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 compliant volume control pins such as Playback Mute, Volume Up/Down and a Recording Mute pin which interacts with the Playback Operation LED and Recording Mute LED control pins. The HS-100C also comes with an anti-pop noise circuits design and internal oscillator which can operate without an external crystal oscillator.

• Anti-Pop noise design for device plugged and vice-versa
• On-Chip oscillator without an external crystal oscillator
• Support Multimedia “Playback Mute / Volume Up / Down / Recording Mute” HID Hot-Key controls
• Support Playback Operation LED and Recording Mute LED control pins
• Supports SPI interface 93C46 EEPROM for customizing “VID / PID / Product String / Manufacture String / Serial Number / Volume Range / Initial Volume / HID Disable” configuration
• QFN-32 (4 x 4mm) with small package size
• Windows^® 10 / Windows^® 11 Logo Certification

USB Compliance

• USB 2.0 Spec. Full-Speed compatible and USB-IF certification
• USB Audio Device Class Spec. 1.0 compliant
• USB HID Device Class Spec. 1.1 compliant

• USB Suspend/Resume mode and remote wakeup with volume control
• On-Chip oscillator that provides reference sources for PLL and embedded USB transceiver
• Anti-Pop noise design for device plugged and vice-versa, while A-A path (side tone) is off
• One Control endpoint, Isochronous-Out endpoint, Isochronous-In endpoint, and Interrupt-In endpoint
• HID Hot-Key of Volume Up, Volume Down, Playback Mute and Recording Mute
• Recording Mute pin with a LED indicator of recording mute status
• External EEPROM interface using SPI (Serial Peripheral Interface) for vendor specific USB VID / PID / Product String / Manufacture String / Serial Number and Min / Max / Initial volume settings
• USB Bus-Power mode with High-power (500mA) and Low-power (100mA, default) mode options by external selection pin
• Embedded 5V to 3.6V / 3.3V / 1.8 V regulators for single external 5V power

• 2-channel DAC outputs with 16-bit resolution and 48KHz, 44.1KHz sampling rate
• 1-channel ADC input with 16-bit resolution and 48KHz, 44.1KHz sampling rate
• Support Mono Mic input with independent voltage bias pins and analog mixer (side tone) function
• Support DAC DC offset cancellation
• Configurable USB audio topology to select Headset / Speaker mode

• Featured with Microsoft® HID controls including Vol_Up / Vol_Dn / Playback_Mute / Recording_Mute hot-key buttons (enabled by default)
• SPI control interface with external EEPROM access
• Supports 2 LED indicator control pins: Operation status /Recording_Mute (Enabled by default)

• Industrial standard 32-pin QFN Package
• Plug & Play on Windows^® 7 / 10/ 11 and Mac^® OS X that supports standard USB Audio Device Class 1.0 device driver
• Windows® 10 / Windows® 11 Logo Certification