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AM7996JC

更新时间： 2024-10-28 22:25:31
品牌 Logo 应用领域
超微 - AMD 以太网
页数 文件大小 规格书
18页 179K
描述
IEEE 802.3/Ethernet/Cheapernet Transceiver

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中文翻译

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AM7996JC 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：QLCC包装说明：QCCJ, LDCC20,.4SQ
针数：20Reach Compliance Code：unknown
HTS代码：8542.39.00.01风险等级：5.7
JESD-30 代码：S-PQCC-J20JESD-609代码：e0
长度：8.9662 mm负电源额定电压：-9 V
功能数量：1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：QCCJ封装等效代码：LDCC20,.4SQ
封装形状：SQUARE封装形式：CHIP CARRIER
峰值回流温度（摄氏度）：NOT SPECIFIED电源：-9 V
认证状态：Not Qualified座面最大高度：4.572 mm
子类别：Network Interfaces最大压摆率：155 mA
表面贴装：YES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：J BEND端子节距：1.27 mm
端子位置：QUAD处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：8.9662 mmBase Number Matches：1

AM7996JC 数据手册

 浏览型号AM7996JC的Datasheet PDF文件第2页浏览型号AM7996JC的Datasheet PDF文件第3页浏览型号AM7996JC的Datasheet PDF文件第4页浏览型号AM7996JC的Datasheet PDF文件第5页浏览型号AM7996JC的Datasheet PDF文件第6页浏览型号AM7996JC的Datasheet PDF文件第7页 
FINAL  
Am7996  
IEEE 802.3/Ethernet/Cheapernet Transceiver  
■ Noise rejection filter ensures that only valid data  
DISTINCTIVE CHARACTERISTICS  
is transmitted onto the network  
■ Compatible with Ethernet Version 2 and  
IEEE 802.3 10BASE-5 and10BASE-2  
specifications  
■ Collision detection on both transmit and receive  
data  
■ Collision detect threshold levels adjustable for  
■ Pin-selectable SQE Test (heartbeat) option  
other networking applications  
■ Internal jabber controller prevents excessive  
transmission time  
GENERAL DESCRIPTION  
The Am7996 IEEE 802.3/Ethernet/Cheapernet Trans-  
ceiver supports Ethernet Version 2, IEEE 802.3  
10BASE-5 and IEEE 802.3 10BASE-2—Cheapernet)  
transceiver applications. Transmit, receive, and colli-  
sion detect functions at the coaxial media interface to  
the data terminal equipment (DTE) are all performed by  
this single device.  
connected to the DTE. Transceiver power and ground in  
both applications are isolated from that of the DTE.  
The Am7996’s tap driver provides controlled skew and  
current drive for data signaling onto the media. The jabber  
controller prevents the node from transmitting exces-  
sively. While transmitting, collisions on the media are de-  
tected if one or more additional stations are transmitting.  
In an IEEE 802.3 (10BASE-5)/Ethernet application, the  
Am7996 interfaces the coaxial (0.4″ diameter) media to the  
DTE through an isolating pulse transformer and the 78 Ω  
attachment unit interface (AUI) cable. In IEEE 802.3  
10BASE-2—Cheapernet applications, the Am7996 typi-  
cally resides inside the DTE with its signals to the DTE iso-  
lated and the coaxial (0.2″ diameter) media directly  
The Am7996 features an optional SQE Test function  
that provides a signal on the Cl pair at the end of every  
transmission. The SQE Test indicates the operational  
status of the Cl pair to the DTE. It can also serve as an  
acknowledgment to the node that packet transmission  
onto the coax was completed.  
BLOCK DIAGRAM  
Carrier  
Detect  
Circuit  
Receive  
Data  
Input  
Buffer  
Control  
Logic  
Line  
Driver  
DI+  
DI–  
Amplifier  
RXT  
Collision  
Detect  
Circuit  
Line  
Driver  
CI+  
CI–  
Control  
Logic  
Jabber  
Timer  
SQE Test  
Generator  
Transmit  
Squelch  
DO+  
DO–  
Transmit  
Data  
Amplifier  
Tap  
Driver  
Input  
Buffer  
TXT  
SQE TEST  
07506E-1  
Publication# 07506 Rev: E Amendment/0  
Issue Date: May 1994  
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中文翻译

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