FAN8042 데이터 시트보기 (PDF) - Fairchild Semiconductor
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FAN8042 Datasheet PDF : 18 Pages
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Internal Block Diagram
OPIN1+ OPIN1- OPOUT1 SVCC VREF
48
47
46
45
44
GND
43
GND OPIN2+ OPIN2- OPOUT2 PS
42
41
40
39
38
PVCC1
37
IN1+ 1
IN1- 2
OUT1 3
IN2+ 4
IN2- 5
GND 6
GND 7
OUT2 8
IN3+ 9
IN3- 10
OUT3 11
IN4+ 12
40K
10K
10K
40K
40K
10K
10K
40K
40K
10K
10K
40K
40K
10K
10K
40K
40K
10K
10K
40K
40K
10K
10K
40K
S
M
S
W
C
POWER
SAVE
40K
10K
10K
40K
40K
10K
10K
40K
+
D
-
D
MUTE123 MUTE4 TSD-M
36 DO1+
35 DO1-
34 DO2+
33 DO2-
32 DO3+
31 GND
30 GND
29 DO3-
28 DO4+
27 DO4-
26 DO5+
25 DO5-
13
14
15
16
17
18
IN4- OUT4 CTL FWD REV GND
19
GND
20
21
22
23
24
SGND
MUTE4 TSD-M PVCC2
MUTE123
Note. Detailed circuit of the output power amp
From input opamp
Vref
10K
10K
Pref
10K
10K
40K
−
+
40K
40K
+
−
40K
Pref1 is almost PVCC1 / 2
Pref2 is almost PVCC2 / 2
DO+
DO-
5
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