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參數(shù)資料
| 型號： | TDA7342 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻控制 |
| 英文描述： | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PQFP32 |
| 封裝： | TQFP-32 |
| 文件頁數(shù)： | 10/14頁 |
| 文件大小： | 316K |
| 代理商： | TDA7342 |
ELECTRICAL CHARACTERISTICS (continued.)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
ZERO CROSSING MUTE
VTH
Zero Crossing Threshold
(note 1)
WIN = 11
20
mV
WIN = 10
40
mV
WIN = 01
80
mV
WIN = 00
160
mV
AMUTE
Mute Attenuation
80
100
dB
VDC
DC Step
0dB to Mute
0
3
mV
SOFT MUTE
AMUTE
Mute Attenuation
45
60
dB
TDON
ON Delay Time
CCSM = 22nF; 0 to -20dB; I = IMAX
0.7
1
1.7
ms
CCSM = 22nF; 0 to -20dB; I = IMIN
20
35
55
ms
TDOFF
OFF Current
VCSM = 0V; I = IMAX
25
50
75
A
VCSM = 0V; I = IMIN
1
A
VTHSM
Soft Mute Threshold
1.5
2.5
3.5
V
RINT
Pullup Resistor (pin 21)
(note 2)
35
50
65
K
VSMH
(pin 21) Level High
3.5
V
VSML
(pin 21) Level Low
Soft Mute Active
1
V
BASS CONTROL
BBOOST
Max Bass Boost
15
18
20
dB
BCUT
Max Bass Cut
-8.5
-10
-11.5
dB
Astep
Step Resolution
1
2
3
dB
Rg
Internal Feedback Resistance
45
65
85
K
TREBLE CONTROL
CRANGE
Control Range
±13
±14
±15
dB
Astep
Step Resolution
1
2
3
dB
SPEAKER ATTENUATORS
CRANGE
Control Range
35
37.5
40
dB
Astep
Step Resolution
0.5
1.25
2.00
dB
AMUTE
Output Mute Attenuation
Data Word = XXX11111
80
100
dB
EA
Attenuation Set Error
1.25
dB
VDC
DC Steps
Adjacent Attenuation Steps
0
3
mV
AUDIO OUTPUT
Vclip
Clipping Level
d = 0.3%
2.1
2.6
Vrms
RL
Output Load Resistance
2
K
RO
Output Impedance
30
100
VDC
DC Voltage Level
3.5
3.8
4.1
V
TDA7342
5/14
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