UNISONIC TECHNOLOGIES CO., LTD
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1 UNISONIC TECHNOLOGIES CO., LTD.W DUAL AUDIO POWER AMPLIFIER DESCRIPTION UTC A83 is an audio power IC with builtin two channels developed for portable radio cassette tape recorder. Because of the parts reduction and sip (Single In line Package), space merit is remarkable. Thermal shut down protection circuit is built in. FEATURES * High Power * P OUT =.W/CH (Typ.) : (V CC = 9V, R L = Ω,, THD = 1%) P OUT =.W/CH (Typ.) : (V CC = 1V, R L = Ω,, THD = 1%) * Low popping noise at power ON * Small Quiescent Current : I Q = 19mA (Typ.), (V CC = 9V, V IN = ) * Soft Clip * Builtin thermal shut down protection circuit * Best for supply voltage 9V, 1V * Operation supply voltage range: V CC = ~1V FSIP1H *Pbfree plating product number: A83L ORDERING INFORMATION Order Number Normal Lead Free Plating Package Packing A83F1T A83LF1T FSIP1H Tube A83LF1T (1)Packing Type ()Package Type (3)Lead Plating (1) T: Tube () F1: FSIP1H (3) L: Lead Free Plating, Blank: Pb/Sn 1 of 7 Copyright Unisonic Technologies Co., Ltd QWR177,A
2 PIN DESCRIPTION (TOP VIEW) VCC B.S. OUT PowerGND NF IN PreGND IN1 NF1 RIPPLE OUT1 B.S.1 FSIP1H UNISONIC TECHNOLOGIES CO., LTD of 7 QWR177,A
3 ABSOLUTE MAXIMUM RATINGS (Ta = ) PARAMETER SYMBOL RATINGS UNIT Supply Voltage V CC V Output Current (Peak/CH) I O(PEAK). A Power Dissipation P D 1. W Junction Temperature T J 1 C Operating Temperature T OPR ~ 7 C Storage Temperature T STG ~1 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. TYPICAL DC VOLTAGE OF EACH TERMINAL (V CC = 9V, Ta = ) TERMINAL NO DC VOTAGE (V) GND.1. GND. 8. V CC ELECTRICAL CHARACTERISTICS (Ta =, V CC = V, R G = Ω, R L = 1kΩ,, unless otherwise specified.) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Quiescent Current I Q V IN = ma Input Offset Voltage V, V 7 mv Output Power P OUT (1) THD = 1%.. P OUT () THD = 1%, V CC = 1V. W Voltage Gain G V (1) R F = 8Ω, V OUT = dbm 3 7 G V () R F =, V OUT = dbm db Output Noise Voltage en R G = 1kΩ, BW = Hz~kHz.3 1. mv RMS Input Resistance R IN 3 kω Ripple Rejection Ratio RR R G = Ω, V RIP =.V RMS f RIP = 1Hz, db Cross Talk C.T R G = Ω, Amp1 V OUT = dbm, f RIP = 1kHz, db Total Harmonic Distortion THD P OUT = 1W/CH. 1. % UNISONIC TECHNOLOGIES CO., LTD 3 of 7 QWR177,A
4 TEST CIRCUIT & BLOCK DIAGRAM V CC C1 µf V CC B.S.1 IN 1 C1 7µF * C IN C3 µf R F1 8O IN1 NF1 Ripple 3O ch 1 ko Bias Circuit Thermal Shut Down Protection Circuit OUT1 C.1µF C 1µF C8 1µF 1µF R L OUT 1 IN C 7µF * C IN R F 8O IN NF 3O ch ko C OUT 1µF B.S. C9 1µF C7.1µF R L OUT Pre GND Power GND * This IC can be used without coupling capacitor (C IN ). If volume slide noise occurred dy input offset voltage is undesirable, it needs to use the capacitor (C IN ). UNISONIC TECHNOLOGIES CO., LTD of 7 QWR177,A
