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TDA7462 数据表(PDF) 6 Page - STMicroelectronics

部件名 TDA7462
功能描述  DUAL AUDIOPROCESSOR WITH COMPANDER AND SUBWOOFER OUTPUT
PDF  25 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TDA7462 数据表(HTML) 6 Page - STMicroelectronics

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ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
FADER OUTPUTS
VCLIP
Clipping Level
d = 0.3%
2.2
2.6
VRMS
RL
Output Load Resistance
2
K
Ω
CL
Output Load Capacitance
10
nF
ROUT
Output Impedance
30
100
Ω
VDC
DC Voltage Level
4.3
4.5
4.7
V
PAUSE DETECTOR
VTH
Zero Crossing Threshold
Window 1
20
mV
Window 2
40
mV
Window 3
80
mV
Window 4
160
mV
IDELAY
Pull-Up Current
15
25
35
µA
VTHP
Pause Threshold
3.0
V
VOICE BANDPASS
fHP
Highpass corner frequency
fHP1
81
90
99
Hz
fHP2
162
180
198
Hz
fHP3
117
130
143
Hz
fHP4
234
260
286
Hz
fLP
Lowpass corner frequency
fLP1
2.7
3
3.3
kHz
fLP2
5.4
6
6.6
kHz
SUBWOOFER ATTENUATORS
CRANGE
Control Range
-53
-50
-47
dB
ASTEP
Step Resolution
2
0.5
1
1.5
dB
AMUTE
Output Mute Attenuation
80
90
dB
EE
Attenuation Set Error
2
dB
VDC
DC Steps
Adjacent Attenuation Steps
1
5
mV
DIFFERENTIAL OUTPUTS
RL
Load resistance at each output
1VRMS; AC coupled; THD = 1%
1
k
Ω
2VRMS; AC coupled; THD = 1%
2
k
Ω
RDL
Load resistance differential
1VRMS; AC coupled; THD = 1%
2
k
Ω
2VRMS; AC coupled; THD = 1%
4
k
Ω
CL
Capacitive load at each output
CLMIN at each Output to
Ground
470
pF
CLMAX
Capacitive load at each output
CLMAX at each Output to Ground
10
nF
CDLMAX
Capacitive load differential
CLMAX between Output
terminals
5nF
VOffset
DC Offset at pins
Output muted
-10
10
ROUT
Output Impedance
30
100
Ω
VDC
DC Voltage Level
4.3
4.5
4.7
V
eNO
Output Noise
Output muted
6
15
µV
COMPANDER
GMAX
Max. Compander Gain
Vi < -40dB
19
dB
23
dB
tATT
Attack time
tAtt1
6ms
tAtt2
12
ms
tAtt3
24
ms
tAtt4
49
ms
tRel
Release time
tRel1
195
ms
tRel2
390
ms
tRel3
780
ms
tRel4
1.56
s
VREF
Compander Reference Input-
Level (equals 0dB)
1kHz sine-wave
0.5
VRMS
CF
Compression Factor
Output Signal/Input Signal
0.5
2) Steps are increasing if the attenuation is higher than 24dB.
TDA7462
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