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| UNISONIC TECHNOLOGIES CO., LTD L4863 DUAL 2.2W AUDIO AMPLIFIER PLUS STEREO HEADPHONE FUNCTION DESCRIPTION The UTC L4863 is a dual bridge-connected audio power amplifier. It combines dual bridge speaker amplifiers and stereo headphone amplifiers on one chip to simplify audio system design. In addition, the headphone input pin allows the amplifiers to operate in single-ended mode when driving stereo headphones. The IC could deliver different power by packages as below (when connected to a 5V supply with less than 1.0% THD+N.): HTSSOP-20, 4 load: 2.2W HTSSOP-20, 3 load: 2.5W(with forced-air cooled) SOP/DIP , 8 load: 1.1W. The UTC L4863 features an externally controlled, low-power consumption shutdown mode, a stereo headphone amplifier mode, and thermal shutdown protection. It also utilizes circuitry to reduce "clicks and pops" during device turn-on. DIP-16 CMOS IC SOP-16 SOP-18 HTSSOP-20 *Pb-free plating product number: L4863L FEATURES * "Click and pop" suppression * Thermal shutdown protection * Unity-gain stable * Stereo headphone amplifier mode ORDERING INFORMATION Order Number Normal Lead Free Plating L4863-D16-T L4863L-D16-T L4863-S16-R L4863L-S16-R L4863-S16-T L4863L-S16-T L4863-S18-R L4863L-S18-R L4863-S18-T L4863L-S18-T L4863-N20-R L4863L-N20-R L4863-N20-T L4863L-N20-T Package DIP-16 SOP-16 SOP-16 SOP-18 SOP-18 HTSSOP-20 HTSSOP-20 Packing Tube Tape Reel Tube Tape Reel Tube Tape Reel Tube www.unisonic.com.tw Copyright (c) 2005 Unisonic Technologies Co., Ltd 1 of 10 QW-R107-050,A L4863 PIN CONFIGURATION CMOS IC THERMAL DATA PARAMETER Thermal resistance (Junction to Ambient) SOP-16 SOP-18 DIP-16 HTSSOP-20 SOP-16 SOP-18 DIP-16 HTSSOP-20 SYMBOL JA RATINGS 80 90 63 90 20 2 20 2 UNIT /W /W /W /W /W /W /W /W Thermal resistance (Junction to Case) JC UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 10 QW-R107-050,A L4863 ABSOLUTE MAXIMUM RATING CMOS IC PARAMETER SYMBOL RATINGS UNIT Supply Voltage VDD 6.0 V Recommended Supply Voltage Range VDD 2.0 ~ 5.5 V Input Voltage VIN -0.3 ~ VDD+0.3 V Power Dissipation PD Internally limited Junction Temperature TJ +125 Operating Temperature TOPR -40 ~ +85 Storage Temperature TSTG -65 ~ +150 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. ELECTRICAL CHARACTERISTICS (Notes 1)(VDD=5V, Ta =25, unless otherwise specified) PARAMETER FOR ENTIRE IC SYMBOL VDD IDD ISD VIH VIL VIN=0V, IOUT=0A, HP-IN=0V VIN=0V, IOUT=0A, HP-IN=4V VDD applied to the SHUTDOWN pin TEST CONDITIONS MIN TYP MAX UNIT 2 6 2 4 5.5 20 V mA A V V mV W Supply Voltage Quiescent Power Supply Current (Note 2) Shutdown Current High Headphone Input Voltage Low FOR BRIDGED-MODE OPERATION Output Offset Voltage HTSSOP-20 11.5 5.8 0.7 0.8 5 2.5 2.2 3.2 2.7 1.1 1.5 0.34 0.3 0.3 50 VO(OFF) VIN=0V THD=1%, f=1kHz RL=3 RL=4 RL=3 RL=4 RL=8 RL=8 Output Power (measured at the device terminals) POUT SOP/DIP THD+N=10%, f=1kHz THD=1%, f=1kHz 1.0 W THD+N=10%, f=1kHz THD+N=1%, f=1kHz, RL=32 W 20Hzf20kHz, Total Harmonic HTSSOP-20 RL=4, POUT=2W THD+N % AVD=2 Distortion + Noise SOP/DIP RL=8, POUT=1W VDD=5V, VRIPPLE=200mVRMS, RL=8, 67 dB Power Supply Rejection Ratio PSRR CB=1.0F Channel Separation XTALK f=1kHz, CB=1.0F 90 dB Signal To Noise Ratio SNR VDD=5V, POUT=1.1W, RL=8 98 dB FOR SINGLE-ENDED OPERATION Output Offset Voltage VO(OFF) VIN=0V 5 50 mV THD=0.5%, f=1kHz, RL=32 75 85 Output Power POUT THD+N=1%, f=1kHz, RL=8 mW 340 THD+N=10%, f=1kHz, RL=8 440 AV=-1, POUT=75mW,20Hzf20kHz, Total Harmonic Distortion + Noise THD+N 0.2 % RL=32 Power Supply Rejection Ratio PSRR CB=1.0F, VRIPPLE=200mVRMS, f=1kHz 52 dB Channel Separation XTALK f=1kHz, CB=1.0F 60 dB Signal To Noise Ratio SNR VDD=5V, POUT=340mW, RL=8 95 dB Note:1. All voltages are measured with respect to the ground (GND) pins, unless otherwise specified. 2. Depends on the offset voltage when a practical load is connected to the amplifier. 3. When driving 3 or 4 and operating on a 5V supply, the HTSSOP-20 package must be mounted to the circuit board that has a minimum of 2.5 in2 of exposed, uninterrupted copper area connected to the exposed-DAP. