【应用】采用混合降噪模式的麦克风,灵敏度-38dB,AOP 123dB,满足TWS耳机降噪需求
随着新一代手机的问世,都慢慢取消3.5mm耳机插孔,现在ANC TWS耳机逐渐替代传统的有线耳机,原因是:ANC耳机听感更好。ANC正是利用了声波相消干涉的现象,其工作原理为耳机根据采集到的噪声生成一个与之频率和幅度相等,但相位相反的声波,并由扬声器在耳道内播放。最终人耳听到的即是环境噪声和反相了的环境噪声叠加的结果,参考麦克风采集噪声信号的主动噪声控制系统,降噪效果的好坏和麦克风的灵敏度、截止频率、AOP等参数的影响有关。
本文推荐志丰电子麦克风KMM3729113865AMM用于TWS耳机,满足其降噪需求。下面主要从应用框图、参考设计原理、电性能参数等方面分析该产品应用于TWS耳机的优势。
应用框图:
从框图可以看出前馈麦克风耳机使用耳罩外的参考麦克风采集噪声信号的主动噪声控制系统,后馈麦克风使用耳罩内的误差麦克风采集噪声信号的主动噪声控制系统。应用优势:采用这种混合降噪模式,效果比单一的前馈式或者反馈式好。
参考设计原理图:
上面参考设计中建议MIC输出采用difference的形式输出,其设计的应用优势:有利于降低噪声,增加抗干扰能力。
电性能参数:
从上表中可以看出,志丰KMM3729113865AMM,灵敏度可达-38dB,失真度低THD在0.15%,AOP达到了123dB。
综上,志丰电子麦克风KMM3729113865AMM应用优势总结为:灵敏度高,低失真,高AOP,工作电压范围宽1.5-3.6V,提高ANC降噪的效果,使人听感更好,满足TWS耳机降噪需求;此外是麦克风的不错选择,和国外同类产品的品牌相比性价比高。
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型号- KECG2740PBL-A,KPEG262-24V,KPEG350,KSSGL4B12-S,KPEG114,KEIG4537TFL-N,KPEG260H,KPEG116,KPEG272H,KPEG351,KPEG110,KPEG352,KPEG232,KPEG353,KPEG112,KDSG48008-BOXW,KEKG2247TB-A,KSSGH5B43,KDSG2014008C-10,KPEG238,KDSG48008-BOXP,KPEG132H-40,KMM4030102663DM8,KEKG2247TBL-A,KPEG651AN,KSMG45008-05,KEBG6542PF-D,KPEG220,KPEG222,KPEG106,KPEG228,KSTG931AP,KXG1203CLF,KECG2738WBJ-52L,KPEG153H,KPEG250H,KECH2732TBL-SN70,KDSG4028008LS-10,KDRG14032-3,KSSG95B30,KMTG1612,KPEG218,KECG2738PB-A,KXG0905CW2,KDMG40008,KPEG813SAN,KPEG501-D,KDSG160908C-10,KPEG203,KEAG4530WB-80L,KXG1606C,KPEG200,KPEG209,KPSG100,KSSGH5B43-HQ,KTG1205CL,KPEG207,KPEG208,KCG0603-K,KDMG66008C-50,KPEG1600,KDSG3525008R-BOX,KEIG4537TFL-G02,KECG2742WBL-25L,KDMG10008CL-03,KEAG1500L,KDSG27008C-20,KPEG850SAN,KMPG666-4,KMM4030102664DN9,KPEG132H-30P,KPEG411AC,KMM4030102664DN8,KSSG1206,KMTG1603-2,KSQG703BP,KEAG4534TBL-SN,KDSG30064,KPEG660,KSSGK4B16-A,KPEG420,KPEM268B32PAD2,KDSG37045-020-C2,KPEM268B32PAD1,KSSG33J12-HDB,KXG2512-HB,KPEG422AC,KMM4030102664DM7,KPEGA1600NCW200A,KCG1206-GS,KPEG1501,KDSG17008R-08W1,KPEG202T-1,KPEG655,KPEG270H,KPEG650,KDSG15008X-05W5,KPEG657,KDSG302008X-10WF,KPEG850SCP,TRAG50004-50W,KTG1205HD,KECG2738CBL-A,KPEG106-HS,KXG1212C-H1,KPEG653SAN,KPEG522,KMM3729113865AMM,KDSG25004C-20,KXG2512-A,KPEG848S,KTG1203CL,KDSG37045-020-A3,KSTG911AP,KPEG851SAN,KEFG1542TB-A,KSSG2308,KDSG36050-10E,TRFG7070004-100,KDMG4020008C-20A,KEEG1540PBL-A,KSSGJ4D20-H,KECG2726WFL-G24T,KPEG751,KPEG753,KDSG18008X-10WC,KPEG851SH,KECG1042WBL-G02,KPEG655SA,KPEG750,KPEG755,KXG1205C-HB,KEEG1525WBL-G2A,KDSG37045-020-B,KSSGI4B20,KPEG500,KEEG1340WBL-GN1,KMTG0902,KPEG980,KEEG1525WBL-G02C,KPEG651SAN,KCG0601,KPEG850SD,KPEG502,KPEG503,KPEG232H,KPEG353H,KDMG77008C-30,KSSG74B20,KPEG181-W1,KECG1542PBL-A,KPEG138B40PAD1,KXG0905C-A,KECG1542CBJ-G14,KSTG931APL-H2,KDRG30032A,KSSG74B16,KSSG1708,KTG1212CL,KEIG6535TB-KM1,KXG0912C,KPEG138B40PAD4,KPEG960,KEIG6334TB-KN,KPEG222H,KPEG355H,KEIG4537TFX-SN72,KBIG3531F08030Z,TRAG52008V-10,KEKG2747TBX-KM,KDSG23008,KPEG853SH,KPEG830,KPEG831,KPEG657SA,KPEG833,KDSG40004C-50,KEKG2244PBL-A,KAAG15008C,KSSG94B16,KEAG6538TF-K,KTG1205C,KPEG355H-24V,KPEG827,KEEG1542WB-12LK,KSSG73B16,KPEG276H,KEEG1542WBL-GKB,KPEG242-5V,KXG1203C-H,KPEG139-1,KDMG26008,KDMG36008-10B,KMTG1303-1,KEEG1538TBL-A,KSSG74B17-3,KDRG057016A,KPEG133M,KPEG1600L,KDSG36008P-03,KMTG1102-A1,KPEG350H-54V,KPEG650SAN,KBIG3532F09030AZ,KSSG1508,KDRG57032,KSSGJ4D20,KEAG4542TBL-KA1,KPEG350H,KECG2724WBL-G20,KECG2740WFJ-18L,KDSG302008R-BOX1,KECG3638TFL-A,KECG2034WBL-G01B,KPEG651SA,KPEG653A,KPEG169P32,KSSG1201-16,KPEG810SAND,KTG1205,KECG1338TB-A1,KXG1212C,KPEG650SA,KMM3526092665EN3,KMIG1240H-TR,KEFG1544TBL-C,KPEG655A,KECG2224WFL-G01R,KPEG207H,KPEM268F,KXG0903C1,KECG2738WBL-G43,KPEG132B30PAD1,KSTG931RP-HZ,KXG1201C,KPEG750P,KPEG1500NC,KDSG1511006Q-09T,TRFG102102004-120,KPEG218H,KDSG50025HS,KSSG73B16K,KDMG36008-10BW14,KPEG653SA,KECG2730TB-AS,KDSG28008C-20,KERG2748TBX-KM,KEIG4524WBL-3KL,KXG2505,TRFG50016C-30A,KDMG40008X-BOX,KXG1203C,KXG1203A,KCVG084B16-A,KSSGJ4B16-S,KPEG200H,KSSG33J12-3,TRFG7040008C-50,KDSG20008R-10WA,TRFG8888004-100,KXG1201,KECG2738WBL-GWT,KEFG1541WB-G07,KEEG1538WB-100LE,KPEG850SH,KEEG1538WB-100LB,KECG3640PF-A,KECG3640WF-31L,KTG0905CL,KPEG651A,KPEG750PA,KEIG4536TFL-