Low Voltage Audio Amplifier MC34119 Series Low Voltage Audio Amplifier General Description • The MC34119 series are 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. DIP-8 SOP-8 Features • Wide operating supply voltage: VCC=2V to 16V • Low quiescent supply current (ICC=2.7mA, typ.) • Medium power output over 250mW at VCC=6V, RL=32Ω, THD＜10% • • • • • TSSOP-8 Load impedance range (8Ω~100Ω) Low total harmonic distortion (0.5% typ.) Mute function (ICC=65μA, typ.) Minimum number of external parts required RoHS compliant and halogen free Ordering Information MC34119 □□□ - 85 - □□□□ Circuit Type Outline P8: DIP-8 S8: SOP-8 Packing Code TU: Tube, RoHS UG: Tube, Halogen Free TR30: 13” Reel, RoHS RG30: 13” Reel, Halogen Free Factory Location Code TS8: TSSOP-8 TAITRON COMPONENTS INCORPORATED www.taitroncomponents.com Tel: Fax: (800)-TAITRON (800)-824-8766 (800)-TAITFAX (800)-824-8329 (661)-257-6060 (661)-257-6415 Rev. A/AH Page 1 of 13 Low Voltage Audio Amplifier MC34119 Series Pin Configuration Pin Description Pin No. Pin Name Description 1 Mute This pin can be used to power down the IC to converse power, or for muting, or both. When 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”. 2 Ripple Rejection 3 Input(+) 4 Input(-) 5 Output 1 6 VCC DC supply voltage is applied to this pin (VCC=2~16V). 7 GND Ground pin. 8 Output 2 A capacitor at this pin increase power supply rejection, and affects turn-on time. This pin 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) 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 impedance. The feedback resistor is connected between this pin and output 1. Amplifier output 1. The DC level is about (VCC~0.7V)/2. Amplifier output 2. This signal is equal in amplitude, but 180°out of phase with that output 1, the DC level is about (VCC~0.7V)/2. Rev. A/AH www.taitroncomponents.com Page 2 of 12 Low Voltage Audio Amplifier MC34119 Series Block Diagram Absolute Maximum Ratings (TA=25°C) Symbol Description Ratings Unit -1 ~ +18 V VCC Supply Voltage IOUT ±250 mA VIN Output Current Maximum Input, Ripple Rejection, Mute Pin Voltage -1 ~ +1 V VOUT Applied Output Voltage (Output Pin When Disabled) -1 ~ +1 V +125 °C TJ Junction Temperature TOPR Operating Temperature -20 ~ +85 °C TSTG Storage Temperature -40 ~ +150 °C Rev. A/AH www.taitroncomponents.com Page 3 of 12 Low Voltage Audio Amplifier MC34119 Series Note: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged. 2. Absolute maximum ratings are stress ratings only and functional device operation is not implied. Recommended Operation Conditions (TA=25°C) Symbol VCC ZL IL(PEAK) ∆GV VI(MUTE) Ta Description Ratings Unit Supply Voltage 2 ~ 16 V Load Impedance 8 ~ 100 Ω Peak Load Current ±200 mA Differential Gain (5KHz Bandwidth) 0 ~ 46 dB Voltage at Mute 0 ~ VCC V -20 ~ +70 °C Ambient Temperature Electrical Characteristics (VCC=6V, TA=25°C, Unless otherwise specified) Symbol Description Min. Typ. Max. Unit 1 -30 100 18 2.7 3.3 65 1.15 2.65 5.65 0 VCC-1 0.16 -100 150 25 4 5 100 1.25 30 -200 220 40 mA mA µA V V V mV V V nA KΩ KΩ 80 -035 0 0.35 dB dB Conditions DC Parameter ICC VOUT Operating Current Output Voltage VO(OFF) VOH VOL II(BIAS) Output Offset Voltage Output High Level Output Low Level Input