APA4801

APA4801 Stereo 280mW 8Ω Speaker Driver with Mute Features • Operating Voltage Single Supply Dual Supply 3V to 7V ±1.5V to ± 3.5V 100dB 5V/ µs -65dB into 8 Ω into 16Ω 2 80mW 160mW Applications • • • Portable Digital Audio Personal Computers Microphone Preamplifier • • • • High Signal-to-Noise Ratio High Slew Rate Low Distortion Output Power at 10% THD+N General Description The APA4801 is an integrated class AB stereo headphone amplifier contained in an SO-8 or a DIP-8 plastic package with Mute feature . Besides the common Mute feature , the APA4801 further integrates a voltage divider inside the chip . Thus , the external resistors can be eliminated . The device has been primarily developed for portable digital audio applications . • • • • • • • • • Large Output Voltage Swing Excellent Power Supply Ripple Rejection Flexible Mute Function Integrated Voltage Divider (VDD/2) to Eliminate External Resistors Low Power Consumption Short-circuit Elimination Wide Temperature Range No Switch ON/OFF Clicks Available in 8 pin SOP or DIP Package Block Diagram MUTE Out A Mute Input A VSS 1 0dB A + 130k Ω 130k Ω 3 BIAS 0dB B + 8 VDD Out B BIAS Input B 2 7 6 4 5 Ordering Information APA4801 Handling Code Temp. Range Package Code Package Code J : PDIP-8 Temp. Range I : - 40 to 85 °C Handling Code TU : Tube TR : Tape & Reel K : SOP-8 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.5 - Apr., 2001 1 www.anpec.com.tw  APA4801 Function Pin Description Pin Name Out A Mute Input A VSS Input B BIAS OUT B VDD I I O I/O O I I Function Description A channel output pin Chip disable control input, high active and low for normal operating A channel input terminal Power ground pin B channel input terminal Right channel bias input pin B channel output pin Power input pin 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 8 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 R THJA Parameter Thermal Resistance from Junction to Ambient in Free Air DIP-8 SO-8 Value 109 210 Unit K/W K/W Electrical Characteristics V Symbol Parameter IN =0dBV, VDD=5V, TA=25°C, f=1kHz (unless otherwise noted) Test Conditions VDD Power Supply Voltage VDD=5V IDD Supply Current VI(OS) Input Offset Voltage Copyright  ANPEC Electronics Corp. Rev. A.5 - Apr., 2001 APA4801 Min. Typ. Max. 2.7 5.5 2.5 5 Unit V mA mV No Load 50 2 www.anpec.com.tw APA4801 Electrical Characteristics Cont. Sym bol Param eter Test Conditions M in. I SD Shunt Current M utel M ute Input Voltage A V1 - A V2 Differential C hannel Voltage G ain ATT M ute Attenuation fIN =1k, V IN = 1 Vrm s AC Characteristics (THD+N Total Harm onic P O = 160m W, R L =8 Ω , f=1kHz )/S Distortion plus N oise to P O = 100m W, R L =16 Ω , f=1kHz Signal Ratio PO O utput Power (THD+N)/S=0.1% , f=1kHz, BW