tda8191 STMicroelectronics, tda8191 Datasheet - Page 4

• Manufacturer Part Number: tda8191
• Description: Tv Sound Channel
• Manufacturer: STMicroelectronics

TDA8191
TYPICAL APPLICATION
Figure 2 :
Figure 4 :
4/6
10
20
30
40
60
80
90
50
70
-10
-12
-14
-16
-18
L1 : Qu = 80e, fo = 5.5MHz.
input
0
-4
-8
-2
-6
IF
0
0
10
K Tip (dB)
V (dB)
o
0dB = 4V
0.1
560
µ
F
Ω
V S
470µF
1
10
Volume Attenuationversus
DC Volume Control Voltage
Output Noise versus Input Signa
Relative Audio Output Voltage and
2
0.1µF
560
Ω
2
0.1
10
0.1µF
µ
2
3
F
4
3
V
68pF
C
S+N
V o
8.2pF
N
3
(V)
7
(30 +/-6 dB)
10
18
12 dB
8
4
V (µV)
k
i
T = 300 k
L1
N (dB)
k+ Noise
270k Ω
4.7
4
T
S+N
68nF
1
µ
µ
F
F
OUT
10
9
V9
TDA 8191
5
1
1
µ
10
20
30
40
50
60
70
80
90
F
5
0
10
IN
V10
V11
S W
11
Figure 3 :
-10
-20
-30
-40
-50
Figure 5 :
10
5
30
20
10
8
6
4
2
0
10
0
10
d (%)
-2
∆K (dB)
12
6
1.5k Ω
V = 12V, R = 8 Ω
V = 24V, R = 16 Ω
15
13
S
S
30
24k Ω
Volume Attenuation Thermal Drift
Distortion versus Output Power
11kΩ
Volume
16
14
10
TYP at T = 380 k
WORST CASE at T = 380 k
2.2µF
-1
V C
50
20
L
L
19
17
15kΩ
270
2.2
J
µ
Ω
F
70
C1 = 4.7nF
1
R1 = 1.8kΩ
J
90
470
220nF
R2
6.6Ω
µ
F
(W)
Pl
k
V o
o
110
RL
10