TDA7437N Datasheet, PDF (21/23 Pages) STMicroelectronics – DIGITALLY CONTROLLED AUDIO PROCESSOR

TDA7437N
Figure 15. Non_Sym _Bass
ATT
(dB)
10
5
0
-5
-10
-15
-20
-25
10
100
1K
D95AU394
10K
Freq(Hz)
Figure 16. Loudness
ATT
(dB)
18
16
14
12
10
8
6
4
2
0
10
100
1K
D98AU887
10K
Freq(Hz)
Figure 17. Test Board Diagram
GND V_CC
CON1
C17
22µF
C18
100nF
R4
2.7K
R3
5.6K
C19
5.6nF
JP2 JP1
C11
18nF
C10
22nF
C8
100nF
C7
100nF
C16 22µF
CON4
DIFG_R
DIFF_R
ST4_R
ST1_R
ST2_R
ST3_R
MONO
CON5
DIFG_L
DIFF_L
ST4_L
ST1_L
ST2_L
ST3_L
TRL
MIDRI
MIDRO BASSRO BASSRI
C20 5.6nF
44 43 42 41 40
31
30
27
26
TRR
1
C21
2.2µF
C22 4.7nF
IN_R
2
3
O_R
4
LOUDR
C23 4.7µF
5
DIFG_R
C24 4.7µF
6
DIFF_R
C25 470nF
7
ST4_R
C26 470nF
8
ST1_R
C27 470nF
9
ST2_R
C28 470nF
10
ST3_R
C29 470nF
11
MONO
C30 4.7nF
12
LOUDR
13
14
15
16
17
18
19
35
DIFG_R DIFF_R ST4_R ST1_R ST2_R ST3_R CSM PAUSE
CREF
C6 100nF
39
BASSLO
25
C5 100nF
BASSLI
24
MIDLO
23
C4 22nF
MIDLI
22
C3 18nF
I_L
20
21
O_L
C2
2.2µF
38
SCL
JP3
28
SMEX
37
SDA
36
DGND
R5
50
C14
34
OUTLF
C13
33
RF
C12
32
29
LR
C9
OUTRR
C31 4.7µF
C32 4.7µF
C1
2.2nF
C15
10µF
R2
5.6K
R1
2.7K
CON2
SCL
SMEX
SDA
DGND
CON3
LF
RF
LR
RR
GND
C33 470nF
C34 470nF
C35 470nF
C36 470nF
D98AU882
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