志丰电子麦克风模组实现高质量语音交互,满足高SN比和声压要求
麦克风基本上可分为两种,一类是电容式麦克风,一类是MEMS麦克风,两者的区别是,一个是接线用,一个更多是做模组用。志丰电子近期发布3款车用麦克风模组,可应用于汽车智慧语音。Kingstate 也提供具备 Hi SNR & Hi AOP特性的麦克风模组,可使 Noise Reduce & Acoustic Echo Cancelling 特性更佳,适用于一些对信噪比和声压级要求严格的场合。
驻极体电容式麦克风,其中ECM组成参考下图,FET主要用于信号的放大,背极板被极化存储电荷。
微机电系统麦克风 (Micro ElectroMechanical System,MEMS)的组成比较简单包括ASIC、MEMS、PCB、和外壳;制造工艺包括DB-IC、DB-MEMS、WB、贴壳、打标、回流等,主要是做模组使用。
麦克风模组相关型号和尺寸如下:
相关电气性能参数参照如下:
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新增喇叭、电容式麦克风、MEMS麦克风模组、蜂鸣器等声学组件产品供应商志丰电子
志丰电子(Kingstate)成立于1977年,是台湾第一家取得ISO认证的专业电声公司,多年来致力于研发制造声学组件和蓝牙耳机为主的产品,为各领域提供全方位的电声解决方案。成立以来,志丰电子已推出蜂鸣器、警报器、喇叭(多媒体喇叭,音箱喇叭,耳机喇叭)、电容式麦克风、MEMS麦克风模组等产品。其产品通过车规认证,并在1990年进入了汽车应用市场。志丰电子旗下麦克风产品灵敏度覆盖-25~-45dB,
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型号- KECG2742WBL-1W,KECG10 SERIES,KMM40 SERIES,KMXH09 SERIES,KECG15,KMM35,KMM37,KECG15 SERIES,KEXG15 SERIES,KECG2742 SERIES,KEAG1500L,KECG2237TBL-SN65,KEEG1532WB-GHK,KEKG27 SERIES,KMXH16,KECG22,KMM3526 SERIES,KECG2742,KMM30131203-145L,KMM40,KEBG6542PF-D,KEEG15 SERIES,KECG27 SERIES,KEEG1342SBL-C,KECG32 SERIES,KEXG22,KMXH16 SERIES,KEAM5010TBL-KS2,KECG10,KMXH09,KEEG13 SERIES,KECG22 SERIES,KECG35,KEEG15,KMXM191520T-KS,KEXG22 SERIES,KMM37 SERIES,KECG2742WFL-G1,KEEG1532WB-60L,KMM35 SERIES,KEXG15,KECG27,KEAG45,KMXF21 SERIES,KMXF21,KECG35 SERIES,KEAG45 SERIES,KEIG4537WFL-3KL,KMXH24,KEEG13,KMXH24 SERIES,KECG32,KMM3526
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【经验】MEMS麦克风五大输出方式类别介绍
目前业界ECM (驻极体电容式麦克风) 的输出信号几乎都都是模拟的,且以单端(Single ended)占多数,但反观MEMS麦克风,会有模拟和数字两大类别输出方式,其中模拟又分为单端& 差分两种输出。数字部分则有 PDM/ I2S/ TDM 三种音频接口,其中以PDM接口占多数。以下志丰电子分别介绍MEMS麦克风五大输出方式类别。
【经验】麦克风SNR和AOP参数对声音质量的影响
志丰电子(Kingstate)有几种高信噪比和高AOP MEMS麦克风或ECM麦克风,可以应用于高质量的录音产品,可以轻松处理大声音或微小声音信号,使DSP可以完美地处理AEC,从而进一步提高了降噪性能提高产品性能和性价比。
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