TDA8196 Datasheet, PDF (3/5 Pages) STMicroelectronics – AUDIO SWITCH AND DC VOLUME CONTROLFOR TV

TDA8196
TEST CIRCUIT
INPUT 1
C1 2.2µF
R1
1kΩ
R2
1kΩ
INPUT 2
C2 2.2µF
C3 10µF
V_S
1
7
TDA81 9 6
4
S WITCH
2
3
S WITCH
CONTROL
VOLUME
CONTROL
5
6
C4
100µF
C5 1µF
8
OUTP UT
R3
R _L 10kΩ
VOLUME
C O NTR O L
(0.5 to 4.5)
Figure 1 : TDA8196 Crosstalk
Ct (dB)
-60
Input 1
-70
Input 2
Figure 2 : Output Attenuation versus DC Volume
Control Voltage
kV (dB)
0
BW = 8Hz
-20
FLAT BAND
-80
-40
-90
-60
-100
-110
10
F(Hz)
100
1000 10000 100000
Figure 3 : K_v Drift vs. T_amb Variation
kV(dB)
1
0
T_amb ( C)
-1
0 10 20 30 40 50 60 70
-80
V_C (V)
-100
0
1
2
3
4
5
Figure 4 : SVR vs. Ripple Frequency
SVR (dB)
60
50
40
30
20
10
Fripple (Hz)
0
10
100
1000 10000 100000
3/5