Features
Ultra low THD+N:0.008%
AB/D operate mode
Two NCN level: 0.65w and 0.8w
Unique RNS
High SNR: 91dB
EEE Function, Greatly reduces EMI over the full bandwidth
Excellent Pop-Click Suppression
No VREF capacitor
One-pulse control
Filter-Free Class-D Architecture
High PSRR (72dB at 217Hz)
Low Shutdown Current (<0.1µA)
Power Supply Range: 2.5V~5.5V
Over-Current Protection
Over-Temperature Protection
Small QFN 1.5mmX1.5mmX0.55mm-9L Package
Description
The AW8155B is a non-crack-noise (NCN), ultra-low-EMI, filter-free, AB/D output mode selection, unique RNS technology, 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 damageat high power levels and invites the user to bask in immense musical enjoyment.
AW8155B NCN output power can be set to 0.65w or 0.8w for different speakers, this feature is embedded in order to protect speakers from damage caused by an excessive sound level.The AW8155B features a unique RNS technology, which effectively reduces RF energy, attenuate the RF TDD-noise, an acceptable audible level to the customer.
The AW8155B features the EEE (Enhanced Emission Elimination) function which greatly reduces EMI over the full bandwidth.
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 AW8155B is available in an ultra small QFN 1.5mmX1.5mmX0.55mm-9L package. The AW8155B is specified over the industrial temperature range of -40℃ to +85℃.
