音频接口(Audio)
From ESS-WIKI
Audio (CN2)
RSB-4680 supports line-out stereo speakers, MIC in and speaker out. Earphones can be connected to the line-out pin header, and the microphone can be connected to the MIC in pin header. It also supports mono speaker. (2.8W 4Ω or 1.5W 8Ω) Detailed pin-definitions are below:
| Pin | Pin Name | Pin | Pin Name |
| 1 | Line-out R+ (AMP_R+) |
2 | Line-out L+ (AMP_R-) |
| 3 | AMP_R- |
4 | AMP_L- |
| 5 | AMP_AGND |
6 | GND_AUDIO |
| 7 | MIC_IN1_P |
8 | MIC_IN1_N |
| 9 | MIC_IN3_P |
10 | MIC_IN3_N |
| 11 | SPEAKER_P |
12 | SPEAKER_P |
插一张Audio (CN2)的接口图