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PA6021 Schematic ( PDF Datasheet ) - Unisonic Technologies

Teilenummer PA6021
Beschreibung 2-W STEREO AUDIO POWER AMPLIFIER
Hersteller Unisonic Technologies
Logo Unisonic Technologies Logo 




Gesamt 6 Seiten
PA6021 Datasheet, Funktion
UNISONIC TECHNOLOGIES CO., LTD
PA6021
2-W STEREO AUDIO POWER
AMPLIFIER WITH ADVANCED
DC VOLUME CONTROL
CMOS IC
„ DESCRIPTION
The PA6021 is a stereo audio power amplifier that drives 2
W/channel of continuous RMS power into a 4-load when utilizing a
heat sink. Advanced dc volume control minimizes external
components and allows BTL (speaker) volume control and SE
(headphone) volume control.
The 20-pin DIP package allows for the use of a heatsink which
provides higher output power.
To ensure a smooth transition between active and shutdown
modes, a fade mode ramps the volume up and down.
DIP-20
Lead-free: PA6021L
Halogen-free: PA6021G
„ FEATURES
* 2 W Into 4-W speakers with external heatsink
* DC volume control with 2-dB
* Steps from -40 dB ~ 20 dB
* – Fade Mode
* – -85-dB Mute Mode
* Differential Inputs
* 1-µA Shutdown Current (Typical)
* Headphone Mode
„ ORDERING INFORMATION
Normal
PA6021-D20-T
Ordering Number
Lead Free Plating
PA6021L-D20-T
Halogen Free
PA6021G-D20-T
Package
DIP-20
Packing
Tube
www.unisonic.com.tw
Copyright © 2008 Unisonic Technologies Co., Ltd
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PA6021 Datasheet, Funktion
PA6021
„ TYPICAL CHARACTERISTICS
Output Waveform
4
2
0
-2 VRMS=2.52V
-4 VDD=5V, RL=4,
THD=1%
4
2
0
-2
VRMS=2.54V
-4
0
400
800
1200
1600 2000
Time (µs)
Output Waveform
4
2
0
-2 VRMS=2.84V
-4 VDD=5V, RL=8Ω,
4 POUT=1W
2
0
-2
VRMS=2.87V
-4
0
400
800
1200
1600 2000
Time (µs)
4
2
0
-2
-4
4
2
0
-2
-4
0
CMOS IC
Output Waveform
VRMS=2.92V
VDD=5V, RL=4,
THD=10%
VRMS=2.95V
400 800 1200
Time (µs)
1600
2000
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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