APA2020ARI-TY

APA2020A Stereo 2-W Audio Power Amplifier Features • • • • • • • • • Low Supply Current , IDD= 8mA at Stereo BTL Low Shutdown Current , IDD= 0.5µA Depop Circuitry Integrated Low Supply Voltage Thermal Shutdown Circuitry Integrated Output Power at 1% THD+N , VDD=5V - 1.8 W/Ch (typ) into a 4 Ω Load - 1.2 W/Ch (typ) into a 8 Ω Load Bridge-Tied Load (BTL) or Single-Ended (SE) Modes Operation Various 24-Pin Power Packages Available SOP , TSSOP-P High Supply Voltage Ripple Rejection General Description The APA2020A is a stereo bridge-tied audio power amplifier in various 24-pin power packages , including SOP , TSSOP-P. When connecting to a 5V voltage supply , the APA2020A is capable of delivering 1.8W/1.2W of continuous RMS power per channel into 4 Ω/ 8 Ω l oads with less than 1% THD+N , respectively. The APA2020A simplifies design and frees up board space for other features . The APA2020A also served well in low-voltage applications , which provides 800-mW 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 APA2020A , that reduces pops and clicks noise during power up and when using the shutdown or mute modes and protects the chip from being destroyed by over-temperature failure. To simplify the audio system design in notebook computer applications , the APA2020A 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 . For power sensitive applications , the APA2020A also features a shutdown function which keeps the supply current only 0.5 µA (typ) . Applications • Stereo Audio Power Amplifier for Notebook Computer Ordering Information APA2020A Handling Code Temp. Range Package Code Package Code K : SOP Temp. Range I: - 40 to 85 °C Handling Code TU : Tube TY : Tray TR : Tape & Reel R : TSSOP-P * * TSSOP-P is a standard TSSOP package with a thermal pad exposure 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.5 - July., 2002 1 www.anpec.com.tw APA2020A Block Diagram MUX MUX MUX SE/BTL Absolute Maximum Ratings (Over operating free-air temperature range unless otherwise noted.) Symbol V CC TA TJ TSTG TS V ESD Supply Voltage Operating Ambient Temperature Range Maximum Junction Temperature Storage Temperature Range Soldering Temperature,10 seconds Electrostatic Discharge Parameter Rating 6 -40 to 85 150 -65 to +150 300 -3000 to 3000 *1 -200 to 200 *2 Unit V °C °C °C °C V Note: 1. Human body model : C=100pF , R=1500Ω , 3 positive pulses plus 3 negative pulses 2. Machine model : C=200pF , L=0.5mH , R=0Ω , 3 positive pulses plus 3 negative pulses Copyright  ANPEC Electronics Corp. Rev. A.5 - July., 2002 2 www.anpec.com.tw APA2020A Recommended Operating Conditions Min. Supply Voltage, VDD VDD=5V, 4-Ω stereo BTL drive, Operating free-air 250mW/Ch average power, with proper PCB temperature, TA design VDD=5V, 2 W/Ch average power, 3-Ω stereo 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 VDD=5 V Common mode input voltage, VICM VDD=3.3V 1.25 1.25 4.5 2.7 V Electrical Characteristics (Cont.) AC Operating Characteristics , VDD= 5V , TA= 25°C , RL= 4Ω (unless otherwise noted) Symbol P(out) Parameter Output power (each channel ) see Note 1 Test Condition THD = 10% , BTL , RL=4Ω RL=8Ω THD = 1% , BTL , R L=4Ω RL=8Ω THD = 10% , SE , RL=4Ω RL=8Ω THD = 1% , SE , RL=4Ω R L=8Ω THD = 0.5% , SE , RL=32 Ω THD + N Total harmonic distortion plus PO = 1.6W , BTL , RL=4Ω noise PO = 1 W , BTL , R L=8Ω PO = 78mW , SE ,R L=32Ω V1 = 1V , RL=4Ω , G = 1 BOM Maximum output power bandwidth Phase