TDA7490SA Datasheet, PDF (3/13 Pages) STMicroelectronics – 10W +10W Stereo Class-D Amplifier

TDA7490SA
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 -VCC /GND
17 BOOTSTRAP2
18
+VCC2 _C12
100nF
19
OUT2
10
16
VREG
C8
2.2µF
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 30µ
C18
560pF
C15 2200µF
C20
220nF
R7
100
-V_CC/GND
C14 2200µF
C17
33nF
L2 30µ
C19
560pF
-V_CC/GND
+V_CC
C21
220nF
R8
100
-V_CC/GND
R9
1K
(*)
R10
1K
-V_CC/GND
(**) ^LOUDSPEAKER1
1000µF
(**) ^LOUDSPEAKER2
1000µF
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