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參數(shù)資料
| 型號： | TDA7250 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 100 W, 2 CHANNEL, AUDIO AMPLIFIER, PDIP20 |
| 封裝： | DIP-20 |
| 文件頁數(shù)： | 7/11頁 |
| 文件大?。?/td> | 652K |
| 代理商： | TDA7250 |
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Product(s)
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ELECTRICAL CHARACTERISTICS (Tamb = 25
°C, Vs = ± 35 V, play mode, unless otherwise
specified)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
Vs
Supply Voltage
± 10
± 45
V
Id
Quiescent Drain Current
Stand-by Mode
8
mA
Play Mode
10
14
Ib
Input Bias Current
0.2
1
A
Vos
Input Offset Voltage
1
± 10
mV
Ios
Input Offset Current
100
200
nA
Gv
Open Loop Voltage Gain
f = 100 Hz
90
dB
f = 10 kHz
60
eN
Input Noise Voltage
RG = 600
B = 20 Hz to 20 kHz
3
V
SR
Slew Rate
10
V/
s
d
Total Harmonic Distortion
Gv = 26 dB, Po = 40 W
f = 1 kHz
f = 20 kHz
0.004
0.03
%
Vopp
Output Voltage Swing
60
Vpp
Po
Output Power (*)
Vs =
± 35 V, RL = 8
Vs =
± 30 V, RL = 8
Vs =
± 35 V, RL = 4
60
40
100
W
Io
Output Current
± 5mA
SVR
Supply Voltage Rejection
f = 100 Hz
75
dB
Cs
Channel Separation
f = 1 kHz
75
dB
MUTE / STANDBY/ PLAY FUNCTIONS
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
Ii
Input Current (pin 5)
0.1
A
Vth
Comparator
Standby
/
Mute
Threshold (**)
1.0
1.25
1.5
V
H
Hysteresis Standby / Mute
200
mV
Vth
Comparator Mute / Play
Threshold (**)
2.4
3.0
3.6
V
H
Hysteresis Mute / Play
300
mV
Mute Attenuation
f = 1 kHz
60
dB
Vi
Input Voltage Max. (pin 5)
12 (**)
V
CURRENT SURVEY CIRCUITRY
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
Comparator Reference
to + VS
to – VS
0.8
1
1.4
V
td
Delay Time
10
s
(*) Application circuit of fig. 1
f = 1 KHz ;
d = 0.1 % ;
Gv =26 dB.
(**) Referred to
Vs.
QUIESCENT CURRENT CONTROL
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
Capacitor Current
Charge
Discharge
30
250
60
500
A
Comparator Reference
to + VS
to – VS
10
20
10
25
mV
TDA7250
5/11
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