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柔性电源配置- PVDD： 4.5V到14.5V - DVDD和I/O： 3.3V各种输出配置-2×14W立体声模式（4Ω，12V，THD+=1%）-2×10.5W立体声模式（6Ω，12V，THD+=1%）优秀音频性能- THD+N≤0。02%在1W，1kHz，PVDD=12 V-107 dB加权信噪比（信噪比）空闲切换加权噪声≤37- 16mA低静止电流- 90%效率到6Ω负载在12V可配置数字音频接口我C控制多达4可选择地址，我，左，正确，TDM音频格式-3线数字音频接口没有MCLK要求-32 kHz，44.1kHz/48kHz输入样本率- SDOUT声回波取消-AEC或1.1 / 2.1系统子通道信号路由高级音频效果调优-灵活的数字和模拟增益调整-高通滤波器输入信号路由器-2×8前基站&2×2后基站支持增强音频频率调优模拟保护-故障状态报告通过GPIO和IC寄存器-过电流和直流保护-温度保护-过电压保护.
1. Features Flexible Power Supply Configurations - PVDD: 4.5V to 14.5V - DVDD and I/O: 3.3V Various output configurations - 2×14W, Stereo mode (4Ω, 12V, THD+N = 1%) - 2×10.5W, Stereo mode (6Ω, 12V, THD+N = 1%) Excellent Audio Performance - THD+N ≤ 0.02% at 1W, 1kHz, PVDD = 12V - 107 dB A-weighted signal-to-noise ratio (SNR) - Idle switching A-weighted noise ≤ 37 - 16mA low quiescent current - 90% efficiency into 6Ω load at 12V Configurable digital audio interface - I C control with up to 4 selectable addresses - I S, Left-justified, Right-justified, TDM audio format - 3-Wire digital audio interface without MCLK required - 32kHz, 44.1kHz/48kHz input sample rate - SDOUT for Acoustic Echo Cancellation – AEC or 1.1 / 2.1 system sub-channel signal routing Advanced audio effect tuning - Flexible digital and analog gain adjustment - High pass filter for DC blocking - Input signal router for left and right channel - 2×8 pre BQs & 2×2 post BQs to support enhanced audio frequency tuning Analog protections - FAULT status report through GPIO and I C registers - Over current and Direct current protection - Over temperature protection - Under-voltage and Over-voltage protection - Clock error protection 2. Applications Portable Speakers: Bluetooth, Smart Speakers with Voice Assistant Home Audio: TV, Soundbar, STB (set top box), HTiB (Home Theatre in a Box) Smart Appliances PCs and Laptops 3. General Description ACM8622M is a fully integrated, high efficiency, stereo ClassD audio amplifier with digital inputs. The application circuit requires few passives components to operate with 4.5V to 14.5V PVDD supply, 3.3V DVDD supply. It can drive 2×10.5W output power into BTL 6Ω and 1×23W into PBTL 4Ω@1% THD+N. ACM8622M features one novel PWM modulation architecture, which adjusts PWM common duty cycle during start-up phase to avoid startup pop click. Spread spectrum technology provides lower EMI noise. It allows inductor free application with specified output power situation with ACM8622M. The advanced audio effect tuning capability inside ACM8622M provides one highly integrated solution. It allows turning on / off each block with highly free operations. Both pre and post BQs / volume helps a lot to maintain audio headroom.
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