5 APPLICATION INFORMATION AND APPLICATION METHOD 1. ADJUSTMENT OF VOLTAGE GAIN The voltage gain G V is obtained as follows by R1, R and R F in Fig.1. G V = log RFR1R RFR1 When R F = G V = db (Typ.) When R F = 8Ω G V = db (Typ.) By increasing R F, reduction of G V is possible, However, since the feedback increase is liable to produce oscillation, it is recommended to use this at db or over. RF /7 /8 INPUT R1 3Ω AMP R kω /1 OUTPUT Fig.1.. THERMAL SHUTDOWN CIRCUIT The thermal shutdown circuit is built in for the purpose of preventing the destruction of IC due to the abnormal temperature rise when the heat radiation is insufficient. UNISONIC TECHNOLOGIES CO., LTD of 7 QWR177,A
6 APPLICATION INFORMATION AND APPLICATION METHOD (Cont.) 3. INPUT STAGE The input circuit of this IC is as shown in Fig.. PNP TR: Q1 is provided in the input circuit so as to make its usage possible without the input coupling capacitor. However, at pins and 7, max mv offset voltage is produced. Application after checking volume slide noise is recommended. For cutting the volume slide noise, inset the input capacitor: C IN in series to interrupt the DC component. Q Q3 OUTPUT kω /1 C IN INPUT /7 Q1 3kΩ 3Ω to DRIVER PreGND /8 to BIAS RF 7μF Fig... OSCILLATION PERVENTIVE MEASURES For oscillation preventive capacitor C and C7 between the output terminal and GND, it is recommended to use polyester film capacitor having good characteristics for temperature and for high frequency. Since the characteristics of the capacitor is liable to be influenced by the temperature, use this capacitor after the temperature test to check the oscillation allowance. In addition, as the position of the electrolytic capacitor has a remarkable influence on the oscillation, connect C1 to V CC at the nearest possible position from power GND. At using this application with the voltage gain reduced, oscillation is liable to be produced. Apply the capacitor after checking enough for its capacity, type and mounting position.. INPUT VOLTAGE When the excessive signal is input, turningup is produced in the clip waveform. The turningup point is V IN = 3mV RMS (Typ.): V CC = 9V, R L = Ω, : Enough care must be taken for this phenomenon. UNISONIC TECHNOLOGIES CO., LTD of 7 QWR177,A
7 TYPICAL CHARACTERISTICS Output Power, POUT (W) 1 8 R L = Ω P OUT V CC R L = 3Ω 1 R L = Ω 1 THD = 1% Maxmum Power Dissipation, PD(MAX) (W) P D(MAX) V CC R L = Ω 8 1 THD = 1% R L = Ω R L = 3Ω Supply Voltage, V CC (V) Supply Voltage, V CC (V) Power Dissipation, PD (W) 3 1 P D P OUT V CC = 1V V CC = 9V V CC = V R L = Ω Power Dissipation, PD (W) 3 1 P D P OUT R L = Ω R L = 3Ω R L = Ω V CC = 9V Output Power, P OUT (W) Output Power, P OUT (W) 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 7 of 7 QWR177,A
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UNISONIC TECHNOLOGIES CO., LTD THREE-TERMINAL LOW POWER VOLTAGE REGULATORS DESCRIPTION The UTC series is a set of three-terminal low power voltage regulators implemented in CMOS technology. They are available
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LM87 UNIONIC TECHNOLOGIE CO., LTD W AUDIO POWER AMPLIFIER DECRIPTION The UTC LM87 is a monolithic power amplifier offering very low distortion and high quality performance for consumer audio applications.
