L4863 UTC | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 10
Technical content
UNISONIC TECHNOLOGIES CO., LTD L4863 CMOS IC www.unisonic.com.tw 1 of 10 Copyright © 2005 Unisonic Technologies Co., Ltd QW-R107-050,A DUAL 2.2W AUDIO AMPLIFIER PLUS STEREO HEADPHONE FUNCTION DESCRIPTION The UTC L4863 is a dual bridge-connected audio power amplifier. It combines dual br idge 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 Ω load: 2.2W - HTSSOP-20, 3 Ω load: 2.5W(with forced-air cooled) - SOP/DIP , 8 Ω 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. FEATURES * “Click and pop” suppression * Thermal shutdown protection * Unity-gain stable * Stereo headphone amplifier mode DIP-16 SOP-16 HTSSOP-20 SOP-18 *Pb-free plating product number: L4863L ORDERING INFORMATION Order Number Normal Lead Free Plating Package Packing L4863-D16-T L4863L-D16-T DIP-16 Tube L4863-S16-R L4863L-S16-R SOP-16 Tape Reel L4863-S16-T L4863L-S16-T SOP-16 Tube L4863-S18-R L4863L-S18-R SOP-18 Tape Reel L4863-S18-T L4863L-S18-T SOP-18 Tube L4863-N20-R L4863L-N20-R HTSSOP-20 Tape Reel L4863-N20-T L4863L-N20-T HTSSOP-20 Tube
UNISONIC TECHNOLOGIES CO., LTD 2 of 10 www.unisonic.com.tw Q W - R 1 0 7 - 0 5 0 , A PIN CONFIGURATION THERMAL DATA PARAMETER SYMBOL RATINGS UNIT SOP-16 80 ℃/W SOP-18 90 ℃/W DIP-16 63 ℃/W Thermal resistance (Junction to Ambient) HTSSOP-20 θJA 90 ℃/W SOP-16 20 ℃/W SOP-18 2 ℃/W DIP-16 20 ℃/W Thermal resistance (Junction to Case) HTSSOP-20 θJC 2 ℃/W
UNISONIC TECHNOLOGIES CO., LTD 3 of 10 www.unisonic.com.tw Q W - R 1 0 7 - 0 5 0 , A ABSOLUTE MAXIMUM RATING PARAMETER SYMBOL RATINGS UNIT Supply Voltage V DD 6.0 V Recommended Supply Voltage Range V DD 2.0 ~ 5.5 V Input Voltage V IN -0.3 ~ V DD+0.3 V Power Dissipation P D Internally limited Junction Temperature T J +125 ℃ Operating Temperature T OPR -40 ~ +85 ℃ Storage Temperature T STG -65 ~ +150 ℃ Note Absolute maximum ratings are those values be yond 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 SYMBOL TEST CONDITIONS MIN TYP MAX UNIT FOR ENTIRE IC Supply Voltage V DD 2 5.5 V VIN=0V, IOUT=0A, HP-IN=0V 6 11.5 20Quiescent Power Supply Current (Note 2) IDD VIN=0V, IOUT=0A, HP-IN=4V 5.8 mA Shutdown Current I SD V DD applied to the SHUTDOWN pin 2 0.7 μA High V IH 4 V Headphone Input Voltage Low V IL 0.8 V FOR BRIDGED-MODE OPERATION Output Offset Voltage V O(OFF) VIN=0V 5 50 mV RL=3Ω 2.5 THD=1%, f=1kHz RL=4Ω 2.2 RL=3Ω 3.2 HTSSOP-20 THD+N=10%, f=1kHz RL=4Ω 2.7 W THD=1%, f=1kHz R L=8Ω 1.0 1.1 THD+N=10%, f=1kHz R L=8Ω 1.5 W Output Power (measured at the device terminals) SOP/DIP P OUT THD+N=1%, f=1kHz, RL=32Ω 0.34 W HTSSOP-20 R L=4Ω, POUT=2W 0.3 Total Harmonic Distortion + Noise SOP/DIP THD+N 20Hz≤f≤20kHz, AVD=2 RL=8Ω, POUT=1W 0.3 % Power Supply Rejection Ratio PSRR VDD=5V, VRIPPLE=200mVRMS, RL=8Ω, CB=1.0μF 67 dB Channel Separation X TALK f=1kHz, C B=1.0μF 90 dB Signal To Noise Ratio SNR V DD=5V, POUT=1.1W, RL=8Ω 98 dB FOR SINGLE-ENDED OPERATION Output Offset Voltage V O(OFF) VIN=0V 5 50 mV THD=0.5%, f=1kHz, RL=32Ω 75 85 THD+N=1%, f=1kHz, RL=8Ω 340 Output Power P OUT THD+N=10%, f=1kHz, RL=8Ω 440 mW Total Harmonic Distortion + Noise THD+N AV=-1, POUT=75mW,20Hz≤f≤20kHz, RL=32Ω 0.2 % Power Supply Rejection Ratio PSRR C B=1.0μF, VRIPPLE=200mVRMS, f=1kHz 52 dB Channel Separation X TALK f=1kHz, C B=1.0μF 60 dB Signal To Noise Ratio SNR V DD=5V, POUT=340mW, RL=8Ω 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 Ω or 4 Ω and operating on a 5V supply, the HT SSOP-20 package must be mounted to the circuit board that has a minimum of 2.5 in 2 of exposed, uninterrupted c opper area connected to the exposed-DAP.
