| STA321 | 4-channel digital audio system with FFX driver | true | Active | -0.3 | 4 | false | FFX | 75 | true | 0.53 | 8 | 192 | TQFP 64 10x10x1.4 |
| STA311B | Multichannel digital audio processor with FFX | Active | 3 | 3.6 | false | FFX | false | 32 | 192 | VFQFPN 59 8x8x0.9 |
| STA321MP | Scalable digital microphone processor | true | Active | 0.3 | 4 | false | FFX | 75 | true | 0.53 | 8 | 192 | LQFP 64 10x10x1.4,VFQFPN 59 8x8x0.9 |
| STA321MPL1 | Scalable digital microphone processor | true | Active | 0.3 | 4 | false | FFX | 75 | true | 0.53 | 8 | 192 | LQFP 64 10x10x1.4 |
| STA309B | Multi-channel digital audio processor with FFX | true | Preview | 3 | 3.6 | false | FFX | 100 | true | 1 | 32 | 192 | VFQFPN 59 8x8x0.9 |
| STA309A | Multi-channel digital audio processor with DDX® | true | Active | 3 | 3.6 | false | PWM | 100 | true | 1 | 32 | 192 | LQFP 64 10x10x1.4 |
