【应用】无FM干扰、AB/D类可选择的功率放大器EG8371用于扫地机基站语音播报，最大驱动功率为5W
扫地机集成了清洁与行进两大系统，模块、部件繁多。机器运行异常时，内部CPU基本都能够检测出异常原因，但普通用户却难以判断。加入语音功能，则CPU检测到的各种异常问题都可直观的通过声音传递给用户，让扫地机不再“有苦说不出”。这是语音功能在扫地机中一个十分重要的应用，就好像身边有一个专业的工程师，可以即时告诉你机器出现的各种异常，并提供解决办法。
语音芯片内部储存着相应的语音片段，可以简单理解成它就是一个储存卡，内部存着很多的音乐片段，通过主控发出的控制信号，播放相应的片段音频；其原理如图1所示；
图1 语音播报原理图
音频信号输出到外部功率放大器，功放将信号放大后通过喇叭单元输出；这样我们就能听到扫地机发出的“呼叫”。
本文推荐屹晶微电子无FM干扰、AB/D类可选择的功率放大器EG8371用于扫地机基站语音播报，优势如下：
1、在5V工作电压时，最大驱动功率为5W（2Ω，BTL负载，THD<10%），音频范围内总谐波失真噪声小于1％，电压系统满足扫地机的预设要求，驱动功率上也符合小型电子设备的喇叭单元；
2、EG8371采用SOP8和ESOP8封装，特别适合用于小音量、小体重的扫地机系统中，方便节省体积。如图2所示
图2 EG8371封装引脚
3、可以通过控制进入休眠模式，从而减少功耗。并且内部具有过热自动关断保护机制，更让用户用的安心、用的省心；
4、工作稳定，增益带宽积高达3.1MHz，并且单位增益稳定。集成内部反馈，可以通过配置外围参数可以调整放大器的电压增益及最佳音质效果，方便扫地机在对音质及效率上的相关应用，行业上是更扩音器和USB低音炮类产品的完美解决方案。
在设计应用方面，EG8371的外围电路简单，且有对应的模式设置引脚，对于需要AB类或D类可以根据引脚拉高或拉低来选择，真正满足一个器件两个类型的设计。
图3 EG8371典型应用电路图
综上，成熟的扫地机方案嵌入语音功放芯片，外围电路简易，开发周期短。是快速实现扫地机智能化的不二选择。
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纳芯微电子（NOVOSENSE）信号感知芯片/隔离与接口芯片/驱动与采样芯片选型指南（中文）
型号- NSI6602NA-DLAR,NSI6602VC-Q1SWR,NCA1051N-Q1SPR,NSI6602A-Q1SWKR,NIRS485,NSIP83086,NSD1624-Q1SPR,NSIP89XX系列,NSI8231,NSI8230,NSD2621C-DQAGR,NSR33XXX,NSI6801LC-DDBR,NSI6602VD-Q1SWKR,NSG65N15K-DQAFR,NST112X,NCA1042A-Q1DNHR,NSI8220NX,NSI6622A-DSWKR,NSI6801TB-DDBR,RS-485,NSD1624-DSPKR,NST7719,NSI8222,NSI8221,NSI8220,NSI6642C-DSPNR,NSI6602MNF-Q1SWTR,NSD11416-Q1STBR,NSI6602VB-Q1SPNR,NCA3491,NSI6642A-DLAR,NSI8221CX-DSWR,NCA1043B-Q1DNKR,NSD1025V-DSPR,NCA1051A-DSPR,NSI6622A-Q1SPNR,NSI6602MNB-Q1SWTR,NSD7310A-DHSPR,NCA1145-Q1SPKR,NSI8210,NSIP8840WX,NST112-DSTR,NSI6601MB-DSPR,NSI8266CX-DSWR,NSI6602VD-DSWKR,NSI8222CX-DSPR,NSD1015MT-DSPR,NCA1021S-Q1SPR,NSI8262CX-DSWR,NCA1051A,NCA3485,NSI68011C-DSWAR,NSI8221NX,NSI6602NC-DLAMR,NST1002,NSI6602VC-DLAMR,NST1001,NSI6602A-DLAR,NSI6602ND-DSWKR,NSD16241-Q1SPR,NSI1303M0X,NSI8240CX-DSPR,NIRSXX,NSI6642B-DSWKR,NSI6602MC-DSWDR,NSI6642A-DLAMR,NSI6642D-DLAR,NSI8100NC,NCA1042B-DSPR,NSI6602B-Q1SWR,NSI6601B-DSPR,NSI8210