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EM2C

更新时间： 2024-01-22 04:05:35
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12页 126K
描述
EM2C Ethernet Transceiver Module with on Board Isolation Transformer & DC/DC Converter manual 6/97

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中文翻译

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EM2C 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
包装说明：DIP, DIP20,1.0Reach Compliance Code：compliant
风险等级：5.89Is Samacsys：N
数据速率：10000 MbpsJESD-30 代码：R-PDIP-T20
JESD-609代码：e0端子数量：20
收发器数量：1最高工作温度：70 °C
最低工作温度：封装主体材料：PLASTIC/EPOXY
封装代码：DIP封装等效代码：DIP20,1.0
封装形状：RECTANGULAR封装形式：IN-LINE
电源：5 V认证状态：Not Qualified
子类别：Network Interfaces最大压摆率：380 mA
标称供电电压：5 V表面贴装：NO
技术：HYBRID电信集成电路类型：ETHERNET TRANSCEIVER
温度等级：COMMERCIAL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：DUALBase Number Matches：1

EM2C 数据手册

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TM  
Ether Module -EM2C  
10Base-2  
Ethernet Transceiver Module with on Board  
Isolation Transformer & DC/DC Converter  
97176  
Note: Check for latest Data Sheet revision  
before starting any designs.  
Introduction  
The Thin Net (Cheapernet) module provides a complete  
Local Area Network interface for a station, without a  
transceiver cable. The EM2C is an encased module  
containing all circuit components for a complete Thin Net  
COAX interface and includes an on-board SEEQ CMOS  
83C92C transceiver DC/DC converter and isolation trans-  
former.  
SEEQ Data Sheets are now on the Web, at  
www.lsilogic.com.  
This document is an LSI Logic document. Any  
reference to SEEQ Technology should be  
considered LSI Logic.  
The module is compatible with ANSI/IEEE 802.3 and ISO  
8802-3.  
■ Regulated DC to DC Converter on board.  
■ CollisionTestGenerator,externallydeselectableto  
work with any ANSI/IEEE 802.3 and ISO 8802-3  
repeater.  
The module is part of a chipset manufactured by SEEQ  
Technology to provide the basic components for a LAN  
interface board. The other components include the  
80C03, 8005/80C04A Advanced Ethernet Data Link Con-  
trollers (AEDLCTM), the 8020 or 8023A Manchester Code  
Converter (MCCTM), and the 80C24 Media Interface  
adapter (MIA).  
■ Detects and reports network collisions in both  
transmit and receive modes.  
■ Implemented with SEEQ proprietary high voltage  
(20V) and high performance CMOS process.  
Features  
■ Loopback test detects network cable opens or  
■ The module is compatible with ANSI/IEEE 802.3  
shorts.  
and ISO 8802-3 Standards for Thin Net (10BASE2).  
■ Power On Reset prevents transmission during  
■ Contains all Thin Net COAX transceiver functions  
power up.  
within a single encased unit.  
■ Disable pin to power-down module.  
■ Isolation Transformer on board.  
■ Squelch circuits on all signal inputs to eliminate  
noise.  
■ Optimized for Hub and Repeater Applications.  
■ EM2C is Available for Adapter Card Applications  
RX +  
RX –  
LINE DRIVER  
3
4
RECEIVE  
TO STATION  
1.0  
KΩ  
1:1  
V
RX  
SQUELCH  
EE  
1.0  
KΩ  
COAX  
CABLE  
V
V
EE  
EE  
_
18  
COLLISION  
COMPARATOR  
1.0 KΩ  
LOW PASS  
FILTER  
CD +  
CD –  
1
1:1  
–
+
+
COLLISION  
SIGNAL TO  
STATION  
COLLISION  
TEST  
GENERATOR  
2
LINE  
DRIVER  
1.0  
KΩ  
11  
V
10 MHz  
EE  
OSILLATOR  
V
EE  
GND  
10  
9
V
REGULATED  
DC/DC  
CONV  
CC  
JABBER  
TIMER  
SYS GND  
DM  
12  
TX  
SQUELCH  
TX +  
TX –  
5
6
TRANSMIT  
FROM  
STATION  
TRANSMITTER  
1:1  
Figure 1. Ethernet Transceiver Module Block Diagram  
AEDLC, MCC and Ether Module are trademarks of SEEQ Technology, Inc.  
1
MD400135/D  
1234567...12

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