骅讯USB音频控制器 CM6531N 采用QFN-48封装

　　Description and overview

　　The CM6531N is a low power USB 2.0 audio controller builds in 8051 for Lightning interface applications. Accompany with ultra-low power codec makes it suitable for low power headset, notebook/mobile docking and microphone applications. The internal 8051 can also be developed to different applications, such as Android Phone or iDevice Accessories with special functions, such as HID buttons or LED control. The CM6531N is compatible with USB Audio Class 1.0 and USB 2.0 full-speed, Thus it can plug and play without additional software installation on the major operation systems. The I2S support 8~96 KHz sampling rate and 16/24bits resolution.

　　The CM6531N also integrates 512K Byte flash (Including 32KB F/W programming size) but requires few passive components to make a finish product. Thus it can save the total BOM cost and PCB area can be smaller.