NX,NSI6642D-DSWKR,NIRSP31,NST175,NST1075,NSI6602A-DSPNR,NSI68010B-Q1SWAR,NSI1312D,NSI6642B-DSWR,NSI8222NX,NSI6601C-DSPR,NSI8221CX-DSWVR,NSI6622C-DLAR,NSA3180T,NSI6602VA-Q1SPNR,NSI6602ND-DLAR,NSD1025V-Q1HSPR,NSI6801C-DSWFR,NCA3176,NSI6801MB-DSWVR,NSPGM1,NSI1312S,NSI6622B-Q1SPNR,NSD5604N-DHTSPR,NSD1624-DLAJR,NSI68011C-Q1SWAR,NSI6602VA-DLAMR,NSI6602NA-DLAMR,NSI6602NB-DSWR,NSD5604E-DHTSTR,NSR35XXX,NSD5604N-Q1HTSPR,NSI6602C-Q1SPNR,NSI8100W,NSI8038X,NSE5702,NSE5701,NSI8100N,NCA1021S-Q1DNR,NSD16241-DSPKR,NSI3190,NSI6602VD-DSWR,NSD1224LA-DAFR,NSI8241SX,NSI8231CX-DSWR,NSI1052-DSWR,NSI6801B-DSWFR,NSI6602B-Q1SPNR,NSI6601WC-DSWVR,NSI6651ASC-Q1SWR,NSC6272,NSI8263CX-DSWR,NSD8310-Q1HTSXR,NSC6273,NSREF31XX,NSI1042C-DSWVR,NSI6602NB-DLAR,NSI6602NB-DSPNR,NSA5312,NSI6602A-Q1SWR,NSI6642C-DLAMR,NSI6601MC-DSWVR,NSI8220WX,NSI8266WX,NSI6602VB-DSWKR,NCA1042BN-Q1SPR,NCA1043B-Q1,NCA9511,NSI6602A-DSWR,NSC6280,NSI6602NC-DSWR,NSI6801TC-DDBR,NSI8242SX,NSI68515AC-DSWR,NSI6602B-DSWKR,NSI6602VD-DLAMR,NSI8220CX-DSWVR,NST235,NST117,NSI6602VC-DSWKR,NSI6602VC-Q1SWKR,NSI6602MB-DSWDR,NST118,NSD16242-Q1SPR,NCA3085,NSI1050C-SWR,NSI6601MB-DSWVR,NSI82XX 系列,NSI6642B-DLAMR,NSI6602C-DSWKR,NSI8240NX,NSI6602NC-DSPNR,NSI8221WX,NSI6631ASC-Q1SWR,NSI1050C,NSA3182,NCA1042B-Q1DNR,NSI6601C-DSWVR,NSA3180,NSI8266SX,NSIP88XX系列,NSD12409-Q1SPR,NSI6602VA-DSWKR,NSI6642D-DLAMR,NCA1051N,NSI6642A-DSWKR,NIRS20N1-DSPR,NIRS21N1-DSPR,NSI1042-DSWVR,NSI6602C-DSWR,NSI8221CX-DSPR,NPD010N120A-DTOGT,NSI6602VB-Q1SWR,NSI8210CX-DSPR,NSI8241NX,NCA1042BN-Q1DNR,NST461,NSI8222WX,NST103,NSI1303D0X,NSI1303E2X,NSI6622A-Q1SWKR,NSI6602VC-DLAR,NSD16242-DSPR,NCA9555,NSI1052,NSC6360,NSC6362,NSI6651ALC-DSWR,NSC6364,NCA1042B,NSI6602NA-DSPNR,NSI6622A-DLAR,NSI6622C-Q1SPNR,NSI8220CX-DSWR,NSI6622C-DSPNR,NSA3166,NCA1042A-Q1SPR,NSI6642B-DLAR,NCA1042B-Q1,NSD1624-DSPR,NSI6602VA-Q1SWR,NSI82XXC 