| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | LM4953 |  663Kb/11P | Ground-Referenced, Ultra Low Noise, Ceramic Speaker Driver |
 National Semiconductor ... | LM4953SD |  663Kb/11P | Ground-Referenced, Ultra Low Noise, Ceramic Speaker Driver |
 National Semiconductor ... | LM4950 |  1Mb/ 25P | 7.5W Mono-BTL or 3.1W Stereo Audio Power Amplifier |
 National Semiconductor ... | LM4950TA |  1Mb/ 25P | 7.5W Mono-BTL or 3.1W Stereo Audio Power Amplifier |
| LM4950TS |  1Mb/ 25P | 7.5W Mono-BTL or 3.1W Stereo Audio Power Amplifier |
 National Semiconductor ... | LM4951 |  1Mb/ 18P | Wide Voltage Range 1.8 Watt Audio Amplifier |
 National Semiconductor ... | LM4951A |  1Mb/ 20P | Wide Voltage Range 1.8 Watt Audio Amplifier With Short Circuit Protection |
 National Semiconductor ... | LM4951ASD |  1Mb/ 20P | Wide Voltage Range 1.8 Watt Audio Amplifier With Short Circuit Protection |