9
AUDIOGRAM3
IC BLOCK DIAGRAM
（
IC
ブロック図）
BA10339F-E2
(X6266A0R)
MIX3: IC402
Ground Sense Comparator
1
2
3
4
5
6
7
OUT2
OUT1
Vcc
-IN1
+IN1
-IN2
+IN2
14
13
12
11
10
9
8
OUT3
OUT4
V
EE
+IN4
-IN4
+IN3
-IN3
+
-
+
-
+
-
+
-
1
1.5A
Maximum
ON duty 9.1
OSC BLOCK
4
3
2
8
5
6
7
V
+
Es
GND
PWM
Logic
R
S
Q
Vref
1.25V
±
2%
C
D
C
T
Cs
S
I
IN
+
Vth=300mV
Ipk Sense
PWM COMP
ERR. AMP
160
Ω
1
2
3
4
8
7
6
5
Cs
C
T
GND
C
D
S
I
V
+
IN
+
Es
NJM2374AM-TE1
(X9482A00)
PSUSB: IC401, IC501, IC601
PWM DC/DC Converter
NJM072BM-E-TE1
(X4543A01)
MIX3: IC101
Dual Operational Amplifier
1
2
3
4
8
7
6
5
A Output
+V
A +Input
V-
V+
B Output
B -Input
B +Input
A -Input
+
-
+
-
NJM2068MD-TE2
(X3505A00)
MIX3: IC201
PSUSB: IC201, IC202
Dual Operational Amplifier
1
2
3
4
-V
8
7
6
5
Output A
+V
Non-Inverting
Input A
-DC Voltage Supply
+DC Voltage
Supply
Output B
Inverting
Input B
Non-Inverting
Input B
Inverting
Input A
+
-
+
-
NJM4580L
(XF195A00)
MIX3: IC303
Dual Operational Amplifier
1
A
2
3
4
5
6
7
8
OUT
A
-IN
A
+IN
A
+IN
B
-IN
B
OUT
B
-V
+V
-
+
B
-
+
BA4560RF-E2
(X6897A00)
MIX3: IC301, IC302, IC401
Dual Operational Amplifier
1
2
3
4
-V
8
7
6
5
Output 1
+V
+Input 1
VEE
VCC
Output 2
-Input 2
+Input 2
-Input 1
+
-
+
-
1
2
3
4
8
7
6
5
GND
EN1
EN2
/OC1
OUT1
OUT2
/OC2
IN
BD2056AFJ-E2
(X9691A00)
PSUSB: IC301
USB High Side Switch
Gate
Logic1
TSD1
TSD2
Charge
pump1
OCD1
OCD2
SW1
SW2
UVLO
8
3
2
4
1
7
6
5
/OC1
EN1
EN2
GND
IN
/OC2
OUT1
OUT2
Charge
pump2
Gate
Logic2
