APA2068

APA2068 Stereo 2.6W Audio Power Amplifier (with DC_Volume Control) Features • • • • • • • • • • • • Low Operating Current with 9mA Improved Depop Circuitry to Eliminate Turn-on and Turn-off Transients in Outputs High PSRR 32 Steps Volume Adjustable by DC Voltage with Hysteresis 2.6W per Channel Output Power into 4Ω Load at 5V,BTL Mode Two Output Modes Allowable with BTL and SE Modes Selected by SE/BTL pin Low Current Consumption in Shutdown Mode (1µA) Short Circuit Protection T hermal shutdown protection and over current protection circuitry Maximum Output Swing Clamping Function SOP-16-P Packages with Thermal Pad Package Lead Free Available (RoHS Compliant) General Description APA2068 is a monolithic integrated circuit, which provides precise DC volume control, and a stereo bridged audio power amplifiers capable of producing 2.6W (1.8W) into 4Ω with less than 10% (1.0%)THD+N. The attenuator range of the volume control in APA2068 is from 20dB (DC_Vol=0V) to -80dB (DC_Vol=3.54V) with 32 steps. The advantage of internal gain setting can be less components and PCB area. Both of the depop circuitry and the thermal shutdown protection circuitry are integrated in APA2068, that reduce pops and clicks noise during power up or shutdown mode operation. It also improves the power off pop noise and protects the chip from being destroyed by over temperature and short current failure. To simplify the audio system design, APA2068 combines a stereo bridge-tied loads (BTL) mode for speaker drive and a stereo single-end (SE) mode for headphone drive into a single chip, where both modes are easily switched by the SE/BTL input control pin signal. Applications • • NoteBook PC LCD Monitor or TV Ordering and Marking Information APA2068 Lead Free Code Handling Code Temp. Range Package Code APA2068 KA : APA2068 XXXXX Package Code KA : SOP-16-P Operating Ambient Temp. Range I : - 40 to 85 °C Handling Code TU : Tube TR : Tape & Reel Lead Free Code L : Lead Free Device Blank : Original Device XXXXX - Date Code Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which are fully compliant with RoHS and compatible with both SnPb and lead-free soldiering operations. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J STD-020C for MSL classification at lead-free peak reflow temperature. 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 - Jul., 2005 1 www.anpec.com.tw APA2068 Block Diagram VOLMAX LOUT+ LINVolum e Control RINBYPASS B Y PA S S ROUT+ VOLUME LOUT- SE/BTL SE/BTL Shutdown ckt Mute APA2068_Block ROUTVDD Power and Depop circuit SHUTDOWN MUTE GND Absolute Maximum Ratings (Over operating free-air temperature range unless otherwise noted.) Symbol VDD VIN TA TJ TSTG TS VESD PD Notes: 1.APA2068 integrated internal thermal shutdown protection when junction temperature ramp up to 150°C 2.Human body model: C=100pF, R=1500Ω, 3 positives pulse plus 3 negative pulses 3.Machine model: C=200pF, L=0.5µ F, 3 positive pulses plus 3 negative pulses Parameter Supply Voltage Range Input Voltage Range, SE/BTL, SHUTDOWN, Mute Operating Ambient Temperature Range Maximum Junction Temperature Storage Temperature Range Soldering Temperature,10 seconds Electrostatic Discharge Power Dissipation Rating -0.3 to 6 -0.3 to VDD+0.3 -40 to 85 1 Intermal Limited* -65 to +150 260 -3000 to 3000*2 -200 to 200*3 Intermal Limited Unit V V °C °C °C °C V Recommended Operating Conditions Min. Supply Voltage, VDD High level threshold voltage, VIH Low level threshold voltage, VIL Common mode input voltage, VICM Copyright © ANPEC Electronics Corp. Rev. A.2 - Jul., 2005 2 Max. 5.5 Unit V V SHUTDOWN, Mute SE/BTL SHUTDOWN, Mute SE/BTL 4.5 2 4 1.0 3 VDD-1.0 V V www.anpec.com.tw APA2068 Thermal Characteristics S ymbol R THJA Parameter T hermal Resistance from Junction to Ambient in Free Air S OP-16-P 45 ° C/W Value Unit Electrical Characteristics VDD=5V, -20°C