【产品】CD4046低功耗数字锁相环电路，3V~14V的供电电压范围，70uW低功耗

时间： 2019-07-31 来源：上海国芯

技术问答

上海国芯推出的CD4046是一款低功耗数字锁相环电路。其中包含一个低压的线性压控振荡器（VCO），一个源跟随器，一个齐纳稳压管，和两个相位比较器。两个相位比较器有一个共同的信号输入，和一个共同的比较端输入。输入信号端需输入一定电压幅值的大电压信号，小信号则需经放大后再输入。

相位比较器Ⅰ是一个数字的异或门电路，提供一个数字误差信号输出，并与VCO输出频率保持 90 度相移。由相位比较器Ⅰ的两个输入（占空比均为 50%）进行比较，VCO频率接近输入信号频率时，可能会锁定。

相位比较器Ⅱ是一个由信号的上升沿控制的数字存储网络。它对输入信号占空比的要求不高，允许输入非对称波形，它具有很宽的捕捉频率范围，而且不会锁定在输入信号的谐波。它提供数字误差信号和锁定信号（相位脉冲）两种输出。当达到锁定时，在相位比较器Ⅱ的两个输人信号之间保持 0°相移。

线性压控振荡器VCO，能输出一个由电压控制的频率的数字信号。必须外接电容C1和电阻R1作为充放电元件。电容接pin C1A，C1B，电阻接R1和R2。源跟随器输出是缓冲VCOIN，也是解调输出，一般外接10K或更大的电阻到地。

INHIBIT脚是一个控制脚，当其为高电平时，则禁止VCO压控振荡器和源跟随器工作，已达到最小功耗。另外若有需要，齐纳二极管zener可以作为额外的电源供电使用。

图1 CD4046低功耗数字锁相环电路内部框图和外部电路连接

图2 CD4046低功耗数字锁相环电路引脚图

图3　CD4046低功耗数字锁相环电路极限参数

主要特点：

较宽的供电电压范围3V~14V；

低功耗70uW(typ.)；

VCO频率宽高至1.3MHz；

VCO线性度好。

应用：

FM调制和解调；

频率合成；

频率鉴别；

数据同步和控制；

电压频率转换；

音调解码；

FSK调制；

电机转速控制。

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本文由花木转载自上海国芯，原文标题为:CD4046 低功耗数字锁相环电路数据手册，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。

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Product Selection Guide

描述- Skyworks Solutions, Inc. is empowering the wireless revolution, connecting everyone and everything, all the time. Our highly innovative analog and mixed signal semiconductors are connecting people, places, and things spanning a number of new and previously unimagined applications within the automotive, broadband, cellular infrastructure, connected home, industrial, medical,etc.

