LM49200 и другие
| Компонент | Описание | Производитель | |
| LM4920 | Ground-Referenced, Ultra Low Noise, Fixed Gain, 80mW Stereo Headphone Amplifier |
National Semiconductor |
 |
| LM49200 | Stereo Class AB Audio Subsystem with a True Ground Headphone Amplifier |
National Semiconductor |
|
| SSM4920M | N-CHANNEL ENHANCEMENT-MODE POWER MOSFET |
Silicon Standard Corp. |
|