YD34119 YOUDA INTEGRATED CIRCUIT LOW POWER AUDIO AMPLIFIER—YD34119 DESCRIPTION The YD34119 is a low power audio amplifier integrated circuit intended (primarily) for the telephone applications, such as in speakerphones. FEATURES *Wide operating supply voltage: Vcc=2~16V; *Low quiescent supply current (Icc=2.7mA, typ.); *Medium output power Po=250mW at Vcc=6V, RL=32Ω, THD=10%; *Load impedance range (8Ωto 100Ω); *Low distortion; *Mute function (Icc=65μA, typ.); *Minimum number of external parts required. BLOCK DIAGRAM 8 4k 5 6 7 4k BIAS 50k + _ + _ 125k 1 2 3 50k 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 2006-6-28 YD34119 YOUDA INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS (Tamb=25℃) PARAMETER SYMBOL VALUE UNIT Supply Voltage Vcc 18 V Peak Output Current Iop ±250 mA Maximum Input/Output Voltage Vi/Vout -1.0~Vcc+1.0 V Junction Temperature Tj -55～+140 ℃ RECOMMENDED OPERATION CONDITIONS (Tamb=25℃) PARAMETER SYMBOL MIN TYP MAX UNIT Supply Voltage Vcc 2.0 4.2 16 V Load Impedance RL 8 32 100 Ω Peak Load Current Iop 100 200 mA Differential Gain(5kHz Bandwidth) Gv 0 30 46 dB Voltage at Mute Vi(mute) 0 Vcc V Ambient Temperature Tamb -20 +70 ℃ ELECTRICAL CHARACTERISTICS PARAMETER Operating Current SYMBOL Iccq (Tamb=25℃, Vcc=6V, Unless otherwise specified) TEST CONDITIONS TYP MAX UNIT Vcc=3.0V, Mute=0.8V, RL=∞ 2.7 4.0 mA Vcc=16.0, Mute=0.8V, RL=∞ 3.3 5.0 mA Vcc=3.0V, Mute=2.0V, RL=∞ 65 100 μA 1.15 1.25 Vcc=3.0V, RL=16Ω, Rf=75kΩ, Output DC Voltage Vo MIN 1.0 Vcc=6.0V, RL=16Ω, Rf=75kΩ, 2.65 Vcc=12.0V, RL=16Ω, Rf=75kΩ, 5.65 V Output Offset Voltage ΔVo Vcc=6.0V, Rf=75kΩ, RL =32Ω Output High Level VOH 2.0V＜Vcc＜16V, Iout=-75mA Vcc -1.0 V Output Low Level VOL 2.0V＜Vcc＜16V, Iout=75mA 0.16 V Input Bias Current IIB AC Input Resistance Zi @Vin Ri Pin4 100 150 220 kΩ RF Pin2 18 25 40 kΩ R1 Pin1 50 175 kΩ V1L Low 0.8 V V1H High Equivalent Resistance Chip Disable (Pin1)Input Voltage WuXi YouDa Electronics Co., Ltd -30 0 -100 2 of 4 +30 -200 ＞30 2.0 mV nA MΩ V Website: www.e-youda.com YD34119 YOUDA INTEGRATED CIRCUIT PARAMETER SYMBOL Open Loop Gain of Amp 1 Gvo Close Loop Gain of Amp 2 Gv Output Power MIN TYP MAX 80 Po Total Harmonic Distortion TEST CONDITIONS THD Gain Bandwidth BW Power Supply rejection RR (Vcc=6.0V, Δ=3.0V) Muting GMUT UNIT dB Vcc=6.0V,f=1.0kHz,RL=32Ω -0.35 Vcc=3.0V, RL=16Ω, THD≤10% 55 Vcc=6.0V, RL=32Ω, THD≤10% 250 Vcc=12.0V, RL =100Ω, THD≤10% 400 0 0.35 dB mW Vcc=6.0V, RL =32Ω, Po=125mW 0.5 Vcc≥3.0V, RL =8Ω, Po=20mW 0.5 Vcc≥12V, RL =32Ω, Po=200mW 0.6 1.0 % 1.5 MHz C1=0.1μF,C2=0,f=1.0kHz 12 dB C1=1.0μF,C2=0.01μF,f=1.0kHz 52 C1=∞,C2=0.01μF 50 Mute=2.0V, Vcc=6.0V, 1.0kHz＜f＜20kHz, 70 dB APPLICATION CIRCUIT Vcc Rf 75k AUDIO IN Ci + + 6 Vcc Ri Vin+ 0.1μ 100μ 4 10μ 3.0k 1 5 3 + Vo- SPEAKER Vin- 10μ 4k 4k FC 2 2 + Vo+ 50k 8 125k 50k CD 4.7μ BIAS 1 CD GND 7 WuXi YouDa Electronics Co., Ltd 3 of 4 Website: www.e-youda.com YD34119 YOUDA INTEGRATED CIRCUIT OUTLINE DRAWING WuXi YouDa Electronics Co., Ltd 4 of 4 Website: www.e-youda.com