型号- AAT4712,AAT3620,SKY67101-396LF,SKY12208-478LF,TT4P3-2120P2-6020,SMV1255-079LF,SKY13437-11,SKY65094-360LF,DME2850-255,SKY65364-11,SKY66013-11,TT4P2-1013P2-2020,AAT4710,SKY13454,CLA4609-000,CLA4609-240,DMF2185-000,DMJ2209-253,MAFR-000632-000001,AAT2783,AAT2782,AAT1451,APD0520-219,SKY13388-465LF,AAT1219,SMV2026-040LF,SE2605L,AAT1217,AS227-000,PART,SKY77554-21,AAT3369-1,DMJ2209-000,SKY65376-11,DMJ3944-000,SMV1255-011LF,AAT2552,MAFR-000533-000001,SKY65099-360LF,SKY77576-11,SMV2203-040LF,TT3P3-1227.6P1-1030,SMP1330-005LF,SKY77761-11,SKY77761-12,SKY13529-11,CLA4608-085LF,AAT2557,SMV1255 SERIES,AAT2556,SKY13398-000,MAFR-000629-000001,SMV1263-079LF,CDF7621-000,SMV1276-079LF,AS211-334,DMJ2990-254,SKY72301-22,SMV1236 SERIES,APD0505-240,APD0505-000,SMV1771,SKY13473-12-569LF,MAFR-000613-000001,DMF2184-223,SMV2025-079LF,SKY13418-485LF,SMV1494 SERIES,SKY13384-350LF,DME2850-000,DME2333-220,DMJ2208-223,DSG9500-000,SKY13488,SKY13373-460LF,DMF2185-251,SMV1251-040LF,SKY13484,DME2333-230,SKY66115-11,APD0520-240,SMV1247-079LF,APD0520-000,SKY73420-11,SMS7630,SKY73075-21,SMV1408-210,SKY65534-11,AAT3663,CLA4603-085LF,SMV1247 SERIES,SKY12211-478LF,CLA4608-240,CLA4608-000,SKY13498,SKY85004-11,SKY73087-11,SKY13492,CDC7630-000,SKY65708-11,TT6P4-1080P4-7015,SMV1408-219,DMF2184-000,SMS7621,DMF2837-221,AAT3673,AAT3672,SMV1408-203,DME2333-000,SKY65048-360LF,SKY65386-11,DME2850-225,SE2609L,APD0505-219,DME2333-250,SKY73422-11,SKY73101-11,SKY19001-001,DMJ2990-000,TT6P3-0836T-2520,SKY73078-459LF,TT3P3-1575.42P2-1030,APD0505-210,DMF2848-000,DMF2184-253,AAT3683,AAT3681,SC00560912,SKY13377-313LF,TT3P3-2450P1-1445,CLA4611-085LF,SKY77751-12,TT6P3-0745.3P3-1920,APD0505-203,SKY65352-11,DME2851-235,AAT3215,AAT1278,AAT3698,SC50004450,SMPA1302-079LF,DMJ2209-223,AAT3696,AAT1277,AAT1274,AAT3693,AAT1272,AAT3692,AS218-000,AAT3218,DMF2837-000,DMJ2777-220,DMJ3937-000,DMF2183-223,TT6P6-0750P0-5017,SKY13309-370LF,AAT3691,AAT1270,AAT1271,SKY65374-11,DME2851-000,SKY12236-11,SKY65170-21,DMJ2990-224,SMV1145,SKY73120,SKY77629-51,SKY13290-099,SKY12340-364LF,DMF2848-225,SKY67151-396LF,SMV1770-040LF,SMV1494-219,SMV1263 SERIES,TT6P6-1000P5-8530,DMJ2312-000,SE2537L,DMF2454-000,TT6P4-0722P4-4817,DME3946-000,TT6P5-1950P3-6040,AAT1282,SMV1763-040LF,TT6P6-2500P3-3635,TT6P3-0881F-2520,SKY13355-374LF,AAT3237,AAT3236,SMP1321 SERIES,DMJ2455-224,DMF2848-235,AAT3604B,DMJ2823-220,SMP1334-084LF,DMF2454-234,SE2621L,SKY77781-11,AAT3238,SKY85303-11,SC00820710,TT6P3-0860T-2020,DMF2183-000,CLA4607-240,AAT2601A,SKY13272-340LF,AAT2601B,SE2620T,CLA4607-000,SE2600S,DMJ2312-225,SKY66101-11,SKY77701,SKY65344-21,DMJ2823-250,AAT3242,AAT3603A,SKY77702,SKY77705,SMS3927,SKY66005-11,SMS3923,SKY73085-11,SKY77778-51,SMS3924,DMF2183-253,SMS3926,SMS3928-099,AAT3258,SKY13374-397LF,SMV1130,TT3P2-1068P0-3507,DMJ2823-000,SKY65704-22,SE2623L,SMS3922,SMV1494-203,SMV2204-040LF,SMV1494-210,SMS7630 SERIES,SE2593A20,SKY77778-61,SMP1345-087LF,SKYFR-000812,SMV1263-040LF,SMV1129,SMP1302-085LF,SKY65378-11,SKY77765,SMV2025-040LF,SKY77764,SKY65601-477LF,PD4W09-59LF,SKY77767,AAT2402M,SMV1493-219,SKY77762,DME3939-257,AAT2402S,SKY12407-321LF,SKY77769,SKY77527,SKY77768,SKY77529,DMJ2208-253,SKY65903-11,SKY73121-11,AAT3103-2,SMP1353-099,SMS3927 SERIES,AAT3103-4,MAFR-000618-000001,SKYFR-000827,SE2601T,SKY13445-368LF,SKY77753,SE5012T,SKY77752,SMP1304 SERIES,SKY77758,DME3939-000,SMV1771-040LF,SC02201518,CLA4606-240,DMF2828-000,SKY67100-396LF,CLA4606-000,DMJ2208-000,SMV1234-079LF,SMV1213-040LF,SC04701518,TT6P5-1960P0-6025,SKY85712-11,SKY13431-374LF,AAT2403A,APD0520-203,SKY77742,SKY85702-11,SKY77741,MAFR-000514-000001,DMF2454-224,DMF2828-232,SKY65366-11,SE2604L,MAFR-000667-000001,MAFR-000662-000001,SMV1233-079LF,SKY13322-375LF,SKY13370-374LF,MAFR-000645-000001,SMV1494-240,SKY85712-21,SKYFR-000848,SKY16406-381LF,SMV1470-004LF,SKY13320-374LF,APD0520-210,SMP1320 SERIES,SKY77731,SMV1493-203,SKY77733,SKY77736,SKY13298-360LF,SKY77735,SKY13405-490LF,SKY65388-11,SMS7621-005LF,SE2603L,SKY77737,DMF2828-222,SKY13489-001,SMV1234-011LF,SKY66111-11,MAFR-000569-000001,SKYFR-000855,SMP1302-087LF,SMV1493-210,SKY65370-11,SKY12347-362LF,DMJ2825-000,SKY77562,SMP1307-027LF,SMV1235-079LF,SMV1275-079LF,APD1510-219,SE2577L,SKY13385-460LF,SMV1405-203,MAFR-000583-000001,SMP1320-040LF,AAT2608A,SKY65713-11,SKY85203-11,DMF3942-000,AAT3183,TT6P4-2158P2-1422,MAFR-000630-000001,SKY77558,SC99906068,DME2829-222,SE2576L,DMF2182-253,SMV1405-210,SMV1705-040LF,SKY77559,SKY13392-359LF,SKY65369-11,SKY77754-11,SMV1405-219,SKY73208-11,SMVA1470-004LF,AAT4285,SMV1253-004LF,DMJ3947-000,AAT3194,DME2957-220,SMV2202-040LF,SKY12210-478LF,CDB7620-000,DME2829-252,DMJ2825-220,DMF2182-000,SMV1270-079LF,SKY77549,DMJ2768-255,MAFR-000668-000001,TT2P3-P,AAT4292,SKY85706-11,APD0805-203,SMV1493-240,TT4P2-0915P2-2620,TT6P3-2140P2-6011,SKY12232-21,CDB7619-000,DMJ2825-230,SKY77771,DME2829-000,SKY77773,SKY13306-313LF,SKY13568-11,DMJ2768-000,APD1510-203,SE5516A,APD1510-210,TT3P4-0895.5P2-3926,DME2957-000,TT4P4-1880P0-6216,DMF2182-223,SKY65404-31,DMJ2839-221,SMV1405-240,SMV1405-000,SMP1302-099

