| Model | Input voltage | Function | Encapsulation |
|---|---|---|---|
| SP3303 | 3.3V | Support MP3/WMA/WAVAudio format decode master chip | LQFP64 |
| SP3306 | 3.3V | Support APE/FLAC/MP3/WMA/WAVAudio format decode master chip | LQFP64 |
| SP3308 | 3.3V | Built in Bluetooth protocol and supportAPE/FLAC/MP3/WMA/WAVAudio format decode master chip | LQFP64 |
