TDA7240 データシートの表示（PDF） - STMicroelectronics
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TDA7240 Datasheet PDF : 8 Pages
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TDA7240A
ELECTRICAL CHARACTERISTICS (refer to the circuit of fig. 1, Tamb = 25°C, Rth (heatsink) = 4°C/W,
Vs = 14.4V)
Symbol
Parameter
Test Conditions
Vs Supply Voltage
Vos Output Offset Voltage
Id
Total Quiescent Current RL = 4Ω
Po Output Power
f = 1kHz; d = 10%
d Distortion
RL = 4Ω
Po = 50mW to 12W
RL = 4Ω
RL = 8Ω
f = 1kHz
GV Voltage Gain
RL = 8Ω
Po = 50mW to 12W
f = 1KHz
f = 1kHz
SVR
EN
Supply Voltage Rejection f = 100Hz
Total Input Noise
Rg = 10KΩ
Rg = 10KΩ
(*)
(**)
η Efficiency
Isb Stand-by Current
RL = 4Ω
f = 1KHz
Ri Input Resistance
f = 1kHz
Vi Input Sensitivity
f = 1kHz; Po = 2W; RL = 4Ω
fL
Low Frequency Roll Off Po = 15W; RL = 4Ω
(–3dB)
fH High Frequency Roll Off Po = 15W; RL = 4Ω
(–3dB)
As Stand-by Attenuation
VTH (pin2) Stand-by Threshold
Vo = 2Vrms
(*) B= Curve A
(**) B = 22Hz to 22 KHz
Min.
18
10
39.5
35
70
25
70
Typ.
65
20
12
0.1
0.05
40
40
2
3
65
200
28
90
Max.
18
150
120
0.5
0.5
40.5
10
30
1
Unit
V
mV
mA
W
W
%
%
dB
dB
µV
µV
%
µA
kΩ
mV
Hz
kHz
dB
V
Figure 2 : P.C. Board and Components layout of the Circuit of Fig. 1.(1:1scale)
3/8
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