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 10 QW-R107-050,A L4863 TYPICAL APPLICATION CIRCUIT VDD CI RF 1F 20K + 6 4,13 - IN A +IN A Bypass CS 0.1F TANT AMP 1A + 20K -OUT A 5 20K 20K AMP 2A + +OUT A AMP 1B + 20K CMOS IC Audio Input RI 8 20K CB 10 50K VDD/2 50K CONTROL PIN RL 1k RING 8 3 To HP-IN Circuit CO 100F + RL 8 SLEEVE TIP HEADPHONE JACK 1k CO 100F + 20K VDD RF 20K 100k 1 Shutdown To Control Pin on 16 HP-IN Headphone jack 100K GND 2,7,15 Audio Input CI (CB size) 0.33F 1F RI 11 -IN B 9 +IN B -OUT B 12 20K 20K 14 AMP 2B + +OUT B Note: Pin out shown for DIP-16 and SOP-16 packages. Refer to the PIN CONFIGURATION for the pin out of other packages. Figure 1.Typical Audio Amplifier Application Circuit EXTERNAL COMPONENTS DESCRIPTION Components RI CI RF CS CB Functional Description The inverting input resistance, along with RF, set the closed-loop gain. RI, along with CI form a high pass filter with fc=1/(2RICI) The input coupling capacitor blocks DC voltage at the amplifier's input terminals. CI, along with RI, create a high pass filter with fc=1/(2RICI). Refer to the section. Selecting Proper External Components, for an explanation of determine the value of CI. The feedback resistance, along with RI, set the closed-Ioop gain. The supply bypass capacitor. Refer to the Power Supply Bypassing section for information about properly placing and selecting the value of, this capacitor. The capacitor, CB, filters the half-supply voltage present on the Bypass pin. Refer to the Selecting Proper External Components section for information concerning proper placement and selecting CB'S value. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 10 QW-R107-050,A L4863 TYPICAL CHARACTERISTICS (For HTSSOP-20) CMOS IC THD+N (%) THD+N (%) 10 THD+N vs Output Power VDD=5V, RL=4 BW<80kHz 10 THD+N vs Frequency VDD=5V, RL=4 POUT=2.0W, BW<80kHz THD+N (%) 1 20Hz 0.1 20KHz THD+N (%) 1 0.1 1KHz 0.01 0 10m 0.1 Level (W) 1 3 0.01 0 20 100 1k Frequency (Hz) 10k 20k Power Dissipation (W) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 10 QW-R107-050,A L4863 TYPICAL CHARACTERISTICS(Cont.) (For DIP-16, SOP-16 and SOP-18) CMOS IC THD+N (%) THD+N (%) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw THD+N (%) THD+N (%) THD+N (%) THD+N(%) 6 of 10 QW-R107-050,A L4863 TYPICAL CHARACTERISTICS(Cont.) 10 THD+N vs Output Power VDD=-3.3V, AVD= -2 RL=4 THD+N (%) 1 THD+N (%) f=20kHz f=20Hz 0.1 f=1kHz 10 VDD=3.3V, AVD=-2 POUT=750mW, RL=4 1 CMOS IC THD+N vs Frequency 0.1 0.01 10m 0.1 Level (W) 1 2 0.01 20 100 1k Frequency (Hz) 10k 20k THD+N (%) THD+N (%) 1000 Output Power vs Load Resistance VDD=3.3V, AV= -1 800 f=1kHz, BW<80kHz 600 400 200 0 0 20 30 10 Load Resistance () 40 THD+N=1% THD+N=10% 800 Power Dissipation vs Supply Voltage VDD=3.3V Single-ended 600 4 400 8 200 16 0 0 250 500 750 Power Out (mW) 1000 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 7 of 10 QW-R107-050,A L4863 TYPICAL CHARACTERISTICS(Cont.) CMOS IC Output Power (W) Output Power (W) 1 0.8 0.6 0.4 0.2 0 Output Power vs Load resistance VDD=5V f=1kHz AV=-1 Single Ended BW<80kHz Output Power (W) Output Power (W) 0.7 0.6 0.5 0.4 0.3 Output Power vs Supply Voltage RL=8 RL=16 RL=32 10% THD+N 1% THD+N 0 10 20 30 40 50 60 Load Resistance () 70 0.2 0.1 0 2 VDD=5V f=1kHz THD+N1.0% Bridged Load BW<80kHz 1.25 2.5 0.5 0.75 1 Output Power (W) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 8 of 10 QW-R107-050,A L4863 TYPICAL CHARACTERISTICS(Cont.) CMOS IC Output Level (dB) PSRR (dB) GAIN (dB) Output Level (dB) Output Noise Voltage (v) Power Dissipation (W) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 9 of 10 QW-R107-050,A Phase (o) L4863 TYPICAL CHARACTERISTICS(Cont.) 15 12 9 6 3 0 SINGLE-ENDED (HP-IN=VDD) 2 2.5 3 3.5 4 4.5 Supply Voltage (V) 5 5.5 Supply Current vs Supply Voltage VIN=0V No Load BRIDGED (HP-IN=GND) Dropout Voltage ( V ) CMOS IC 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. Supply Current (mA) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 10 of 10 QW-R107-050,A |
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