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YOUDA INTEGRATED CIRCUIT YD386
S
LOW VOLT AGE AUDIO POWER AMPLIFIER
——YD386
DESCRIPTION
The YD386 is a power amplifier, designed for use in low voltage consumer applications. The gain is internally
set to 20 to keep the external part count low. But the additional of an external resistor and capacitor between pin 1
and pin 8 will increase the gain to any value up to 200.
FEATURES
*Minimum external parts;
*Wide supply voltage range: 4V~12V;
*Voltage gains:20~200;
*Ground referenced input;
*Low distortion .
BLOCK DIAGRAM
Vcc
68
+
7
_
5
GND
1
423
WuXi YouDa Electronics Co., Ltd
Add: No.5 Xijin Road, National Hi-Tech Industrial Development Zone, Wuxi Jiangsu China
Tel: 86-510-5205117 86-510-5205108 Fax: 86-510-5205110 Website: www.e-youda.com
SHENZHEN OFFICE Tel： 86-755-83740369 13823533350 Fax： 86-755-83741418
Ver 3.1 1 of 3 2004-9-20
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YOUDA INTEGRATED CIRCUIT YD386
S
ABSOLUTE MAXIMUM RATINGS (Tamb=25℃)
PARAMETER SYMBOL VALUE UNIT
Supply Voltage Vcc 15 V
Power Dissipation PD 1250 mW
Input Voltage Vi 0.4V V
Operating Temperature Topr 0 to +70
Storage Temperature Tstg -65 to +150
ELECTRICAL CH ARACTERISTIC
(Tamb=25℃,all voltage referenced to GND Unless otherwise specified)
PARAMETER SYMBOL TEST CONDITIONS NIN TYP MAX UNIT
Supply Voltage Vcc 4 12 V
Quiescent Circuit
Current
Output Power
Voltage Gain
Iccq Vi=0 4 8 mA
Vcc=6V, THD=10% 250 325
Po
Gv
Vcc=9V, THD=10% 500 700
Pin1 and Pin 8 open 26
10μF Fron pin1 and pin8
℃
℃
mW
dB
46
Gain Bandwidth Pin1 and Pin 8 open 300
BW
Total harmonic
distortion
Supply Voltage
Rejection
Input Resistance Zi 50 kΩ
Input Bias current IB Pin2 and Pin 3 open 250 nA
THD
RR
10μF Fron pin1 and pin8
Po=125mW,
Pin1 and Pin 8 open
10μF Fron pin7 and GND
60
0.2 %
50 dB
kHz
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YOUDA INTEGRATED CIRCUIT YD386
S
APPLICATION CIRCUIT
6 8
+
470μ
Vcc
0.1μ
+
10μ
1
Vin
W
10k
OUTLINE DRAWING
2
3
5
+
4
7
+
10μ
+
220μ
0.047μ
10Ω
RL
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