系列,NSI8242CX-DSWR,NSI6602MNC-Q1SWTR,NST20,NSREF30XX,NCA9545,NSI1042,NCA9546,NSI6622B-DSPNR,NCA9306,NCA9548,NSD12416-Q1SPR,NSI6602MC-Q1SWTR,NSI8242NX,NSD8308-Q1HTSXR,NCA9617A,NST1001HA,NSI6602VA-DSWR,NSI1303D2X,NSI6601B-DSWVR,NSD7310-DHSPR,NSR7808GXX,NSD7312-Q1HSPR,NSI6602VB-DLAMR,NSA3300,NSI6602C-Q1SWKR,NSI6611ASC-DSWR,NSI22C11,NSI8230CX-DSWR,NSI6801B-DSPR,NSI6622A-DSPNR,NSD5604NE-DHTSTR,NST86,NIRS31-DSSR,NCA954X,NSI6642C-DSWKR,NSIP8944WX,NSIP8921WX,NSI8262WX,NSI6602NB-DLAMR,NSE11409,NSI8260SX,NCA1042B-Q1SPR,NSI6602VD-Q1SPNR,NIRSP31V,NSI6602VB-DLAR,NSD7310-Q1DHSPR,NSD1624-Q1SPKR,NSI6602VB-Q1SWKR,NSI6602VD-DSPNR,NSI68515UC-DSWR,NST60,NSI6602ND-DSPNR,NCA95XX,NSHT30,NSI6602C-Q1SWR,NSI82XXC,NSL21630,NSI6642B-DSPNR,NSL21631,NSI6602VD-Q1SWR,NSD5604-DHTSPR,NSI22C12,NSIP8920WX,NSIP8943WX,NSI6651ALC-Q1SWR,NSI8240WX,NSD1224LA-DSPR,NSI8261SX,NSD2621B-DQAGR,NSI1042C-DSWR,NSI8263WX,NSI6602A-Q1SPNR,NSI6602NC-DLAR,NSI1303E0X,NSUC1610,NSI83086C,NSI6642D-DSPNR,NSD1015T-DSPR,NCA1051A-Q1SPR,NSI1306M25,NSI1300D25,NSIP8822WX,NSI6642C-DSWR,NSD1025V-Q1HMSR,NSD7312A-Q1HSPR,NPD020N120A-DTOGT,NSI83085C,NSI6602MB-Q1SWTR,NSL21610,NSI6622B-DSWR,NSI6602VC-DSWR,NPD040N120A-DTOGT,NSI6602C-DLAR,NSI8262SX,NSI8241WX,NSIP8822,NSIP8943,NSL21611,NSIP8944,NSI6602A-DSWKR,NCA9534B,NSIP8940,NSIP8820,NSIP8941,NSIP8821,NSIP8942,NSI6602MF-DSWDR,NSI6651ASC-DSWR,NSI68515RC-DSWR,NSI8263SX,NSI1042-DSWR,NSI8241CX-DSWR,NSI6611ASC-Q1SWR,NSIP83086C,NSI8260CX-DSWR,NSI8230WX,NSIP1042,NSI6602B-DLAR,NSI6602VA-Q1SWKR,NSI8220CX-DSPR,NSI1200,NIRS22N1-DSPR,NSI6602VA-DLAR,NSIP8922WX,NSI8038X 系列,NSI8240SX,NSI8242WX,NSIP8921,NSI1042C,NSIP8922,NSI6622A-DSWR,NSI6801MC-DSWVR,NSI6622B-Q1SWKR,NSIP8920,NSI1311,NSI6622B-Q1SWR,NSI6602VB-DSPNR,NSI1312,NSI6602NB-DSWKR,NSI68010B-DSWAR,NCA1051AN,NSI6602B-Q1SWKR,NSI6602MNC-DSWDR,NSD1025V-DHMSR,NSIP8843WX,NCA1145-Q1,NSI6601MC-Q1SWVR,NSIP8820WX,NSIP83086V,NSI1300,NSI1306,NSI6801C-DSPR,NSI8261CX-DSWR,NSIP8940WX,NSI1303,NSI1305,NCA1021S-Q1,NSI6602NA-DSWR,NSIP89XX,NSI1305M25,NSI1200C,NSI6602VC-Q1SPNR,NSI6602ND-DLAMR,NSI6602C-DSPNR,NSD7312-DHSPR,NST1413,NCA1043B-Q1SPKR,NSI8222CX-DSWR,NST1412,NSD8306-Q1HTSXR,NSA3162T,NSD2621A-DQAGR,NSD1025V-DDAER,NSI6602VB-DSWR,NSIP8821WX,NSIP8844WX,NSI6602NC-DSWKR,NSR31XXX,NSI1306M05,NSI1
