电子工程世界电子工程世界电子工程世界

关键词

搜索

型号

搜索

QT278L-D-4-0.450MHZ

产品描述LVHCMOS Output Clock Oscillator, 0.45MHz Nom, ROHS COMPLIANT, HERMETIC SEALED, CERAMIC, SMD, 4 PIN
产品类别无源元件    振荡器   
文件大小710KB,共7页
制造商Q-TECH Corporation
标准  
下载文档 详细参数 全文预览

QT278L-D-4-0.450MHZ概述

LVHCMOS Output Clock Oscillator, 0.45MHz Nom, ROHS COMPLIANT, HERMETIC SEALED, CERAMIC, SMD, 4 PIN

QT278L-D-4-0.450MHZ规格参数

参数名称属性值
是否无铅不含铅
是否Rohs认证符合
包装说明ROHS COMPLIANT, HERMETIC SEALED, CERAMIC, SMD, 4 PIN
Reach Compliance Codecompliant
其他特性TRISTATE; TUBE; TAPE AND REEL
最长下降时间6 ns
频率调整-机械NO
频率稳定性50%
JESD-609代码e4
制造商序列号QT278L
安装特点SURFACE MOUNT
标称工作频率0.45 MHz
最高工作温度70 °C
最低工作温度
振荡器类型LVHCMOS
输出负载30 pF
物理尺寸13.97mm x 8.89mm x 4.318mm
最长上升时间6 ns
最大供电电压3.63 V
最小供电电压2.97 V
标称供电电压3.3 V
表面贴装YES
最大对称度45/55 %
端子面层Gold (Au) - with Nickel (Ni) barrier
Base Number Matches1

文档预览

下载PDF文档
CLASS B+ PRODUCTS
Q-TECH
CORPORATION
Features
CRYSTAL CLOCK OSCILLATORS
3.3 to 5.0Vdc - 450kHz to 85MHz
• Made in the USA
• ECCN: EAR99
• DFARS 252-225-7014 Compliant:
Electronic Component Exemption
• USML Registration # M17677
• Broad frequency range from 450kHz to 85MHz
• Rugged 4 point mount design for high shock and
vibration
• ACMOS, HCMOS, TTL or LVHCMOS logic
• Tri-State Output Option (D)
• Hermetically sealed ceramic SMD package
• Fundamental and 3rd Overtone designs
• Low phase noise
• Custom designs available
• Q-Tech does not use pure lead or pure tin in its
products
• RoHS compliant
Introduction
The commercial satellite industry has requested that smaller, lighter, less
expensive oscillator products with shorter lead times be made available
for minisatellites, microsatellites, nanosatellites and picosatellites. In
addition some newer satellite programs are being created for short term
space lives and do not need oscillators with the assurance of a 15-20 year
life span.
Q-Tech Corporation, the industry leader in both Class B and Space Rated
hybrid crystal oscillators is pleased to advise that we have created a
special category of product designated as Class B+ for these applications.
See website for link to RAD test data.
We have created these Class B+ products for the discriminate user’s
applications and needs using our small form MIL QPL Class B oscillators.
You, the customer, can now pick and choose the style of clock oscillator
you wish, whether you want a 100kRad (Si) High Dose Tolerant NSC
54ACT3301 (FACT) or a standard Class B qualified die, a swept quartz
space qualified crystal or a Class B cultured quartz crystal and/or a
combination thereof in an oscillator product that otherwise utilizes Class
B qualified passive devices. Q-Tech offers several different screening
options to allow you to choose the screening plan that best suits your
needs.
Q-Tech Corporation does not guarantee the specific radiation hardness
of its Class B+ products but will provide the necessary active device
component traceability to allow you to make your own decision and do
your own testing and evaluation based upon your specific needs and
requirements.
Initially we will begin this product offering in three of our leading
miniature clock oscillator product lines: QT78 (M55310/27, /28 & /30) ,
QT88 (M55310/33 & /34) and QT92 (M55310/37 & /38). Product will
be available in 5.0 and 3.3 Vdc from 450kHz to 85MHZ. Please consult
the factory if you would like to know if this option is available in other
standard Q-Tech Class B product lines or if you have any other specific
oscillator needs that we can help you with.
Q-TECH Corporation - 10150 W. Jefferson Boulevard, Culver City 90232 - Tel: 310-836-7900 - Fax: 310-836-2157 - www.q-t ec h.com
Class B+ Products (Revision -, April 2009)
1
比较器NTE919D输入输出不正常
第一次接触比较器NTE919D啊。。 两个问题: 1、输入问题:我的负向输入端接 双极性三角波,正向接直流电。我改变直流电平,发现三角波也在飘啊,产生了一个直流偏置。。但我拔了芯片,发 ......
抬头 模拟电子
一起玩树莓派3+将树莓派打造成功能强大的路由器
前面我们基于桥接模式实现了随身WiFi的功能,现在我将使用另一种方式来实现,使用openwrt来搭建一个功能更强大的无线路由器。 我参考了网络上https://my.oschina.net/wangandi/blo ......
shenlan1986 嵌入式系统
用 microbit 玩 Basic
今年是Basic语言诞生57周年,许多人的第一次编程是在上世纪70年代到80年代时,用Basic在Commodore PET、Sinclair ZX Spectrum或Apple 2进行的。值得记住的是,创建BASIC语言团队中的玛丽· ......
dcexpert MicroPython开源版块
PIC32MX250F128B请教?
PIC32MX250F128B请教?最近新项目用到这个芯片,需要一些开发资料,哪里可以找到? ...
zhanweiming Microchip MCU
串口发送接收数据乱码
我的单片机串口发送和接收数据的时候老是乱码,波特率的设置我已经试过各种了,还是一样,请问这个问题如何解决呢?...
greenhabit 嵌入式系统
請問一下關於CPEN的字型問題
請教一下各位關於CPEN的字型問題~ 小弟是個剛接觸WINCE的新手,現在想在WINCE 5.0下要畫一條線 小弟的CODE如下 g_nPenStyle 的定義為切換字型,初值為1 當按下按鈕A~則設定g_nPenStyle為1, ......
yydwhy 嵌入式系统

 
EEWorld订阅号

 
EEWorld服务号

 
汽车开发圈

 
机器人开发圈

About Us 关于我们 客户服务 联系方式 器件索引 网站地图 最新更新 手机版

站点相关: 大学堂 TI培训 Datasheet 电子工程 索引文件: 1522  415  266  1369  131  46  27  10  59  18 

器件索引   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

北京市海淀区中关村大街18号B座15层1530室 电话:(010)82350740 邮编:100190

电子工程世界版权所有 京B2-20211791 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号 Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved