Chapter 3 |
| Hardware | ||
Table | ||||
|
|
|
|
|
| Pin # | Signal | Description |
|
| 1 | VIDEO_L | Video audio signal in left channel |
|
|
|
|
|
|
| 2 | VIDEO_GND | Video digital ground (Audio ground) |
|
| 3 | VIDEO_R | Video audio signal in right channel |
|
|
|
|
|
|
| 4 | CD_L |
| |
|
|
|
|
|
| 5 | CD_GND |
| |
| 6 | CD_R |
| |
|
|
|
|
|
| 7 | LINE_IN_L | Line in signal left channel |
|
|
|
|
|
|
| 8 | LINE_IN_GND | Line in digital ground (Audio ground) |
|
| 9 | LINE_IN_R | Line in signal right channel |
|
|
|
|
|
|
| 10 | MIC1 | Microphone in signal 1 or left channel |
|
|
|
|
|
|
| 11 | MIC_GND | Microphone digital ground (Audio ground) |
|
| 12 | MIC2 | Microphone in signal 2 or right channel |
|
|
|
|
|
|
| 13 | MIC_REF | Microphone reference signal |
|
|
|
|
|
|
| 14 | NC/KEY | Not connected - Key pin |
|
| 15 | PHONE_IN | Phone signal in |
|
|
|
|
|
|
| 16 | PHONE_GND | Phone digital ground (Audio ground) |
|
| 17 | MONO_OUT | Monaural signal out |
|
| 18 | MONO_GND | Monaural digital ground (Audio ground) |
|
| 19 | +AOUT_L | + Audio Amplifier output signal left channel |
|
|
|
|
|
|
| 20 | AGND | Audio Ground |
|
| 21 | +AOUT_R | + Audio Amplifier output signal right channel |
|
|
|
|
|
|
| 22 | AGND | Audio Ground |
|
| 23 | AGND | Audio Ground |
|
| 24 | HP_L | Headphone signal left channel (from Audio Amp) |
|
|
|
|
|
|
| 25 | HP_R | Headphone signal right channel (from Audio Amp) |
|
|
|
|
|
|
| 26 | NC | Not connected (Headphone In) |
|
Notes: The shaded area denotes power or ground.
54 | Reference Manual | LittleBoard 550 |
