YOUDA INTEGRATED CIRCUIT
YD7265
25W STEREO AMPLIFIER WITH MUTE
AND STAND-BY--YD7265
DESCRIPTION
The YD7265 is class AB dual Audio power amplifier assembled in the Multiwatt package,specially designed for
high quality sound application as Hi-Fi music centers and stereo TV sets.
FEATURES
*WIDE SUPPLY VOLTAGE RANGE(UP TO 25V ABS MAX.).
*HIGH OUTPUTE POWER:25W(Vcc20V R
L
8THD=10%).
*NO POP AT TURN-ON/OFF.
*MUTE AND STAND-BY.
*SHORT CIRCUIT PROTECTION.
*THERMAL OVERLOAD PROTECTION.
BLOCK DIAGRAM
7
6
4
11
10
8
1
5
3
2
9
+
-
+
-
ST-BY/MUTE
ST/M
-Vcc
GND
+Vcc
-Vcc
PIN NO.
SYMBOL
PIN NO.
SYMBOL
1 -Vcc 7
IN+(2)
2 OUTPUT1 8 IN-(2)
3 +Vcc 9 GND
4 OUTPUT2 10 IN-(1)
5 ST-BY/MUTE 11 IN+(1)
6 -Vcc
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 4 2006-06-28
YOUDA INTEGRATED CIRCUIT
YD7265
ABSOLUTE MAXIMUM RATINGS
(Tamb=25)
PARAMETER SYMBOL
VALUE
UNIT
DC Supply Voltage
Vcc
25V V
Output Peak Current(internally limited
Io
4.5 A
Power Dissipation (Tc=70) P
D
30 W
Operating Temperature
Top
-20 to +85
Storage Temperature
Tstg
-40 to +150
ELECTRICAL CHARACTERISTICS
(Vcc=20V,R
L
=8, Rg=50, G
V
=30dB,f=1KHz,Tamb=25,Unless otherwise specified.)
Parameter
Symbol Test
Condition Min.
Typ.
Max.
Unit
Supply Range
Vcc
5 25 V
Quiescent Current
Iccq
80
130
mA
Input Offset Voltage
Vos
20 20 mV
THD10, R
L
=8 20
25
W
THD1, R
L
=8
20 W
THD10,Vs=16V,R
L
=4
25 W
Music Output Power
Po
THD1,Vs=16V,R
L
=4 20 W
Po1W,f=1kHz
0.01
%
Po=0.115W,f=100Hz15kHz
0.7
%
R
L
=4,Po1W,f=1kHz
0.02
%
Total Harmonic
Distortion
THD
R
L
=4,Vcc=16V
Po=0.112W,f=100Hz15kHz
1
%
f=1kHz
70 dB
Cross Talk
C
T
f=10kHz
60 dB
Open Loop Voltage Gain
G
OL
80 dB
Input Resistance
R
i
15
20
k
Thermal Shut-down
Junction Temperature
Tj
145
WuXi YouDa Electronics Co., Ltd 2 of 4 Website: www.e-youda.com
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