UNISONIC TECHNOLOGIES CO., LTD PA4819 CMOS IC 350mW AUDIO POWER AMPLIFIER WITH SHUTDOWN MODE DESCRIPTION As a mono bridged power amplifier which is operating on a single 5V supply, the UTC PA4819 is capable of delivering 350mWRMS of output power per channel into 16Ω loads with less than 10% THD+N and also delivering 300mWRMS of output power per channel into 8Ω loads with less than 10% THD+N. The UTC PA4819 is optimally suited for low-power portable applications because of the it do not require output coupling capacitors, bootstrap capacitors or snubber networks. By using external gain-setting resistors, the closed loop response of the unity-gain stable PA4819 can be configured. Lead-free: PA4819L Halogen-free: PA4819G FEATURES * Output power at 10% THD+N Supply voltage:5V Delivering 350mWRMS into a 16Ω load Delivering 300mWRMS into a 8Ω load * With shutdown mode * Stable unity-gain. ORDERING INFORMATION Normal PA4819-S08-R PA4819-S08-T Ordering Number Lead Free PA4819L-S08-R PA4819L-S08-T www.unisonic.com.tw Copyright © 2008 Unisonic Technologies Co., Ltd Halogen Free PA4819G-S08-R PA4819G-S08-T Package Packing SOP-8 SOP-8 Tape Reel Tube 1 of 7 QW-R502-241.A PA4819 CMOS IC PIN CONFIGURATION PIN DESCRIPTION PIN NO. 1 2 3 4 5 6 7 8 PIN NAME SHUTDOWN BYPASS +IN -IN VOOT1 VDD GND VOOT2 I/O I I I O O PIN DESCRIPTION Shutdown control input pin. Connected to a bypass capacitor. + pin of input signal. - pin of input signal. Output pin1 Supply voltage GND Output pin2 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 7 QW-R502-241.A PA4819 CMOS IC ABSOLUTE MAXIMUM RATING PARAMETER SYMBOL RATINGS UNIT Supply Voltage VCC 6 V Input Voltage VIN -0.3~VDD+0.3 V Power Dissipation PD Internally Limited W Junction Temperature TJ 150 °С Operating Temperature TOPR -40~+85 °С Storage Temperature TSTG -65~+150 °С 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. THERMAL DATA PARAMETER Junction to Ambient Junction to Case SYMBOL θJA θJC MIN TYP MAX 170 35 UNIT ℃/W ℃/W ELECTRICAL CHARACTERISTICS (TA=25°C, RL=16Ω, unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS FOR VDD=3V Supply Voltage VDD Shutdown voltage Input VSDIH High-Level Shutdown voltage Input Low-Level VSDIL DC Differential Output Voltage VOUT(DIFF) VIN=0V Mute Mode VIN=0V, IOUT=0A Supply Current IDD Shutdown Mode VPIN1=VDD THD=10%, fIN=1kHz, RL=16Ω, Output Power POUT THD=10%, fIN=1kHz, RL=8Ω, POUT=80mWRMS, Total Harmonic Distortion+Noise THD+N fIN=1kHz, G=2V/V FOR VDD=5V Supply Voltage VDD Shutdown voltage Input VSDIH High-Level Shutdown voltage Input Low-Level VSDIL DC Differential Output Voltage VOUT(DIFF) VIN=0V Mute Mode VIN=0V,IOUT=0A Supply Current IDD Shutdown Mode VPIN1=VDD THD=10%, fIN=1kHz, RL=16Ω, Output Power POUT THD=10%, fIN=1kHz, RL=8Ω, POUT=270mWRMS, Total Harmonic Distortion+Noise THD+N fIN=1kHz, G=2V/V UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN TYP MAX UNIT 2.0 5 5.5 V 2.4 V 5 1.0 0.7 110 90 0.6 50 3.0 5 mW 1 2.0 5 V mV mA µA % 5.5 4 V V 5 1.5 1 350 300 1 1 50 3.0 5 V mV mA µA mW % 3 of 7 QW-R502-241.A PA4819 CMOS IC BLOCK DIAGRAM UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 7 QW-R502-241.A PA4819 CMOS IC TYPICAL APPLICATION CIRCUIT RL 8Ω VDD VOUT1 RF 20kΩ 20kΩ -IN RIN 20kΩ 20kΩ +IN VDD/2 AV=-1 VOUT2 CI 0.39µF BIAS Audio Input BYPASS SHUTDOWN CB 1.0µF SHUTDOWN CONTROL UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw GND VIH VIL 5 of 7 QW-R502-241.A PA4819 CMOS IC TYPICAL CHARACTERISTICS Output Waveform Output Waveform 8 8 VDD=5V, RL=16Ω f=1KHz, THD=10% 6 4 4 2 2 Vp-p= 6.72 0 VDD=5V, RL=8Ω f=1KHz, THD=10% 6 -2 -2 -4 -4 -6 -6 -8 Vp-p=4.60 0 -8 0 400 800 1200 1600 2000 Time (µs) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 0 400 800 1200 1600 2000 Time (µs) 6 of 7 QW-R502-241.A PA4819 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. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 7 of 7 QW-R502-241.A