数位主动降噪 - 增强听觉
艾迈斯半导体的数位主动降噪(ANC)技术通过市场领先的主动降噪性能(>40dB)调节环境噪声。该技术同时调谐自然和升压透明模式下的演讲和音乐。
艾迈斯半导体的增强听觉设备支持前馈、反馈和混合主动降噪拓扑结构，并采用自动泄漏补偿(ALC)算法，该算法首次在半入耳耳塞的混合主动降噪功能中实现.
了解有关艾迈斯半导体音频传感技术的更多信息
了解有关移动设备应用的更多信息
模拟主动降噪
模拟主动降噪(ANC)解决方案可大幅减少周围环境中的噪音，提升移动通信和多媒体设备的聆听体验。该产品组合支持前馈、反馈和混合主动降噪拓扑结构。
主动降噪解决方案的成本效益非常高，功耗低于其他同等解决方案。因此，主动降噪有助于显著减少噪音带来的压力，并提升日常生活中的聆听体验。
| 产品编号 | 描述 | Function | Topology | Output Type | Max. Output Power | SNR, THD | ANC Performance | Supply Voltage | Package | 产品规格书 | 演示 | 购买 | 产品编号 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AS3460 | Digital Augmented Hearing | Digital ANC and Augmented Hearing | FF, FB, Hybrid | Stereo Fully Differential | 30mW@32 Ohm load; 50mW@16 Ohm load | 110dB, 80dB @10mW output power (32 Ohm load) | >40dB | 1.8V (typ) | FBGA36 | AS3460 | |||
| AS3435 | Active noise cancellation solutions for stereo headsets | Receive path | Feedforward, feedback, and hybrid | Stereo/ SE / Mono BTL with bypass | 150mW mono differential @ 16 Ohm load; 110mW mono differential @ 32 Ohm load | >106dB, <0.1% (SE, 34mW, 32 Ohm) | >25dB | 1.0V to 1.8V | QFN-36 (5x5) | AS3435 | |||
| AS3418 | Enhanced ultra-small ANC speaker driver | Receive path | Feedforward | Stereo/BTL | 130mW (Mono Differential; 32 Ohm load) | 118.5dB, 0.007% (SE, 30mW, 32 Ohm load) | >30dB | 1.4V to 1.8V | WL-CSP30 package (2.645mm x 2.545mm; 0.4mm pitch) | AS3418 | |||
| AS3415 | Active noise cancellation solutions for stereo headsets | Receive path | Feedforward | Stereo/BTL | 150mW mono differential @ 16 Ohm load; 110mW mono differential @ 32 Ohm load | >110dB, 0.1% (SE, 34mW, 32 Ohm) | >20dB | 1.0V to 1.8V | QFN-32 (5x5) | AS3415 | |||
| AS3412 | Ultra small ANC speaker driver | Receive path | Feedforward | Stereo/BTL | 50mW mono differential @16 Ohm load; 34mW mono differential @32 Ohm load | >112dB, 0.008% (single ended, 10mW, 32 Ohm load) | >30dB | 1.6V to 1.8V | WL-CSP25 (2.2x2.2) | AS3412 |
音频传感
艾迈斯半导体是面向耳机应用的主动降噪(ANC)芯片解决方案的领先供应商。艾迈斯半导体的ANC产品比竞争对手的解决方案尺寸更小、功耗更低、噪音衰减性能更好。
