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TDA8190 Datasheet(PDF) 5 Page - STMicroelectronics

Part # TDA8190
Description  TV SOUND CHANNEL WITH DC CONTROLS
PDF  11 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA8190 Datasheet(HTML) 5 Page - STMicroelectronics

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TEST CONDITIONS (unless otherwise specified)
VS = 24V, QO = 60, fO = 4.5MHz, VIN = 1mV, fm = 400Hz,
∆f= ±25kHz, P1 = 12kΩ,RL = ∞,S1 = on
10
4
10
5
90
80
70
60
50
40
30
20
10
0
V (dB)
o
S+N
N (dB)
10
10
2
10
3
-18
-16
-14
-12
-10
-8
-6
-4
-2
0
0dB = 4V
Vo
S+N
N
V(
µV)
i
Figure 1 : Relative Audio Output Voltage and
Output Noise versus Input Signal
2
4
6
8
10 1214 1618 20
0
80
60
40
20
k (dB)
0.4 0.8 1.2 1.6
2
2.4 2.8 3.2 3.6
4
0
0
∆f: Set for V = 0dB
with P2 = 0
Ω (V
c = 0V)
P2 (k
Ω)
V
(V)
C
P2
VC
Figure 2 : Output Voltage Alternation versus DC
Volume Control Resistance (a) or ver-
sus DC Volume Control Voltage (b)
V (dB)
o
-30
10
4
10
5
10
2
10
3
-20
-10
-0
P1 = 12k
Ω
P1 = 5k
Ω
P1 = 2k
Ω
P1 = 100
Ω
0dB = 4V
fA (Hz)
S1 : off
P2 = 0
Ω
R L =
V10 = set for VO = 0dB
with
f
= 10Hz
A
Figure 3 : DC Tone Control Cut-off the High
Audio Frequencies for some Values
of Resistance adjusted by P1
10
4
10
5
10
10
2
10
3
AMR (dB)
70
50
30
10
0
20
40
60
V(
µV)
i
m = 0.3
Figure 4 : Amplitude Modulation Rejection
versus Input Signal
10
20
30
40
50
60
70
Qo
20
60
100
140
180
220
260
V (mV)
9
∆f = 7.5kHz
P2 = 12k
Ω
Figure 6 : Recovered Audio Voltage versus Un-
loaded Q-factor of the Detector Coil
-40
-30
-20
-10
0
10
20
30
-5
-4
-3
-2
-1
0
V = 10mV
i
V = 1mV
i
∆AMR (dB)
δ (kHz)
fo
m = 0.3
1
2
Figure 5 :
∆AMR versus Timing Frequency
Change
TDA8190
5/11



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