NH,KEEG1540CBL-A,KXG1212,KEEG1525WBX-G11,KDMG28008-05,KXG1205C,TRFG105105004-150,KPEG132H-30WA,KPEG242-24V,KPEG242-12V,KDRG40016D,KDRG40016C,KDMG151508-05,KXG1205,KEEG1542TBL-KA1,KMTG1261,KEKG2247WB-15L,KAAG13008-07C,KPEG620AN,KPEG228-24V,KEFG1544WBL-G01,KPEG138A40,KXG1612,KMTG1003-F,KPEG182,KPEG183,KDMG50004C-30,KPEG811SAN,TRAG58004V-50,KPEG181,KETG1544TB-RF-CL,KPEG810SANDR,KPEG153H-2K,KPEG853S,KEEG1342SBL-C,KMTG1203,KEIG4537WBL-25L,KPEG171,KDMG30008X-BOX1,KPEG621SAN,KDMG30008X-BOX2,KPEG1600NCB,KECG3640TF-A,KPEG810SAN,KAAG20008C-08,KMM3729114258ABN,KPEG161,KPEG162,KPEG163,KPEG280,KPEG848SD,KPEG169,KECG2742TBL-KA1,KPEG165,KSSGD3B16,KDSG20008,KSTG951AP,KEIG4537WFL-3KL,KSSG13J12-N,KPEG400AC,KDMG20008,KPNG1020,KPEG270,KPEG150,KPEG623SAN,KPEG272,KDMG40004-10WA,KPEG137A30,KPEG278,KPEG159,KPEG850S,KPEG276,KDMG92008C-20,TRFG7979004-100,KECG2237TBL-SN65,KSSGI3J12-A,KDSG23050P-06B,KCG1202,KECG2724TBL-RF,KXG1205-LH,KPEG260,KDMG40016-20W,KPEG141,KPEG262,KPEG146,KPEG267,KPEG142,KPEG263,KEAG6535TB-KM,KPEG853SAN,KDRG09016A-4,KPEG208H,KTG0912CL,TRFG8282004-100,KDSG29008,KPEG250,KPEG130,KPEG251,KPEG135,KPEG755S,KTG1212,KPEG621AN,KPEG755P,KPEG132,KPEG253,KPEG134,KECG2738TBJ-A,KPEG611SAN,KXG1612C,KDMG15008-05,KEKG2741WBL-G01S,KPEG158-KS,KEEG1540TBJ-A,KDSG30008,KSSGJ4B20-NEW,KSSG3108,KDMG36008-10DWA1,TRFG5353004-30,KDMG10008C-03,KPEG657S,KPEG126,KPEG006,KPEG120,KPEG121,KPEG851S,KPEG122,KPEG243,KPEG123,KPEG244,KEEG1540WBL-G04N,KXG1606,KXG1601,KDMG16008-03,KPEG1600NC
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SERIES,NSI8240CX-DSPR,NSD7312-Q1,NSM3013,NSM3012,NSA2860_SSOP16,NSA2862X,NSI6642B-DSWKR,NSM1071,NSM1072,NSI823XC,NSI6642A-DLAMR,NSD5604N,NSI319X,NSI6642D-DLAR,NSI8100NC,NSI6602B-Q1SWR,NSI6622ND-DSPNR,NSI6601B-DSPR,NSA2860X-QQNR,NSI8210NX,NSI6642D-DSWKR,NSI6602MF-DSWTR,NSD5604E,NIRSP31,NSI6602MNB-DSWTR,NST175,NST1075,NSI6602A-DSPNR,NCA9617A