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LM UNISONIC TECHNOLOGIES CO., LOW VOLTAGE AUDIO POWER AMPLIFIER DESCRIPTION SOP The UTC LM is a power amplifier, designed for use in low voltage consumer applications. The gain is internally set to to
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UNISONIC TECHNOLOGIES CO., LTD 2A OUTPUT TYPE LOW POWER-LOSS VOLTAGE REGULATOR FEATURES * 2.A output type * Output voltage precision: ±2.5% * Built-in ON/OFF control function and over-current protection
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UNISONIC TECHNOLOGIES CO., LTD DUAL OPERATIONAL AMPLIFIER AND CURRENT CONTROLLER DESCRIPTION The UTC is a monolithic IC that includes one independent op-amp and another op-amp for witch the non inverting
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. W 2 (8 V, 8 Ω) Power Amplifier with Mute Function and Volume Control Overview The is a monolithic integrated circuit designed for. W (8 V, 8 Ω) output audio power amplifier. It is a dual channel SEPP
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UNISONIC TECHNOLOGIES CO., LTD DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUITS SOP-6 DESCRIPTION The UTC TL45 incorporates on a single monolithic chip all the functions required in the construction of two
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UNISONIC TECHNOLOGIES CO., LTD STEREO 2.6W AUDIO POWER AMPLIFIER (WITH DC_VOLUME CONTROL) DESCRIPTION As an audio power amplifier, UTC PA7469 can provides precise DC volume control, and a stereo bridged
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Ordering number : ENA0078 LA42352 Monolithic Linear IC 5W 2-Channel AF Power Amplifier With DC Volume Control Overview LA42352 is 5W 2-channel AF power amplifier with DC volume control intended for televisions.
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UNISONIC TECHNOLOGIES CO., LTD L8312 Preliminary LINEAR INTEGRATED CIRCUIT DUAL POLARIZATION AND TONE SWITCH CONTROLLER DESCRIPTION The UTC L8312 is specially designed integrated circuit for control satellite
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UNISONIC TECHNOLOGIES CO., LTD MC34063A DC TO DC CONVERTER CONTROLLER DESCRIPTION The UTC MC34063A is a monolithic regulator subsystem, intended for use as DC to DC converter. This device contains a temperature
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TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA8252H Max Power 37W BTL 4ch Audio Power IC The TA8252H is 4ch BTL audio power amplifier for car audio application. This IC can generate more
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TL74 UNISONIC TECHNOLOGIES CO., LTD LOW NOISE QUAD JFET OPERATIONAL AMPLIFIER DESCRIPTION The UTC TL74 is a high speed JFET input quad operational amplifier. It incorporates well matched, high voltage
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UNISONIC TECHNOLOGIES CO., LTD 1.0A FAST ULTRA LOW DROPOUT LINEAR REGULATOR DESCRIPTION The UTC LR1801/LR1801AD operate from a +1.5V ~ +6V input supply as fast ultra low-dropout linear regulators. Wide
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UNISONIC TECHNOLOGIES CO., LTD PRECISION TIMERS DESCRIPTION The UTC USA555 monolithic timing circuit is a highly stable controller capable of producing accurate time delays or oscillation. In the time-delay
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UNISONIC TECHNOLOGIES CO., LTD M54133A Preliminary LINEAR INTEGRATED CIRCUIT EARTH LEAKAGE CURRENT DETECTOR DESCRIPTION The UTC M54133A is a semiconductor integrated circuit developed for use in high-speed
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UNISONIC TECHNOLOGIES CO., LTD P1580 Preliminary LINEAR INTEGRATED CIRCUIT 380KHz, 2.5A STEP-DOWN ITCHING REGULATOR DESCRIPTION The UTC P1580 is a current mode, PWM controller with 380kHz fixed frequency.
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UNISONIC TECHNOLOGIES CO., LTD 380KHz, 3A STEP-DOWN SWITCHING REGULATOR DESCRIPTION The UTC P2583 is a fixed 380kHz frequency, current mode, PWM controller with an internal power MOSFET. It achieves 3A
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UNISONIC TECHNOLOGIES CO., LTD 38V 5A SYNCHRONOUS BUCK CONVERTER DESCRIPTION The UTC UD38501 is a monolithic synchronous buck regulator. The device integrates internal high side and external low side power
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UNISONIC TECHNOLOGIES CO., LTD W BRIDGE AMPLIFIER FOR CAR RADIO DESCRIPTION The UTC PA05 is class B dual audio power amplifier, have designed for car radio application. FEATURES * High output power: P
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UNISONIC TECHNOLOGIES CO., LTD 378RXX Preliminary LINEAR INTEGRATED CIRCUIT 4 TERMINAL 3A OUTPUT LOW DROP VOLTAGE REGULATOR DESCRIPTION The UTC 378RXX Series are Low Drop Voltage Regulator suitable for
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