sta559bw STMicroelectronics, sta559bw Datasheet - Page 17

• Manufacturer Part Number: sta559bw
• Description: 5-volt, 2-amp, 2.1-channel High-efficiency Digital Audio System Sound Terminal
• Manufacturer: STMicroelectronics

STA559BW
Figure 6.
Sampling
Sampling
frequency=Fs
frequency=Fs
From
From
I2S input
I2S input
interface
interface
R
R
L
L
Left and right processing
sampling
sampling
sampling
sampling
over
over
over
over
FIR
FIR
FIR
FIR
x2
x2
x2
x2
Sampling
Sampling
frequency=2xFs
frequency=2xFs
If DEMP=0
If DEMP=0
PreScale
PreScale
If DEMP=0
If DEMP=0
PreScale
PreScale
User-Defined Mix Coefficients
User-Defined Mix Coefficients
C1Mx1
C1Mx1
C1Mx2
C1Mx2
C2Mx1
C2Mx1
C2Mx2
C2Mx2
C3Mx1
C3Mx1
C3Mx2
C3Mx2
If HPB=0
If HPB=0
If HPB=0
If HPB=0
Hi-Pass
Hi-Pass
Hi-Pass
Hi-Pass
+
+
+
+
+
+
Filter
Filter
Filter
Filter
Doc ID 18190 Rev 1
Crossover Frequency determined by XO Setting
Crossover Frequency determined by XO Setting
User Defined If XO=0000
User Defined If XO=0000
Biquad
Biquad
Biquad
Biquad
#1
#1
#1
#1
Lo-Pass
Lo-Pass
Hi-Pass
Hi-Pass
Hi-Pass
Hi-Pass
If DSPB=0 and C2EQBP=0
If DSPB=0 and C2EQBP=0
If DSPB=0 and C1EQBP=0
If DSPB=0 and C1EQBP=0
User-Defined Filters
User-Defined Filters
User-Defined Filters
User-Defined Filters
Filter
Filter
Filter
Filter
Filter
Filter
Biquad
Biquad
Biquad
Biquad
#2
#2
#2
#2
XO
XO
XO
XO
XO
XO
Biquad
Biquad
Biquad
Biquad
#3
#3
#3
#3
Biquad
Biquad
Biquad
Biquad
#4
#4
#4
#4
Limiter
Limiter
Limiter
Limiter
Limiter
Limiter
And
And
And
And
And
And
Vol
Vol
Vol
Vol
Vol
Vol
Emphasis
Emphasis
Emphasis
Emphasis
De-
De-
De-
De-
Processing data paths
If C2TCB=0
If C2TCB=0
BTC: Bass Boost/Cut
BTC: Bass Boost/Cut
TTC: Treble Boost/Cut
TTC: Treble Boost/Cut
If C1TCB=0
If C1TCB=0
BTC: Bass Boost/Cut
BTC: Bass Boost/Cut
TTC: Treble Boost/Cut
TTC: Treble Boost/Cut
Bass
Bass
Bass
Bass
Post scale
Post scale
Post scale
Post scale
Post scale
Post scale
Treble
Treble
Treble
Treble
R
R
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L
L