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7404 데이터 시트보기 (PDF) - STMicroelectronics
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7404
CARRADIO-SIGNAL-PROCESSOR
STMicroelectronics
7404 Datasheet PDF : 26 Pages
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TDA7404D
ELECTRICAL CHARACTERISTICS
(continued)
Symbol
Parameter
Test Conditions
Min.
SOFT STEP
T
SW
Switch time
T
SW1
T
SW2
T
SW3
T
SW4
1) Center frequency 2.4KHz makes 1KHz bottom frequency at low & high frequency boost condition.
2) The SM-Pin is active low (Mute = 0)
BASS CONTROL
C
RANGE
Control Range
+14
A
STEP
Step Resolution
0.5
f
C
Center Frequency
f
C1
54
f
C2
72
f
C3
90
f
C4
180
Q
BASS
Quality Factor
Q
1
0.9
Q
2
1.1
Q
3
1.3
Q
4
1.8
DC
GAIN
Bass-DC-Gain
DC = off
-1
DC = on
4
TREBLE CONTRO
L
C
RANGE
Control Range
+14
A
STEP
Step Resolution
0.5
f
C
Center Frequency
f
C1
8
f
C2
10
f
C3
12
f
C4
14
SPEAKER ATTENUATORS
C
RANGE
Control Range
-53
A
STEP
Step Resolution
only for attenuation up to 24dB
0.5
A
MUTE
Output Mute Attenuation
80
Typ.
0.68
1.26
2.52
5.04
+15
1
60
80
100
200
1
1.25
1.5
2
0
4.4
+15
1
10
12.5
15
17.5
50
1
90
Max.
+16
1.5
66
88
110
220
1.1
1.4
1.7
2.2
1
6
+16
1.5
12
15
18
21
-47
1.5
Unit
ms
ms
ms
ms
dB
dB
Hz
Hz
Hz
Hz
dB
dB
dB
dB
kHz
kHz
kHz
kHz
dB
dB
dB
6/26
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