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,该算法首次在松配合耳塞的音频工业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
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
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
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
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
AS3422 Low power ambient noise cancellation speaker driver Receive path Feedback Stereo SE 34mW@16 Ohm load; 24mW@32 Ohm load >100dB, <0.1% (SE, 34mW, 16 Ohm) >20dB 1.0V to 1.8V QFN-32 (5x5) AS3422
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
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

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。