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PT2303

PTC
Part Number PT2303
Manufacturer PTC
Description 2W x 2 Class AB Audio Power Amplifier
Published Oct 28, 2014
Detailed Description PT2303 2W x 2 Class AB Audio Power Amplifier DESCRIPTION The PT2303 is a power amplifier utilizing CMOS Technology spec...
Datasheet PDF File PT2303 PDF File

PT2303
PT2303

Overview
PT2303 2W x 2 Class AB Audio Power Amplifier DESCRIPTION The PT2303 is a power amplifier utilizing CMOS Technology specially designed for audio purpose.
It can deliver 2W × 2 power output to the 5V power voltage.
The power consumption is very low in stand-by.
Total harmonic distortion is lower than 0.
03%.
The output mode can be switched between the SE (Single-Ended) or BTL (Bridge-Tied 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 Stereo input Output power 2W × 2 (4Ω) Low harmonics distortion (0.
03%) SE and BTL modes operation Suppress the pop and click noise when mode changed • Shutdown function, turn on can into save mode (Icc<0.
5µA) • Built-in overheat protect APPLICATIONS • • • • LCD monitor (for TV) Portable audio Multimedia speakers Other audio applications BLOCK DIAGRAM Tel: 886-66296288‧Fax: 886-29174598‧ http://www.
princeton.
com.
tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan PT2303 APPLICATION CIRCUIT CH1 IN VDD Ri 1uF 20k Rf 20k 6 8 1 -IN1 +IN1 Shut Down VDD Vref GND -IN2 +IN2 AMP2N AMP1N -OUT1 5 220uF 1k BTL/SE Sense ON OFF ShutDown VDD 4,13 POWER BLOCK AMP1P +OUT1 3 VDD CVDD 10uF CB 1uF 10 2,7,15 11 100k SE/BTL HP-IN 16 100k -OUT2 12 HEADPHONE CH2 IN 1uF Ri 20k 9 220uF 1k Rf 20k AMP2P +OUT2 14 ORDER INFORMATION Valid Part Number PT2303-D PT2303-S PT2303-TX PT2303-HT Package Type 16 Pins, DIP, 300mil 16 Pins, SOP, 300mil 20 Pins, TSSOP, 173mil 20 Pins, HTSSOP,173mil Top Code PT2303-D PT2303-S PT2303-TX PT2303-HT V1.
3 2 December 2010 PT2303 PIN CONFIGURATION 16 PINS FOR PT2303-D AND PT2303-S 20 PINS FOR PT2303-TX AND PT2303-HT PIN DESCRIPTION Pin Name Shutdown GND +OUT1 VDD -OUT1 -IN1 GND +IN1 +IN2 Vref -IN2 -OUT2 VDD +OUT2 GND HP-IN NC I/O I O O I I I I I O O I Description Shutdown pin Entire IC into the shutdown mode when this pin connected to the Vcc Ground Channel 1 output (...


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