APA4863KI-TU

APA4863 Stereo 2.2W Audio Power Amplifier Features • • • • Depop Circuitry Integrated Thermal Shutdown Circuitry Integrated Bridge-Tied Load (BTL) or Single-Ended (SE) Modes Operation Output Power at 1% THD+N, VDD=5V - 2.2W/Ch (typ) into a 3 Ω Load - 1.8W/Ch (typ) into a 4 Ω Load - 1.2 W/Ch (typ) into a 8 Ω Load General Description The APA4863 is a stereo bridge-tied audio power amplifier in various power packages , including SOP , TSSOP and TSSOP-P . When connecting to a 5V voltage supply , the APA4863 is capable of delivering 2.2W/1.8W/1.2W of continuous RMS power per channel into 3Ω/4Ω/8Ω bridge-tied loads with less than 1% THD+N respectively . When APA4863 operates in the single-ended load , it is capable of delivering 90mW of continuous RMS power per channel into 32Ω load . The APA4863 simplifies design and frees up board space for other features . The APA4863 also served well in low-voltage applications , which provides 750mW (1% THD+N) per channel into 4Ω loads with a 3.3V supply voltage . Both of the depop circuitry and the thermal shutdown protection circuitry are integrated in the APA4863 , that reduces pops and clicks noise during power up and when using the shutdown mode and protects the chip from being destroyed by over-temperature failure . To simplify the audio system design in notebook computer applications , the APA4863 combines a stereo bridge-tied loads mode for speaker drive and a stereo single-end mode for headphone drive into a single chip , where both modes are easily switched by the HP-IN input control pin signal . For power sensitive applications , the APA4863 also features a shutdown function which keeps the supply current only 0.5 µA (typ.) . • • • Shutdown Control Mode, ISD= 0.5 µA Output Power (SE) at 0.5% THD+N, VDD=5V - 90mW/Ch (typ.) into a 32Ω Load Various Power Packages Available SOP, TSSOP, TSSOP-P Applications • • • Stereo Audio Power Amplifier for Notebook Computer Portable Televisions Portable and Desktop Computers Ordering Information APA4863 Handling Code Temp. Range Package Code Package Code K: SOP O: TSSOP Temp. Range I : -40 to 85 ° C Handling Code TU : Tube TR : Tape & Reel R: TSSOP-P* TY: Tray * TSSOP-P is a standard TSSOP package with a thermal pad exposed on the bottom of the package. 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.3 - Apr., 2001 1 www.anpec.com.tw APA4863 Block Diagram VDD CS 0.1µF 4, 13 6 8 - IN A + IN A* CO 5 Audio Input RF C1 1 µF CB 2.2µF Audio Input VDD / 2 50KΩ - IN B + IN B* R1 C1 1 µF VDD 20KΩ RF 20KΩ Shutdown HP-IN 2,7,15 To Control Pin on Headphone Jack 16 100KΩ GND * +INA and +INB pins are connected to Bypass pin inside the IC. Absolute Maximum Ratings (Over operating free-air temperature range unless otherwise noted.) Symbol VDD TA TJ TSTG TS VESD Parameter Supply Voltage Operating Ambient Temperature Range Maximum Junction Temperature Storage Temperature Range Soldering Temperature,10 seconds Electrostatic Discharge Rating 6 -40 to 85 150 -65 to +150 260 -2000 to 2000 *1 Note: *1. Human body model : C=100pF, R=1500Ω, 3 positive pulses plus 3 negative pulses Copyright  ANPEC Electronics Corp. Rev. A.3 - Apr., 2001 2 + 100ΚΩ 1 - + 9 - 11 20KΩ + - 10 Bypass 50ΚΩ + OUT A 3 + 20KΩ 20KΩ - R1 20KΩ - OUT A 20KΩ 20KΩ + RL 8Ω 100µF 1KΩ Control Pin Ring To HP-IN Circuit Sleeve Tip CO Headphone Jack - OUT B 20KΩ 20KΩ + OUT B 12 + 100µF RL 8Ω 1KΩ 14 Unit V °C °C °C °C V www.anpec.com.tw APA4863 Recommended Operating Conditions Min. Supply Voltage, VDD Operating free-air VDD=5V, temperature, TA 250mW/Ch average power VDD=5V, 1.8 W/Ch average power Common mode VDD=5 V input voltage, VICM VDD=3.3V 4-Ω s tereo BTL drive, with proper PCB design 4-Ω s tereo BTL drive, with proper PCB design and 300 CFM forced-air cooling 3 -20 Typ. 5 Max. 5.5 85 Unit V °C -20 85 1.25 1.25 4.5 2.7 V Dissipation Rating Table Package SO16 + TSSOP ++ TSSOP-P ++ Air Flow (CFM) 0 0 200 0 200 Thermal Resistance θ JA(° C/W) 50 73.2 66.6 37.6 32.3 T A≤ 25° C 2.5W 1.7W 1.8W 3.3W 3.8W T A=70° C 1.6W 1.1W 1.2W 2.1W 2.4W + : The