Difference between revisions of "Matrix - NanoHat PCM5102A"
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Revision as of 07:56, 20 January 2017
Contents
1 Introduction
- 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:
| Pin | Name | Description |
| 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)
