[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-560413-105":59,"doc-detail-560413-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"zh","cx20109-frequency-input-amplifier-for-laser-turntables","CX20109用于激光唱机的频率读入放大器","","CX20109是一款用于致密式唱机系统的双极型集成电路，集成频率读出放大器及面向系统控制的信号处理电路，可实现三光点式光学拾音输出的频率读出，并覆盖聚焦、反射镜、统调与EFM比较等关键处理环节。其运算放大器失调电压小，增益与频率特性可通过外接电容电阻设定；内藏反射镜输出电路与稳定基准电源，工作动作稳定，同时支持与CX20108（SSP）、CX23020（CLV伺服机构/EFM-PLL）等组合构成系统。",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/cx20109-frequency-input-amplifier-for-laser-turntables/560413/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/cx20109-frequency-input-amplifier-for-laser-turntables/560413.png","ImageObject",300,407,{"name":92,"@type":93},"Taylor Morgan","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-17","2026-10-12",true,{"@type":102,"interactionType":103,"userInteractionCount":19},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"CX20109的主要用途是什么？","Question",{"text":112,"@type":113},"CX20109用于致密式唱机系统，集成频率读出放大器以及聚焦、反射镜、统调和EFM比较等信号处理电路，用于三光点式光学拾音的频率读出。","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"CX20109的增益与频率特性如何设定？",{"text":117,"@type":113},"运算放大器的增益与频率特性可通过外接的电容和电阻来设定，并能适用于各种光学系统。",{"name":119,"@type":110,"acceptedAnswer":120},"在聚焦错误放大器中需要如何处理EFM成分遗漏？",{"text":121,"@type":113},"为避免聚焦输出中EFM成分的遗漏，需要设置C₂、C₃两只电容器进行补偿。","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},560413,1791850793,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":19,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":29,"language":139,"language_code":63,"site_id":62,"html_lang":140,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145},1099523885336,"https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c","# CX20109用于激光唱机的频率读入放大器\n\n功能CX20109是为了用于致密式唱机系统而研制出的双极型集成电路。它含有用作三光点式光学拾音输出的频率读出放大器，以及系统控制所需的聚焦、反射镜、统调与EFM比较仪等方面的信号处理电路。  \n特点1.运算放大器的失调电压较小，其增益与频率特性能靠加接的电容、电阻器来加以设定，并能适用于各种光学系统。  \n2.内藏有反射镜输出电路，具有高速存取功能。  \n3.内藏有稳定基准电源，动作非常稳定。  \n4.容易构成与CX20108(SSP)、  \nCX23020(CLV伺服机构/EFM—PLL)等组合在一起的系统。  \n5.低功耗(110毫瓦)  \n推荐电源电压  \nV..=+4.0～7.5V,标准值为+5.0V;VBE=-7.5～-4.0V,标准值为-5.0V;  \n方框图  \n外形尺寸图  \n24脚MFP封装  \n## 工作说明\n\n### 1.RF放大器\n\n由PD₁、PD₂输入的PIN二极管的电流经(1)、(2)两个RFI—V放大器，分别以60KQ的等效输入电阻作I一V转换。然后经RF选加，放大器加算(A+B+C+D)之后，由RFO输出。该输出端子能作眼图(脉冲编码调制的)检验。  \nRFO输出电压VRFo的低频成分如下：  \nVgRo=-〔(R1+R2)/10KΩ×(VA+VB)  \n=〔(R1+R2)/10KΩ〕×(iPD1+  \niPD2)×60KΩ  \n此外，还需使用C1、R3作为EFM眼图补偿，为了适应系统，尚必须经过实验来确定其数值。  \n### 2.聚焦错误放大器\n\nRF!一鱼人警(1!  \n管脚排列图  \nFOK  \nRF1  \nRF一  \nPD1  \nA GND  \nE  \nEFB  \nFFB  \nGND  \nRF I—V放大器(1)输出(B+D)与RFI一V放大器(2)输出(A+C)之差值结果可输出A+C-B-C信号。  \n当R4=R5时，FE输出电压(低频)如下：  \nVFE=(R4/15KΩ)×(VA-VB)  \n=(R4/15KΩ)×(iPD2-  \niPD1)×60K  \n为避免聚焦输出中EFM成分的遗漏，需设置C₂、C₃两只电容器。    ,  \n### 3.统调错误放大器\n\n在E、F处输入的侧光点PIN二极管的电流经E、FI一V放大器，分别依靠R₆、R₇作I—V转换，其关系如下：  \nVb=iER₆  \nVg=iFR,  \n此外，利用统调错误放大器能获得因E、FI—V放大器之差值(E—F)而致的输出，统调错误放大器的增益为11(21dB)。  \nVTB=(VE-VF)×11  \n=(ig-ip)×Rg×11  \n为了防止向统调错误放大器输出处泄漏EFM成分，必须加接C₄、C₆电容器。  \n极限参数(Ta=25℃)  \n\n| 参数名称   | 符   | 号   | 参   数   值   |  | 单    位   |\n| --- | --- | --- | --- | --- | --- |\n| 电源电压   | Vcc-Vg   |  | 17   |  | V   |\n| 工作温度   | Tome   |  | -20～+75   |  | ·C   |\n| 保存温度   | Tstg   |  | -55～+150   |  | ·C   |\n| 允许功耗   | Pp   |  | 670   |  | mw   |\n\n\n| 管脚号   | 符 号   | I/0   | 能  \u003Cbr>功   | 直 流 电 压   |\n| --- | --- | --- | --- | --- |\n| 1   | FOK   | 0   | 聚焦；伺服机构许可的输出，比较电路输出“H”为有效的连接负  \u003Cbr>载电阻(PNP开路集电极)   | OV   |\n| 2   | RFI   | I   | RF迭加放大器的输出信号经C耦合输入   | OV   |\n| 3   | RFO   | 0   | RF迭加放大器输出  \u003Cbr>EYE图形测试点   | VRFO   |\n| 4   | RF   | I   | RF迭加放大器反向输入  \u003Cbr>③一④作反馈CR连接   | OV   |\n| 5   | PDI   | I   | RF I一V放大器(1)反向输入  \u003Cbr>连接PIN二极管B+D~¹的电流输入   | OV   |\n| 6   | PD2   | I   | RE I一V放大器(2)反向输人  \u003Cbr>连接PIN三极管A+C-1的电流输入   | OV   |\n| 7   | AGND   | 一   | 小信号樓拟系统接地   | OV   |\n| 8   | E   | I   | EI一V放大器反向输入  \u003Cbr>连接PIN二极管E-¹的电源输入   | 0V   |\n| 9   | EFB   | 0   | EIV放大器输出  \u003Cbr>⑧一⑨作反馈CR连接   | oV   |\n| 10   | FFB   | 0   | F I一V放大器输出  \u003Cbr>⑩一⑪作反馈CR连接   | OV   |\n| 11   | F   | I   | F I一V放大器皮向输人  \u003Cbr>连接PIN二极管F-的电流输入   | 0V   |\n| 12   | GND   | 一   | GND   | OV   |\n| 13   | Vgg   | 一   | 负电源   | -5V   |\n| 14   | FE田   | 工   | 聚焦错误放大器非反向输入  \u003Cbr>低通CR连接   | OV   |\n| 15   | FEO   | 工   | 聚焦错误放大器反向输入   | OV   |\n| 16   | FE   | 0   | 聚焦错误放大器输出  \u003Cbr>⑮一⑩作反馈CR连接   | VFBO   |\n| 17   | JE   | 0   | 统调错误放大器输出   | VTEo   |\n| 18   | MIRR   | 0   | 反射镜输出比较电路输出(“H”为有效的)  \u003Cbr>负载电阻连接(PNP开路集电极)   | OV   |\n| 19   | I  \u003Cbr>HC   |  | 错误同步电容器连接端子   | —2V   |\n| 20   | EFM   | 0   | EFM输出比较电路输出   | 4.1V  \u003Cbr>(OPEN)   |\n| 21   | VSEL   | I   | 自动不平衡控制放大器的基准输入电平设定端子，  \u003Cbr>±5V电源时为Vcc,+10V电源时接地   | +5V   |\n| 22  \u003Cbr>23  \u003Cbr>24   | ASY  \u003Cbr>DVcc  \u003Cbr>Vcc   | I  \u003Cbr>一   | 自动不平衡控制输入  \u003Cbr>EFM比较电路正电源  \u003Cbr>正电源   | 一  \u003Cbr>+5V  \u003Cbr>+5V   |\n\n●直流电位除去20管脚之外均根据标准测试电路  \n◆一1光探测器式样。  \n电特性(Ta=25℃ DVcc=Vcc=5V VEE=5V)  \n\n| 参 数 名 称   |  |  | 符 号   | 输 入 输 出 条 件   | 参  数  值   |  |  | 单 位   |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- |\n|  |  |  |  |  | 最小   |  典 型   |  最 大   |  |\n| 电源电压   |  | +5V  \u003Cbr>+5V  \u003Cbr>-5V   | DIcc  \u003Cbr>Jcc  \u003Cbr>IEE   |  | 2.5  \u003Cbr>3.8  \u003Cbr>7.0   | 4.5  \u003Cbr>6.5  \u003Cbr>11.0   | 6.5  \u003Cbr>8.9  \u003Cbr>16.0   | I  \u003Cbr>mA  \u003Cbr>mA  \u003Cbr>mA   |\n| RF放大器   | 失调电压  \u003Cbr>噪声电压  \u003Cbr>电压增益  \u003Cbr>频率特性  \u003Cbr>最大输出  \u003Cbr>振幅   |  | VRPO  \u003Cbr>NVRF  \u003Cbr>GRF  \u003Cbr>FgP  \u003Cbr>VRPPP₁  \u003Cbr>VRFPP₂   | 验入由SIG-1,正弦波Vi=24mVp-p  \u003Cbr>f=200KHz输出正弦波  \u003Cbr>输入由SIG-1,正弦波Vi=24mVP-P,  \u003Cbr>f=2MHz输出正弦波  \u003Cbr>输入Ve=0.12V(直流)  \u003Cbr>输入Vc=-0.12V(直流)   | -13  \u003Cbr>一  \u003Cbr>35.3  \u003Cbr>-8.2  \u003Cbr>2.7  \u003Cbr>一   | 15  \u003Cbr>1.0  \u003Cbr>36.3  \u003Cbr>-4.2  \u003Cbr>3.4  \u003Cbr>-2.8   | 43  \u003Cbr>4.5  \u003Cbr>37.3  \u003Cbr>0.0  \u003Cbr>-1,8   | mV.  \u003Cbr>■Vrm,  \u003Cbr>dB  \u003Cbr>dB  \u003Cbr>V  \u003Cbr>V   |\n| 聚焦错误放大器   | 失调电压  \u003Cbr>噪声电压  \u003Cbr>电压增益1  \u003Cbr>电压增益2  \u003Cbr>频率特性1  \u003Cbr>频率特性2  \u003Cbr>最大输出   |  | VFE  \u003Cbr>NVpg  \u003Cbr>GPBI  \u003Cbr>Gpg:  \u003Cbr>FrB1  \u003Cbr>Frg:  \u003Cbr>VEPP1  \u003Cbr>VPBPP:   | 输入由SIG-1,正弦波  \u003Cbr>Vi=24mVP.P,f=25KHz输出为","cbCaidfajW9Hlh9D","https://ap.wps.com/l/cbCaidfajW9Hlh9D","pdf",342141,"Chinese","en","# 工作说明\n## RF放大器\n## 聚焦错误放大器\n## 统调错误放大器\n# 极限参数(Ta=25℃)\n## 管脚号与直流电压\n# 电特性(Ta=25℃ DVcc=Vcc=5V VEE=5V)","[{\"question\":\"CX20109的主要用途是什么？\",\"answer\":\"CX20109用于致密式唱机系统，集成频率读出放大器以及聚焦、反射镜、统调和EFM比较等信号处理电路，用于三光点式光学拾音的频率读出。\"},{\"question\":\"CX20109的增益与频率特性如何设定？\",\"answer\":\"运算放大器的增益与频率特性可通过外接的电容和电阻来设定，并能适用于各种光学系统。\"},{\"question\":\"在聚焦错误放大器中需要如何处理EFM成分遗漏？\",\"answer\":\"为避免聚焦输出中EFM成分的遗漏，需要设置C₂、C₃两只电容器进行补偿。\"}]","CX20109用于激光唱机的频率读入放大器 | PDF",1791802909,15]