TDA7405 查看數據表（PDF） - STMicroelectronics
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TDA7405 Datasheet PDF : 57 Pages
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TDA7405
Table 5. ELECTRICAL CHARACTERISTICS (continued)
(VS=9V; Tamb=25°C; RL=10kΩ; all gains=0dB; f=1kHz; unless otherwise specified)
Symbol
Parameter
Test Condition
Min.
fC Center Frequency
fC1
54
fC2
63
fC3
72
fC4
81
fC5
90
fC6
117
fC7
135
fC8
180
QBASS Quality Factor
Q1
0.9
Q2
1.1
Q3
1.3
Q4
1.8
DCGAIN Bass-DC-Gain
DC = off
-1
DC = on
4
TREBLE CONTROL
CRANGE Control Range
±14
ASTEP Step Resolution
0.5
fC Center Frequency
fC1
8
fC2
10
fC3
12
fC4
14
PAUSE DETECTOR4)
VTH Zero Crossing Threshold
Window 1
Window 2
Window 3
IDELAY Pull-Up Current
15
VTHP Pause Threshold
4. If configured as Pause-Output
SPEAKER ATTENUATORS
Rin Input Impedance
35
GMAX Max. Gain
14
AMAX Max. Attenuation
-83
ASTEP Step Resolution
0.5
AMUTE Output Mute Attenuation
80
Typ.
60
70
80
90
100
130
150
200
1
1.25
1.5
2
0
4.4
+15
1
10
12.5
15
17.5
40
80
160
25
3.0
50
15
-79
1
90
Max. Unit
66
Hz
77
Hz
88
Hz
99
Hz
110
Hz
143
Hz
165
Hz
220
Hz
1.1
1.4
1.7
2.2
+1
dB
6
dB
±16 dB
1.5 dB
12 kHz
15 kHz
18 kHz
21 kHz
mV
mV
mV
35 µA
V
65 kΩ
16 dB
-75 dB
1.5 dB
dB
7/57
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