5秒后页面跳转
捷配首页

Datasheet > HS9-245RH
HS9-245RH PDF预览

HS9-245RH

更新时间： 2024-01-19 14:42:11
品牌 Logo 应用领域
英特矽尔 - INTERSIL /
页数 文件大小 规格书
8页 113K
描述
Radiation Hardened Triple Line(party-Line) Transmitter

阅读下载

中文翻译

获取价格

HS9-245RH 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：DFP包装说明：DFP, FL14,.3
针数：14Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.9差分输出：YES
驱动器位数：3输入特性：DIFFERENTIAL
接口集成电路类型：LINE DRIVER接口标准：GENERAL PURPOSE
JESD-30 代码：R-CDFP-F14JESD-609代码：e0
功能数量：3端子数量：14
最高工作温度：125 °C最低工作温度：-55 °C
输出特性：OPEN-COLLECTOR封装主体材料：CERAMIC, METAL-SEALED COFIRED
封装代码：DFP封装等效代码：FL14,.3
封装形状：RECTANGULAR封装形式：FLATPACK
峰值回流温度（摄氏度）：NOT APPLICABLE电源：5 V
认证状态：Not Qualified最大接收延迟：
座面最大高度：2.92 mm子类别：Line Driver or Receivers
标称供电电压：5 V表面贴装：YES
技术：BIPOLAR温度等级：MILITARY
端子面层：Tin/Lead (Sn/Pb)端子形式：FLAT
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 APPLICABLE总剂量：200k Rad(Si) V
最大传输延迟：40 ns宽度：6.285 mm

