Matrix - NanoHat PCM5102A

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1 Introduction

NanoHat PCM5102A

• The Matrix - NanoHat PCM5102A module uses TI's DAC audio chip PCM5102A and NS' low-noise, ultra-low dropout LP2992 regulator. PCM5102A's sample rates up to 384kHz and its resolution is 32-bit.
• Its dynamic range is 112dB. Its THD+N at –1 dBFS is -93db. Its full-scale single-ended output is 2.1V. The SNR is 120dB.
• Its onboard VS1838B infrared receiver allows it to be remote-controlled.
• This module has exactly the same dimension as the NanoPi NEO/Air and can be stacked on an NanoPi NEO/Air.

2 Hardware Spec

• Ultra-low out-of-band noise
• Audio data bit length: 16-bit, 24-bit and 32-bit
• Audio format selection: I2S (Low) / Left-justified
• Sampling frequency: 384KHz, resolution: 32-bit
• Onboard infrared receiver

• Pin Description:

NanoPi NEO/Air 24 Pin header is not listed here. Refer to NanoPi NEO/Air's wiki site for more details
NanoPi NEO NanoPi NEO Air

12Pin header pin description:

引脚	名称	描述
1	VDD_5V	5V Power In
2	NC	Not Connected
3	NC	Not Connected
4	NC	Not Connected
5	NC	Not Connected
6	IR Receiver	IR Receiver
7	NC	Not Connected
8	LRCK	I2S/PCM Sample Rate Clock/Sync
9	BCK	I2S/PCM Sample Rate Clock
10	DIN	I2S/PCM Serial Data Input
11	NC	Not Connected
12	GND	GND

3 硬件连接

NanoHat PCM5102A可直接叠加在NanoPi NEO/Air上。参考下图连接模块：

4 使用方法

按照上述硬件连接方法把模块堆叠在NanoPi NEO/Air上，使用最新的ROM制作SD启动卡，并连接电源和音响，3.5mm接口的音响可以使用3.5mm接口转RCA口音频接线转接。

使用以下命令播放TF卡里的音乐文件，以kewang.mp3为例。

madplay kewang.mp3

播放效果如下：

5 相关资料

• [Schematic](Schematic - NanoHat Proto.pdf)
• [Datasheet](PCM5102A)