TDA7409 查看數據表（PDF） - STMicroelectronics
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TDA7409 Datasheet PDF : 25 Pages
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TDA7409
ELECTRICAL CHARACTERISTICS (VS =9V; TAMB=25 ;RL=10kΩ; all gains = 0dB; f = 1kHz; unless otherwise
specified)
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
INPUT SELECTOR
Rin Input Resistance
all single ended Inputs
70
100 130
kΩ
VCL Clipping Level
2.20 2.60
VRMS
SIN Input Separation
80
100
dB
GIN MIN Min. Input Gain
-1
0
1
dB
GIN MAX Max. Input Gain
18
20
22
dB
GSTEP Step Resolution
0.5
1
1.5
dB
VDC DC Steps
Adjacent Gain Steps
GMIN to GMAX
-5
1
5
mV
-10
5
10
mV
Voffset Remaining offset with AutoZero
0.5
mV
BEEP CONTROL
VRMS Beep Level
250 350 500 mV
fB
Beep Frequency
fB1
740 781 820
Hz
fB2
1.48 1.56 1.64 kHz
fB3
1.7
1.8
1.9
kHz
MIXING CONTROL
MLEVEL Mixing Level
Main / Mix-Source
Main / Mix-Source
0/00
dB
-0.5/- -3.5/- -2.5/- dB
10.6 9.6
8.6
Main / Mix-Source
-5/-5 -6/-6 -7/-7 dB
Main / Mix-Source
-11/- -12/- -13/- dB
1.5
2.5
3.5
VOLUME CONTROL
GMAX Max. Gain
28
30
32
dB
AMAX Max. Attenuation
-83
-79
-75
dB
ASTEP Step Resolution
0.5
1
1.5
dB
EA Attenuation Set Error
G = -20 to +20dB
-1
0
1
dB
G = -80 to -20dB
-4
0
3
dB
ET Tracking Error
2
dB
4/25
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