CM6631A

CM6631A USB 2.0 High-Speed True HD Audio Processor DESCRIPTION Cmedia CM6631A is a USB2.0 true high-speed audio processor that can support the latest USB Audio Device Class Definition V2.0 and high-definition audio processing capability up to 192KHz/32bit. CM6631A provides the industrial standard I2S and HDA audio interface and also integrates 192KHz/24bit S/PDIF transmitter/receiver and MIDI I/O device. It’s suitable for versatile, high-profile, typical 2-channel I/O audio applications. Furthermore, CM6631A has an embedded 8051 microprocessor that can enhance the best flexibility and functionality with external upgradeable F/W codes. CM6631A would be the most high-fidelity and powerful audio core for high-value USB2.0 audio products. BLOCK DIAGRAM Self-Power GPIO/JD FEATURES  USB Spec. Rev.2.0 high-speed/full-speed mode compatible  Latest USB Audio Device Class Definition Release v.2.0/1.0 compatible  USB Human Interface Device (HID) Class Definition Release 1.1 compliant  Supports USB suspend/resume/reset functions  Supports control, interrupt, bulk, and isochronous data transfers  2 pairs I2S or Left-Justified serial audio output /input interface  I2S input/output support 192K/176.4K/96K/88.2K/48K/44.1KHz and 16/24/32-bit  Built-in 192K/176.4K/96K/88.2K/48K/44.1KHz and 16/24-bit S/PDIF transceiver  Supports S/PDIF IN-to-OUT loop-back path for signal transforming between TOSLINK and RCA connections PDSW Bus-Power 3.3V-to-2.5V Regulator GPIO Interface Maste...