APA3544

APA3541/4 Class AB Stereo Headphone Driver with Mute Features • • • • • • • • • • • High Signal-to-Noise Ratio High Slew Rate Low Distortion Large Output Voltage Swing Flexible Mute Function Excellent Power Supply Ripple Rejection Low Power Consumption Short-circuit Elimination Wide Temperature Range No Switch ON/OFF Clicks Integrated Voltage Divider (VDD/2) to Eliminate External Resistors Applications • Portable Digital Audio General Description The APA3541/4 is an integrated class AB stereo headphone driver contained in an SO-8 or a DIP-8 plastic package with Mute feature . Besides the common Mute feature , the APA3541/4 further integrates a voltage divider inside the chip . Thus , the external resistors can be eliminated . The APA3541 has a fixed gain of 0dB and the APA3544 has a fixed gain of 6dB so that external gain setting is unnecessary. The device is fabricated in a CMOS process and has been primarily developed for portable digital audio applications . Ordering and Marking Information A P A 3 5 4 1 /4 H a nd lin g C o d e T em p. R ange P a ck a g e C o d e P ackage C ode J : P D IP - 8 Y : C h ip F ro m T em p. R ange I : - 4 0 to 8 5 ° C H a n d lin g C o d e TU : Tube K : SOP - 8 TR : Tape & Reel A P A 3 5 4 1 /4 J : A P A 3 5 4 1 /4 XXXXX X X X X X - D a te C o d e A P A 3 5 4 1 /4 K : A P A 3 5 4 1 /4 XXXXX X X X X X - D a te C o d e 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. B.1 - Apr., 2003 1 www.anpec.com.tw APA3541/4 Block Diagram M UTE O ut A 1 0dB (6dB ) 0dB (6dB ) 8 V DD M ute 2 A + B + 7 O ut B Input A 3 180k Ω ( 90k Ω ) 180k Ω ( 90k Ω ) B IAS 6 BIAS V SS 4 5 Input B * The values in parenthessis are for the APA3544. Function Pin Description Pin Name Out A Mute Input A VSS Input B BIAS OUT B VDD I/O O I I I I O Function Description A channel output pin Chip disable control input, low active and high 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 7 20 -40 to 85 150 -65 to +150 300 -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 Copyright  ANPEC Electronics Corp. Rev. B.1 -Apr., 2003 2 www.anpec.com.tw APA3541/4 Thermal Characteristics Symbol RTHJA Parameter Thermal Resistance from Junction to Ambient in Free Air DIP-8 SOP-8 Thermal Resistance from Junction to Case DIP-8 SOP-8 Rating 108 210 45 40 Unit K/W RTHJC K/W Electrical Characteristics VIN=0dBV, VCC=5V, TA=25°C, f=1kHz, RL=32Ω (unless otherwise noted) APM3541/4 Symbol VDD IQ Imute VTM ∆GVCL Parameter Supply Voltage Quiescent Current Mute Current Mute Terminal Voltage Differential Channel Voltage Gain Vin=1Vrms,f= 1kHz,RL=32Ω GVCL Voltage Gain Vin=0.5Vrms, f=1kHz,Rl=32Ω APA3544 THD Total Harmonic Channel Distortion Factor PU1 Rated Output Power1 BW 100mA Carrier Tape & Reel Dimensions t E Po P P1 D F W Bo Ao D1 Ko T2 J C A B T1 A pp lication A 330 ± 1 B 62 +1.5 D C 12.75+ 0.15 D1 J 2 ± 0.5 Po 4.0 ± 0 .1 T1 12.4 ± 0 .2 P1 2.0 ± 0 .1 T2 2 ± 0.2 Ao 6.4 ± 0 .1 W 12 ± 0 . 3 Bo 5.2 ± 0. 1 P 8 ± 0 .1 Ko 2.1 ± 0.1 E 1.75 ± 0.1 t 0.3 ± 0.013 SOP- 8 F 5.5 ± 1 1.55 +0.1 1.55+ 0.25 Copyright  ANPEC Electronics Corp. Rev. B.1 -Apr., 2003 12 www.anpec.com.tw APA3541/4 Cover Tape Dimensions Application SOP- 8 Carrier Width 12 Cover Tape Width 9.3 Devices Per Reel 2500 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. B.1 -Apr., 2003 13 www.anpec.com.tw