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语音编解码芯片 NAU8810手册资料V2.8

更新时间：2019-12-07 10:34:25 大小：2M 上传用户：ICANUP查看TA发布的资源 标签：nau8810语音编解码芯片 下载积分：9分 评价赚积分 （如何评价?） 打赏 收藏 评论(0) 举报

资料介绍

NAU8810是经典的语音编解码芯片，成本也很低，广泛应用于音频领域。

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1575685852NAU8810资料手册V2.8_.pdf 2M

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NAU8810  
Differential/Mono Audio Codec with 2-wire Interface Control Interface  
emPowerAudio™  
1. GENERAL DESCRIPTION  
The NAU8810 a cost effective low power wideband Monophonic audio CODEC. It is suitable for a wide range of  
audio applications, including voice telephony. Supported functions include a 5-band Graphic Equalizer, Automatic  
Level Control (ALC) with noise gate, PGA, standard I2S or PCM audio interface, optional PCM time slot  
assignment, and a full fractional-N on-chip PLL. This device includes one differential microphone input, and  
multiple variable gain control stages in the audio paths. Both a Mono headset/line-level output and a high power  
differential BTL speaker driver output are provided.  
The analog input path includes a PGA enabling dynamic range optimization of a wide range of input sources with  
programmable gain from -12dB to +35.25dB. In addition to a digital high pass filter to remove DC offset voltages,  
the ADC also features programmable voice band digital filtering. Audio data is communicated via the audio  
interface that supports multiple I2S and PCM data formats. The DAC converter path includes filtering, and mixing,  
programmable-gain amplifiers, and soft muting. The 2-Wire digital control interface has an independent supply  
voltage to enable easy integration into multiple supply voltage systems. The NAU88U10 operates at supply  
voltages from 2.5V to 3.6V, and the digital core can operate at a voltage as low as 1.71V to conserve power.  
The NAU8810 is specified for operation from -40C to +85C, and is available with automotive AEC-Q100  
qualification. Please refer to ordering information for AEC-Q100 compliance part number.  
2. FEATURES  
24-bit signal processing linear Audio CODEC  
Audio DAC: 93dB SNR and -84dB THD  
Audio ADC: 91dB SNR and -79dB THD  
Support variable sample rates from 8 - 48kHz  
Analog I/O  
Integrated programmable Microphone Amplifier  
Integrated BTL Speaker Driver 1 W (8Ω / 5V)  
Earphone / Speaker / Line-Output Mixing / Routing  
Integrated Headset Driver 40mW (16Ω / 3.3V)  
Low Noise bias supply voltage for microphone  
On-chip full fractional-N PLL  
Interfaces  
I2S digital interface PCM time slot assignment  
2-Wire serial control Interface (I2C style; /Write capable)  
emPowerAudio™  
Datasheet Revision 2.8  
Page 1 of 102  
March 1, 2017  
 
 
NAU8810  
Low Power, Low Voltage  
Analog Supply: 2.5V to 3.6V  
Digital Supply: 1.71V to 3.6V  
Nominal Operating Voltage: 3.3V  
Additional features  
5-band Graphic Equalizer  
Programmable ALC  
ADC Notch Filter  
Programmable High Pass Filter  
Digital ADC/DAC Passthrough  
Mono data output on both channels  
Automotive AEC-Q100 grade 3 & TS16949 qualification, tested to a higher reliability standard  
Temperature: –40C to +85C  
Applications  
All types of wired/wireless telephony  
Security Systems  
Mobile Telephone Hands-free Kits  
Residential & Consumer Intercoms  
ADC Filter  
Volume  
Control  
HPF  
MOUT  
DAC Filter  
Volume  
Control  
Input  
Mixers &  
Gain  
MIC-  
Microphone  
Interface  
Output  
Mixers  
ADC  
DAC  
MIC+  
Stage  
Notch  
Limiter  
SPKOUT+  
SPKOUT-  
Filter  
-1  
Microphone  
Bias  
Digital Audio Interface  
Control IF  
MICBIAS  
I2S  
PCM  
2-wire  
Audio I/O  
Digital I/O  
emPowerAudio™  
Datasheet Revision 2.8  
Page 2 of 102  
March 1, 2017  

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