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| www..com YOUDA INTEGRATED CIRCUIT YD386 LOW VOLTAGE AUDIO POWER AMPLIFIER 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. YD386 FEATURES *Minimum external parts; *Wide supply voltage range: 4V~12V; *Voltage gains:20~200; *Ground referenced input; *Low distortion . BLOCK DIAGRAM 8 7 6 5 Vcc _ + GND 3 4 1 2 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..com YOUDA INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Power Dissipation Input Voltage Operating Temperature Storage Temperature SYMBOL Vcc PD Vi Topr Tstg (Tamb=25ae ) YD386 VALUE 15 1250 0.4V 0 to +70 UNIT V mW V ae ae -65 to +150 ELECTRICAL CHARACTERISTIC (Tamb=25ae ,all voltage referenced to GND Unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS NIN TYP MAX UNIT Supply Voltage Quiescent Circuit Current Output Power Vcc Iccq Vi=0 Vcc=6V, THD=10% Po Vcc=9V, THD=10% Pin1 and Pin 8 open Gv 10|I F Fron pin1 and pin8 Pin1 and Pin 8 open BW 10|I F Fron pin1 and pin8 Po=125mW, Pin1 and Pin 8 open 10|I F Fron pin7 and GND 4 4 250 500 325 12 8 V mA mW 700 26 dB 46 300 kHz 60 0.2 50 50 % dB k nA Voltage Gain Gain Bandwidth Total harmonic distortion Supply Voltage Rejection Input Resistance Input Bias current THD RR Zi IB Pin2 and Pin 3 open 250 www..com YOUDA INTEGRATED CIRCUIT APPLICATION CIRCUIT Vcc YD386 + 470|I 0.1|I + 6 8 1 10|I Vin W 10k 2 3 5 + + 220|I 0.047|I RL 4 7 + 10|I 10| OUTLINE DRAWING |
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