margin G = 10 , THD < 1% RL = 4Ω , BTL RL = 4Ω , Open Load RL = 4Ω , S E APA2020A Min. Typ. Max. 2.3 1.5 1.8 1.2 650 400 500 320 90 300 150 20 10 >20 72 71 52 ° KHz m% mW W Unit Copyright  ANPEC Electronics Corp. Rev. A.5 - July., 2002 3 www.anpec.com.tw APA2020A Electrical Characteristics (Cont.) AC Operating Characteristics , VDD= 5V , TA= 25°C , RL= 4Ω (unless otherwise noted) Symbol PSRR Parameter Power supply ripple rejection Mute attenuation Channel-to-channel output separation Line HP input separation BTL attenuation in SE mode ZI Vn Input impedance Signal-to-noise ratio Output noise voltage Po = 500 mW , BTL Test Condition f =100 Hz APA2020A Min. Typ. Max. 80 85 85 75 80 2 90 80 Unit dB dB dB dB dB MΩ dB µV(rms) Notes 1 : Output power is meaured at the output teminals of the IC at 1 KHz. AC Operating Characteristics , VDD= 3.3V , TA= 25°C , RL= 4Ω (unless otherwise noted) APA2020A Symbol Parameter Test Condition Min. Typ . Max. P(out) Output power (each channel ) 1 THD = 10% , BTL , R L=4Ω see Note 2 0.6 RL=8Ω 0.8 THD = 1% , BTL , RL=4Ω RL=8Ω THD = 10% , SE , RL=4Ω RL=8Ω THD = 1% , SE , RL=4Ω RL=8Ω THD = 0.5% , SE , RL=32 Ω THD + N Total harmonic distortion plus PO = 1.6W , BTL , R L=4Ω noise PO = 1 W , BTL , R L=8Ω PO = 78mW , SE ,RL=32Ω V1 = 1V , R L=4Ω , G = 1 BOM Maximum output power bandwidth Phase margin G = 10 , THD < 1% RL = 4Ω , BTL RL = 4Ω , O pen Load RL = 4Ω , S E 0.5 290 180 230 140 43 270 150 20 10 >20 92 70 57 Unit W mW m% KHz ° Copyright  ANPEC Electronics Corp. Rev. A.5 - July., 2002 4 www.anpec.com.tw APA2020A Electrical Characteristics (Cont.) AC Operating Characteristics , VDD= 3.3V , TA= 25°C , RL= 4Ω (unless otherwise noted) Symbol PSRR Parameter Power supply ripple rejection Mute attenuation Channel-to-channel output separation Line HP input separation BTL attenuation in SE mode ZI Vn Input impedance Signal-to-noise ratio Output noise voltage Po = 500 mW , BTL f =1 KHz Test Condition f =100 Hz APA2020A Min. Typ. Max. 70 85 85 75 80 2 90 50 Unit dB dB dB dB dB MΩ dB µV(rms) Notes 2 : Output power is meaured at the output teminals of the IC at 1 KHz. DC Electrical Characteristic , TA=25 °C Symbol Parameter Test Conditions Stereo BTL Stereo SE V DD = 3.3 V Stereo BTL Stereo SE V DD = 5V, Gain = 2, see Note3 V DD = 5 V APA2020A Typ. Max. 8 11 4 6.5 7 9 3.5 5.6 5 25 8 0.5 11 5 Unit mA mA mA mA mV mA µA IDD Supply Current V O (DIFF) IDD (MUTE) ISD DC Differential Output Voltage Supply Current in Mute Mode V DD = 5V IDD in Shutdown V DD = 5 V Note 3 : at 3V 200V 10ms , Itr > 1 00mA t D P1 Carrier Tape & Reel Dimensions Po E P F W Bo Ao Ko D1 T2 J C A B T1 Application A 330±1 B 62 ±1.5 D C 12.75 ± 0.15 D1 J 2 ± 0.6 Po 4.0 ± 0.1 T1 24.4 ± 0.2 P1 T2 2± 0.2 Ao W 24 ± 0.3 Bo P E 12 ± 0.1 1.75± 0.1 Ko t SOP- 24 F 11.5 ± 0.1 1.55 +0.1 1.5+ 0.25 2.0 ± 0.1 10.9 ± 0.1 15.9± 0.1 3.1± 0.1 0.35±0.05 (mm) Copyright  ANPEC Electronics Corp. Rev. A.5 - July., 2002 24 www.anpec.com.tw APA2020A Cover Tape Dimensions Application SOP- 16 / 20 / 24 / 28 Carrier Width 24 Cover Tape Width 21.3 Devices Per Reel 1000 Customer Service Anpec Electronics Corp. Head Office : 5F, No. 2 Li-Hsin Road, SBIP, Hsin-Chu, Taiwan, R.O.C. Tel : 886-3-5642000 Fax : 886-3-5642050 Taipei Branch : 7F, No. 137, Lane 235, Pac Chiao Rd., Hsin Tien City, Taipei Hsien, Taiwan, R. O. C. Tel : 886-2-89191368 Fax : 886-2-89191369 Copyright  ANPEC Electronics Corp. Rev. A.5 - July., 2002 25 www.anpec.com.tw