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參數(shù)資料
| 型號： | TDA7440D |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | TONE CONTROL DIGITALLY CONTROLLED AUDIO PROCESSOR |
| 中文描述： | 音調(diào)控制數(shù)控音頻處理器 |
| 文件頁數(shù)： | 4/17頁 |
| 文件大?。?/td> | 212K |
| 代理商： | TDA7440D |
TDA7440D
4/17
Figure 4. Test Circuit
AUDIO OUTPUTS
V
CLIP
R
L
R
O
V
DC
GENERAL
E
NO
Clipping Level
d = 0.3%
2.1
2.6
Vrms
K
V
Output Load Resistance
Output Impedance
2
10
30
50
DC Voltage Level
3.5
3.8
4.1
Output Noise
All gains = 0dB;
BW = 20Hz to 20KHz flat
A
V
= 0 to -24dB
A
V
= -24 to -47dB
All gains 0dB; V
O
= 1Vrms
5
15
μ
V
E
t
Total Tracking Error
0
0
1
2
dB
dB
S/N
S
C
d
Signal to Noise Ratio
Channel Separation Left/Right
95
80
106
100
dB
dB
Distortion
A
V
= 0; V
I
= 1Vrms
0.01
0.08
%
BUS INPUT
V
IL
V
IH
I
IN
V
O
Input Low Voltage
1
V
Input High Voltage
3
V
μ
A
V
Input Current
Output Voltage SDA
Acknowledge
V
IN
= 0.4V
I
O
= 1.6mA
-5
0
5
0.4
0.8
Table 5. Electrical Characteristcs
(continued)
Refer to the test circuit T
amb
= 25°C, V
S
= 9V, R
L
= 10K
, R
G
= 600
, all controls flat (G = 0dB), unless
otherwise specified.
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
10
μ
F
5.6nF
100nF
100nF
5.6K
2.2
μ
F
5.6nF
2.2
μ
F
100nF
100nF
5.6K
0.47
μ
F
0.47
μ
F
0.47
μ
F
0.47
μ
F
0.47
μ
F
0.47
μ
F
0.47
μ
F
0.47
μ
F
0/30dB
2dB STEP
MUXOUTL
INL
VOLUME
VOLUME
TREBLE
TREBLE
TREBLE(L)
MUXOUTR
INR
TREBLE(R)
BOUT(L)
SPKR ATT
LEFT
LOUT
SCL
SDA
DIG_GND
ROUT
D98AU885
I
2
CBUS DECODER + LATCHES
100K
100K
100K
100K
G
L-IN1
L-IN2
L-IN3
L-IN4
100K
100K
100K
100K
R-IN1
R-IN2
R-IN3
R-IN4
G
INPUT MULTIPLEXER
+ GAIN
BASS
BIN(L)
BASS
SPKR ATT
RIGHT
BOUT(R)
BIN(R)
SUPPLY
CREF
AGND
V
S
27
4
5
6
7
3
2
1
28
21
22
20
26
24
25
10
11
19
12
13
23
8
9
18
14
15
R
B
R
B
V
REF
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