NUC505-YO2Y datasheet(99/130 Pages) NUVOTON

99 / 130 page

NUC505

July. 26, 2018

Page 99 of 130

Rev.1.08

2S Controller with Internal Audio CODEC (I2S)

6.14

6.14.1 Overview

The I

2S controller consists of I2S protocol interface to internal audio CODEC and supports to use

external audio CODEC. The I

2S controller includes two 16 words FIFO for transfer path and

receiver path respectively and is capable of handling 8, 16, 24, or 32 bits word sizes sample.

The structure of internal audio CODEC is a delta-sigma 24-bit CODEC with microphone input,

audio line-in input, and headphone output.

6.14.2 Features

2S Controller



Supports Master mode and Slave mode



Capable of handling 8-, 16-, 24- and 32-bit word sizes sample



Supports Mono and Stereo audio data



Supports I

2S and most significant bit (MSB) justified data format



Supports PCM-A and PCM-B data format



Provides two 16 words FIFO, one for transmitting and the other for receiving



Generates interrupt requests when FIFO levels cross a programmable boundary



Supports TX DMA function for transmitting and RX DMA function receiving



Supports RX Data Power Measurement



Supports connecting to external audio CODEC

Internal CODEC



Supports mono microphone input and stereo audio line-in input



Supports stereo headphone output



Supports stereo and mono mode



Features of ADC

─

Total-Harmonic-Distortion with Noise (THD+N): -80 dB

─

Dynamic-Range (DR) and Signal-to-Noise ratio (SNR): 90 dB (A-Weighted)



Features

of DAC (headphone out with 32Ω loading)

─

Total-Harmonic-Distortion with Noise (THD+N): -60 dB

─

Dynamic-Range (DR) and Signal-to-Noise ratio (SNR): 93 dB (A-Weighted)



Supports sampling rate with 8 kHz, 11.025 kHz, 12 kHz, 16 kHz, 22.05 kHz, 24 kHz, 32

kHz, 44.1 kHz, 48 kHz, and 96 kHz

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