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MT8940AE PDF预览

MT8940AE

更新时间: 2024-02-20 12:07:08
品牌 Logo 应用领域
加拿大卓联 - ZARLINK 电信光电二极管电信集成电路
页数 文件大小 规格书
19页 492K
描述
Telecom Circuit, 1-Func, CMOS, PDIP24, PLASTIC, MS-011AA, DIP-24

MT8940AE 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
包装说明:DIP, DIP24,.6Reach Compliance Code:compliant
HTS代码:8542.39.00.01风险等级:5.2
Is Samacsys:NJESD-30 代码:R-PDIP-T24
JESD-609代码:e0长度:30.99 mm
功能数量:1端子数量:24
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:DIP
封装等效代码:DIP24,.6封装形状:RECTANGULAR
封装形式:IN-LINE峰值回流温度(摄氏度):225
电源:5 V认证状态:Not Qualified
座面最大高度:6.35 mm子类别:Other Telecom ICs
最大压摆率:0.1 mA标称供电电压:5 V
表面贴装:NO技术:CMOS
电信集成电路类型:TELECOM CIRCUIT温度等级:INDUSTRIAL
端子面层:Tin/Lead (Sn/Pb)端子形式:THROUGH-HOLE
端子节距:2.54 mm端子位置:DUAL
处于峰值回流温度下的最长时间:30宽度:15.24 mm
Base Number Matches:1

MT8940AE 数据手册

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ISO-CMOS ST-BUSFAMILY  
T1/CEPT Digital Trunk PLL  
MT8940  
ISSUE 8  
March 1997  
Features  
Ordering Information  
Provides T1 clock at 1.544 MHz locked to input  
frame pulse  
MT8940AE  
24 Pin Plastic DIP (600 mil)  
Sources CEPT (30+2) Digital Trunk/ST-BUS  
clock and timing signals locked to internal or  
external 8 kHz signal  
-40°C to +85°C  
TTL compatible logic inputs and outputs  
Uncommitted 2-input NAND gate  
Single 5 volt power supply  
Description  
The MT8940 is a dual digital phase-locked loop  
providing the timing and synchronization signals for  
the T1 or CEPT transmission links and the ST-BUS.  
The first PLL provides the T1 clock (1.544 MHz)  
synchronized to the input frame pulse at 8 kHz. The  
timing signals for the CEPT transmission link and the  
ST-BUS are provided by the second PLL locked to an  
internal or an external 8 kHz frame pulse signal.  
Low power ISO-CMOS technology  
Applications  
Synchronization and timing control for T1  
and CEPT digital trunk transmission links  
ST- BUS clock and frame pulse source  
The MT8940 is fabricated in Zarlink’s ISO-CMOS  
technology.  
CVb  
F0i  
Variable  
DPLL #1  
CV  
Clock  
Control  
2:1 MUX  
C12i  
ENCV  
MS0  
Frame Pulse  
Control  
Mode  
Selection  
Logic  
MS1  
MS2  
F0b  
Input  
Selector  
MS3  
C4b  
4.096 MHz  
Clock  
Control  
C8Kb  
C4o  
ENC4o  
C16i  
DPLL #2  
C2o  
Clock  
Generator  
2.048 MHz  
Clock  
Control  
C2o  
Ai  
Bi  
ENC2o  
Yo  
V
V
RST  
DD  
SS  
Figure 1 - Functional Block Diagram  
3-27  

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