SERIES,NSI68010B-Q1SWAR,NSI1312D,NSI6642B-DSWR,NSI8222NX,NSI6601C-DSPR,NSI6622NB-DLAR,NSIP8841W1-DSWR,NSP1631,NSI8221CX-DSWVR,NSP1632,NSP1630,NSD56008-Q1HTSPR,NSI6622C-DLAR,NSM301X,NSM107X,NSI824XC,NSI6602VA-Q1SPNR,NSI6602ND-DLAR,NSI6801C-DSWFR,NSD3604-Q1,NCA3176,NSI6801MB-DSWVR,NSD3608-Q1QAJR,NSI1312S,NSI6622VB-Q1SWR,NSI6622B-Q1SPNR,NSD5604N-DHTSPR,NSD1624-DLAJR,NSI68011C-Q1SWAR,NSI6602VA-DLAMR,NSI6602NA-DLAMR,NSI6602NB-DSWR,NSD5604E-DHTSTR,NSR35XXX,NSI6622NB-Q1SWR,NSD5604N-Q1HTSPR,NSD1224X,NSI6602C-Q1SPNR,NSI8100W,NSI6622NA-DSPNR,NSIP8844W1-DSWR,NSI6622NB-DSWKR,NSE5702,NSE5701,NSI8100N,NSP183X,NCA1044-Q1DNR,NSI6622NC-DLAR,NCA1021S-Q1DNR,NSI6622VB-Q1SPNR,NCA1044N-Q1DNR,NSD16241-DSPKR,NSI3190,NSI6602VD-DSWR,NPC060N120A-QTOOT,NSI6622NA-Q1SWKR,NSE34050Q,NSD1224LA-DAFR,NSI8241SX,NSI6622NA-Q1SWR,NSI6622NC-Q1SPNR,NSI8231CX-DSWR,NSI1052-DSWR,NSPGL1 SERIES,NSI6622VA-Q1SPOR,NSA2860X_QQNR,NSI6801B-DSWFR,NSI6602B-Q1SPNR,NSI6601WC-DSWVR,NSI6651ASC-Q1SWR,NSC6272,NSI8263CX-DSWR,NSD8310-Q1HTSXR,NSC6273,NSREF31XX,NSI6622ND-DSWR,NSI6622NC-DSPNR,NSI6602NB-DLAR,NSI6602NB-DSPNR,NSA5312,NSI6622VC-Q1SWKR,NSPGL1,NSI6602A-Q1SWR,NSI6622NC-Q1SPOR,NSPGS2 SERIES,NSI6642C-DLAMR,NSR7808,NSI8220WX,NSI8266WX,NSD56008-Q1,NSD5604NE,NSI6622VA-Q1SPNR,NSI6602VB-DSWKR,NSL2161X-Q1,NCA1042BN-Q1SPR,NCA1057-Q1SPR,NCA1043B-Q1,NCA9511,NSI6602A-DSWR,NSC6280,NSI6602NA-Q1SWKR,NSD8308-Q1,NSI6602NC-DSWR,NSI6801TC-DDBR,NSI8242SX,NSI68515AC-DSWR,NSI6602B-DSWKR,NSI6602VD-DLAMR,NPCO60N120A-QTOIT,NSI8220CX-DSWVR,NSI6622NB-DSWR,NST235,NST117,NSI6602VC-DSWKR,NSI6602VC-Q1SWKR,NSI6602MB-DSWDR,NST118,NCA954X SERIES,NSD16242-Q1SPR,NCA9306 SERIES,NCA1044-Q1SPR,NSI6651,NSI6642B-DLAMR,NSI6602C-DSWKR,NSI8240NX,NSE34050 SERIES,NCA1057N-Q1DNR,NSP163X,NSI6602NC-DSPNR,NCA1042BN-Q1,NSI8221WX,NSI66X2,NSI6631ASC-Q1SWR,NSI6602MNC-DSWTR,NCA1042B-Q1DNR,NSI6642,NSI6601C-DSWVR,NIRS2X,NSI6601MB-DSWR,NSI8266SX,NSI6602NB-Q1SPOR,NCA34XX SERIES,NSI6602NC-Q1SPOR,NSD7310A,NSD8306-Q1,NSI6622ND-DLAMR,NSG65N15K,NSD12409-Q1SPR,NSE4250 SERIES,NCA1042CN-DSPR,NSI6602VA-DSWKR,NSI6642D-DLAMR,NCA1051N,NSI6642A-DSWKR,NIRS20N1-DSPR,NIRS21N1-DSPR,NSI6622NA-DLAR,NSC2860X-DQNR,NSI1042-DSWVR,NCA1042C-Q1SPR,NSI6602C-DSWR,NCA1057-Q1DNR,NSI8221CX-DSPR,NPD010N120A-DTOGT,NSI6602VB-Q1SWR,NSI8210CX-DSPR,NSD1026V-QISPR,NSD12416‒Q1,NSI1050-DDBR,NSI8241NX,NSI6602NC-Q1SPNR,NCA1042BN-Q1DNR,NSR10AXX SERIES,NST461,NSD2621X,NCA1042A-Q1,NSI8222WX,NST103,NSI1303D0X,NSI1303E2X,NSI6622A-Q1SWKR,NSI6602VC-DLAR,NSR31 SERIES,NSD16242-DSPR,NCA9555,NSI1052,NSC6360,NSC6362,NSI6622NB-DLAMR,NSI6651ALC-DSWR,NSC6364,NSI6602NA-DSPNR,NSI6622A-DLAR,NSI6622C-Q1SPNR,NCA1042C,NSI8220CX-DSWR,NSI6622C-DSPNR,NSA3166,NCA1042A-Q1SPR,NSIP8941W0-DSWR,NSI6642B-DLAR,NCA1042B-Q1,NSPGD1M,NSPAS3 SERIES,NSD1624-DSPR,NSI6602VA-Q1SWR,NSD1026V-Q1HMSR,NSI8242CX-DSWR,NSI6602MNC-Q1SWTR,NSL2163X-Q1,NST20,NIRS31,NSREF30XX,NCA9545,NSI6622NA-DLAMR,NSI1042,NSI6611,NCA9546,NSI6622B-DSPNR,NCA9306,NCA9548,NSD12416-Q1SPR,NSI6602MC-Q1SWTR,NSI8242NX,NSD8381-Q1QAIR,NSD8308-Q1HTSXR,NCA9617A,NST1001HA,NSI6602VA-DSWR,NSI1303D2X,NSI1050,NSI6601B-DSWVR,NSD7310-DHSPR,NSI6601,NSD731X-Q1,NCA1057N-Q1SPR,NSR7808GXX,NSD7312-Q1HSPR,NSI6602VB-DLAMR,NSI6602MNF-DSWTR,NSD1026V-DHMSR,NSA3300,NSI6602C-Q1SWKR,NSC2860X,NSD11416‒Q1,NSI6622NB-Q1SPNR,NCA1051N-DSPR,NSI6611ASC-DSWR,NSI22C11,NSI8230CX-DSWR,NSI6801B-DSPR,NSI6622A-DSPNR,NSD12409‒Q1,NSD5604NE-DHTSTR,NSPDSX SERI
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,
公司动态 发布时间 : 2021-04-26
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型号- N240,R110NB,6233,6131 SERIES,R110N,6192,K265G-UU,N240N-IB,4108N-S,2821,6161C-IC,8274B-XR,H2355E-U,4108 SERIES,P106W-U,H158 SERIES,E11DN-G,K255B-SR,6252M-PUC,R110C,8266,K265 SERIES,6222 SERIES,6220 SERIES,B100 SERIES,H132,U111H-R,H256,H255,6161B-R,Z115H-RI,5220D-UUQ,3121N,N200A SERIES,VOI721,6131,6252,8266 SERIES,6251,V200B-PR,U111A-SL,4108E-S,8922A,K265B-UU,H215E-UC,6251 SERIES,6233 SERIES,622X,4108,8296N-PR,9102S-R,K265,8124N-P,6221 SERIES,B200T-UA,H158,8276M-PU,B100,PE0211,L216A-SR,6235Z-RRB,CI-D0XGS08J,CI1302,U151B-R,E11SN-G,N200A,B200H-RR5,N200,6252B-PR,H258A-S,H132 SERIES,6162C-IC,P102W-U,6192 SERIES,C203N-S,BR8051A01,RTL8726E,RTL8730E,622X