www.DataSheet4U.com YD386 YOUDA INTEGRATED CIRCUIT LOW VOLTAGE 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 8 7 _ Vcc 5 6 + GND 1 2 3 4 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 www.DataSheet4U.com YD386 YOUDA INTEGRATED CIRCUIT 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 CHARACTERISTIC (Tamb=25℃,all voltage referenced to GND Unless otherwise specified) PARAMETER SYMBOL Supply Voltage Vcc Quiescent Circuit Current Iccq TEST CONDITIONS TYP 4 Vi=0 Vcc=6V, THD=10% Output Power NIN 4 250 UNIT 12 V 8 mA 325 mW Po Vcc=9V, THD=10% 500 700 Pin1 and Pin 8 open 26 10μF Fron pin1 and pin8 46 Pin1 and Pin 8 open 300 10μF Fron pin1 and pin8 60 THD Po=125mW, Pin1 and Pin 8 open 0.2 % RR 10μF Fron pin7 and GND 50 dB 50 kΩ 250 nA Voltage Gain dB Gv Gain Bandwidth BW Total harmonic distortion Supply Voltage Rejection MAX Input Resistance Zi Input Bias current IB kHz Pin2 and Pin 3 open www.DataSheet4U.com YD386 YOUDA INTEGRATED CIRCUIT APPLICATION CIRCUIT Vcc + 470μ 0.1μ + 6 10μ 8 1 Vin 2 5 W 3 + 220μ 10k 0.047μ 4 7 10Ω + 10μ OUTLINE DRAWING + RL