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CD74ACT297M96G4 PDF预览

CD74ACT297M96G4

更新时间： 2024-09-16 14:41:23
品牌 Logo 应用领域
德州仪器 - TI 光电二极管逻辑集成电路
页数 文件大小 规格书
17页 450K
描述
SPECIALTY LOGIC CIRCUIT, PDSO16, GREEN, PLASTIC, MS-012AC, SOIC-16

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CD74ACT297M96G4 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：GREEN, PLASTIC, MS-012AC, SOIC-16针数：16
Reach Compliance Code：unknownHTS代码：8542.39.00.01
风险等级：5.67Is Samacsys：N
系列：ACTJESD-30 代码：R-PDSO-G16
JESD-609代码：e4长度：9.9 mm
逻辑集成电路类型：LOGIC CIRCUIT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
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1.75 mm最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：4.5 V标称供电电压 (Vsup)：5 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

CD74ACT297M96G4 数据手册

 浏览型号CD74ACT297M96G4的Datasheet PDF文件第2页浏览型号CD74ACT297M96G4的Datasheet PDF文件第3页浏览型号CD74ACT297M96G4的Datasheet PDF文件第4页浏览型号CD74ACT297M96G4的Datasheet PDF文件第5页浏览型号CD74ACT297M96G4的Datasheet PDF文件第6页浏览型号CD74ACT297M96G4的Datasheet PDF文件第7页 
CD74ACT297  
DIGITAL PHASE-LOCKED LOOP  
SCHS297D – AUGUST 1998 – REVISED JUNE 2002  
M PACKAGE  
(TOP VIEW)  
Speed of Bipolar FCT, AS, and S, With  
Significantly Reduced Power Consumption  
Digital Design Avoids Analog  
Compensation Errors  
B
A
V
CC  
C
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
Easily Cascadable for Higher-Order Loops  
ENCTR  
K CLK  
I/D CLK  
D/U  
D
φA2  
Useful Frequency Range  
– DC to 110 MHz Typical (K CLK)  
– DC to 70 MHz Typical (I/D CLK)  
ECPD OUT  
XORPD OUT  
I/D OUT  
GND  
10 φB  
φA1  
Dynamically Variable Bandwidth  
Very Narrow Bandwidth Attainable  
Power-On Reset  
9
Output Capability  
– Standard: XORPD OUT, ECPD OUT  
– Bus Driver: I/D OUT  
SCR Latch-Up-Resistant CMOS Process  
and Circuit Design  
Balanced Propagation Delays  
ESD Protection Exceeds 2000 V Per  
MIL-STD-883, Method 3015  
description/ordering information  
The CD74ACT297 provides a simple, cost-effective solution to high-accuracy, digital, phase-locked-loop  
applications. This device contains all the necessary circuits, with the exception of the divide-by-N counter, to  
build first-order phase-locked loops as shown in Figure 1.  
Both exclusive-OR phase detectors (XORPDs) and edge-controlled (ECPD) phase detectors are provided for  
maximum flexibility.  
Proper partitioning of the loop function, with many of the building blocks external to the package, makes it easy  
for the designer to incorporate ripple cancellation or to cascade to higher-order phase-locked loops.  
The length of the up/down K counter is digitally programmable according to the K-counter function table. With  
A, B, C, and D all low, the K counter is disabled. With A high and B, C, and D low, the K counter is only three  
stages long, which widens the bandwidth, or capture range, and shortens the lock time of the loop. When A,  
B, C, and D are programmed high, the K counter becomes 17 stages long, which narrows the bandwidth, or  
capture range, and lengthens the lock time. Real-time control of loop bandwidth by manipulating the  
A-through-D inputs can maximize the overall performance of the digital phase-locked loop.  
ORDERING INFORMATION  
ORDERABLE  
PART NUMBER  
TOP-SIDE  
MARKING  
†
PACKAGE  
T
A
Tube  
CD74ACT297M  
–55°C to 125°C  
SOIC – M  
ACT297M  
Tape and reel  
CD74ACT297M96  
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design  
guidelines are available at www.ti.com/sc/package.  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
Copyright 2002, Texas Instruments Incorporated  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...17

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