UNISONIC TECHNOLOGIES CO., LTD KA8602
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1 UNISONIC TECHNOLOGIES CO., LTD KA02 LOW VOLTAGE AUDIO POWER AMPLIFIER DESCRIPTION The UTC KA02 is the audio power amplifier available for low voltage. The UTC KA02 supplies differential outputs for maximizing output swing at low voltages. The UTC KA02 does not need coupling capacitors to the speaker. The gain of this amplifier is controlled easily by two external resistors. FEATURES *Wide operating supply voltage: V CC =2V~V *Low quiescent supply current( I CC =2.mA, typ) *Medium output power (P OUT =20mW at V CC =V, R L =32ohm, THD=0% *Load impedance range: ~00ohm *Mute function (I CC = A, typ) *Minimum number of external parts required. *Low distortion ORDERING INFORMATION Ordering Number Lead Free Halogen Free Package Packing KA02L-D0-T KA02G-D0-T DIP- Tube - KA02G-S0-R SOP- Tape Reel KA02L-D0-T ()Packing Type (2)Package Type (3)Green Package () T: Tube, R: Tape Reel (2) D0: DIP-, S0: SOP- (3) L: Lead Free, G: Halogen Free and Lead Free MARKING DIP- SOP- UTC KA Date Code L: Lead Free G: Halogen Free Lot Code of Copyright 20 Unisonic Technologies Co., Ltd
2 KA02 PIN CONFIGURATIONS PIN NAME DESCRIPTION (+) Analog Ground for the amplifiers. A F capacitor at this pin (with a F capacitor at pin ) provides 2dB (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. 2 (-) 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. 3 Output Amplifier s output. The DC level is about (V CC ~0.V)/2. 4 V CC DC supply voltage is applied to this pin (V CC =2~V). GND Ground pin. Output 2 Amplifier 2 s output. This signal is equal in amplitude, but 0 out of phase with that output, the DC level is about (V CC ~0.V)/2. 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.V), the IC is enabled for normal operation. When at a logic HIGH (2V to V CC ), the IC is disabled. If Mute is open, that is equivalent to a logic LOW. Ripple Rejection 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 is sufficient. BLOCK DIAGRAM Inverting Non- Inberting 2 - Amp + R R 3 Output - Amp 2 + Output 2 V CC 4 Bias Mute Ripplie Rejection GND UNISONIC TECHNOLOGIES CO., LTD 2 of
3 KA02 ABSOLUTE MAXIMUM RATINGS (T A =2 C, unless otherwise specified) PARAMETER SYMBOL RATINGS UNIT Supply Voltage V CC -~ V Output Current I OUT +-20 ma Maximum, Ripple Rejection, Mute Pin Voltage V I (max) -~Vcc+ V Applied Output Voltage( Output Pin When Disabled) V OUT -~Vcc+ V Temperature Junction T J - ~ +0 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 (T A =2 C, unless otherwise specified) PARAMETER SYMBOL RATINGS UNIT Supply Voltage V CC 2~ V Voltage at Mute V I(MUTE) 0~Vcc V Peak Load Current I L(PEAK) ±200 ma Load Impedance Z L ~00 Ω Differential Gain (KHz Bandwidth) G V 0~4 db Ambient Temperature T A -20~+0 C ELECTRICAL CHARACTERISTICS (V CC =V, T A =2, unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT DC PARAMETER V CC =3V, Mute=0.V 2. 4 ma Operating Current I C c V CC =V, Mute=0.V 3.3 ma V CC =3V, Mute=2V 00 A V CC =3V, R L =, R=K..2 V Output Voltage V OUT V CC =V, R L =, R=K 2. V V CC =2V, R L =, R=K. V Output Offset Voltage V O(OFF) V CC =V, R F =K, R L = mv Output High Level V OH 2V<V CC <V, I OUT =-ma Vcc~ V Output Low Level V OL 2V<V CC <V, I OUT =ma 0. V Bias Current I I(BIAS) na Equivalent Resistance R EQ Pin K Pin 2 40 K AC PARAMETER Open Loop Gain of Amp. Gv 0 db Open Loop Gain of Amp. 2 Gv2 f=khz, R L = db V CC =3V, R L =, THD<0% mw Output Power P OUT V CC =V, R L =32, THD<0% 20 mw Total Harmonic Distortion (f=khz) THD V CC =2V, R L =00, THD<0% 400 mw V CC =V, R L =32, P OUT =2mW 0. % V CC <3V, R L =, P OUT =20mW 0. % V CC <2V, R L =32, P OUT =200mW 0. % Gain Bandwidth Product GBW. MHz Power Supply Rejection (V CC =V, V CC =3V) PSRR C=, C2=0.0 F 0 db C=0. F, C2=0, f=khz 2 db C= F, C2= F, f=khz 2 db Muting G V(MUTE) Mute=2V, KHz<f<20KHz 0 db UNISONIC TECHNOLOGIES CO., LTD 3 of
4 KA02 APPLICATION CIRCUIT V CC (+.0V ~ +.0V) V CC kω Audio 0.μF 3kΩ 2 4 UTC KA kΩ 20kΩ Mute Vee (-.0V ~ -.0V) 0kΩ 20kΩ UNISONIC TECHNOLOGIES CO., LTD 4 of
5 KA02 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 of
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UNISONIC TECHNOLOGIES CO., LTD 300mA LDO REGULATOR DESCRIPTION The UTC LR9282 is a typical LDO (linear regulator) with the features of high output voltage accuracy, low supply current, low ON-resistance.