选型指南 - SKYWORKS - 11/15 PDF 英文下载

什么是PLL频率合成器?

频率合成的方法主要有三种:直接频率合成(DFS)，锁相环频率合成(PLL)以及直接数字频率合成(DDS)。这三种频率合成方法各有特点，传统的PLL在低相位噪声和低杂散方面有其他两种方法所无法比拟的优点，但是它的缺点就是锁定时间较长，所以设计具有快速锁定功能的锁相环频率合成器是当今通信领域的一大挑战。锁相环频率合成器的应用使得无线终端可在基站很小的频率间隔内快速地切换频率和相位，满足频率分辨率高、频率转换时间短、转换时信号相位连续、调频电路频率稳定性高及相对带宽较宽的要求，实现了无线终端在不同基站之间的快速漫游切换

技术问答发布时间 : 2019-12-09

High Reliability Space RF Product Catalog

型号- TDGB010CL2,TDGB010BL2,PE9354,TDSW0602T,TDGB010AL2,PE9311,PE94302,PE95420,TDLM025100,PE95421,PE9309,PE97640,PE99155,PE99153,PE97240,PE99151,TDGB010,PE9304,PE9601,TDLM06100,PE9312,PE9313,PE9701

选型指南 - TELEDYNE DEFENSE ELECTRONICS - 2020/12/2 PDF 英文下载

Product Selection Guide LT1001

选型指南 - LINEAR TECHNOLOGY - December 12th 2017 PDF 英文下载

扬州国芯（Gcore）电源管理IC/运放/比较器/逻辑电路/音频电路/触摸IC选型指南

目录- AC-DC转换开关电源产品系列 DC-DC转换器产品系列线性稳压器产品系列音频功率放大器IC系列（AB类）运算放大器/比较器时基电路电话机电路触摸芯片专用电路 2018新品

型号- DS1302,LM386,XL1410,GC4054,GC4056,L4960,LM3915,LM3914,GC386,LMV358,NE556,NE555,GC2273,LV358,LM358S,KA7500,LM311,LTC4056,L293,L298,GC4560,TDA2030,FT232BL,LTC4054,GC2269,KA2284,GC2263,MX618,GC13700,U211B,LM78MXX,TL072,TDA2003,TDA2005,LM1084,LM1085,KA3843,KA3842,OB25XX,GC78MXX,GC6283,GC6282,LM258,GC9034,GC1302,GC4536,TL082,GC4538,TL084,GC1025A,GC8054,GC2907,LMV321,GC8128L,LM2907,GC4532,GC4535,HT4560,LM34119,KA2411,SC4001,LM358,GC4001,GC34119,L298N,OB2535,GC1410,OB2536,OB2538,GC2068,CD6283,SGM8054,TL062,CA3140,GC232BL,CD6282,OB2532,LM13700,LV321,LM324,GC518,APA2068,OB2263,SG3526,SG3524,SG3525,OB2269,MOS555,TS08,LM331,TS04,OP07C,OB2273,7555,TS01,74HC922,74HC923,AM1025,GC2284,MC34018

选型指南 - 扬州国芯 PDF 中文下载