YOUDA INTEGRATED CIRCUIT YD2822

DUAL CHANNEL POWER AMPLIFIER——YD2822

DESCRIPTION
The YD2822 is a monolithic integrated audio amplifier in a 8-pin plastic dual in line package. It is designed for
portable cassette players and radios.

FEATURES
*Wide operating supply voltage :VCC=1.8V～15V
*Low crossover distortion
*Low quiescent circuit current
*Bridge/stereo configuration

BLOCK DIAGRAM

8 7 6 5
_ _
+ +

Vcc GND

1 2 3 4

ABSOLUTE MAXIMUM RATINGS (Tamb=25℃)

PARAMETER SYMBOL VALUE UNIT

Supply Voltage Vcc 15 V
Output Peak Current Iop 1.0 A

Power Tamb=50℃ 1.0

PD W
Dissipation Tcase=50℃ 1.4
Operating Temperature Topr -20~+ 70 ℃
Storage Temperature Tstg -40~+150 ℃

WuXi YouDa Electronics Co., Ltd

Add: No.5 Xijin Road, National Hi-Tech Industrial Development Zone, Wuxi Jiangsu China
Tel: 86-510-85205117 86-510-85205106 Fax: 86-510-85205110 Website: www.e-youda.com
SHENZHEN OFFICE Tel： 86-755-83740369 Fax： 86-755-83741418
Ver 5.0 1 of 5 2006-06-28
 YOUDA INTEGRATED CIRCUIT YD2822

ELECTRICAL CHARACTERISTICS
(Vcc=6V, Tamb=25℃, all voltage referenced to GND, Unless otherwise specified)

STEREO APPLICATION

PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT

Operating Supply
VCC 1.8 15 V
Voltage
Quiescent Circuit 2.7 V
VO
Output Voltage VCC=3V 1.2 V
Input Bias Current IB 100 nA
Quiescent Circuit
Iccq 6 9 mA
Current
VCC=9V 300
VCC=6V 90 120
RL=32Ω VCC=4.5V 60
VCC=3V 15 20
f=1kHz VCC=2V 5
Output Power Po THD=10 RL=16Ω VCC=6V 170 220 mW
% VCC=9V 1000
RL=8Ω
VCC=6V 300 380
VCC=6V 450 650
RL=4Ω VCC=4.5V 320
VCC=3V 110
RL=32Ω，PO=40mW 0.2
Total Harmonic
THD RL=16Ω，PO=75mW 0.2 %
Distortion
RL=8Ω，PO=150mW 0.2
Closed Loop
GV f=1kHz 37 39 41 dB
Voltage Gain
Channel Balance ΔGV ±1 dB
Input Resistance Zi f=1kHz 100 kΩ
Input Noise Rg=10kΩ
VNI 2.5 μV
Voltage BPF=20Hz～20kHz
Ripple Rejection RR f=100Hz C1=C2=100μF 24 30 dB
Cross Talk CT f=1kHz 30 dB

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 YOUDA INTEGRATED CIRCUIT YD2822

BTL APPLICATION

PARAMETER SYMBOL TEST CONDITIONS NIN TYP MAX UNIT

Operating Supply
VCC 1.8 15 V
Voltage
Quiescent Circuit
Iccq RL=∞ 6 9 mW
Current
DC Output Balance ΔVO RL=8Ω ±50 mW
Input Bias Current IB 100 nA
VCC=9V 1000
VCC=6V 300 320
RL=32Ω VCC=4.5V 200
VCC=3V 50 65
VCC=2V 8
VCC=9V 2000
f=1kHz
RL=16Ω VCC=6V
Output Power Po THD mW
VCC=3V 120
=10%
VCC=6V 900 1350
RL=8Ω VCC=4.4V 700
VCC=3V 220
VCC=4.5V 1000
RL=4Ω VCC=3V 200 350
VCC=2V 80
Total Harmonic
THD Po=0.5W, RL=8Ω, f=1kHz 0.2 %
Distortion
Closed Loop
GV f=1kHz 37 39 41 dB
Voltage Gain
Input Resistance Zi f=1kHz 100 kΩ
Rg=10kΩ
Input Noise Voltage VN1 3 μV
BPF=20Hz～20kHz
Ripple Rejection RR f=100Hz 40 dB
Power Bandwidth BW RL=8Ω, Po=1W 120 kHz

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 YOUDA INTEGRATED CIRCUIT YD2822

APPLICATION CIRCUIT
(1) YD2822 STEREO APPLICATION
VCC
+
470μ 0.1μ
2

Vin1 7 + 470μ
1 +
10k

8 - 0.1μ
100μ

+
4.7Ω

Vin1 6 + 470μ
3 +
10k

5 - 0.1μ
100μ

+
4.7Ω
4

(2) YD2822 BTL APPLICATION

VCC
+
2 470μ 0.1μ

Vin 7 +
1
10k

8 - 0.1μ
100μ

+ 4.7Ω

SPEAKER
6 +
3
0.01μ　

5 - 0.1μ
4.7Ω
4

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 YOUDA INTEGRATED CIRCUIT YD2822

OUTLINE DRAWING

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