parameter is measured with the recommended copper heat sink pattern on an 2-layer PCB, 11.7 in2 3.0×2.4 in2 in PCB, 1oz. copper, 3.0×1.5 in2 in coverage at Top-layer and Bottom-layer at 100% coverage (7.2in2). ++:The parameter is measured with the JEDEC standard test boards (multi-layer PCB). Electical Characteristics Electrical Characteristics for Entire IC The following specifications apply for VDD= 5V unless otherwise noted. Limits apply for TA= 25°C Symbol VDD IDD ISD VIH VIL Parameter Supply Voltage Quiescent Power Supply Current Shutdown Current Headphone High Input Voltage Headphone Low Input Voltage Test Conditions APA4863 Min. 3 Typ. 9 5 0.5 Max. 5.5 13.5 7.5 Unit V mA µA V V IN=0V, IO=0A, HP-IN=0V V IN=0V, IO=0A, HP-IN=4V V PIN1= VDD 5 4 0.8 V Copyright  ANPEC Electronics Corp. Rev. A.3 - Apr., 2001 3 www.anpec.com.tw APA4863 Electical Characteristics Cont. Electrical Characteristics for BTL Mode Operation The following specifications apply for VDD= 5V unless otherwise noted. Limits apply for TA= 25°C Symbol V OS PO Parameter Output Offset Voltage Output Power Test Conditions V IN=0V THD=1%, f=1kHz R L=3 Ω R L=4 Ω R L=8 Ω APA4863 Typ. 5 2.2 1.8 1.2 Unit mV W THD+N RSRR X TALK SNR THD=10%, f=1kHz R L=3 Ω R L=4 Ω R L=8 Ω Total Harmonic Distortion + Noise A VD =2, f=1kHz R L=4 Ω , P O =1.8W R L=8 Ω , P O = 1W Power Supply Rejection Ratio V DD =5V, V RIPPLE=200Mv Rms , R L=8 Ω C B=2.2 µ F Channel Separation f=1kHz , C B =2.2 µ F, P O =1W, R L=8 Ω Signal-to-Noise Ratio V DD =5V, P O = 1.1W, R L=8 Ω 2.7 2.3 1.5 0.3 0.15 64 90 95 % dB dB dB Electrical Characteristics for SE Mode Operation The following specifications apply for VDD= 5V unless otherwise noted. Limits apply for TA= 25°C Symbol V OS PO Parameter Output Offset Voltage Output Power Test Conditions V IN=0V THD=0.5%, f=1kHz, RL=32Ω THD=1%, f=1kHz, RL=8Ω THD=10%, f=1kHz, RL=8Ω THD+N Total Harmonic Distortion A V= -1 , P O=75mW, f=1kHz, RL=32Ω plus Noise RSRR Power Supply Rejection V RIPPLE=200mV RMS , f=1kHz, CB=2.2µF, RL=8Ω Ratio X TALK Channel Separation f=1kHz , CB=2.2µF, P O=32mW, RL=32Ω SNR Signal-to-Noise Ratio V DD=5V , PO =340mW, RL=8Ω APA4863 Typ. 5 90 320 400 0.02 49 85 95 Unit mV mW % dB dB dB Truth Table for Logic Inputs Shutdown Low Low High High HP-IN Low High Low High APA4863 Mode Bridge -Tied Single-Ended APA4863 Shutdown APA4863 Shutdown Copyright  ANPEC Electronics Corp. Rev. A.3 - Apr., 2001 4 www.anpec.com.tw APA4863 Pin Description 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 HP-IN GND + OUT B VDD - OUT B - IN B BYPASS + IN B SHUTDOWN GND + OUT A VDD - OUT A - IN A GND + IN A NC NC 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 HP-IN GND + OUT B VDD - OUT B - IN B BYPASS + IN B NC NC SHUTDOWN GND + OUT A VDD - OUT A - IN A GND + IN A Top View for SOP Top View for TSSOP SHUTDOWN GND + OUT A VDD - OUT A - IN A GND + IN A GND GND 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 HP-IN GND + OUT B VDD - OUT B - IN B BYPASS + IN B GND GND Thermal Pad Top View for TSSOP-P Bottom View for TSSOP -P Pin Description Name GND V DD + INA - INA + OUT A - OUT A + IN B - IN B + OUT B - OUT B BYPASS HP-IN SHUTDOWN I/O I I I O O I I O O I I Description Ground connection of circuitry Supply voltage input Non-inverting input of channel A, connected to bypass pin inside the IC Input pin of channel A A channel + output in BTL mode, high impedance in SE mode A channel - output in BTL mode, + output in SE mode Non-inverting input of channel B, connected to bypass pin inside the IC Input pin of channel B B channel + output in BTL mode, high impedance in SE mode B channel - output in BTL mode, + output in SE mode Connect to voltage divider for internal mid-supply bias Headphone control pin input, hold high for single-ended mode operation Shutdown mode control pin input, places entire IC in shutdown mode when held high, IDD= 0.5µA Copyright  ANPEC Electronics Corp. Rev. A.3 - Apr., 2001 5 www.anpec.com.tw APA4863 Typical Characteristics 10 THD+N vs Output Power THD+N vs Frequency 10 VDD=5V, PO=1.8W RL=4Ω, BW