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零件编号
产品描述 (功能)
TDA7490LSA 查看數據表(PDF) - STMicroelectronics
零件编号
产品描述 (功能)
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TDA7490LSA
15W +15W Stereo Class-D Amplifier
STMicroelectronics
TDA7490LSA Datasheet PDF : 13 Pages
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TDA7490LSA
1 Typical application and pin description
1 Typical application and pin description
1.1
typical application
Figure 1. typical application and test circuit for single and split supply
C3 330nF
INPUT1
IN1 5
C5
T2
1nF
EXTERNAL
CLK
REFERENCE 6
R1
C1
27K
100nF
TRIANGLE1 8
R2
C2
22K
330pF
TRIANGLE2 13
R3
C7
22K
330pF
INPUT2
IN2 15
C4 330nF
C6
1nF
GND
12
STBY/MUTE
4
R4 30K
PWM STAGE
DRIVER
OSCILLATOR
DRIVER
PWM STAGE
REGULATOR
R6 10K
14
+5V
7
-5V
BOOSTRAP1
3 +V
CC1
2
C13
100nF
1
OUT1
9 -V
CC
/GND
17 BOOTSTRAP2
18
+VCC2
C12
100nF
19
OUT2
10
16
VREG
C8
2.2
µ
F
STBY
MUTE
C9
100nF
C10
100nF
C11
100nF
R5 10K
-V
CC
/GND
(*) Only for single Supply Solution
(**) To add externally the PCB for Single Supply
+V
CC
C16
33nF
L1 30
µ
C18
560pF
C15 2200
µ
F
C20
220nF
R7
100
-V
CC
/GND
C14 2200
µ
F
C17
33nF
L2 30
µ
C19
560pF
-V
CC
/GND
+V
CC
C21
220nF
R8
100
-V
CC
/GND
R9
1K
(*)
R10
1K
-V
CC
/GND
(**)
LOUDSPEAKER1
1000
µ
F
(**)
LOUDSPEAKER2
1000
µ
F
D99AU1066B
1.2 pin description
Figure 2. pin connection
19
OUT2
18
+VCC2
17
BOOT2
16
VREG
15
IN2
14
+5V
13
TRIANGLE2
12
GND
11
N.C.
10
-VCC
9
-VCC
8
TRIANGLE1
7
-5V
6
REFERENCE
5
IN1
4
ST-BY/MUTE
3
BOOT1
2
+VCC1
1
OUT1
D04AU1542
3/13
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