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LM4880 Datasheet(PDF) 4 Page - Unisonic Technologies

Part # LM4880
Description  DUAL 250m W AUDIO POWER AMPLIFIER WITH SHUTDOWN MODE
PDF  10 Pages
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Manufacturer  UTC [Unisonic Technologies]
Direct Link  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

LM4880 Datasheet(HTML) 4 Page - Unisonic Technologies

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UTCLM4880
CMOS IC
UTC UNISONIC TECHNOLOGIES CO., LTD.
4
QW-R502-033,A
AUTOMATIC SHUTDOWN CIRCUIT
+
HEADPHONE JACK
+
20kΩ
0.33μF
VDD
VDD
100μF
TO CHANNEL B
OUTPUT(PIN 7)
VIA COUPLING
CAPACITOR
Figure 2. Automatic Shutdown Circuit
Rp
1MΩ
1kΩ
RO
AUDIO
INPUT
+
-
20kΩ
+
3
2
4
5
1
8
0.1μF
100kΩ
Rsd
UTC
LM4880
1μF
AUTOMATIC SWITCHING CIRCUIT
+
+
VDD
100µF
+
-
1
8
7
2
3
6
5
+
Figure 3.Automatic Switching Circuit
0.33μF
20kΩ
+
RL
8Ω
VDD
0.1µF
20kΩ
Rp
1MΩ
1kΩ
RO
HEADPHONE JACK
TO UTC LM4880
CHANNEL B OUTPUT
(PIN 7) VIA COUPLING
CAPACITOR
20kΩ
LM4861
4
AUDIO
INPUT
1μF
0.33μF
+
-
20kΩ
+
3
2
4
5
1
8
0.1μF
100kΩ
Rsd
UTC
LM4880
1μF
VDD



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