SERIES,8223X-SR,Q111N,3121N SERIES,6221N,6252B-PRC,6220HL-IF,CSK6011,P232X,L287B-SR,6162N-IC,CSK6012,8274N-PR,6189 SERIES,D232B-WB,6111E-UC,6252C-PUB,N280,V200,NM111-II2,9103S-R,N240 SERIES,H115E-U,3243E-U,3243A-S,7221A-SRF,V200A-S,H256 SERIES,N200 SERIES,D211A-WC,V200E-U,RTL8720E,6161B-RB,G297N-DH,6252 SERIES,N100E-UW,H118A-S,S222T,6112D-UC,Q101N,CSK601X,6188,6221,6220,6223,6189,6222,V200Z-R,6223 SERIES,6188 SERIES,V200Z,V200Z SERIES,L297B-SR,X253T-IH,6162T-IC,J216A-SR,BL616U-00-Q2I,6221N SERIES,V200 SERIES,N280 SERIES
【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。
设计经验 发布时间 : 2021-05-27
【经验】MEMS麦克风各种输出界面介绍
目前业界ECM的输出信号几乎都都是Analog,且以单端占多数,但反观MEMS Mic,会有Analog & Digital 两大类别的输出界面,其中Analog 又分为单端& 差动两种输出。本文志丰电子分别介绍MEMS Mic输出界面类别。
设计经验 发布时间 : 2021-12-24
志丰电子ECM麦克风选型表
志丰电子提供以下技术参数的ECM麦克风选型,Operating Voltage(VDC)=1.5~4.5,S/N Ratio(dBA)=54~72,高降噪,高SNR,防水防尘6K9K,模组化设计,耐高低温,抗震
产品型号
|
品类
|
Type
|
Directional
|
Dimensions
(mm)
|
Sensitivity
(dB)
|
Operating Voltage
(VDC)
|
Impedance
(Ω)
|
Rated Voltage
(VDC)
|
Senvitivity Reduction
(dB)
|
Frequency Range
(Hz)
|
Max current consumption
(mA)
|
S/N Ratio
(dBA)
|
KEEG1342SBL-C
|
ECM麦克风
|
SMD Type
|
Omnidirectional
|
4.0mmx1.3mm
|
-42±3dB
|
2VDC
|
2.2K
|
10VDC
|
-3dB@f=1KHz, 1Pa, Vs=2.0V D.C. to 1.5V D.C.
|
100~20000HZ
|
0.5@Vs=2.0V D.C. RL=2.2KΩ
|
58
|
选型表 - 志丰电子 立即选型
【产品】底部端口3.5x2.65x0.98mm的数字MEMS麦克风MD-HRA261-H10-2,具有1位PDM输出
MD-HRA261-H10-2是志丰电子推出的一款采用小型封装,具有高信噪比和多模底部端口的数字MEMS麦克风,支持1位PDM输出;该产品由MEMS传感器、低噪声级放大器和∑-△ 调制器组成。
产品 发布时间 : 2022-12-30
【经验】一文带你解锁常见汽电高级麦克风应用说明
随着汽车先进电子越来越发达,可应在车上的产品越来越多,其中又以Mic收音应用最为广泛,志丰电子(Kingstate)文中列举以下7种应用说明:1、驾驶免持通讯 2、多区域免持通讯 3、E-call 4、行车纪录器 5、ANC 6、语音识别操控 7、车外监听Mic。
设计经验 发布时间 : 2021-10-27
电子商城
现货市场
服务
可自由定制铜排形状尺寸;检测精度:0.5%~1.0;电流测量范围 ±300-500A。低噪音 (0.27mVpp);低磁力残余误差:2mV;响应性能<4μSec;支持RoHS指令 、AEC-Q200。
最小起订量: 100个 提交需求>
可定制位移传感器量程范围10~600mm,该YWD型位移传感器表面有带刻度的透明窗☐,每毫米的变化量误差不超过3ue/mm,可在静态、准静态和低频动态下工作。主要指标:非线性<0.2%;供桥电压<10v;测试精度:0.01mm。
最小起订量: 1 提交需求>
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