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UNISONIC TECHNOLOGIES CO., LTD CURRENT MODE PWM CONTROL CIRCUITS DESCRIPTION The UTC UC3842A/3843A provide the necessary functions to implement off-line or DC to DC fixed frequency current mode, controlled
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UNISONIC TECHNOLOGIES CO., 12 BTL OR 2 6 STEREO CAR RADIO POER AMPLIFIER DESCRIPTION The UTC TDA1519B is an integrated class B dual output amplifier. It contains two identical amplifiers with differential
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SOP-8 Pin assignment: 1. CD 8. VO2 2. FC2 7. Gnd 3. FC1 6. Vcc 4. Vin 5. VO1 General Description The TS34119 is a low power audio amplifier, it integrated circuit intended (primarily) for telephone applications,
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UNISONIC TECHNOLOGIES CO., LTD L1131C Preliminary CMOS IC LOW NOISE 150mA LDO REGULATOR DESCRIPTION The UTC L1131C is a typical LDO (linear regulator) with the features of High output voltage accuracy,
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UNISONIC TECHNOLOGIES CO., LTD PWM CONTROL 3A STEP-DOWN CONVERTER DESCRIPTION UTC P1786 consists of 3A step-down switching regulator control which includes a reference voltage source, oscillation circuit,
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UNISONIC TECHNOLOGIES CO., LTD 3-TERMINAL 0.1A NEGATIVE VOLTAGE REGULATOR DESCRIPTION The UTC 79LXX family is monolithic fixed voltage regulator integrated circuit. They are suitable for applications that
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UNISONIC TECHNOLOGIES CO., LTD 2W+2W AMPLIFIER WITH DC CONTROL DESCRIPTION The UTC TDA7496L is a class AB power amplifier with linear volume control, Stand-by and mute functions, it s mainly using for
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UNISONIC TECHNOLOGIES CO., LTD 78DXX 3-TERMINALS 0.5A POSITIVE VOLTAGE REGULATOR DESCRIPTION The UTC 78DXX family is monolithic fixed voltage regulator integrated circuit. They are suitable for applications
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TS39/A/B/C UNISONIC TECHNOLOGIES CO., LTD LOW POWER SINGLE VOLTAGE COMPARATOR DESCRIPTION The UTC TS39/A/B/C consists of a low power voltage comparator designed specifically to operate from a single supply
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UNISONIC TECHNOLOGIES CO., LTD UD24121 1.2A, 24V, 1.4MHz STEP-DOWN CONVERTER DESCRIPTION The UTC UD24121 is a monolithic step-down switching mode converter with a built-in power MOSFET. It regulates input
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UNISONIC TECHNOLOGIES CO., LTD CD4541 PROGRAMMABLE TIMER DESCRIPTION The CD4541 programmable timer comprise a 16-stage binary counter, an integrated oscillator for use with an external capacitor and two
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SINGLE TIMER UNISONIC TECHNOLOGIES CO., LTD DESCRIPTION The UTC NE555 is a highly stable timer integrated circuit. It can be operated in both Astable and Monostable mode. With monostable operation, the
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UNISONIC TECHNOLOGIES CO., LTD 00 ma LOW-DROPOUT VOLTAGE REGULATOR DESCRIPTION The UTC LP290/29 are monolithic integrated voltage regulators with low dropout voltage, and low quiescent current. It includes
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LOW FREQUENCY POWER AMPLIFIER DESCRIPTION The UTC TA8227AP is an audio power IC with built-in two channels developed for portable radio cassette tape recorder with power ON / OFF switch. Because of the
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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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UNISONIC TECHNOLOGIES CO., LTD 3563 CMOS IC PC POWER SUPPLY SUPERVISORS DESCRIPTION The UTC 3563 is a monolithic control circuit containing the primary functions required for DC to DC converters and highside-sensed
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