| Manufacturer | Part # | Datasheet | Description |
 National Semiconductor ... | LM4934 |  1Mb/39P | 3D Audio Sub-System with Stereo Speaker, OCL/SE Stereo Headphone, Earpiece and Mono Line Level Outputs |
| LM4934 |  1Mb/39P | 3D Audio Sub-System with Stereo Speaker, OCL/SE Stereo Headphone, Earpiece and Mono Line Level Outputs |
| LM4934WL |  1Mb/39P | 3D Audio Sub-System with Stereo Speaker, OCL/SE Stereo Headphone, Earpiece and Mono Line Level Outputs |
| LM4934 |  1Mb/39P | 3D Audio Sub-System with Stereo Speaker, OCL/SE Stereo Headphone, Earpiece and Mono Line Level Outputs |
 National Semiconductor ... | LM4930 |  966Kb/ 33P | Audio Subsystem with Stereo Headphone & Mono Speaker Amplifiers |
| LM4930 |  994Kb/ 35P | Audio Subsystem with Stereo Headphone & Mono Speaker Amplifiers |
 National Semiconductor ... | LM4930ITL |  966Kb/ 33P | Audio Subsystem with Stereo Headphone & Mono Speaker Amplifiers |
 National Semiconductor ... | LM4930 |  994Kb/ 35P | Audio Subsystem with Stereo Headphone & Mono Speaker Amplifiers |
 National Semiconductor ... | LM4931 |  1Mb/ 47P | Audio Subsystem with Mono High Efficiency Loudspeaker and Stereo Headphone Amplifiers |
| LM4931 |  1Mb/ 48P | Audio Subsystem with Mono High Efficiency Loudsperker and Stereo Headphone Amplifiers |