Cirrus CS42L73高集成低功耗音频CODEC解决方案

Cirrus公司的CS42L73是高度集成低功耗音频和电话CODEC,适用于手提设备如智能手机,笔记本电脑. CS42L73具有灵活的时钟架构,可采用的基准时钟为6, 12, 24, 13, 26, 19.2, 或38.4 MHz,立体声ADC,支持两路模拟或数字MIC,四个DAC耦合到五个输出,单声道耳机放大器和1W扬声器放大器,数字音频混合和路由, 3.00 V - 5.25 V工作电压,超低功耗,模数转换具有91dB动态范围和-85dB THD+N,DAC到线输出的动态范围97dB, -86dB THD+N.本文介绍了CS42L73主要特性,方框图, 典型应用电路图和评估板CDB42L73特性, 系统框图,电路图,PCB元件布局图与CS42L73在智能手机中的应用框图.

The CS42L73 is a highly integrated, low-power, audio and telephony CODEC for portable applications such as smartphones and ultra mobile personal computers.

The CS42L73 features a flexible clocking architecture, allowing the device to utilize reference clock frequencies of 6, 12, 24, 13, 26, 19.2, or 38.4 MHz, or any standard audio master clock. Up to two reference/master clock sources may be connected; either one can be selected to drive the internal clocks and processing rate of the CS42L73.

Thus, multiple master clock sources within a system can be dynamically activated and de-activated to minimize system- level power consumption.
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