骅讯USB音频解决方案 CM6302 封装LQFP-64

　　Description and Overview

　　The CM6302 is a highly integrated single-chip USB audio solution. All essential analog and digital modules are integrated into the chip, including 2-ch DAC and 2-ch ADC,earphone/speaker driving capable,DRC function (default off), linear microphone gain control, PLL, regulator and USB transceiver modules. As for DAC and ADC quality, this single chip supports8khz/16Khz/44.1Khz/48Khz sampling rates with 16-bit resolution.

　　For higher performance, theCM6302supported 125 and 12C interfaces communicate with external codecs or the MCU for further processing.The CM6302 is the world's first multi-channel software-integrated DSP with Xear 3D and Dolby® Digital sound. This audio solution is highly suitable for high-end USB headsets, earphone, audio interface box or proprietary wireless audio applications.

　　Many features are programmable with jumper pins or by external EEPROM. In addition, audio adjustments can be easily controlled via specificHID-compliant volume control pins. Also, 8 GPIO pins can be accessed with customer application software for additional value-added applications.

　　Furthermore, Dolby® Headphone technology provides an amazing sound experience for PC audio and gaming entertainment. This technology works by creating an acoustic illusion: it makes you think you are hearing a five-speaker home theater system, when in fact you are listening to headphones. This illusion is based on a fundamental understanding of how we are able to judge which direction a sound is coming from, how far away it is, and whether it is in motion. It can even locate and track many sounds at the same time.