特性
Ultra low THD+N:0.06%
AB/D operate mode
Two NCN level：0.65w and0.85w
TDD suppression
EEE Function, Greatly reduces EMI over the full bandwidth
Excellent Pop-Click Supression
Pin compatible with AW8145
No VREF capacitor
One-pulse control
Filter-Free Class-D Architecture
High PSRR (70dB at 217Hz)
Low Shutdown Current (<0.1uA)
Power Supply Range: 2.5V~5.5V
Over-Current Protection
Over-Temperature Protection
Small 1.5mm×1.5mm FC-9 Package
说明
The AW8155 is a non-crack-noise (NCN), ul-tra-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 comfortable listening experience to the customers.
AW8155 NCN output power can be set to 0.65w in 0.85w for different speakers, this feature is embedded in order to protect speakers from damage caused by an excessive sound level.
The AW8155 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 AW8155 features the EEE (Enhanced Emission Elimination) function which greatly reduces EMI over the full bandwidth. The AW8155 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 AW8155 is available in an ultra small 1.5mm×1. 5mm FC-9 package. The AW8155 is specified over the industrial temperature range of -40℃ to +85℃.