【产品】内置5V基准电压的高压半桥PWM控制芯片，最高能支持600V电源电压输入
屹晶微电子EG1165是一款高压半桥PWM控制芯片，内部集成5V基准电源、振荡器、误差放大器、限流保护、软启动电路、半桥驱动电路等功能，非常适合高压大功率场合应用，配合外部高压MOS管最高能支持600V电源电压输入。
【产品】内置5.1V基准电压源的推挽、半桥PWM控制芯片EG3525S，具有同步时钟功能
屹晶微电子推出的推挽、半桥PWM控制芯片EG3525S内置了5.1V基准电压源、100Hz～500KHz宽频率振荡器、软启动电路、误差放大器、PWM比较器、欠压封锁电路及功率管输出驱动电路等。EG3525S具有同步时钟功能。
SGM DFAE Training--Charger
型号- SGM41563,SGM41522,SGM41566,SGM7SZ32,SGM41562B,SGM48751,SGM724,SGM41562,SGM41516,SGM41518,SGM41519,SGM41512,SGM41513,SGM4056X,SGM2203,SGM61060,SGM41513D,SGM41510,SGM41513A,SGM41511,SGM61020,SGM722,SGM324,SGM4056,SGM8770,SGM4890,SGM803B,SGM41541,SGM41542,SGM41543,SGM61230,SGM40666AS,SGM358,SGM42505,SGM3752,SGM2225,SGM2036S,SGM7SZ08,SGM7SZ04,SGM41523B,SGM41523C,SGM41600A,SGM41523A,SGM42500,SGM41570,SGM41523D,SGM41573,SGM40561,SGM41527,SGM41528,SGM41523,SGM2593D,SGM41600,SGM41524,SGM8199,SGM41526,SGM2536
【经验】升压型同步整流DC-DC电源管理芯片EG1164在大功率升压电路中的设计要点
屹晶微电子推出的EG1164是一款高压、大电流的升压型同步整流DC-DC电源管理芯片，该芯片内部集成基准电源、振荡器、误差放大器、逐周限流控制、半桥驱动等功能，非常适合高压大电流场合应用，配合外部高压MOS管最高能支持600V电源电压输出
【产品】30V/1.5A降压DC-DC同步整流芯片EG1131，固定开关频率1.4MHz
屹晶微电子EG1131是一款电流模式降压型DC-DC同步整流芯片，内部集成使能开关控制、基准电压、误差放大器、过热保护、限流保护、功率管等功能。
【产品】带使能控制的宽电压降压DCDC电源芯片EG1198，适合宽电压输入降压使用
屹晶微电子推出的EG1198一款宽电压范围降压型DC-DC电源管理芯片，内部集成功率MOS管、使能开关控制、基准电源、误差放大器、过热保护、限流保护、短路保护等功能，非常适合宽电压输入降压使用。EG1198带使能控制，可以大大节省外围器件，更加适合电池场合使用，具有很高的方案性价比。
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可定制ATD TE Dehumidifier的冷却功率：20~220W；工作电压：12V(DC)/ 220V(AC)；控温精度：≤±0.5℃；尺寸：冷面：20*20~500*300；热面：60*60~540*400(长*宽;单位mm）。
最小起订量： 1 提交需求>
可来图定制热管最薄打扁厚度0.35±0.05mm；笔电D8热管打扁厚度1.0mm，可解40W热量；高功率D10热管可解60W热量。
最小起订量： 10000 提交需求>
授权代理品牌：集成电路
授权代理品牌：分立元件
授权代理品牌：接插件及结构件
授权代理品牌：部件、组件及配件
授权代理品牌：电源及模块
授权代理品牌：电子材料
授权代理品牌：仪器仪表及测试配组件
授权代理品牌：电工工具及材料
授权代理品牌：机械电子元件
授权代理品牌：加工与定制
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