The ALC655 is a 16-bit, full duplex AC'97 2.3 compatible six-channel Audio CODEC designed for PC Multimedia systems, including host/soft Audio and AMR/CNR based designs. The ALC655 incorporates proprietary converter technology to meet performance requirements on PC99/2001 systems. The ALC655 CODEC provides three pairs of stereo outputs with 5-Bit Volume Controls a mono output, and multiple stereo and mono inputs, along with flexible mixing, gain and mute functions to provide a complete integrated Audio solution for PCs. The digital Interface circuitry of the ALC655 CODEC operates from a 3.3V power supply for use in notebook and PC applications. The ALC655 integrates 50mW/20ohm headset Audio Amplifiers at Front-Out and Surr-Out, built-in 14.318M24.576MHz PLL and PCBEEP generator, those CAN save BOM costs. The ALC655 also supports the S/PDIF input and output function, which CAN offer easy connection of PCs to consumer electronic products, such as AC3 decoder/speaker and mini disk devices. ALC655 supports host/soft Audio from Intel ICHx chipsets as well as Audio controller based VIA/SIS/ALI/AMD/nVIDIA/ATI chipset. Bundled Windows series drivers (WinXP/ME/2000/98/NT), EAX/ Direct Sound 3D/ I3DL2/ A3D compatible sound effect utilities (supporting Karaoke, 26-kind of environment sound emulation, 10-band equalizer), HRTF 3D positional Audio and Sensaura 3D (optional) provide an excellent entertainment package and game experience for PC users. The ALC655 includes Realteks impedance sensing techniques that allow device loads on inputs and outputs to be detected. By Realtek Semiconductor Corporation
ALC655 's PackagesALC655 's pdf datasheet

ALC655 Pinout, Pinouts
ALC655 pinout,Pin out
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