参数资料
型号: TDA7400
厂商: STMICROELECTRONICS
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP44
封装: 10 X 10 MM, TQFP-44
文件页数: 24/28页
文件大小: 274K
代理商: TDA7400
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
VOLUME CONTROL
GMAX
Max Gain
13
15
17
dB
AMAX
Max Attenuation
70
79
dB
ASTEP
Step Resolution
0.5
1
1.5
dB
EA
Attenuation Set Error
G = -20 to 20dB
-1.25
0
1.25
dB
G = -60 to 20dB
-4
0
3
dB
ET
Tracking Error
2dB
VDC
DC Steps
Adjacent Attenuation Steps
0.1
3
mV
From 0dB to GMIN
0.5
5
mV
SOFT MUTE
AMUTE
Mute Attenuation
80
100
dB
TD
Delay Time
T1
0.48
1
ms
T2
0.96
2
ms
T3
20
40.4
60
ms
T4
200
324
600
ms
VTHlow
Low Threshold for SM Pin
1
1V
VTHhigh
High Threshold for SM Pin
2.5
V
RPD
Internal Pull-up Resistor
70
100
130
K
BASS CONTROL
CRANGE
Control Range
±13
±15
±17
dB
ASTEP
Step Resolution
0.5
1
1.5
dB
fC
Center Frequency
fC1
54
60
66
Hz
fC2
63
70
77
Hz
fC3
72
80
88
Hz
fC4
90
100
(150)
(2)
110
Hz
QBASS
Quality Factor
Q1
0.9
1
1.1
Q2
1.11.251.4
Q3
1.3
1.5
1.7
Q4
1.8
2
2.2
DCGAIN
Bass-Dc-Gain
DC = off
-1
0
1
dB
DC = on
3.5
4.4
5.5
dB
TREBLE CONTROL
CRANGE
Control Range
±13
±15
±17
dB
ASTEP
Step Resolution
0.5
1
1.5
dB
fC
Center Frequency
fC1
8
10
12
KHz
fC2
10
12.5
15
KHz
fC3
12
15
18
KHz
fC4
14
17.5
21
KHz
1) The SM pin is active low (Mute = 0)
2) See note in Programming Part
TDA7400
5/28
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