UTC2822D/E LINEAR INTEGRATED CIRCUIT

DUAL LOW VOLTAGE POWER

AMPLIFIER

DESCRIPTION
The UTC2822D/E is a monolithic integrated audio amplifier in
a 8-pin DIP and SOP package. It is designed for portable
cassette players and radios.

FEATURES
*Wide operating supply voltage:Vcc=1.8V- 12V
*Low crossover distortion
*Low quiescent circuit current
*bridge/stereo configuration ORDERING INFORMATION
Device Package
UTC2822D DIP-8-300-2.54
UTC2822E SOP-8-225-1.27

BLOCK DIAGRAM
PIN CONFIGURATION
VCC
2

INPUT1 7
1 OUTPUT1
NP1 8
OUTPUT 1 1 8 NF 1

INPUT
Vcc 2 7
1

INPUT2 6 INPUT
OUTPUT 2 3 6
2
3 OUTPUT2
NP2 5 GND 4 5 NF 2

4
GND

ABSOLUTE MAXIMUM RATINGS(Ta=25C)

Characteristic Symbol Value Unit
Supply Voltage VCC 15 V
Output Peak Current IO(peak) 1 A
Power Dissipation PD at Tamb=50C 1.0 W
at Tcase=50C 1.4
Operating Temperature Topr -20~+70 C
Storage Temperature Tstg -40~+150 C

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ELECTRICAL CHARACTERISTICS
(Ta=25C,VCC=6V,f=1kHz,unless otherwise specified)
Characteristic Symbol Test Conditions Min Typ Max Units
Operating Supply Voltage VCC 1.8 12 V
Quiescent Circuit Current ICC Vi=0 6 9 mA
Quiescent Output Voltage Vo Stereo 2.7 V
Input Bias Current IBA Stereo 100 nA
Closed Loop Voltage Gain AV Stereo 40 dB
Closed Loop Voltage Gain AV Bridge 40 dB
Channel Balance CB Stereo -1 0 1 dB
Output Power PO Stereo,VCC=6V,RL=4, 0.4 0.65
THD=10%
W
Stereo,VCC=9V,RL=4, 1.48
THD=10%
Output Power PO Stereo,VCC=3V,RL=4, 0.11
W
THD=10%
Output Power PO Bridge,VCC=6V,RL=8, 0.9 1.25
W
THD=10%
Output Power PO Bridge,VCC=3V,RL=4, 0.35
W
THD=10%
Output Power PO Bridge,VCC=9V,RL=8, 3
W
THD=10%
Total Harmonic Distortion THD Stereo,RL=8, Po=0.2W 0.3 %
Total Harmonic Distortion THD Bridge,RL=8, Po=0.5W 0.3 %
Ripple Rejection RR Stereo,f=100Hz,C3=100F 24 30 dB
Output Noise Voltage VNO Stereo, BW(-3dB)=20Hz~20kHz 0.5 2.0 mV
Cross Talk CT Stereo,f=1kHz 50 dB
Input Resistance Ri 100 k

TEST CIRCUIT 1:STEREO TEST CIRCUIT 2:BRIDGE

VCC VCC
C3 C5
100 F 100 F

2 2

INPUT1 7 C4 7
470 F INPUT1
1 1

R1
8 C6 R1 C2
10k 0.1 F 10k 0.1 F
C1 RL 8 RL
100 F R3 R2
4.7 4.7
C1
10 F

6 C5 6
INPUT2 470 F
3 3
5
R2 C7 C3
10k 0.1 F 0.1 F
RL 5
C2
100 F R4 R3
4 4.7
C4 4.7
4
0.01 F

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UTC2822D/E LINEAR INTEGRATED CIRCUIT
SCHEMATIC DIAGRAM

2
Vcc
I source

CONTROL

Vcc Vcc
1 3
OUT 1 OUT 2

8 7 6 5 4

NF 1 INPUT 1 INPUT 2 NF 2 GND

TYPICAL PERFORMANCE CHARACTERISTICS

QUIESCENT CURRENT (mA)

RIPPLE REJECTION (dB)

6
10
C1=C2
=22 F
4 20

C1=C2
30 =100 F
2

40

0 4 8 12 16 10 30 100 300 1000 3000

SUPPLY VOLTAGE (V) FREQUENCY (Hz)

PACKAGE DIMENSIONS

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UTC2822D/E LINEAR INTEGRATED CIRCUIT
DIP-8-300-2.54 Unit: mm

SOP-8-225-1.27 Unit: mm

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UTC2822D/E LINEAR INTEGRATED CIRCUIT

Attach

Revision History

Data REV Description Page

1.0 Original
ChageOperating Supply Voltagefrom 9V to 12V 2
2004.09.10 1.1
Add Output Power Vcc=9V 2
AddOrdering information 1
2004.09.13 1.2
AddDIP-8-300-2.54 SOP-14-225-1.27Package out line 4
2005.3.18 1.3 ReviseDIP-8-300-2.54 SOP-14-225-1.27Package out line 5
2006.09.29 1.4 ReviseOrdering information 1
2012.1.11 1.5 ReviseELECTRICAL CHARACTERISTICS 2

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