2.5W x 2 Class AB Audio Power Amplifier

www.DataSheet4U.com Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw 2.5W × 2 Class AB Audio Power Amplifier PT2305 DESCRIPTION The PT2305 is an audio power amplifier utilizing CMOS Technology specially designed for audio purpose. It can deliver 2.5W × 2 power output to the 4Ω load. The power consumption is very low in stand-by. Total harmonic distortion is lower than 0.03%. The output structure is BTL (Bridge-Tied Load) mode for driving speaker load mode. Built-in over-temperature protection, package size is not occupies PCB space. It is suitable for small or portable products. FEATURES • • • • • • • CMOS Technology Operating voltage: 2.7V ~ 6V Output power 2.5W × 2 (4Ω/10%THD) Built-in 31 steps volume controller Suppress the pop and click noise when mode changed Extreme low current consumption in Shutdown mode (Icc<0.7µA) Built-in over temperature protection APPLICATIONS • • • • LCD monitor or TV Portable audio Multimedia speakers Other audio applications PT2305 V1.0 -1- September, 2004 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw 2.5W × 2 Class AB Audio Power Amplifier PT2305 PIN CONFIGURATION Bypass GND -Out 1 VDD +Out 1 GND Shutdown Mute VDD DC_Vol 1 2 3 4 5 6 7 8 9 10 20 19 18 17 GND GND -OUT 2 VDD +Out 2 GND Vo 2 Vin 2 Vin 1 Vo 1 PT2305 16 15 14 13 12 11 PT2305 V1.0 -2- September, 2004 Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw 2.5W × 2 Class AB Audio Power Amplifier PT2305 APPLICATION CIRCUIT ORDER INFORMATION Valid Part Number PT2305 PT2305-S PT2305-D PT2305 (L) PT2305-S (L) PT2305-D (L) Package 20 Pins, TSSOP, 173mil 20 Pins, SOP, 300mil 20 Pins, DIP, 300mil 20 Pins, TSSOP, 173mil 20 Pins, SOP, 300mil 20 Pins, DIP, 300mil Top Code PT2305 PT2305-S PT2305-D PT2305 PT2305-S PT2305-D Notes: 1. (L) = Lead Free 2. The Lead Free mark is put in front of the date code. PT2305 V1.0 -3- September, 2004