APA2020K-TU

APA2020 Stereo 2-W Audio Power Amplifier Features • • • Depop Circuitry Integrated 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 Shutdown Control Mode , IDD= 0.5µA General Description The APA2020 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 APA2020 is capable of delivering 1.8W/ 1.2W of continuous RMS power per channel into 4Ω/ 8Ω loads with less than 1% THD+N , respectively. The APA2020 simplifies design and frees up board space for other features. The APA2020 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 APA2020 , 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 APA2020 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 APA2020 also features a shutdown function which keeps the supply current only 0.5 µA (typ). Applications • Stereo Audio Power Amplifier for Notebook Computer Ordering and Marking Information APA2020 L e a d F re e C o d e H a n d lin g C o d e Tem p. R ange P ackage C ode A P A 2020 XXXXX A P A 2020 XXXXX P ackage C ode K : SOP R : T S S O P -P * Tem p. R ange I : - 4 0 to 8 5 ° C H a n d lin g C o d e TU : Tube TR : Tape & R eel T Y : T ra y L e a d F re e C o d e L : L e a d F re e D e v ic e B la n k : O rig in a l D e v ic e X X X X X - D a te C o d e A P A 2020 K : A P A 2020 R : X X X X X - D a te C o d e * 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.8 - Nov., 2002 1 www.anpec.com.tw APA2020 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.8 - Nov., 2002 2 www.anpec.com.tw APA2020 Recommended Operating Conditions Min. Supply Voltage, VDD V DD=5V, 4-Ω s tereo BTL drive, Operating free-air 250mW/Ch average power, with proper PCB temperature, TA design V DD=5V, 2 W/Ch average power, 3-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 V DD=5 V Common mode input voltage, VICM V DD=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 , R L=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 , RL=4Ω noise PO = 1W , 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 Notes 1 : Output power is meaured at the output teminals of the IC at 1 KHz. Copyright  ANPEC Electronics Corp. Rev. A.8 - Nov., 2002 3 www.anpec.com.tw APA2020 Min. Typ. Max. 2.3 1.5 1.8 1.2 650 400 500 320 90 300 150 20 10 >20 72 71 52 Unit W mW m% KHz ° APA2020 Electrical Characteristics (Cont.) 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 AC Operating Characteristics , VDD= 5V , TA= 25°C , RL= 4Ω (unless otherwise noted) Test Condition f =100 Hz Min. APA2020 Typ. Max. 80 85 85 75 80 2 90 80 Unit dB dB dB dB dB MW dB ì V( rms) Notes 1 : Output power is meaured at the output teminals of the IC at 1 KHz. Electrical Characteristics (Cont.) AC Operating Characteristics , VDD= 3.3V , TA= 25°C , RL= 4Ω (unless otherwise noted) Symbol P(out) Parameter Output power (each channel ) see Note 2 Test Condition THD = 10% , BTL , RL=4Ω RL=8Ω 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 , RL=4Ω noise PO = 1W , BTL , RL=8Ω PO = 78mW , SE ,RL=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 = 4 Ω , S E Notes 2 : Output power is meaured at the output teminals of the IC at 1 KHz. Copyright  ANPEC Electronics Corp. Rev. A.8 - Nov., 2002 4 www.anpec.com.tw APA2020 Min. Typ. Max. 1 0.6 0.8 0.5 290 180 230 140 43 270 150 20 10 >20 92 70 57 Unit W mW m% KHz ° APA2020 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 Min. APA2020 Typ. Max. 70 85 85 75 80 2 90 50 Unit dB dB dB dB dB MW dB ì V( 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 APA2020 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, 1tr > 100mA Carrier Tape & Reel Dimensions t E Po P P1 D F W Bo Ao D1 T2 Ko 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 J 2 ±0.5 Po 4.0 ±0.1 T1 24.4 ± 0.2 P1 T2 2± 0.2 Ao W 24 ± 0.3 Bo P 12 ± 0.1 Ko E 1.75± 0.1 t SOP- 24 F 11.5 ± 0.1 1.55 +0.1 1.5+ 0.25 Application A 330 ±1 TSSOP- 24 F 7.5 ±0.1 B 100 ref D 1.5 +0.1 C 13 ±0.5 D1 1.5 min 2.0 ± 0.1 10.9 ± 0.1 15.9± 0.1 T1 16.4 ±0.2 P1 2.0 ±0.1 T2 2 ±0.2 Ao 6.9 ±0.1 W 16 ±0.3 Bo 8.3 ±0.1 3.1± 0.1 0.35±0.05 P 12 ±0.1 Ko 1.5 ±0.1 E 1.75±0.1 t 0.3±0.05 (mm) Copyright  ANPEC Electronics Corp. Rev. A.8 - Nov., 2002 24 www.anpec.com.tw APA2020 Cover Tape Dimensions Application SOP- 24 TSSOP- 24 Carrier Width 24 16 Cover Tape Width 21.3 21.3 Devices Per Reel 1000 2000 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.8 - Nov., 2002 25 www.anpec.com.tw