UNISONIC TECHNOLOGIES CO., LTD MC34119 LINEAR INTEGRATED CIRCUIT LOW POWER AUDIO AMPLIFIER DESCRIPTION The UTC MC34119 is a low power audio amplifier IC intended for the telephone applications, such as in speakerphones. It provides differential speaker outputs to maximize output swing at low supply voltages. Coupling capacitor to the speaker is not required. Open loop gain is 80dB, and the closed loop gain is set with two external resistors. The Mute pin permits powering down and/or muting the input signal. FEATURES * Wide operating supply voltage: VCC=2V~16V * Low quiescent supply current (ICC=2.7mA, typ) * Medium power output over 250mW at VCC=6V, RL=32Ω, THD＜10% * Load impedance range (8Ω~100Ω) * Low total harmonic distortion (0.5% typ) * Mute function (ICC=65μA, typ) * Minimum number of external parts required ORDERING INFORMATION Ordering Number Lead Free MC34119L-D08-T - Halogen Free MC34119G-D08-T MC34119G-S08-R MC34119G-P08-R Package Packing DIP-8 SOP-8 TSSOP-8 Tube Tape Reel Tape Reel MARKING DIP-8 www.unisonic.com.tw Copyright © 2014 Unisonic Technologies Co., Ltd SOP-8 TSSOP-8 1 of 8 QW-R107-038.I MC34119 PIN CONFIGURATION PIN DESCRIPTION PIN NO. 1 2 3 4 5 6 7 8 LINEAR INTEGRATED CIRCUIT PIN NAME DESCRIPTION This pin can be used to power down the IC to converse power, or for muting, or both. When Mute at a logic “LOW” (less than 0.8V), the IC is enabled for normal operation. When at a logic “HIGH” (2V to VCC), the IC is disabled. If Mute is open, that is equivalent to a logic “LOW”. Ripple A capacitor at this pin increase power supply rejection, and affects turn-on time. This pin Rejection can be left open if the capacitor at pin 3 is sufficient. Analog Ground for the amplifiers. A 1μF capacitor at this pin (with a 5μF capacitor at pin 2) Input(+) provides 52dB( typ) of power supply rejection. Turn-on time of the circuit is affected by the capacitor on this pin. This pin can be used as an alternative input. Amplifier input. The input capacitor and resistor set low frequency roll-off and input Input(-) impedance. The feedback resistor is connected between this pin and output 1. Output 1 Amplifier output 1. The DC level is about (VCC~0.7V)/2. VCC DC supply voltage is applied to this pin (VCC=2~16V). GND Ground pin. Amplifier output 2. This signal is equal in amplitude, but 180°out of phase with that output 1, Output 2 the DC level is about (Vcc~0.7V)/2. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 8 QW-R107-038.I MC34119 LINEAR INTEGRATED CIRCUIT BLOCK DIAGRAM IN- 4 Amp 1 IN+ VCC 5 OUT1 8 OUT2 1 MUTE 3 6 Bias 2 7 RR GND UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 8 QW-R107-038.I MC34119 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS (TA=25C ) PARAMETER SYMBOL RATINGS UNIT Supply Voltage VCC -1~+18 V ±250 Output Current IOUT mA Maximum Input, Ripple Rejection, Mute Pin Voltage VIN -1~+1 V Applied Output Voltage (Output Pin When Disabled) VOUT -1~+1 V Junction Temperature TJ +125 C Operating Temperature TOPR -20 ~ +85 C Storage Temperature TSTG -40 ~ +150 C Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. RECOMMENDED OPERATION CONDITIONS (TA=25C) PARAMETER Supply Voltage Load Impedance Peak Load Current Differential Gain (5KHz Bandwidth) Voltage at Mute Ambient Temperature SYMBOL VCC ZL IL(PEAK) GV VI(MUTE) Ta RATINGS 2~16 8~100 ±200 0~46 0~VCC -20~+70 UNIT V Ω mA dB V C ELECTRICAL CHARACTERISTICS (VCC=6V, TA=25C, unless otherwise