Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
22 Aug. 20, 2004; 6251-650-1AI Micronas<br />
4. Firmware<br />
Mic<br />
Line<br />
USB<br />
I 2 S<br />
L<br />
R<br />
Mic<br />
Preamp<br />
Preamp<br />
(downstream)<br />
Mic-Bias<br />
A<br />
A<br />
Q-Peak<br />
D<br />
D<br />
switch to Line-L only for Codec Firmware<br />
Mono<br />
ADC-mix only for headset firmware<br />
Deemphasis<br />
off/50 µs/75 µs<br />
ADC<br />
mix<br />
USB<br />
mix<br />
I 2 S<br />
mix<br />
Fig. 4–1: Signal flow in the audio processing unit controlled by the codec/headset firmware using standard OS driver<br />
AGC<br />
Complementary<br />
High<br />
Pass<br />
Bass/<br />
Treble/<br />
Loudness<br />
Q-Peak<br />
<strong>com</strong>plete mix<br />
ADC+USBmix<br />
ADC input<br />
USB L/R<br />
I 2 S input<br />
<strong>com</strong>plete mix<br />
ADC+USBmix<br />
ADC input<br />
USB L/R<br />
I 2 S input<br />
5<br />
4<br />
0<br />
1<br />
2<br />
3<br />
5<br />
4<br />
0<br />
1<br />
2<br />
3<br />
Select<br />
Select<br />
EQ<br />
Scale<br />
Scale<br />
Mono/<br />
Stereo<br />
+<br />
Right<br />
Invert<br />
USB (upstream)<br />
I 2 S out<br />
Balance<br />
Vol.<br />
D<br />
D<br />
A<br />
A<br />
L<br />
R<br />
<strong>UAC</strong> <strong>357xB</strong> ADVANCE INFORMATION
Change language