TRX USB Interface ISO Out Processing ISO In Processing 48M 12M FEATURES - pliant with USB 2.0 Full-Speed operation - pliant with USB Audio Device class specification v1.0 - Supports USB Suspend/Resume Mode and remote wakeup with volume control pins - On-chip oscillator that provides reference sources for PLL and embedded USB transceiver - Jumper pin for Headset Mode (Playback + Recording) and Speaker/Headphone Mode (Playback Only) - Jumper pin for Mixer Unit enable/disable under Headset Mode - Jumper pin for Power Mode setting - USB audio function topology that has 2 Input Terminals, 2 Output Terminals, 1 Mixer Unit, 1 Selector Unit, and 3 Feature Units. (Headset Mode) - USB audio function topology that has 1 Input Terminal, 1 Output Terminal, and 1 Feature Unit. (Speaker Mode) - Anti-pop noise design for device plugged and...