APA4800

APA4800 Stereo 290mW 8Ω Speaker Driver Features • O perating Voltage Single Supply Dual Supply High Signal-to-Noise Ratio Applications • • • Portable Digital Audio Personal Computers Microphone Preamplifier 3V to 7V ±1.5V to ± 3.5V 100dB • • • • • • • • • • • High Slew Rate 5V/ µs Low Distortion -65dB Output Power at 10% THD+N into 8Ω !!!!!!!!!!!!!! 290mW into 16Ω !!!!!!!!!!!!!! 190mW Large Output Voltage Swing Excellent Power Supply Ripple Rejection Low Power Consumption Short-circuit Elimination Wide Temperature Range No Switch ON/OFF Clicks Available in 8 pin SOP or DIP Package Gereral Description The APA4800 is an integrated class AB stereo headphone amplifier contained in an SO-8 or a DIP-8 plastic package . The APA4800 is capable of delivering 290mW of max . output power to an 8Ω load with less than 10% (THD+N) from a 5V power supply . The device has been primarily developed for portable digital audio applications . Ordering Information APA4800 Handling Code Temp. Range Package Code Package Code J : PDIP - 8 K : SOP - 8 Temp. Range I : - 40 to 85 °C Handling Code TU : Tube TR : Tape & Reel Block Diagram Out A Inverting Input A Non-inverting Input A VSS 1 8 VDD Out B Inverting Input B Non-inverting Input B 2 7 -+ +3 6 4 5 APA4800 ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders. Copyright  ANPEC Electronics Corp. Rev. A.2 - Apr., 2001 1 www.anpec.com.tw APA4800 Absolute Maximum Ratings Symbol VDD TSC (O) TA TJ TSTG TS VESD Parameter Supply Voltage Output Short-circuit Duration, at TA=25°C, PTOT=1W Operating Ambient Temperature range Maximum Junction Temperature Storage Temperature Range Soldering Temperature,10 seconds Electrostatic Discharge Rating 5 20 -40 to 85 150 -65 to +150 260 -3000 to 3000 *1 Unit V S °C °C °C °C V Note: *1. Human body model : C=100pF, R=1500Ω, 3 positive pulses plus 3 negative pulses Thermal Characteristics Symbol RTHJA Parameter Thermal Resistance from Junction to Ambient in Free Air DIP-8 SO-8 Value 109 210 Unit K/W K/W Electrical Characteristics Symbol Parameter TA=25°C, f=1kHz( unless otherwise noted) Test Conditions Min. 2.7 APA4800 Typ. Max. 5.5 2.5 5 0.1 0.05 Unit V mA mV % V DD Power Supply Voltage V DD=5V IDD Supply Current V I(OS) Input Offset Voltage AC Characteristics (THD+N)/S Total Harmonic Distortion plus Noise to Signal Ratio PO Output Power No Load 50 P O = 200mW, RL=8Ω, f=1kHz P O = 120mW, RL=16Ω , f=1kHz (THD+N)/S=0.2%, f=1kHz RL=8Ω RL=16Ω mW 210 140 mW 290 190 55 20 dB µVrms PO Output Power (THD+N)/S=10%, f=1kHz RL=8Ω RL=16Ω PSRR S/N Power Supply Rejection CB=2.2 µF,V RIPPLE=200mVrms, Ratio f=120Hz Signal to Noise Ratio RL=8Ω Copyright  ANPEC Electronics Corp. Rev. A.2 - Apr., 2001 2 www.anpec.com.tw APA4800 Electrical Characteristics Cont. Symbol Parameter TA=25°C, f=1kHz( unless otherwise noted) APA4800 Min. Typ. Max. 2.2 5 0.15 Unit Test Conditions V DD=3V IDD Supply Current V I(OS) Input Offset Voltage AC Characteristics (THD+N)/S Total Harmonic Distortion plus Noise to Signal Ratio PO Output Power No Load mA mV % P O = 50mW, RL=8Ω, f=1kHz P O = 40mW, RL=16Ω, f=1kHz (THD+N)/S=0.2%, f=1kHz RL=8Ω RL=16Ω mW 60 45 mW 90 65 PO Output Power (THD+N)/S=10%, f=1kHz RL=8Ω RL=16Ω Test And Application Circuits VDD 220pF 220µF 15kΩ 1 2.2 µF 2 15kΩ 3 8 RL VOUTA -+ VINA VREF typ.1/2VDD VINB 2.2µF 15kΩ 5 APA4800 100µF 6 -+ 7 4 15kΩ 220pF VOUTB 220µF RL Copyright  ANPEC Electronics Corp. Rev. A.2 - Apr., 2001 3 www.anpec.com.tw APA4800 Typical Characteristics THD+N vs Output Power 10 VDD = 5V RL=8Ω AV= -1 BW