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| PT2308 Headphone Driver IC DESCRIPTION PT2308 is a Class AB stereo headphone driver chip utilizing CMOS Technology specially designed for portable digital audio applications. It is housed in an 8-pin DIP or SOP package and is functionally compatible with TDA1308. Pin assignments and application circuit are optimized for lower cost effectiveness and easy PCB Layout. FEATURES * * * * * * * CMOS technology Low power consumption Wide temperature range Excellent power supply ripple rejection High signal-to-noise ratio, S/N=110dB Low harmonic distortion, THD=0.001% Large output voltage swing APPLICATIONS * * * * Portable digital audio Hi-fi audio system Walkman CD-ROM BLOCK DIAGRAM APPLICATION CIRCUIT Tel: 886-66296288Fax: 886-29174598 http://www.princeton.com.tw2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan PT2308 ORDER INFORMATION Valid Part Number PT2308 PT2308-S Package Type 8 Pins, DIP, 300mil 8 Pins, SOP, 150mil Top Code PT2308 PT2308-S PIN CONFIGURATION PIN DESCRIPTION Symbol OUT1 IN1IN1+ VSS IN2+ IN2OUT2 VDD I/O O I I I I O Description Output pin 1 Inverting input pin 1 Non-inverting input pin 1 Negative power supply Non-inverting input pin 2 Inverting input pin 2 Output pin 2 Positive power supply Pin No. 1 2 3 4 5 6 7 8 V1.4 2 PT2308 ABSOLUTE MAXIMUM RATINGS Parameter Supply voltage Operating temperature Storage temperature Symbol VDD Topr Tstg Ratings 8 -40+85 -65+150 Unit V ELECTRICAL CHARACTERISTICS (Unless otherwise stated, VDD=5V, VSS=0V, Ta=25, fin=1KHz, RL=32) Parameter Symbol Conditions Min. Signal supply voltage Dual supply voltage Negative power voltage Supply current Total power dissipation Maximum output power Total harmonic distortion Signal-to-noise ratio Channel separation Power supply ripple rejection Maximum input voltage Output resistance VDD VSS IDD Ptot Po THD S/N No Load No Load Vo(p-p)=3.5V Vo(p-p)=3.5V RL=5K RL=5K fin=100Hz; Vripple(p-p)=100mV THD<0.1% 3.0 1.5 -1.5 100 Typ. 5.0 2.5 -2.5 7.0 35 60 0.03 0.001 110 70 105 90 1.4 2 Max. 7.0 3.5 -3.5 0.06 % dB dB dB V Unit V V mA mW mW cs PSRR VImax ROUT V1.4 3 PT2308 PACKAGE INFORMATION 8 PINS, DIP, 300MIL Symbol A A1 A2 b c D E E1 e L Notes: 1. Refer to JEDEC MS-001, Variation BA 2. All dimensions are in millimeter Min. 0.50 3.10 0.38 0.21 9.10 7.62 6.25 2.92 Millimeter Nom. 3.30 9.20 7.87 6.35 2.54BSC 3.30 Max. 4.80 3.50 0.55 0.35 9.30 8.25 6.45 3.81 V1.4 4 PT2308 8 PINS, SOP, 150MIL Symbol A A1 A2 b c D E E1 e L Min. 1.35 0.10 1.25 0.31 0.17 4.80 5.80 3.80 0.40 0 Millimeter Nom. 1.27BSC - Max. 1.75 0.25 1.65 0.51 0.25 5.00 6.20 4.00 1.27 8 Notes: 1. Refer to JEDEC MS-012AA 2. All dimensions are in millimeter V1.4 5 PT2308 IMPORTANT NOTICE Princeton Technology Corporation (PTC) reserves the right to make corrections, modifications, enhancements, improvements, and other changes to its products and to discontinue any product without notice at any time. PTC cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a PTC product. No circuit patent licenses are implied. Princeton Technology Corp. 2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan Tel: 886-2-66296288 Fax: 886-2-29174598 http://www.princeton.com.tw V1.4 6 |
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