Multimedia Audio Codec(CODEC)¶
CODEC brief introduction¶
CI130X has an internal CODEC. In a simple application scenario, it can meet the demand without using an external CODEC chip. The internal CODEC can be connected to a single MIC. The analog signal input by the MIC is amplified by the MIC gain and PGA. This PGA can be controlled by the ALC of CODEC itself. After PGA, it can also be amplified by digital gain.
CODEC characteristics¶
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DAC supports up to 24bit, SNR up to 92dB;
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ADC supports up to 24bit, SNR up to 90dB;
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Support single ended and differential MIC input and line in input;
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With ALC (automatic gain control);
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The specially designed ALC is more suitable for CI130X, namely ASR and algorithm;
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Sampling rate support: 8k/12k/16k/24k/32k/44.1k/48k/96k;
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Low power consumption: single channel playback as low as 5mA; Single channel voice acquisition is as low as 5mA.
Example of use¶
For examples of CODEC use, please refer to ☞《Recording and Playback Equipment Documentation》.