TDA7449_04 Datasheet, PDF (5/19 Pages) STMicroelectronics – TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR

Figure 4. P.C.Board (Referred to DIP20 package only)
TDA7449
Figure 5. Test Circuit
IN1L
J3
RCA
1
2
J4
3
4
5
CON3
GND
IN1L
GND
IN2L
GND
IN1R
J2
RCA
L-IN1 8
C3 0.47µF
L-IN2 9
C4 0.47µF
100K
100K
IN2R
1
GND
2
J1
IN1R
3
GND
4
CON
R-IN2 6
C1 0.47µF
R-IN1 7
C2 0.47µF
100K
100K
MOUTL
1
GND
2
J5
MOUTR
3
GND
4
CON4
J5
MUXOUTL
10
C9
5.6nF
R2 2K
150nF
330nF
TREBLE(L)
16
C7 C8
BIN(L)
15
BOUT(L)
14
R_B
5
LOUT
G
VOLUME
TREBLE
BASS
SPKR ATT
LEFT
J8
OUT_R
J9
OUT_L
1
OUT_L
2
J10
3
OUT_ R
4
CON4
0/30dB
2dB STEP
I²CBUS DECODER + LATCHES
18 DIG_GND
19 SCL
20 SDA
+9 V
JP1
JUMPER
1
2
J6
3
4
CON4
G
VOLUME
TREBLE
INPUT MULTIPLEXER
+ GAIN
11
MUXOUTR
17
TREBLE(R)
BASS
SPKR ATT
RIGHT
V_REF
SUPPLY
R_B
12
13
BOUT(R)
C5 C6
1
CREF
4
ROUT
3
R3 30
2 AGND
V_S
C13
100nF
C12
22µF
1
+V8
J7
2
GND
+9V
CON2
C10
5.6nF
150nF 330nF
R1 2K
C11
10µF
D98AU849A
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