PT2308L Headphone Driver IC DESCRIPTION PT2308L 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. APPLICATIONS • • • • 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 Low supply voltage available (VDD=2V) Portable digital audio Hi-Fi audio system Walkman CD-ROM BLOCK DIAGRAM APPLICATION CIRCUIT Note: VREF=1/2 VDD Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan PT2308L ORDER INFORMATION Valid Part Number PT2308L PT2308L-S Package Type 8 Pins, DIP, 300mil 8 Pins, SOP, 150mil Top Code PT2308L PT2308L-S PIN CONFIGURATION PIN DESCRIPTION Symbol OUT1 IN1IN1+ VSS IN2+ IN2OUT2 VDD V1.3 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 2 Pin No. 1 2 3 4 5 6 7 8 July, 2009 PT2308L ABSOLUTE MAXIMUM RATING Parameter Supply voltage Operating temperature Storage temperature Symbol VDD Topr Tstg Rating 8 -40 to +85 -65 to +150 Unit V ℃ ℃ ELECTRICAL CHARACTERISTICS (Unless otherwise specified, VDD=3V, VSS=0V, Ta=25℃, fin=1KHz, RL=32Ω) Parameter Symbol Conditions Single power supply VDD Dual power supply Single power supply Dual power supply Supply current Total power dissipation Max. output power (RL=32Ω) VSS IDD Ptot Po Total harmonic distortion THD Signal to noise ratio S/N Channel separation αcs Power supply ripple rejection Output impedance Slew rate V1.3 PSRR Ro SR No Load, VDD=3V No Load, VDD=3V VDD=1.8V THD=0.15% VDD=3V VDD=1.8V THD=3% VDD=3V Vo(p-p)=2V Vo(p-p)=2V, (RL=5KΩ) A-weighted RL=32Ω RL=5KΩ fin=100Hz Vripple(p-p)=100mV Gain=0dB Gain=0dB inverting 3 Min 2 +1. 0 0 -1.0 100 - Typ. 3 Max. 4 Unit +1.5 +2.0 0 -1.5 7 21 5.8 23 8.2 27 0.03 0.001 110 105 100 0 -2.0 0.06 - - 90 - dB - 1 3.5 - Ω V/µs V V mA mW mW % dB dB July, 2009 PT2308L PACKAGE INFORMATION 8 PINS, DIP, 300MIL Symbol A A1 A2 b c D E E1 e L Millimeter Nom. 3.30 9.20 7.87 6.35 2.54BSC 3.30 Min. 0.50 3.10 0.38 0.21 9.10 7.62 6.25 2.92 Max. 4.80 3.50 0.55 0.35 9.30 8.25 6.45 3.81 Notes: 1. Refer to JEDEC MS-001, Variation BA 2. All dimensions are in millimeter V1.3 4 July, 2009 PT2308L 8 PINS, SOP, 150MIL Symbol Notes: 1. Refer to JEDEC MS-012AA 2. All dimensions are in millimeter V1.3 A A1 A2 b c D E E1 e L θ Millimeter Nom. 1.60 0.15 1.40 4.90 6.00 3.90 1.27BSC 0.60 - Min. 1.35 0.08 1.20 0.33 0.17 4.70 5.80 3.70 0.38 0° 5 Max. 1.77 0.28 1.65 0.51 0.26 5.10 6.20 4.10 1.27 8° July, 2009 PT2308L 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 V1.3 6 July, 2009