AW85828STSR中文资料4.5 V to 28 V, 50W Stereo, Digital Input, High Efficiency Class-D Audio Amplifier With SKTune Algorithm数据手册Awinic规格书

描述 Description

The AW85828S is a high-efficiency, stereo digital Class-D audio amplifier with low power dissipation and sound enrichment. The supply voltage (PVDD) of an audio amplifier is normally provided by a DC-DC converter. Compared with a fixed PVDD, a variable PVDD that fluctuates based on the audio signal significantly improves efficiency, lowers idle current, and reduces heat.The powerful audio DSP core of AW85828S implements a proprietary algorithm called PTC(Power tracking Control).The PTC algorithm detects the upcoming audio power demand and provides a PWM control signal for the former DC-DC converter via the GPIO pin.The AW85828S supports Over-Current Protection, Over-Temperature Protection, DC Protection, Under-Voltage/Over-Voltage Protection, short-circuit Protection to protect the device.AW85828S is available in a ETSSOP-32L Package.

特性 Features

 Integrates SKTune AlgorithmSmart Protection (Anti-chip Voltage Limiter Thermal Limiter, Excursion Limiter and Auto Voltage Monitor)、Power tracking Control (PTC)、Input Mixer, Output Crossbar、2x15 Parametric Equalizers (EQ)、Dynamic Equalizer Enhancement (DEE)、Sound Field Expansion (SFE)、Multi-band Dynamic Range Control Output Power ：2×50W@4Ω, 23V, THD+N<1% in BTL mode 、1×100W@2Ω, 23V, THD+N <1% in PBTL mode Excellent Audio Performance：THD+N≤0.02%@4Ω,1 W,1 kHz,PVDD = 12 V、SNR≥110dB@4Ω,1%,1 kHz,PVDD = 24 V, A-weighted、Noise Level < 34uVrms @LLM mode、Noise Level < 28uVrms @Low Noise Enable High-efficiency Class-D Amplifier：Power efficiency 90%, RDSon 100mΩ、Low quiescent current < 18 mA 、Supports Low-Loss ModeI2S/TDM interface ：I2S, Left-Justified and Right-Justified、Supports 1/2/4/6/8 Slots TDM、Supports 32k,44.1k,48k,88.2k,96k,192kHz Sample Rates、Data Width: 16, 20, 24, 32 BitsI2C-bus control interface(1MHz)Extensive Pop-Click SuppressionVolume control (from -96dB to 0dB)Multiple switching frequenciesAM/FM avoidance：Supports 384kHz、480kHz、576kHz、768kHz、960 kHz、1200kHz switching frequencies、Support Spread Spectrum to Enhance EMI PerformancePower Supplies ：PVDD: 4.5V~28V、DVDD: 1.8V/3.3VIntegrated Self-Protection：Over-Current Protection (OCP)、Over-Temperature Protection (OTP)、Over / Under-Voltage Lock-out (OVLO/UVLO)、DC-detect and short-circuit protectionETSSOP-32L Package