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Digital Active Noise Cancellation

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

Tech - Audio - Video

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。

资源发布器

PartNo Description Function

Topology

Output Type

Max. Output Power (BTL, 1.8V, 32 Ohm)

mW

SNR, THD (SE, 34mW, 32 Ohm)

dB

ANC Performance

dB

Supply Voltage

V

Package

Datasheet Demo Buy PartNo
AS3412

Ultra small ANC speaker driver

Receive path Feedforward Stereo/BTL 90 >112, 5% >30 1.8 to 1.6 WL-CSP25 (2.2x2.2) AS3412
AS3415

Active noise cancellation solutions for stereo headsets

Receive path Feedforward Stereo/BTL 110 >110, 0.1% >20 1.0 to 1.8 QFN-32 (5x5) AS3415
AS3418

Enhanced ultra-small ANC speaker driver

Receive path Feedforward, Feedback, Hybrid Stereo/BTL 90 118.5 >30 1.4 to 1.8 WL-CSP25 (2.45x2.93) AS3418
AS3421

Low power ambient noise cancellation speaker driver

Receive path Feedforward Stereo SE 32 SE: 35 >100, <0.1% >25 1.0 to 1.8 QFN-24 (4x4) AS3421
AS3422

Low power ambient noise cancellation speaker driver

Receive path Feedback Stereo SE SE: 35 >100, <0.1% >20 1.0 to 1.8 QFN-32 (5x5) AS3422
AS3435

Active noise cancellation solutions for stereo headsets

Receive path Feedback Stereo/ SE / Mono BTL with bypass 125 >106, <0.1% >25 1.0 to 1.8 QFN-36 (5x5) AS3435

Mobile Application - rel. Tech

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。