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| YOUDA INTEGRATED CIRCUIT YD7000 POWER AMPLIFIER FOR HEADPHONE STEREOS--YD7000 DESCRIPTION The YD7000 is a low power audio amplifier integrated circuit for headphone. It provides differential speaker outputs to maximize output swing at low supply voltages. FEATURES *Low current consumption. *16 load drive capability. *Excellent reduced voltage characteristics. *Excellent power supply ripple rejection. *Minimum number of external pares required (no input capacitor, feedback capacitor required). *Applicable to radio sets because of high voltage gain. *Less harmonic interference in radio band. *On-chip power switch function, muting function. BLOCK DIAGRAM MUTE SWITCH 10 MUTE CIRCUIT Amp1 POWER SWITCH 1 POWER SWITCH 2 IN1 3 PRE GND 4 IN2 5 REF Amp2 OUT1 9 POWER GND 8 OUT2 7 Vcc 6 BIAS 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 YD7000 ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Allowable Power Dissipation Operating Temperature Storage Temperature (Tamb=25) VALUE 4.5 300 -20+75 -40+125 UNIT V mW SYMBOL Vcc PD Topr Tstg RECOMMENDED OPERATING CONDITIONS PARAMETER Supply Voltage Operating Voltage Range Recommended Load Resistance SYMBOL Vcc Vcc (Tamb=25) VALUE 3.0 1.64.0 1632 UNIT V V RL ELECTRICAL CHARACTERISTICS (Tamb=25, RL=16, Rg=600, See specified Test Circuit.) PARAMETER SYMBOL Icco(1) Quiescent Current Icco(2) Icco(3) Voltage Gain Gv(1) Gv(2) Voltage Gain Difference Total Harmonic Distortion Output Power Gv(1) Gv(2) THD Po TEST CONDITIONS Vcc=2.4V, quiescent Vcc=4.5V, pin10GND Vcc=4.5V, pin1GND Vcc=2.4V, f=1kHz, Vo=-10dBm Vcc=1.6V, f=1kHz, Vo=-20dBm Vcc=2.4V, f=1kHz, Vo=-10dBm Vcc=1.6V, f=1kHz, Vo=-20dBm Vcc=2.0V, f=1kHz,Po=1mW Vcc=3.0V, f=1kHz, THD=10% 20 0.5 40 30 29 32 32 MIN TYP 5.4 1.1 MAX 10 2.0 1.0 34 34 1.0 1.0 1.5 UNIT mA mA A dB dB dB dB % mW WuXi YouDa Electronics Co., Ltd 2 of 4 Website: www.e-youda.com YOUDA INTEGRATED CIRCUIT YD7000 PARAMETER Crosstalk Ripple Rejection Output Noise Voltage Power OFF Effect Muting Effect Power ON Current Sensitivity Power OFF Voltage Sensitivity Muting OFF Current Sensitivity Muting ON Voltage Sensitivity SYMBOL CT SVRR VNO VO(off) VO(MT) I1(on) V1(off) I10(off) V10(on) TEST CONDITIONS Vcc=2.4V, f=100Hz, Rg=1K Vo=-10dB Vcc=1.6V, f=100Hz, Rg=1 K VR=-20dBm, BPF=100Hz Vcc=4.5V, Rg=1 K BPF=20Hz20kHz Vcc=1.6V, f=100Hz, pin1GND, VIN=-10dB Vcc=1.6V, f=100Hz, pin10GND, VIN=-10dB Vcc=1.5V, V50.85V Vcc=1.5V, V50.1V Vcc=1.5V,V50.85V Vcc=1.5V, V50.1V MIN 40 45 TYP 50 60 62 MAX UNIT dB dB 100 -80 -80 V dB dB A V 0.05 0.5 0.6 0.2 0.5 0.65 1.0 1.0 A V APPLICATION CIRCUIT Opr. Vin1 Amp. Opr. St-by Amp. /Mute 10 1 W Stand-by Amp1 2 9 Mute + 0.1 4.7 4.7 0.1 7 + 220 Vcc 220 Vin2 8 3 W Amp2 4 + 22 Bias + 0.1 100 5 6 WuXi YouDa Electronics Co., Ltd 3 of 4 Website: www.e-youda.com YOUDA INTEGRATED CIRCUIT YD7000 OUTLINE DRAWING WuXi YouDa Electronics Co., Ltd 4 of 4 Website: www.e-youda.com |
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