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PDF PA4867 Data sheet ( Hoja de datos )
| Número de pieza | PA4867 | |
| Descripción | DUAL 2.1W AUDIO AMPLIFIER PLUS STEREO HEADPHONE FUNCTION | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de PA4867 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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UNISONIC TECHNOLOGIES CO., LTD
PA4867
DUAL 2.1W AUDIO AMPLIFIER
PLUS STEREO HEADPHONE
FUNCTION
CMOS IC
DESCRIPTION
The UTC PA4867 is a stereo audio power amplifier capable of
delivering typically 2.1W to a 4Ω load or 2.4W to a 3Ω load each
channel with less than 1.0% THD+N using a 5V power supply. UTC
PA4867 has a new circuit topolopy which can eliminate headphone
output coupling capacitors. And an internal input MUX allows two
sets of stereo inputs to the amplifier.
The UTC PA4867 has integrated depop circuitry that virtually
eliminates transients that cause noise in the speakers during power
up and when using the shutdown modes.
FEATURES
* Operating voltage range VDD=2V~5.5V
* Output power:
-2.4W(typ.)@5V into 3Ω with 1% THD+N max (1kHz)
-2.1W(typ.)@5V into 4Ω with 1% THD+N max (1kHz)
* Eliminates SE-mode output coupling capacitors
* Shutdown mode available
* click and pop reduction circuitry
* Unity-gain stable
* Thermal-shutdown Protection
* Input MUX control
* SE/BTL mode available
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
PA4867L-N20-R
PA4867G-N20-R
PA4867L-N20-T
PA4867G-N20-T
PA4867L-P20-R
PA4867G-P20-R
PA4867L-P20-T
PA4867G-P20-T
Package
HTSSOP-20
HTSSOP-20
TSSOP-20
TSSOP-20
Packing
Tape Reel
Tube
Tape Reel
Tube
www.unisonic.com.tw
Copyright © 2011 Unisonic Technologies Co., Ltd
1 of 7
QW-R502-125.B
1 page  
PA4867
TYPICAL CHARACTERISTICS
THD+N vs. Frequency
5
VDD=5V, POUT=1W
RL=8Ω
1 Bridged Load, No Filters
AVD=20
AVD=10
0.1 AVD=2
CMOS IC
THD+N vs. Frequency
5
VDD=5V, POUT=150mW
RL=16Ω, CO=1000μF
1 Single Ended, No Filters
AV=-10
AV=-5
0.1 AV=-1
0.010
20
100 1k 10k 20k
Frequency (Hz)
0.01020
100 1k 10k 20k
Frequency (Hz)
THD+N vs. Output Power
10
VDD=5V, RL=8Ω
Bridged Load
AVD=2,BW<80kHz
1
f=20Hz
0.1 f=20kHz
f=1kHz
0.010
10m
0.1 1 2
Output Power (W)
THD+N vs. Output Power
10
VDD=5V, RL=16Ω
Single Ended
AV= -1, BW<80kHz
1
f=20kHz
0.1 f=20Hz
0.010
10m
f=1kHz
0.1
Output Power (W)
0.5
2
1.75
1.5
1.25
Output Power vs. Supply Voltage
f=1kHz
RL=8Ω
Bridged Load
BW<80kHz
1
0.75 10% THD+N
0.5 1% THD+N
0.25
0 2 2.5 3 3.5 4 4.5 5 5.5
Supply Voltage (V)
1.75
1.5
1.25
1
Output Power vs. Load Resistance
VDD=5V
f=1kHz
AVD=2
Bridged Load
BW<80kHz
0.75 10% THD+N
0.5
0.25 1% THD+N
08 10 20 30 40 50 60
Load Resistance (Ω)
70
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 7
QW-R502-125.B
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet PA4867.PDF ] | |
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