PAM8603M

PAM8603M 3W Filterless Stereo Class-D Audio Amplifier with DC Volume Control Features www.datasheet4u.com General Description The PAM8603M is a 3W, sterero, class-D audio amplifier with DC volume control. It offers low THD+N, allowing it to produce high-quality sound reproduction. The new filterless architecture allows the device to drive the speaker directly, requiring no low-pass output filters , which saves the system cost and PCB area. With the same numbers of external components, the efficiency of the PAM8603M is much better than class-AB cousins. It can extend the battery life thus ideal for portable applications. The PAM8603M is available in SSOP-24 and SOP-18 packages. n 3W Output at 10% THD with a 4 Ω Load and 5V Power Supply n Filterless, Low Quiescent Current and Low EMI n Low THD+N n 64-Step DC Volume Control from -75dB to +24dB n Superior Low Noise n Efficiency up to 89% n Short Circuit Protection n Thermal Shutdown n Few External Components to Save the Space and Cost n Pb-Free Package Applications n n n n n LCD Monitors/TV Projectors Notebook Computers Portable Speakers Portable DVD Players, Game Machines Cellular Phones/Speaker Phones Typical Application Circuit Efficiency vs Output Power PVDDL 10μF 1μF Efficiency(%) 100 90 80 70 60 50 40 30 20 10 RL=4Ω RL=8Ω PVDDL +OUTL PGNDL +OUTR -OUTL 0.47μF INL 1μF VREF ON -OUTR 0.47 μF INR VDD VDD 1μF INR 0 0 0.5 1 1.5 Output Pow er(W) 2 2.5 3 INL PAM8603M Radiated Emissions SHDN SHDN ON VDC VOLUME GND 5...