参数资料
型号: SM3E-19.44M
厂商: Connor-Winfield
文件页数: 26/36页
文件大小: 0K
描述: IC MOD TIMING 19.440MHZ STRAT 3E
标准包装: 1
系列: SM3
类型: 定时模块,系统时钟
PLL:
主要目的: 以太网,ADM,DSLAM,SONET/SDH,Stratum,TDM
输入: LVCMOS
输出: LVCMOS
电路数: 1
比率 - 输入:输出: 8:3
差分 - 输入:输出: 无/无
频率 - 最大: 19.44MHz
电源电压: 3.135 V ~ 3.465 V
工作温度: 0°C ~ 70°C
安装类型: 通孔
封装/外壳: 32-DIP 模块
包装: 管件
其它名称: CW643
SM3E 19.44M
SM3E19.44M
SM3E Data Sheet #:
TM054
Page 32 of 36 Rev: 04 Date: 01/26/11
Copyright 2011 The Connor-Winfield Corp. All Rights Reserved
Specifications subject to change without notice
Required External Components
1. Placeseriesresistors(33ohms)onallreferenceinputs(Pins4-7&15-18).
2. Placeseriesresistors(33ohms)onSPI_INandSPI_CLKinputs(Pins25,26).
3. Placeone.01uFandone47-100uFcapacitorattheinputpowerpin(Pin27).
4. One4.7uF(25V)capacitorisrequiredattheVPPpin(Pin14).
5. One4.7uF(25V)capacitorisrequiredattheVPNpin(Pin19).
PCB Layout Recommendations
1. Orientmodulesoairflowisparallelalongtheheaderstrips(pins).
2. Placede-couplingand/orfiltercomponentsasclosetomodulepinsaspossible.
3. DonotplaceanycomponentsdirectlybeneaththemoduleonthetopsideofthehostPCB.
4. Ensurethatonlycleanandwell-regulatedpowerissuppliedtothemodule.
5. Isolatepowerandgroundinputstothemodulefromnoisysources.
6. Providepowerandgroundconnectionsthrougha0.050”widetrace(minimum)using1-oz.Cuorequivalentcopperfeature
(i.e.internalplane,copperareafill,etc.).
7. Keepmodulesignalsawayfromsensitiveornoisyanaloganddigitalcircuitry.
8. Avoidsplitgroundplanesashigh-frequencyreturncurrentsmaybeaffected.
9. Allowextraspacingbetweentracesofhigh-frequencyinputsandoutputs.
10. Keepalltracesasshortaspossible-avoidmeanderingtracepaths.
11. AvoidroutingsignalsdirectlybeneaththemoduleonthetopsideofthehostPCB.
12. Ifpossible,provideacopperareadirectlybeneaththemoduleonthetopsideofthehostPCB.Connectthiscopperareato
ground.
13. ItisrecommendedthattheconnectionsoftheJTAG,VPPandVPNpinsberoutedtopads,preferablyinaSILpatternasshown
inFigure12below.Itisrecommendedtouse0.1”centertocenterspacing.
Optional Socket Mounting Recommendations
MatingsocketsmaybeusedifpermanentinstallationoftheSM3moduleisnotdesired.Twopossiblesourcesforthesesockets
include:
1.
Samtec,“LowProfileSocketStrips”,SLSeries,PNSL-116-G-19.(http://www.samtec.com/)
2.
Mill-Max,“Single-In-LineSockets”,315Series,PN315-xx-116-41-001.(http://www.mill-max.com/)
TheSM3Erequirestwo16-pinsockets.TheoptionaldualfootprintconfigurationshowninFigure13requiresone14-pinandtwo16-
pinsockets.
Mechanical Specifications continued
1
8
V
PP
V
PN
GND
TCK
TDI
TDO
TM
S
RCK
Figure 12
相关PDF资料
PDF描述
SM802104UMG TR IC SYNTHESIZER 2CH 24-QFN
SM802105UMG TR IC SYNTHESIZER 2CH 24-QFN
SM802108UMG IC SYNTEHSIZER 156.25MHZ 24QFN
SM802109UMG TR IC SYNTHESIZER QUAD 100MHZ 24QFN
SM840002KA TR IC CLK SYNTHESIZER LN 16-TSSOP
相关代理商/技术参数
参数描述
SM3F-100TQ-ACTEL 功能描述:ADAPTER MODULE 100TQFP RoHS:否 类别:编程器,开发系统 >> 适配器 系列:* 标准包装:96 系列:- 模块/板类型:TQFP 插座模块 适用于相关产品:-
SM3F-100VQ-ACT 制造商:Microsemi Corporation 功能描述:ACTEL VQ100 ADAPTER MODULES
SM3F-100VQ-ACTEL 功能描述:ADAPTER MODULE 100VQFP RoHS:否 类别:编程器,开发系统 >> 适配器 系列:* 标准包装:96 系列:- 模块/板类型:TQFP 插座模块 适用于相关产品:-
SM3F-108QN-ACTEL 功能描述:ADAPTER MODULE 108QFN RoHS:否 类别:编程器,开发系统 >> 适配器 系列:* 标准包装:96 系列:- 模块/板类型:TQFP 插座模块 适用于相关产品:-
SM3F-121CS-ACTEL 功能描述:ADAPTER MODULE 121CSP RoHS:否 类别:编程器,开发系统 >> 适配器 系列:* 标准包装:96 系列:- 模块/板类型:TQFP 插座模块 适用于相关产品:-