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TDA7437N 数据表(PDF) 5 Page - STMicroelectronics

部件名 TDA7437N
功能描述  DIGITALLY CONTROLLED AUDIO PROCESSOR
PDF  23 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TDA7437N 数据表(HTML) 5 Page - STMicroelectronics

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TDA7437N
VDC
DC Step
0dB to Mute
0.1
3
mV
SOFT MUTE
AMUTE
Mute Attenuation
50
65
dB
TDON
ON Delay Time
CCSM = 22nF; 0 to -20dB; I = IMAX
0.8
1.5
2.0
ms
CCSM = 22nF; 0 to -20dB; I = IMIN
25
45
60
ms
TDOFF
OFF Current
VCSM = 0V; I = IMAX
20
40
60
mA
VCSM = 0V; I = IMIN
2
µA
RINT
Pullup Resistor (pin 28)
(note 2)
100
K
Ω
VSMH
(pin 28) Level High
3.5
V
VSML
(pin 28) Level Low
Soft Mute Active
1
V
BASS CONTROL
Crange
Control Range
±11.5
±14
±16
dB
Astep
Step Resolution
1
2
3
dB
Rg
Internal Feedback Resistance
31
44
57
K
Ω
MIDDLE CONTROL
Crange
Control Range
±11.5
±14
±16
dB
Astep
Step Resolution
1
2
3
dB
Rg
Internal Feedback Resistance
17.5
25
32.5
K
Ω
TREBLE CONTROL
CRANGE
Control Range
±13
±14
±15
dB
Astep
Step Resolution
1
2
3
dB
SPEAKER ATTENUATORS
CRANGE
Control Range
79
dB
Astep
Step Resolution
AV = 0 to -40dB
0.5
1
1.5
dB
AMUTE
Output Mute Attenuation
Data Word = 1111XXXX
80
100
dB
EA
Attenuation Set Error
AV = 0 to -40dB
1.5
dB
VDC
DC Steps
Adjacent Attenuation Steps
0.1
3
mV
AUDIO OUTPUT
Vclip
Clipping Level
d = 0.3%
2.1
2.6
Vrms
RL
Output Load Resistance
2
K
Ω
RO
Output Impedance
50
90
140
Ω
VDC
DC Voltage Level
3.5
3.8
4.1
V
PAUSE DETECTOR
VTH
Pause Threshold
WIN = 11
35
mV
WIN = 10
70
mV
WIN = 01
140
mV
WIN = 00
280
mV
IDELAY
Pull-Up Current
15
25
35
µA
VTHP
Pause Threshold
3.0
V
ELECTRICAL CHARACTERISTICS (continued)
(AVDD, DVDD = 9V; RL = 10KΩ; Rg = 50Ω; Tamb = 25°C; all gains = 0dB; f = 1KHz. Refer to the test circuit,
unless otherwise specified.)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit



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