NS4730 Description:
    The NS4730 is a mono Class G audio power amplifier with an integrated boost charge pump power supply. The amplifier output swings much larger than traditional amplifiers before being clipped. When the supply voltage is 3.6V, the output power of the driving 8Ω load can reach 2W.
    The NS4730 comes with anti-crack-sound (NCN). The amplifier can be set up by software or hardware to operate in four different operating modes: 13dB gain NCNOFF mode; 13dB gain anti-crack (NCN) mode; 24.6dB gain no NCNOFF mode; 24.6dB gain anti-crackle (NCN) mode, very flexible application.
    The NS4730 uses advanced technology to improve the efficiency of the amplifier. In addition, the chip is integrated to suppress the switch machine's click, snap and other noise single circuit. Built-in over current protection, over heat protection and under voltage protection. Ideal for applications where low supply voltage and high output power are required.
    The NS4730 comes in a TQFN4×4-28 package. The rated operating temperature range is -40℃ to 85℃.

Integrated boost charge pump power supply
With anti-noise (NCN) function, software or hardware Settings work mode
Four operating modes: 13dBAv/NCNOFF, 13dBAv/NCN, 24.6dBAv/NCNOFF, 24.6dBAv/NCN
Operating voltage range: 2.7V ~ 4.5V
Output power: 1.6W (10%THD, 3.6V power supply, 8Ω load)
The efficiency is 60%(VDD=3.6V, Pout=1.3W).
High PSRR: -70dB (217Hz)
Low static current (10mA)
"Power on, power off" noise suppression
Overcurrent protection, overheat protection, undervoltage protection
The NS4730 is available in a TQFN4×4-28 package

Mobile phone (cell phone, etc.)
MP3/PMP
Mini speaker