AW8055MPR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 AW8055 is a non-crack-noise (NCN), ultra-low-EMI, filter-free, AB/D output mode selection, unique RNS and net audio 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.
AW8055 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 AW8055 features a unique RNS and net audio tech-nology, which effectively reduces RF energy, attenuate the RF TDD-noise, an acceptable audible level to the customer.
The AW8055 features the EEE (Enhanced Emission Elim-ination) function which greatly reduces EMI over the full bandwidth. The AW8055 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 con-sumption, system cost and simplifies the design. The over-current, over-temperature is prepared inside of the device.
The AW8055 is available in an ultra small MSOP 4.9mm×3.0mm×1.1mm-8L package. The AW8055 is speci-fied over the industrial temperature range of -40°C to +85°C.

特性 Features

• Ultra low THD+N:0.007%
• Output Power：
2.65W @ 10%THD，RL=4Ω+33uH，VDD=5V
2.19W @ 1%THD，RL=4Ω+33uH，VDD=5V
• AB/D operate mode
• Two NCN level：0.65W and 0.85W
• Unique RNS
• High SNR:94dB
• EEE Function, Greatly reduces EMI over the full band-width
• Excellent Pop-Click Suppression
• One-pulse control
• Filter-Free Class-D Architecture
• High PSRR：75dB（217Hz）
• Low Shutdown Current (<0.1μA)
• Power Supply Range: 2.5V~5.5V
• Over-Current Protection
• Over-Temperature Protection
• MSOP 4.9mm×3.0mm×1.1mm-8L Package