AW8155AFCR数据手册Awinic中文资料规格书

描述 Description

The AW8155A is a non-crack-noise (NCN),ultra-low-EMI, filter-free, AB/D output modeselection, unique RNS and net audio tech-nology, second generation Class-D audioamplifier. Ultra low THD+N,Unique NCNfunction, which adjusts the system gain au-tomatically while detecting the “Crack” distor-tion of output signal, protects the speakerfrom damage at high power levels and invitesthe user to bask in immense musical enjoy-ment.AW8155A NCN output power can be set to0.65w or 0.85w for different speakers, thisfeature is embedded in order to protectspeakers from damage caused by an exces-sive sound level.The AW8155A features a unique RNS andnet audio technology, which effectively re-duces  RF  energy,  attenuate  the  RFTDD-noise, an acceptable audible level to thecustomer.The AW8155A features the EEE (EnhancedEmission Elimination) function which greatlyreduces EMI over the full bandwidth. TheAW8155A achieves better than 20dB marginunder FCC limits with 24 inch of cable.The filter-free PWM architecture and internalgain setting reduces external componentscount, board area consumption, system costand simplifies the design. The over-current,over-temperature is prepared inside of thedevice.

特性 Features

• Ultra low THD+N:0.007%
• AB/D operate mode
• Two NCN level： 0.65w and0.85w
• Unique RNS
• High SNR:97dB
• EEE Function, Greatlreduces EMI over the full bandwidth
• Excellent Pop-Click Supression
• No VREF capacitor
• Pin compatible with AW8155, AW8145
• One-pulse control
• Filter-Free Class-D Architecture
• High PSRR (-75dB at 217Hz)
• Low Shutdown Current (<0.1μA)
• Power SupplRange: 2.5V~5.5V
• Over-Current Protection
• Over-Temperature Protection
• Small 1.5mm×1.5mm FC-9 Package