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TDA7449L 数据表(PDF) 4 Page - STMicroelectronics

部件名 TDA7449L
功能描述  LOW COST DIGITALLY CONTROLLED AUDIO PROCESSOR
PDF  14 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TDA7449L 数据表(HTML) 4 Page - STMicroelectronics

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TDA7449L
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Figure 4. Test Circuit
AUDIO OUTPUTS
VCLIP
Clipping Level
d = 0.3%
2.1
2.6
VRMS
RL
Output Load Resistance
2
K
Ω
RO
Output Impedance
10
40
70
W
VDC
DC Voltage Level
3.8
V
GENERAL
ENO
Output Noise
All gains = 0dB;
BW = 20Hz to 20KHz flat
515
µV
Et
Total Tracking Error
AV = 0 to -24dB
0
1
dB
AV = -24 to -47dB
0
2
dB
S/N
Signal to Noise Ratio
All gains 0dB; VO = 1VRMS ;
106
dB
SC
Channel Separation Left/Right
80
100
dB
d
Distortion
AV = 0; VI = 1VRMS ;
0.01
0.08
%
BUS INPUT
VIL
Input Low Voltage
1
V
VIH
Input High Voltage
3
V
IIN
Input Current
VIN = 0.4V
-5
5
µA
VO
Output Voltage SDA
Acknowledge
IO = 1.6mA
0.4
0.8
V
0/30dB
2dB STEP
MUXOUTL
VOLUME
VOLUME
TREBLE
TREBLE
TREBLE(L)
BASS
BASS
MUXOUTR
TREBLE(R)
SPKR ATT
LEFT
LOUT
SCL
SDA
DIG_GND
ROUT
D98AU849A
I
2CBUS DECODER + LATCHES
100K
100K
G
L-IN1
L-IN2
100K
100K
R-IN2
R-IN1
G
INPUT MULTIPLEXER
+ GAIN
BOUT(L)
SPKR ATT
RIGHT
BOUT(R)
SUPPLY
CREF
AGND
VS
BIN(L)
5
8
9
6
7
19
20
18
4
2
3
11
17
12
13
1
10
16
15
14
RB
RB
VREF
C9
5.6nF
150nF
330nF
R2 2K
C10
5.6nF
150nF
330nF
R1
C3 0.47
µF
C4 0.47
µF
C1 0.47
µF
C2 0.47
µF
C11
10
µF
1
2
3
4
5
RCA
J3
J4
CON3
IN2L
IN1L
GND
GND
GND
IN1L
RCA
J2
J1
CON
IN1R
IN2R
GND
GND
IN1R
1
2
3
4
1
2
3
4
MOUTR
GND
MOUTL
J5
J5
CON4
GND
C5
C6
2K
C8
C7
1
2
3
4
J6
CON4
R3 30
JP1
JUMPER
+9 V
1
2
3
4
J10
CON4
J8
J9
OUT_ R
OUT_L
OUT_R
OUT_L
1
2
+9V
J7
CON2
C13
100nF
C12
22
µF
+V8
GND
Table 5. Electrical Characteristcs (continued)



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