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參數(shù)資料
| 型號： | TDA8190 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | TV SOUND CHANNEL WITH DC CONTROLS |
| 中文描述： | 電視伴音通道直流控件 |
| 文件頁數(shù)： | 3/11頁 |
| 文件大小： | 183K |
| 代理商： | TDA8190 |
ELECTRICALCHARACTERISTICS
(refer to the test circuit, V
S
= 24V,S1 : on,
f =
±
25kHz, V
I
= 1mV, P
1
= 12k
, f
o
= 4.5MHz, f
m
= 400Hz,
T
amb
= 25
°
C, unlessotherwise specified)
Symbol
Parameter
TestConditions
Min.
Typ.
Max.
Unit
DC CHARACTERISTICS
V
s
V
o
V
1
V
4
I
d
Supply Voltage (pin 18)
Quiescent Output Voltage (pin 17)
Pin 1 DC Voltage
Pin 4 DC Voltage
Quiescent Drain Current
P
2
= 12k
10.8
11
27
13
V
12
5.3
3.2
32
P
2
= 12k
,
R
1
= 270k
V
V
P
2
= 12k
mA
IF AMPLIFIER AND DETECTOR
V
i (threshold)
V
9
AMR
R
i
C
i
R
9
Input Limiting Voltage at Pin 2 (–3dB)
Recovered Audio Voltage (pin 9)
Amplitude Modulation Rejection(*)
Input Resistance (pin 2)
Input Capacitance (pin 2)
Deemphasis Resistance
V
o
= 4 V
rms
f =
±
7.5kHz, P
2
= 12k
m = 0.3, V
i
= 1mV, V
o
= 4V
RMS
50
200
60
30
6
1.1
100
280
μ
V
mV
dB
k
pF
k
140
f = 0, P
2
= 12k
C
1
= 68 to 888nF
0.75
1.5
DC VOLUME CONTROL
K
v
Volume Attenuation
(resistance control)
P
2
= 0
P
2
= 4.3k
P
2
= 12k
K = 0dB
K = 26dB
K = 88dB
20
0
26
88
0
1.3
2.6
32
dB
dB
dB
V
V
V
V
c
Control Voltage
K
V
T
pins
Volume Attenuation Thermal Drift
(resistance control)
T
pins
= 25 to 85
°
C, P
2
= 4.3k
– 0.05
dB/
o
C
DC TONE CONTROL
K
T
Tone Cut
S1 : Off, V
10
= 200 mV
P
1
= 12k
to 100
, f
AF
= 10kHz
14
dB
AUDIO FREQUENCY AMPLIFIER
P
o
Output Power (d = 10 %)
V
s
= 24 V, R
L
= 16
V
s
= 12 V, R
L
= 8
P
o
= 1W, R
= 16
, S1 : Off,
V
= 200mV, V
o
= 4V
RMS
,
@400 Hz
P
2
= 12k
,
f = 0, f
ripple
= 120Hz
3.5
4.1
1.5
50
W
W
kHz
B
Frequency Response of Audio Amplifier
(– 3dB)
15
SVR
Supply Voltage Rejection
26
dB
V. C. R.
d
Total Harmonic Distortion of Pin 9
Output Signal
Supply Voltage Rejection at Output Pin 9
f =
±
7.5kHz, V
i
= 1mV
0.5
%
SVR
S
+
N
N
V
10
R
10
f = 0, f
ripple
= 120Hz, P
2
= 12k
66
dB
Signal to Noise Ratio at Output Pin 9
f = 25kHz, V
i
≥
1 mV
70
dB
Input Voltage (playback)
Input Resistance (playback)
Total Harmonic Distortion for 20dB
Overload of V
10
V
o
= 4 V
rms
, P
2
= 0, S1 : Off
S1 : Off
S1 : Off, V
10
= 1V
rms
, V
o
= 4V
rms
50
10
70
100
mV
k
%
0.5
3
8
TDA8190
3/11
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