TDA7437 查看數據表（PDF） - STMicroelectronics
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TDA7437 Datasheet PDF : 23 Pages
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TDA7437
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
SOFT MUTE
AMUTE Mute Attenuation
TDON
ON Delay Time
TDOFF
OFF Current
RINT
Pullup Resistor (pin 28)
VSMH
(pin 28) Level High
VSML
(pin 28) Level Low
BASS CONTROL
Crange
Control Range
Astep
Step Resolution
Rg
Internal Feedback Resistance
MIDDLE CONTROL
Crange
Control Range
Astep
Step Resolution
Rg
Internal Feedback Resistance
TREBLE CONTROL
CRANGE Control Range
Astep
Step Resolution
SPEAKER ATTENUATORS
CRANGE Control Range
Astep
Step Resolution
AMUTE Output Mute Attenuation
EA
Attenuation Set Error
VDC
DC Steps
AUDIO OUTPUT
Vclip
Clipping Level
RL
Output Load Resistance
RO
Output Impedance
VDC
DC Voltage Level
Test Condition
Min.
50
CCSM = 22nF; 0 to -20dB; I = IMAX 0.8
CCSM = 22nF; 0 to -20dB; I = IMIN 25
VCSM = 0V; I = IMAX
20
VCSM = 0V; I = IMIN
(note 2)
3.5
Soft Mute Active
±11.5
1
31
±11.5
1
17.5
±13
1
AV = 0 to -40dB
0.5
Data Word = 1111XXXX
80
AV = 0 to -40dB
Adjacent Attenuation Steps
d = 0.3%
2.1
2
50
3.5
Typ.
65
1.5
45
40
2
100
±14
2
44
±14
2
25
±14
2
79
1
100
0.1
2.6
90
3.8
Max.
2.0
60
60
1
±16
3
57
±16
3
32.5
±15
3
1.5
1.5
3
140
4.1
Unit
dB
ms
ms
µA
µA
KΩ
V
V
dB
dB
KΩ
dB
dB
KΩ
dB
dB
dB
dB
dB
dB
mV
Vrms
KΩ
Ω
V
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