TDA7402 查看數據表（PDF） - STMicroelectronics
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TDA7402 Datasheet PDF : 69 Pages
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TDA7402
2
Electrical specifications
Electrical specifications
VS = 9V; Tamb = 25°C; RL = 10kΩ; all gains = 0dB; f = 1kHz; unless otherwise specified.
Table 2.
Symbol
Electrical characteristics
Parameter
Test condition
Min. Typ. Max. Unit
Input selector
Rin Input resistance
all single ended Inputs
70 100 130 kΩ
VCL Clipping level
SIN Input separation
t(s) GIN MIN Min. input gain
c GIN MAX Max. input gain
du GSTEP Step resolution
Pro VDC DC steps
te Voffset Remaining offset with autozero
ole Differential stereo inputs
Adjacent gain steps
GMIN to GMAX
2.2 2.6
80 100
VRMS
dB
-1
0
+1
dB
13
15
17
dB
0.5
1
1.5
dB
-5
1
5
mV
-10
6
10
mV
0.5
mV
bs Input resistance
O Rin (see Figure 3)
Differential
70 100 130 kΩ
- -1
0
1
dB
ct(s) GCD Gain
only at true differential input
-5
-6
7
dB
-11
-12
-13
dB
du VCM = 1VRMS @ 1kHz
46
70
dB
ro CMRR Common mode rejection ratio
VCM = 1VRMS @ 10kHz
46
60
dB
P eNO Output-noise @ speaker outputs 20Hz - 20kHz, flat; all stages 0dB
9
15
µV
te Differential mono inputs
ole Rin Input impedance
ObsCMRR Common mode rejection ratio
Differential
VCM = 1VRMS @ 1kHz
40
56
72
kΩ
40
70
dB
VCM = 1VRMS @ 10kHz
40
60
dB
Beep control
VRMS Beep level
fBeep Beep frequency
Mix-gain = 6dB
fBeep1
fBeep2
fBeep1
fBeep1
250 350 500 mV
570 600 630 Hz
740 780 820 Hz
1.48 1.56 1.64 kHz
2.28 2.4 2.52 kHz
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