YOUDA YD2025H

YD2025H
YOUDA INTEGRATED CIRCUIT
2.4W STEREO AUDIO AMPLIFIER——YD2025H
DESCRIPTION
The YD2025H is a monolithic integrated audio amplifier in a 16-pin plastic dual in line package. It is designed
for portable cassette players and radios.
FEATURES
*Working Voltage down to 3V
*Few External components
*High channel isolation
*Voltage gain up to 45dB (Adjustable with external resistor)
*Soft clipping
*Internal Thermal protection
BLOCK DIAGRAM
12
11
10
TAB
9
8
Vcc
7
1
5k
+
50
+
-
2
3
RIPPLE FILTER
Pre-GND
TAB
4
5
6
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
YD2025H
YOUDA INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
(Tamb=25℃)
PARAMETER
SYMBOL
VALUE
UNIT
Supply Voltage
Vcc
15
V
Iop
1.5
A
80*60*1.2mm PCB
PD
3.5
W
No Heat Sink
PD
1.6
W
Ambient operating temperature range
Topr
-20～+75
℃
Storage Temperature
Tstg
-40～+150
℃
Output Peak Current
Power
Dissipation
3
Electrical CHARACTERISTICS
(Tamb=20℃, Vcc=9V, f=1kHz, Stereo, Unless otherwise specified)
PARAMETER
SYMBOL
Supply Voltage
Quiescent Current
Quiescent Output
Voltage
Vcc
Iccq
Voltage Gain
Gv
Voltage Gain Difference
Input Impedance
ΔGv
Zi
Output Power
(STEREO)
NIN
Po
(THD
=10%)
Distortion
THD
Supply Voltage
Rejection
RR
Input Noise Voltage
VNI
CT
WuXi YouDa Electronics Co., Ltd
TYP
MAX
UNIT
40
12
50
V
mA
3
Vo
Output Power
(BTL)
Cross-Talk
TEST CONDITIONS
4.5
Stereo
Bridge
43
49
Vcc=9V, RL=4Ω
Vcc=9V, RL=8Ω
Vcc=6V, RL=4Ω
Vcc=6V, RL=8Ω
Vcc=3V, RL=4Ω
Vcc=9V, RL=8Ω
Vcc=6V, RL=4Ω
Stereo ,RL=4Ω, Po=250mW
BTL,RL=4Ω, Po=250mW
Rg=0, GV=45dB,
Vr=150mV, f=100Hz
GV=45dB,
BPF=20Hz
～20kHz
1.7
0.7
40
45
51
30
2.4
1.3
1.0
0.6
0.1
4.7
2.8
0.3
0.5
V
47
53
±1
dB
dB
kΩ
W
1.5
46
%
dB
Rg=0
1.5
3
Rg=10kΩ
3
6
μV
Rg=10kΩ, f=1kHz,
RL=4Ω, Po=1W
2 of4
40
55
dB
Website: www.e-youda.com
YD2025H
YOUDA INTEGRATED CIRCUIT
APPLICATION CIRCUIT
(1) YD2025H TYPE APPLICATION
+
100μ
6
IN 1
12
470μ 0.1μ
10
+
8
+
+
2.2μ
100μ
+
11
_
9
100μ
0.15μ
+
+
5
+
+
2.2μ
100μ
+
2
_
4
100μ
RL
470μ
3
IN 2
Vcc
+
+
0.15μ
1
7
RL
470μ
TAB
(2) YD2025H BTL APPLICATION
Vcc
+
+
100μ
IN
6
470μ
12
10
+
8
+
+
100μ
2.2μ
11
+
9
_
0.15μ
100μ
3
6
+
+
100μ
RL
2
+
4
100μ
1
_
0.15μ
7
WuXi YouDa Electronics Co., Ltd
TAB
3 of 4
Website: www.e-youda.com
YD2025H
YOUDA INTEGRATED CIRCUIT
OUTLINE DRAWING
WuXi YouDa Electronics Co., Ltd
4 of 4
Website: www.e-youda.com