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| YOUDA INTEGRATED CIRCUIT YD34119A LOW POWER AUDIO AMPLIFIER--YD34119A DESCRIPTION The YD34119A is a low power audio amplifier integrated circuit intended (primarily) for the telephone applications, such as in speakerphones. FEATURES *Wide operating supply voltage: Vcc=2~6V; *Low quiescent supply current (Icc=2.7mA, typ.); *Medium output power Po=250mW at Vcc=6V, RL=32, THD=10%; *Load impedance range (8to 100); *Low distortion; *Mute function (Icc=65A, typ.); *Minimum number of external parts required. BLOCK DIAGRAM 8 7 4k 4k 50k 6 5 BIAS + _ + _ 125k 50k 1 2 3 4 WuXi YouDa Electronics Co., Ltd Add: No.5 Xijin Road, National Hi-Tech Industrial Development Zone, Wuxi Jiangsu China Tel: 86-510-85205117 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 Peak Output Current Maximum Input/Output Voltage Junction Temperature (Tamb=25) VALUE 8.0 250 -1.0~Vcc+1.0 -55+140 (Tamb=25) TYP 4.2 32 100 0 0 -20 30 YD34119A SYMBOL Vcc Iop Vi/Vout Tj UNIT V mA V RECOMMENDED OPERATION CONDITIONS PARAMETER Supply Voltage Load Impedance Peak Load Current Differential Gain(5kHz Bandwidth) Voltage at Mute Ambient Temperature SYMBOL Vcc RL Iop Gv Vi(mute) Tamb MIN 2.0 8 MAX 6.0 100 200 46 Vcc +70 UNIT V mA dB V ELECTRICAL CHARACTERISTICS PARAMETER SYMBOL (Tamb=25, Vcc=6V, Unless otherwise specified) MIN TYP 2.7 3.3 65 1.0 -30 1.15 2.65 0 Vcc -1.0 0.16 -100 @Vin Pin4 Pin2 Pin1 Low High 2.0 100 18 50 30 150 25 220 40 175 0.8 -200 +30 MAX 4.0 5.0 100 1.25 UNIT mA mA A V mV V V nA M k k k V V TEST CONDITIONS Vcc=3.0V, Mute=0.8V, RL= Vcc=6.0, Mute=0.8V, RL= Vcc=3.0V, Mute=2.0V, RL= Vcc=3.0V, RL=16, Rf=75k, Vcc=6.0V, RL=16, Rf=75k, Vcc=3.0V, Rf=75k, RL =32 2.0VVcc6V, Iout=-75mA 2.0VVcc6V, Iout=75mA Operating Current Iccq Output DC Voltage Output Offset Voltage Output High Level Output Low Level Input Bias Current AC Input Resistance Equivalent Resistance Chip Disable (Pin1)Input Voltage Vo Vo VOH VOL IIB Zi Ri RF R1 V1L V1H WuXi YouDa Electronics Co., Ltd 2 of 4 Website: www.e-youda.com YOUDA INTEGRATED CIRCUIT PARAMETER Open Loop Gain of Amp 1 Close Loop Gain of Amp 2 Output Power Total Harmonic Distortion Gain Bandwidth Power Supply rejection Muting SYMBOL Gvo Gv Vcc=3.0V,f=1.0kHz,RL=32 Vcc=3.0V, RL=16, THD10% Po Vcc=6.0V, RL=32, THD10% THD BW RR (Vcc=4.5V, =3.0V) GMUT C1=,C2=0.01F C1=0.1F,C2=0,f=1.0kHz C1=1.0F,C2=0.01F,f=1.0kHz Mute=2.0V, Vcc=3.0V, 1.0kHzf20kHz, 70 50 Vcc=6.0V, RL =32, Po=125mW Vcc3.0V, RL =8, Po=20mW 250 TEST CONDITIONS MIN 80 -0.35 55 YD34119A TYP MAX UNIT dB 0 0.35 dB mW 0.5 0.5 1.5 12 52 dB 1.0 % MHz dB APPLICATION CIRCUIT Vcc Rf 75k AUDIO IN Ci + 6 + Vcc Ri Vin+ 4 0.1 100 10 3.0k 3 + 1 VoVin4k 4k 5 SPEAKER 10 FC 2 + 50k Vo+ 2 125k 50k BIAS 8 4.7 CD 1 GND 7 CD WuXi YouDa Electronics Co., Ltd 3 of 4 Website: www.e-youda.com YOUDA INTEGRATED CIRCUIT OUTLINE DRAWING YD34119A WuXi YouDa Electronics Co., Ltd 4 of 4 Website: www.e-youda.com |
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