UNISONIC TECHNOLOGIES CO., LTD 4 of 10 www.unisonic.com.tw Q W - R 1 0 7 - 0 5 0 , A TYPICAL APPLICATION CIRCUIT SLEEVE AMP 1A VDD CS 0.1µF TANTRF 20KΩ RI 20KΩ Audio Input CI 1μF 20KΩ 20KΩ 20KΩ -OUT A 5 +OUT A RL CO 100µF 1kΩ To HP-IN Circuit 50KΩ 50KΩ VDD/2 -I N A +IN A Bypass -IN B +IN B Shutdown1 GND 2,7,15 100KΩ 20KΩ RF 20KΩ CI 1μFAudio Input 100kΩ VDD To Control Pin on Headphone jack 20KΩ 20KΩ 20KΩ -OUT B +OUT B RL 1kΩ CONTROL PIN HEADPHONE JACK TIP 4,13 AMP 1B- AMP 2A- AMP 2B- HP-IN RING CB (CB size) 0.33μF RI CO 100µF 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 Functional Description RI The inverting input resistance, along with RF, set the closed-loop gain. RI, along with CI form a high pass filter with fc=1/(2πRICI) CI The input coupling capacitor blocks DC volta ge at the amplifier’s input terminals. CI, along with RI, create a high pass filter with fc=1/(2 πRICI). Refer to the section. Selecting Proper External Components, for an explanation of determine the value of CI. RF The feedback resistance, along with R I, set the closed-Ioop gain. CS The supply bypass capacitor. Refer to the Power Supply Bypassing section for information about properly placing and selecting the value of, this capacitor. CB 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 C B’S value.
UNISONIC TECHNOLOGIES CO., LTD 5 of 10 www.unisonic.com.tw Q W - R 1 0 7 - 0 5 0 , A TYPICAL CHARACTERISTICS (For HTSSOP-20) THD+N (%) THD+N (%) THD+N vs Output Power THD+N (%) 10m 0.01 0.1 0.1 13 Level (W) THD+N vs Frequency THD+N (%) 0.01 0.1 100 1k 10k 20k 20Hz VDD=5V, RL=4Ω BW<80kHz 20KHz 1KHz VDD=5V, RL=4Ω POUT=2.0W, BW<80kHz Frequency (Hz) Power Dissipation (W)
UNISONIC TECHNOLOGIES CO., LTD 6 of 10 www.unisonic.com.tw Q W - R 1 0 7 - 0 5 0 , A TYPICAL CHARACTERISTICS(Cont.) (For DIP-16, SOP-16 and SOP-18) THD+N (%) THD+N(%) THD+N (%) THD+N (%) THD+N (%) THD+N (%)
UNISONIC TECHNOLOGIES CO., LTD 7 of 10 www.unisonic.com.tw Q W - R 1 0 7 - 0 5 0 , A TYPICAL CHARACTERISTICS(Cont.) THD+N vs Output Power THD+N (%) 10m 0.01 0.1 0.1 12 Level (W) THD+N vs Frequency THD+N (%) 0.01 0.1 100 1k 10k 20k VDD=-3.3V, AVD= -2 RL=4Ω f=20Hz f=1kHz VDD=3.3V, AVD=-2 POUT=750mW, RL=4Ω f=20kHz Frequency (Hz) THD+N (%) THD+N (%) 0 10 800 1000 600 Output Power vs Load Resistance 400 Load Resistance (Ω) 200 0 250 600 800 400 500 Power Dissipation vs Supply Voltage 200 750 1000 Power Out (mW) THD+N=10% VDD=3.3V, AV= -1 f=1kHz, BW<80kHz THD+N=1% VDD=3.3V Single-ended 16Ω
UNISONIC TECHNOLOGIES CO., LTD 8 of 10 www.unisonic.com.tw Q W - R 1 0 7 - 0 5 0 , A TYPICAL CHARACTERISTICS(Cont.) Output Power (W) Output Power (W) Output Power (W) Output Power (W) 0 10 Output Power vs Load resistance 0.8 0.6 0.4 0.2 VDD=5V f=1kHz A V=-1 Single Ended BW<80kHz1% THD+N 10% THD+N 20 30 50 60 Load Resistance (Ω) 2 2.5 0.7 0.75 Output Power vs Supply Voltage 1.25 Output Power (W) 0.6 0.5 0.4 0.3 0.2 RL=16Ω 0.5 1 VDD=5V f=1kHz THD+N∞1.0% Bridged Load BW<80kHz RL=32Ω RL=8Ω 0.1
UNISONIC TECHNOLOGIES CO., LTD 9 of 10 www.unisonic.com.tw Q W - R 1 0 7 - 0 5 0 , A TYPICAL CHARACTERISTICS(Cont.) Power Dissipation (W) Output Noise Voltage (μv) Output Level (dB) Output Level (dB) PSRR (dB) GAIN (dB) Phase ( ) o
UNISONIC TECHNOLOGIES CO., LTD 10 of 10 www.unisonic.com.tw Q W - R 1 0 7 - 0 5 0 , A TYPICAL CHARACTERISTICS(Cont.) 2 2.5 Supply Current vs Supply Voltage 5.5 Supply Voltage (V) Supply Current (mA) VIN=0V No Load BRIDGED (HP-IN=GND) SINGLE-ENDED (HP-IN=VDD) 3 3.5 4.5 50 Dropout Voltage ( V ) 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.