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参数资料
| 型号： | TDA7381 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 18 W, 4 CHANNEL, AUDIO AMPLIFIER, PZFM25 |
| 封装： | FLEXIWATT-25 |
| 文件页数： | 9/13页 |
| 文件大小： | 225K |
| 代理商： | TDA7381 |
TDA7381
Electrical specifications
5/13
Figure 3.
Standard test and application circuit
eNo
Output noise
"A" Weighted
50
μV
Bw = 20 Hz to 20 kHz
65
150
μV
SVR
Supply voltage rejection
f = 100 Hz
50
65
dB
fcl
Low cut-off frequency
20
Hz
fch
High cut-off frequency
75
KHz
Ri
Input impedance
70
100
K
Ω
CT
Cross talk
f = 1KHz
50
70
dB
ISB
St-by current consumption
St-by = LOW
100
μA
VSB out
St-by out threshold voltage
(Amp: ON)
3.5
V
VSB IN
St-by in threshold voltage
(Amp: OFF)
1.5
V
AM
Mute attenuation
VO = 1 Vrms
80
90
dB
VM out
Mute out threshold voltage
(Amp: play)
3.5
V
VM in
Mute in threshold voltage
(Amp: mute)
1.5
V
Im (L)
Muting pin current
VMUTE = 1.5 V; (source current)
5
10
16
μA
ICDOFF
Clipping detector "OFF"
output average current
THD = 1 % (2)
100
μA
ICDON
Clipping Detector "ON"
Output Average Current
THD = 10 % (2)
100
240
350
μA
1.
Saturated square wave output.
2.
Diagnostics output pulled-up to 5 V with 10 k
Ω series resistor.
Table 4.
Electrical characteristcs (continued)
(VS = 14.4 V; f = 1 kHz; Rg = 600 Ω; RL = 4 Ω; Tamb = 25 °C; Refer to the test and application
circuit (Figure 3), unless otherwise specified).
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
IN1
0.1
μF
C9
1
μF
IN2
C2 0.1
μF
OUT1
OUT2
IN3
C3 0.1
μF
IN4
C4 0.1
μF
OUT3
OUT4
D94AU179B
C5
0.1
μF
C6
47
μF
SVR
TAB
Vcc1-2
Vcc3-4
C8
0.1
μF
C7
2200
μF
C10
1
μF
ST-BY
R1
10K
R2
47K
MUTE
C1
14
15
12
11
22
4
13
S-GND
16
10
25
1
DIAGNOSTICS
620
9
8
7
5
2
3
17
18
19
21
24
23
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