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CD74HC7046AME4 PDF预览

CD74HC7046AME4

更新时间: 2024-01-18 10:43:06
品牌 Logo 应用领域
德州仪器 - TI 信号电路锁相环或频率合成电路光电二极管
页数 文件大小 规格书
26页 301K
描述
Phase-Locked Loop with VCO and Lock Detector

CD74HC7046AME4 技术参数

是否无铅:不含铅是否Rohs认证:符合
生命周期:Obsolete零件包装代码:SOIC
包装说明:SOP, SOP16,.25针数:16
Reach Compliance Code:unknownHTS代码:8542.39.00.01
风险等级:5.45Is Samacsys:N
模拟集成电路 - 其他类型:PHASE LOCKED LOOPJESD-30 代码:R-PDSO-G16
JESD-609代码:e4长度:9.9 mm
湿度敏感等级:1功能数量:1
端子数量:16最高工作温度:125 °C
最低工作温度:-55 °C封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装等效代码:SOP16,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):260电源:2/6 V
认证状态:Not Qualified座面最大高度:1.75 mm
子类别:PLL or Frequency Synthesis Circuits最大供电电压 (Vsup):6 V
最小供电电压 (Vsup):2 V标称供电电压 (Vsup):3 V
表面贴装:YES技术:CMOS
温度等级:MILITARY端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:3.9 mmBase Number Matches:1

CD74HC7046AME4 数据手册

 浏览型号CD74HC7046AME4的Datasheet PDF文件第17页浏览型号CD74HC7046AME4的Datasheet PDF文件第18页浏览型号CD74HC7046AME4的Datasheet PDF文件第19页浏览型号CD74HC7046AME4的Datasheet PDF文件第21页浏览型号CD74HC7046AME4的Datasheet PDF文件第22页浏览型号CD74HC7046AME4的Datasheet PDF文件第23页 
CD74HC7046A, CD74HCT7046A  
References should be made to Figures 13 through 23 and  
HC/HCT7046A C  
PD  
Figures 36 through 41 as indicated in the table.  
CHIP SECTION  
HC  
48  
39  
61  
HCT  
50  
UNIT  
pF  
Values of the selected components should be within the fol-  
lowing ranges:  
Comparator 1  
Comparator 2  
VCO  
48  
pF  
R1  
> 3k;  
53  
pF  
R2  
> 3k;  
R1 || R2  
C1  
parallel value > 2.7kΩ;  
greater than 40pF  
Application Information  
This information is a guide for the approximation of values of  
external components to be used with the CD74HC7046A  
and CD74HCT7046A in a phase-lock-loop system.  
PHASE  
SUBJECT  
COMPARATOR  
DESIGN CONSIDERATIONS  
VCO Frequency  
Without Extra Offset  
(R2 = )  
PC1 or PC2  
VCO Frequency Characteristic  
The characteristics of the VCO operation are shown in Figures 13 - 23.  
f
MAX  
f
VCO  
f
2f  
o
L
f
MIN  
V
MIN  
1/2 V  
MAX  
VCOIN  
CC  
FIGURE 46. FREQUENCY CHARACTERISTIC OF VCO OPERATING WITHOUT  
OFFSET: f = CENTER FREQUENCY: 2f = FREQUENCY LOCK RANGE  
o
L
PC1  
PC2  
Selection of R1 and C1  
Given f , determine the values of R1 and C1 using Figures 13 - 17.  
o
Given f  
MAX  
calculate f as f /2 and determine the values of R1 and C1 using Figures 13 - 17.  
MAX  
o
2(VCO  
)
IN  
To obtain 2f : 2f ≈  
where 0.9V < VCO < V  
IN CC  
- 0.9V is the range of VCO  
IN  
L
L
R1C1  
VCO Frequency Characteristic  
The characteristics of the VCO operation are shown in Figures 29 - 32.  
VCO Frequency with PC1 or PC2  
Extra Offset  
(R2 > 3k)  
f
MAX  
f
VCO  
2f  
f
L
o
f
MIN  
V
MIN  
1/2 V  
MAX  
VCOIN  
CC  
FIGURE 47. FREQUENCY CHARACTERISTIC OF VCO OPERATING WITH OFFSET:  
= CENTER FREQUENCY: 2f = FREQUENCY LOCK RANGE  
f
o
L
PC1 or PC2  
Selection of R1, R2 and C1  
Given f and f , offset frequency, f  
Obtain the values of C1 and R2 by using Figures 29 - 32.  
, may be calculated from fMIN f - 1.6 f .  
o
L
MIN  
o
L
Calculate the values of R1 from Figures 33 - 34.  
20  

CD74HC7046AME4 替代型号

型号 品牌 替代类型 描述 数据表
CD74HC7046AMG4 TI

完全替代

Phase-Locked Loop with VCO and Lock Detector
CD74HC7046AMT TI

完全替代

Phase-Locked Loop with VCO and Lock Detector
CD74HC7046AM96 TI

完全替代

Phase-Locked Loop with VCO and Lock Detector

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