Bias Current REQ Equivalent Resistance AC Parameter GV1 Open Loop Gain of Amp. 1 GV2 Open Loop Gain of Amp. 2 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 RL=32Ω, RF=75KΩ, VCC=6V 2V<VCC<16V, IOUT=-75mA 2V<VCC<16V, IOUT=75mA Pin 3 Pin 2 f=1KHz, RL=32Ω Rev. A/AH www.taitroncomponents.com Page 4 of 12 Low Voltage Audio Amplifier MC34119 Series Symbol Description POUT Output Power THD Total Harmonic Distortion (f=1KHz) GBW Gain Bandwidth Product RR Power Supply Rejection (VCC=6V, ΔVCC=3V) GVMUTE) Muting Min. Typ. Max. Unit Conditions 55 250 400 50 70 0.5 0.5 0.6 1.5 12 52 - 1 -- mW mW mW % % % MHz dB dB dB dB 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 Typical Circuit Rev. A/AH www.taitroncomponents.com Page 5 of 12 Low Voltage Audio Amplifier MC34119 Series Typical Characteristics Curves Fig.2- Distortion vs. Power (f=3.0KHz, AVD=12dB) Differential Gain (dB) Total Harmonic Distortion, THD (%) Fig.1- Differential Gain vs. Frequency Output Power (mW) Fig.3- Device Dissipation, 16Ω Load Fig.4- Device Dissipation, 32Ω Load Device Dissipation (mW) Device Dissipation (mW) Frequency (Hz) Load Power (mW) Load Power (mW) Rev. A/AH www.taitroncomponents.com Page 6 of 12 Low Voltage Audio Amplifier MC34119 Series Fig.6- Distortion vs. Power (f=3.0KHz, AVD=34dB) Total Harmonic Distortion, THD (%) Total Harmonic Distortion, THD (%) Fig.5- Distortion vs. Power (f=1.0KHz, AVD=34dB) Output Power (mW) Output Power (mW) Fig.7- Power Supply Current input 1.0mV/DIV Power Supply Current (mA) Output 20mV/DIV Fig.8- Small Signal Response 20µS/DIV Supply Voltage (V) Rev. A/AH www.taitroncomponents.com Page 7 of 12 Low Voltage Audio Amplifier MC34119 Series Fig.10- VCC-VOH @ VO1, VO2 vs. Load Current 1.0V/DIV 80mV/DIV VCC-VOH (V) Output input Fig.9- Large Signal Response 20µS/DIV Load Current (mA) Fig.12- Input Characteristics @ CD (Pin 1) ICD (µA) Output Low Level (V) Fig.11- VOL @ VO1, VO2 vs. Load Current Load Current (mA) Chip Disable Voltage (V) Rev. A/AH www.taitroncomponents.com Page 8 of 12 Low Voltage Audio Amplifier MC34119 Series Dimensions in mm(inch) DIP-8 Rev. A/AH www.taitroncomponents.com Page 9 of 12 Low Voltage Audio Amplifier MC34119 Series SOP-8 Rev. A/AH www.taitroncomponents.com Page 10 of 12 Low Voltage Audio Amplifier MC34119 Series TSSOP-8 Rev. A/AH www.taitroncomponents.com Page 11 of 12 Low Voltage Audio Amplifier MC34119 Series How to contact us: US HEADQUARTERS 28040 WEST HARRISON PARKAWAY, VALENCIA, CA 91355-4162 Tel: (800) TAITRON (800) 824-8766 (661) 257-6060 Fax: (800) TAITFAX (800) 824-8329 (661) 257-6415 Email: [email protected] Http://www.taitroncomponents.com TAITRON COMPONENTS MEXICO, S.A .DE C.V. BOULEVARD CENTRAL 5000 INTERIOR 5 PARQUE INDUSTRIAL ATITALAQUIA, HIDALGO C.P. 42970 MEXICO Tel: +52-55-5560-1519 Fax: +52-55-5560-2190 TAITRON COMPONETS INCORPORATED E REPRESENTAÇÕES DO BRASIL LTDA RUA DOMINGOS DE MORAIS, 2777, 2.ANDAR, SALA 24 SAÚDE - SÃO PAULO-SP 04035-001 BRAZIL Tel: +55-11-5574-7949 Fax: +55-11-5572-0052 TAITRON COMPONETS INCORPORATED, SHANGHAI REPRESENTATIVE OFFICE METROBANK PLAZA, 1160 WEST YAN’ AN ROAD, SUITE 1503, SHANGHAI, 200052, CHINA Tel: +86-21-5424-9942 Fax: +86-21-5424-9931 Rev. A/AH www.taitroncomponents.com Page 12 of 12