PST8155

The PST8155 is a non-crack-noise (NCN), ultra- low-EMI, filter-free, AB/D output mode selection, second generation Class-D audio amplifier. Ultra low THD+N,Unique NCN function, which adjusts the system gain automatically while detecting the “Crack” distortion of output signal, protects the speaker from damage at high power levels and brings the most comfort- able listening experience to the customers.PST8155 NCN output power can be set to 0.65w or 0.85w for different speakers, this feature is embedded in order to protect speakers from damage caused by an excessive sound level.The PST8155 features a unique RNS and net audio technology, which effectively reduces RF energy, attenuate the RF TDD-noise, an acceptable audible level to the customer.The PST8155 features the EEE (Enhanced Emission Elimination) function which greatly reduces EMI over the full bandwidth. The PST8155 achieves better than 20dB margin under FCC limits with 24 inch of cable. The filter- free PWM architecture and internal gain setting reduces external components count, board area consumption, system cost and simplifies the design. The over-current, over-temperature is prepared inside of the device. The PST8155 is available in an ultra small 1.5mm×1. 5mm FC-9 package. The PST8155 is specified over the industrial temperature range of -40℃ to +85℃.