[原创] Cirrus CS53L30高性能低功耗四路音频ADC评估方案

Cirrus公司的CS53L30是高性能低功耗四模数转换器(ADC),0dB增益时的动态范围91dB,THD+N为－84dB，四路全差分输入和模拟输入,-6到12d可编增益放大器,主要用于语音识别系统, 录音机,摄影机,数码相机以及高挡耳机和电话系统.本文介绍了CS53L30主要特性,框图,多种应用电路以及评估板CDB53L30主要特性,框图,电路图,PCB装配图和PCB设计图.

The CS53L30 is a high-performance, low-power, quad-channel ADC. It is designed for use in multiple-mic applicationswhile consuming minimal board space and power.

The flexible ADC inputs can accommodate four channels of analog mic or line-input data in differential, pseudodifferential,or single-ended mode, or four channels of digital mic data. The analog input path includes a +10- to +20-dB boost and a–6- to +12-dB PGA. Digital mic data bypasses the analog gain circuits and is fed directly to the decimators.

Four mic bias generators are integrated into the device. The device also includes two digital mic serial clock outputs.
..

查看全文