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| YOUDA INTEGRATED CIRCUIT YD2025D 1.3W STEREO AUDIO AMPLIFIER----YD2025D DESCRIPTION The YD2025D is a monolithic integrated audio Amplifier in a SOP20. 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 20 19 18 17 + 16 15 14 13 12 11 + 1 2 3 4 5 6 7 8 9 RIPPLE FILTER 10 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 ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Output Peak Current Power Dissipation (No Heat Sink) Ambient operating temperature range Storage Temperature (Tamb=25) SYMBOL Vcc Io PD Topr Tstg VALUE 15 1.5 1.0 -20+75 -40+150 YD2025D UNIT V A W Electrical CHARACTERISTICS (Tamb=20, Vcc=9V, f=1kHz, Stereo, Unless otherwise specified) PARAMETER Supply Voltage Quiescent Current Quiescent Output Voltage Voltage Gain Voltage Gain Difference Input Impedance Output Power (STEREO) Output Power (BTL) Distortion Supply Voltage Rejection Input Noise Voltage Cross-Talk THD RR VNI CT SYMBOL Vcc Iccq Vo Gv Gv Zi Vcc=9V, Po (THD =10%) Vcc=6V, Vcc=6V, Vcc=3V, Vcc=6V, RL=8 RL=4 RL=8 RL=4 RL=8 0.7 30 1.3 1 0.6 0.1 1.5 0.3 0.5 40 46 1.5 3 40 55 3 6 1.5 Stereo Bridge 43 49 TEST CONDITIONS NIN 3 40 4.5 45 51 47 53 1 TYP MAX 9 50 UNIT V mA V dB dB k W W W W W % % dB V V dB Stereo ,RL=8, Po=250mW BTL,RL=8, Po=250mW Rg=0, GV=45dB, Vr=150mV, f=100Hz GV=45dB, BPF=20Hz 20kHz Rg=0 Rg=10k Rg=10k, f=1kHz, RL=8, Po=0.5W WuXi YouDa Electronics Co., Ltd 2 of 4 Website: www.e-youda.com YOUDA INTEGRATED CIRCUIT APPLICATION CIRCUIT 1YD2025D TYPE APPLICATION Vcc IN1 + + + YD2025D 100 0.1 100 12 20 10 18 19 + 2.2 100 4.7 + 470 + 13 1 9 2 100 IN2 + 2.2 0.1 + 470 + + 8 11 47 / 1417 3 100 4.7 0.1 100 (2) YD2025D BTL APPLICATION Vcc IN1 + + + 100 0.1 100 12 20 10 18 19 + 2.2 100 4.7 0.1 + 13 100 9 2 + 8 1 11 47 / 1417 + 3 100 4.7 0.1 100 WuXi YouDa Electronics Co., Ltd 3 of 4 Website: www.e-youda.com YOUDA INTEGRATED CIRCUIT OUTLINE DRAWING YD2025D WuXi YouDa Electronics Co., Ltd 4 of 4 Website: www.e-youda.com |
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