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LM4880L-SH2-R 数据表(PDF) 6 Page - Unisonic Technologies

部件名 LM4880L-SH2-R
功能描述  DUAL 250mW AUDIO POWER AMPLIFIER WITH SHUTDOWN MODE
PDF  12 Pages
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制造商  UTC [Unisonic Technologies]
网页  http://www.utc-ic.com
标志 UTC - Unisonic Technologies

LM4880L-SH2-R 数据表(HTML) 6 Page - Unisonic Technologies

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LM4880
CMOS IC
UNISONICTECHNOLOGIESCO.,LTD
6 of 12
www.unisonic.com.tw
QW-R502-033,C
AUTOMATIC SHUTDOWN CIRCUIT
+
HEADPHONE JACK
+
20kΩ
0.33µF
VDD
VDD
100µF
TO CHANNEL B
OUTPUT(PIN 7)
VIA COUPLING
CAPACITOR
Fig. 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
+
Fig. 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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