供应GL631 USB Audio

   产品功能 
  l Compliant USB 2.0 Full speed
l Compliant USB audio device spec. 1.0 and HID class spec. 1.1
l Support Low-power (100mA) operation mode
l Support USB suspend / resume mode (500uA)
l Single 5V power supply
l 5V to 3.3V DC-DC and 3.3V to 1.8V DC-DC regulators embedded
l Single 12MHz Crystal required
l 2-channel 18-bit 48KHz Sigma-Delta D/As with Class-AB ear-phone power amplifies embedded
l 2-channel 18-bit 8KHz / 48KHz Delta-Sigma A/Ds with 20dB microphone gain boost circuit embedded
(-10.5dB ~ 12dB)
l Support Microsoft HID Volume control with playback muted, record muted, volume-up, and
volume-down
l Have 2 LED indicator pins: (1) power-on / off and USB operations (2) Recording muted
l Compatible Microsoft Windows 2000 / XP / Vista, Mac OS X, Red Hat, and Fedora without a private
driver
l Assembled as JEDEC LQFP-32L 7mm x 7mm x 1.4mm, Green Pack, RoHS certificated