| No | Part number | Description ( Function ) | Manufacturers | |
| 2 | CS4221 | 24-Bit Stereo Audio Codec with 3V Interface CS4220 CS4221 24-Bit Stereo Audio Codec with 3V Interface Features l 100 dB Dynamic Range A/D Converters l 100 dB Dynamic Range D/A Converters l 105 dB DAC Signal-to-Noise Ratio (EIAJ) l Analog Volume Control (CS4221 only) l Differential Inputs / Outputs l On-chip Anti-aliasing and Output Smoothing Filters l De-emphasis for 32, 44.1 and 48 kHz l Supports Master and Slave Mode |
 Cirrus Logic |
|
| 1 | CS4221-KS | 24-Bit Stereo Audio Codec with 3V Interface |
Cirrus Logic |
|
[1]
List of most widely used semiconductors
| Part Number | Function | Manufacturers | |
| 1N4007 | The 1N4007 is a rectification diode that is designed for high-voltage applications, typically up to 1000V. It has a maximum current rating of 1A and a forward voltage drop of around 0.7V. |
 Vishay |
|
| LM317 | This is a popular adjustable voltage regulator. |
 ON Semiconductor |
|
6N137 | LM393 | 2N3906 | 2N2222 | TIP120 | 1N5818 | LM324N | A1015 | SMAJ20CA |
|||