ALC5631Q是瑞昱公司推出的一款高性能、强大的I2S音频编码解码器。宽压自适应电源以及低能耗的特点，使其广泛应用于便携式电子设备中，如：智能本、上网本。ALC5631Q有两种封装方式：ALC5631Q-GR、ALC5631Q-GRT。
ALC5631Q的采购信息如下：
ALC5631Q的主要功能特性包括：
1、Digital-to-Analog Converter with 100dBA SNR and –90dB THD+N
2、Analog-to-Digital Converter with 93dBA SNR and –88dB THD+N
3、Stereo BTL (Bridge-Tied Load) Class-D amplifier and with 650mW/Ch output power (SPKVDD=3.6V, THD = 1%, 8Ω load)
4、Stereo headphone output and without DC blocking capacitors. (With 45mW/Ch driving power, 3.3V, 16Ω load)
5、3 analog differential inputs and 1 stereo single-ended input
6、Stereo differential analog microphone inputs with boost pre-amplifiers and low noise microphone bias
7、Differential earpiece Amp output
8、Stereo single-end or one differential line output
9、Audio jack insert detection and microphone switch detection
10、Power management and enhanced power saving
11、Support flexible digital 6 bands equalizer (EQ)
12、Support digital spatial sound and pseudo stereo effect
13、Zero detection and soft volume for pop noise suppression
14、Inside PLL can receive wide range clock input
15、Support I2C Control Interface
16、24bit/8kHz ~ 192kHz I2S/PCM interface for stereo DAC
17、24bit/8kHz ~ 96kHz I2S/PCM interface for stereo ADC
18、Support enhanced Auto Level Control (ALC) function for playback and record
19、Support digital microphone interface
20、QFN-48 (6mm x 6mm) package
ALC5631Q的功能框图如下：
ALC5631Q的管脚图如下：
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