AW8155BFCR中文资料Non-Crack-Noise, Ultra-Low-THD+N, Ultra-Low-EMI,Second Generation Class-D Audio Amplifier数据手册Awinic规格书

描述 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 damage at high power levels and invites the user to bask in immense musical enjoyment.AW8155B 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 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 AW8155B 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 AW8155B is available in an ultra small FCQFN 1.5mmX1.5mmX0.55mm-9L package. The AW8155B is specified over the industrial temperature range of -40℃ to +85℃.

特性 Features

• Ultra low THD+N:0.007%
• AB/D operate mode
• Two NCN level：0.65w and0.85w
• Unique RNS
• High SNR:95dB
• EEE Function, Greatly reduces EMI over the full bandwidth
• Excellent Pop-Click Suppression
• No VREF capacitor
• Pin compatible with AW8155(A) AW8145
• One-pulse control
• Filter-Free Class-D Architecture
• High PSRR (75dB at 217Hz)
• Low Shutdown Current (<0.1mA)
• Power Supply Range: 2.5V~5.5V
• Over-Current Protection
• Over-Temperature Protection
• Small FCQFN 1.5mmX1.5mmX0.55mm-9L Package