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PDF ( 数据手册 , 数据表 ) L-4863

零件编号 L-4863
描述 Dual 2.2W Audio Amplifier Plus Stereo Headphone Function
制造商 Unisonic Technologies
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L-4863 数据手册, 描述, 功能
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UNISONIC TECHNOLOGIES CO., LTD
L4863
DUAL 2.2W AUDIO AMPLIFIER
PLUS STEREO HEADPHONE
FUNCTION
SOP-16
CMOS IC
SOP-18
DESCRIPTION
The UTC L4863 is a dual bridge-connected audio power
amplifier. It combines dual bridge speaker amplifiers and stereo
headphone amplifiers on one chip to simplify audio system design.
In addition, the headphone input pin allows the amplifiers to
operate in single-ended mode when driving stereo headphones.
The IC could deliver different power by packages as below (when
connected to a 5V supply with less than 1.0% THD+N.):
- HTSSOP-20, 4load: 2.2W
- HTSSOP-20, 3load: 2.5W(with forced-air cooled)
- SOP/DIP , 8load: 1.1W.
The UTC L4863 features an externally controlled, low-power
consumption shutdown mode, a stereo headphone amplifier mode,
and thermal shutdown protection. It also utilizes circuitry to reduce
“clicks and pops” during device turn-on.
FEATURES
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* “Click and pop” suppression
* Thermal shutdown protection
* Unity-gain stable
* Stereo headphone amplifier mode
DIP-16
HTSSOP -20
*Pb-free plating product number: L4863L
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ORDERING INFORMATION
Order Number
Normal
Lead Free Plating
Package
L4863-D16-T
L4863L-D16-T
DIP-16
L4863-S16-R
L4863L-S16-R
SOP-16
L4863-S16-T
L4863L-S16-T
SOP-16
L4863-S18-R
L4863L-S18-R
SOP-18
L4863-S18-T
L4863L-S18-T
SOP-18
L4863-N20-R L4863L-N20-R HTSSOP-20
L4863-N20-T
L4863L-N20-T HTSSOP-20
Packing
Tube
Tape Reel
Tube
Tape Reel
Tube
Tape Reel
Tube
LM4863L-D16-T
(1)Packing Type
(2)Package Type
(3)Lead Plating
(1) R: Tape Reel, T: Tube
(2) D16: DIP-16, S16: SOP-16, S18: SOP-18,
N 20: HTSSOP-20
(3) L: Lead Free Plating, Blank: Pb/Sn
DataSheet4U.cwowmw.unisonic.com.tw
Copyright © 2005 Unisonic Technologies Co., Ltd
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L-4863 pdf, 数据表
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L4863
TYPICAL CHARACTERISTICS(Cont.)
2
1.75
1.5
1.25
Output Power vs Supply Voltage
VDD=5V
f=1kHz
RL=8
Bridged Load
BW<80kHz
1 10% THD+N
0.75
0.5
0.25
1% THD+N
0 2 2.5 3 3.5 4 4.5 5 5.5
Supply Voltage (V)
CMOS IC
Output Power vs Supply Voltage
0.3
VDD=5V
0.25 f=1kHz
RL=16
0.2
Single Ended
BW<80kHz
0.15
10% THD+N
0.1
0.05
1% THD+N
0 2 2.5 3 3.5 4 4.5 5 5.5
Supply Voltage (V)
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0.15
0.125
0.1
0.075
0.05
0.025
Output Power vs Supply Voltage
VDD=5V
f=1kHz
RL=32
Single Ended
BW<80kHz
1.75
1.5
1.2
5
10% THD+N
1
DataSheet4U.com0.75
1% THD+N
0.5
0.25
Output Power vs Supply Voltage
VDD=5V
f=1kHz
AVD=2
Bridged Load
BW<80kHz
10% THD+N
1% THD+N
0 2 2.5 3 3.5 4 4.5 5 5.5
Supply Voltage (V)
0810
20 30 40 50 60
Load Resistance()
70
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Output Power vs Load resistance
1
VDD=5V
f=1kHz
0.8 AV=-1
Single Ended
0.6 BW<80kHz
0.4
10% THD+N
0.2
1% THD+N
0
0 10 20 30 40 50 60 70
Load Resistance()
Output Power vs Supply Voltage
0.7
0.6 RL=8
0.5
0.4
0.3
0.2
0.1
0
2
RL=16
RL=32
VDD=5V
f=1kHz
THD+N1.0%
Bridged Load
BW<80kHz
2.5 0.5 0.75 1
Output Power (W)
1.25
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UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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