HS9-245RH 数据手册

 浏览型号HS9-245RH的Datasheet PDF文件第2页浏览型号HS9-245RH的Datasheet PDF文件第3页浏览型号HS9-245RH的Datasheet PDF文件第4页浏览型号HS9-245RH的Datasheet PDF文件第6页浏览型号HS9-245RH的Datasheet PDF文件第7页浏览型号HS9-245RH的Datasheet PDF文件第8页 
HS-245RH, HS-246RH, HS-248RH  
The transmission line used with the Intersil HS-245RH  
Transmitter Operation  
series transmitter and receivers can be any ordinary  
shielded, twisted pair line with a characteristic impedance of  
100Ω. Twisted pair lines consisting of number 20 or 22  
gauge wire will generally have this characteristic impedance.  
Special high quality transmission lines are not necessary  
and standard audio, shielded-twisted pair, cable is generally  
suitable.  
The transmitter alternately applies the current to each of the  
two conductors in the twisted pair line such that the total  
current in the twisted pair is constant and always in the same  
direction. This current flows through either of the two 50V  
terminating resistors at the receiver and returns to the  
transmitter as a steady DC current on the transmission line  
shield. The DC power supply return for the transmitter is  
through the receiver terminating resistors (the transmitter  
ground pin is only a substrate ground). Therefore, it is  
essential that the shield be connected to the power supply  
common at both the transmitter and receiver, preferably at  
the integrated circuit “ground” pin. More than fifteen twisted  
pair lines can share the same shield without crosstalk.  
Since the necessary characteristics for various twisted pair  
lines are not readily available, it may be necessary to take  
some measurements on a length of the proposed line. To do  
this, connect an HS-245RH transmitter to one end of the line  
(100 feet or more) and an HS-246RH to the other end. The  
rise and fall-times can be measured on the line at both ends  
and the constant ‘‘K’’, for that line can be computed as  
shown in Figure 7 so that the minimum pulse width can be  
determined for any length of line.  
Receivers  
The HS-248RH “party-line” receiver presents a high  
impedance load to the transmission line allowing as many as  
ten HS-248RH receivers to be distributed along a line without  
excessive loading. Figure 6 shows a typical system of a  
transmitter, a terminating receiver and a party-line receiver.  
The transmission line is terminated in its characteristics  
impedance by an HS-246RH or by a pair of 50Ω resistors  
connecting each line to the ground return shield.  
Data rates of 2MHz have been obtained using 1,000 feet of  
standard shielded, twisted pair, audio cable. Data rates of  
15MHz are possible on shorter lengths of transmission line  
(50 feet).  
Electromagnetic Interference  
Very little electromagnetic interference is generated by the  
Intersil current mode system because the total current  
through the twisted pair is constant, while the current  
through the shield is also constant and in the opposite  
direction. This can be verified by observing, with a current  
probe, the total current through the twisted pair, through the  
shield and through the complete shielded, twisted pair cable.  
In each case a constant current will be observed with only  
small variations. Small pulses may be observed if the  
complementary inputs to the transmitter do not switch at the  
same time. The current will decrease during the time both  
inputs are high, and will increase during the time both inputs  
are low. These switching pulses may be observed when  
using the circuit shown in Figure 6. The amplitude and shape  
of these pulses will depend of the propagation delay of G1,  
and transition times G2 and G3. These pulses are generally  
of no concern because of their small amplitude and width,  
but they may be reduced by increasing the similarity of the  
waveforms and timing synchronization of the complementary  
signals applied to the transmitter.  
Transmission Lines  
The maximum frequency (or minimum pulse width) which  
can be carried by a certain length of a given transmission  
line is dependent on the loss characteristics of the particular  
line. At low frequencies, there will be virtually no loss in  
pulse amplitude, but there will be a degradation of rise and  
fall-time which is roughly proportional to the square of the  
line length. This is shown in Figure 7. If the pulse width is  
less than the rise-time at the receiver end, the pulse  
amplitude will be diminished, approaching the point where it  
cannot be detected by the receiver.  
150mV  
LINE  
VOLTAGE  
0V  
AT TRANS-  
MITTER  
TTLH1  
TTHL1  
TTLH2  
TTHL1  
150mV  
In addition to generating very little noise, the system is also  
highly immune to outside noise since it is difficult to  
capacitively couple a differential signal into the low  
LINE  
VOLTAGE  
AT  
0V  
RECEIVER  
impedance twisted pair cable and it is even more difficult in  
induce a differential current into the line due to the very high  
impedance of the constant current transmitter. Therefore,  
differential mode interference is generally not a problem with  
the Intersil current mode system. Large common mode  
voltages can also be tolerated because the output current of  
the transmitter is constant as long as the receiver  
TTLH2  
TTHL2  
TTLH2 TTHL2  
MINIMUM PULSE WIDTH  
WIDE PULSE  
2
TRLH2 = TTLH1 KL  
TTHL2 = TTHL1 KL  
Where: L is Line Length K is  
determined by line loss  
characteristics  
2
FIGURE 5. TRANSMISSION LINE WAVE-SHAPING  
termination ground is less than 2V positive with respect to  
5
12345678

中文翻译

下载PDF

与HS9-245RH相关器件

型号 品牌 获取价格 描述 数据表
HS9-245RH/PROTO INTERSIL

获取价格

 		Radiation Hardened Triple Line Transmitter
HS9-245RH/SAMPLE RENESAS

获取价格

 		TRIPLE LINE DRIVER, CDFP14
HS9-245RH-8 INTERSIL

获取价格

 		Radiation Hardened Triple Line(party-Line) Transmitter
HS9-245RH-Q INTERSIL

获取价格

 		Radiation Hardened Triple Line(party-Line) Transmitter
HS9-246RH/SAMPLE RENESAS

获取价格

 		Line Receiver, 3 Func, 1 Rcvr, BIPolar, CDFP14
HS9-246RH-8 INTERSIL

获取价格

 		Radiation Hardened Triple Line(party-Line) Transmitter
HS9-246RH-Q INTERSIL

获取价格

 		Radiation Hardened Triple Line(party-Line) Transmitter
HS9-248-8 RENESAS

获取价格

 		HS9-248-8
HS9-248RH/SAMPLE RENESAS

获取价格

 		TRIPLE LINE RECEIVER, CDFP14
HS9-248RH-8 INTERSIL

获取价格

 		Radiation Hardened Triple Line(party-Line) Transmitter

与HS9-245RH相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证