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。

PartNo Description Function

Topology

Output Type

Max. Output Power

SNR, THD

ANC Performance

Supply Voltage

Package

Datasheet Demo Buy PartNo
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 Feedback 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
AS3421 Low power ambient noise cancellation speaker driver Receive path Feedforward Stereo SE 34mW@16 Ohm load; 24mW@32 Ohm load >100dB, <0.1% (SE, 34mW, 16 Ohm) >25dB 1.0V to 1.8V QFN-24 (4x4) AS3421
AS3418 Enhanced ultra-small ANC speaker driver Receive path Feedforward, Feedback, Hybrid 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 (2.645 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。