specified) PARAMETER DC PARAMETER SYMBOL Operating Current Output Voltage ICC VOUT Output Offset Voltage Output High Level Output Low Level Input Bias Current VO(OFF) VOH VOL II(BIAS) Equivalent Resistance REQ AC PARAMETER Open Loop Gain of Amp. 1 Open Loop Gain of Amp. 2 GV1 GV2 Output Power POUT Total Harmonic Distortion (f=1KHz) THD Gain Bandwidth Product GBW Power Supply Rejection (VCC=6V, VCC=3V) RR Muting GV(MUTE) TEST CONDITIONS VCC=3V, Mute=0.8V VCC=16V, Mute=0.8V VCC=3V, Mute=2V RL=16Ω, R1=75KΩ, VCC=3V RL=16Ω, R1=75KΩ, VCC=6V RL=16Ω, R1=75KΩ, VCC=12V VCC=6V, RF=75KΩ,RL=32Ω 2V<VCC<16V, IOUT=-75mA 2V<VCC<16V, IOUT=75mA Pin 3 Pin 2 f=1KHz, RL=32Ω VCC=3V, RL=16Ω, THD<10% VCC=6V, RL=32Ω, THD<10% VCC=12V, RL=100Ω, THD<10% VCC=6V, RL=32Ω, POUT=125mW VCC≥3V, RL=8Ω, POUT=20mW VCC≥12V, RL=32Ω, POUT=200mW C1=∞, C2=0.01μF C1=0.1μF, C2=0, f=1KHz C1=1μF, C2=5μF, f=1KHz Mute=2V, 1KHz<f<20KHz UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 1 -30 100 18 80 -0.35 55 250 400 TYP 2.7 4 3.3 5 65 100 1.15 1.25 2.65 5.65 0 30 Vcc-1 0.16 -100 -200 150 220 25 40 0 0.35 0.5 0.5 0.6 1.5 1 50 12 52 70 MAX UNIT mA mA μA V V V mV V V nA KΩ KΩ dB dB mW mW mW % % % MHz dB dB dB dB 4 of 8 QW-R107-038.I MC34119 LINEAR INTEGRATED CIRCUIT TYPICAL CIRCUIT VCC MUTE 0.001μF MUTE VCC 0.01μF 100KΩ 75KΩ 100KΩ 1 6 UTC MC34119 8 4 0.05μF 2 0.05μF 5 3 0.1μF UTC MC34119 8 4 0.05μF 7 2 7 0.05μF 5.0μF 5.1K 5.1K 5.0μF 5.1K VCC VCC 75KΩ 6 Audio Input 3KΩ 1 5 4 0.1μF UTC MC34119 8 3 2 VEE -1.0V~-8.0V UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4.7KΩ SPEAKER 5.1K SPEAKER 0.1μF Audio Input 5 3 1 SPEAKER 6 Audio Input 7 20KΩ MUTE 20KΩ 10KΩ 5 of 8 QW-R107-038.I MC34119 LINEAR INTEGRATED CIRCUIT TYPICAL CHARACTERISTICS Distortion Versus Power (f = 1, 3.0kHz, AVD = 12dB) Differential Gain Versus Frequency 40 Rf = 150kΩ, Ri = 6.0kΩ Differential Gain (dB) 32 Rf = 75kΩ, Ri = 3.0kΩ 24 Rf 16 0.1 Input Ri + VO1 #1 VO2 8 VO #2 Total Harmonic Distortion, THD (%) 10 VCC = 3.0V RL = 32Ω 8.0 VCC = 3.0V RL = 16Ω 6.0 4.0 0 0 100 1.0k 0 10k 20k 100 200 400 500 Device Dissipation, 32ΩLoad Device Dissipation, 16Ω Load 1200 1200 VCC = 16V Device Dissipation (mW) 1000 800 VCC = 6.0V 600 400 VCC = 3.0V 200 VCC = 12V VCC = 16V VCC = 12V 1000 Device Dissipation (mW) 300 Output Power, POUT (mW) Frequency, f (Hz) 800 600 400 VCC = 6.0V 200 VCC = 3.0V 0 0 0 100 200 300 0 400 100 200 300 Load Power (mW) Load Power (mW) Distortion Versus Power (f = 1.0kHz, AVD = 34dB) Distortion Versus Power (f = 3.0kHz, AVD = 34dB) 400 500 10 VCC = 3.0V RL = 16Ω 8.0 VCC = 3.0V RL = 32Ω VCC = 6.0V RL = 32Ω 6.0 VCC = 6.0V RL = 16Ω 4.0 VCC = 6.0V RL = 16Ω VCC = 12V,16V RL = 32Ω VCC =12V, 16V RL = 16Ω 2.0 THD, Total Harmonic Distortion (%) 10 THD, Total Harmonic Distortion (%) VCC = 12V,16V RL = 16Ω,32Ω VCC = 6.0V RL = 16Ω,32Ω 2.0 VCC = 3.0V RL = 16Ω VCC =6V RL = 16Ω,32Ω 8.0 VCC = 3.0V RL = 16Ω 6.0 4.0 VCC =12V,16V RL = 16Ω,32Ω 2.0 0 0 0 100 200 300 400 500 Output Power, POUT (mW) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 0 100 200 300 400 500 Output Power, POUT (mW) 6 of 8 QW-R107-038.I MC34119 TYPICAL CHARACTERISTICS(Cont.) ICD (μA) Output Low Level, VOL (V) Input 80mV/DIV VCC–VOH(V) Output 1.0V/DIV Input 1.0mV/DIV Output 20mV/DIV ICC , Power Supply Current (mA) LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 7 of 8 QW-R107-038.I MC34119 LINEAR INTEGRATED CIRCUIT UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 8 of 8 QW-R107-038.I