EPT7061GM

更新时间： 2024-02-23 00:57:39

品牌	Logo	应用领域
PCA		网络接口电信集成电路电信电路 PC 令牌环网
页数	文件大小	规格书
2页	81K
描述
Miniature Token Ring Transceiver Module

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技术参数
数据手册

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EPT7061GM 技术参数

生命周期：	Active	包装说明：	,
Reach Compliance Code：	compliant	HTS代码：	8542.39.00.01
风险等级：	5.81	Is Samacsys：	N
JESD-30 代码：	R-XDMA-G16	功能数量：	1
端子数量：	16	封装主体材料：	UNSPECIFIED
封装形状：	RECTANGULAR	封装形式：	MICROELECTRONIC ASSEMBLY
认证状态：	Not Qualified	表面贴装：	YES
电信集成电路类型：	TOKEN RING TRANSCEIVER	端子形式：	GULL WING
端子位置：	DUAL	Base Number Matches：	1

EPT7061GM 数据手册

Miniature Token Ring Transceiver Module

EPT7061GM

E L E C T R O N I C S I N C .

The circuit below is a guideline for interconnecting PCA’s EPT7061GM with a typical Token Ring PHY chip for 4 Mb/16Mb

applications over STP or UTP cable. Further details of system design should be obtained from the specific chip

manufacturer. Note that this module is optimized for a “voltage source” driver such as TI380C60. Only one type of cable

should be driven by the module: either UTP or STP.

Note that the two channels have identical filtering and other magnetics . This option is seen to be widely used by system

designers when designing dedicated Token Ring systems.

The pull down resistors to chassis via a cap shown around the RJ45 connector have been known to suppress unwanted

radiation that unused wires pick up from the immediate environment. This is specially true if driving UTP cable. Their

placement and use are to be considered carefully before a design is finalized.

No specific recommendation is made here for phantom return circuitry: implementation varies. Please note that additional

emission control has been observed if both nodes of the phantom bypass capacitor on the transmit channel are pulled to

the chassis ground via suitable capacitors.

It is recommended that there be a neat separation of ground planes in the layout. It is generally accepted practice to limit

the plane off at least 0.05 inches away from the chip side pins of EPT7061GM. There need not be any ground plane beyond

this point.

For best results, PCB designer should design the outgoing traces preferably to be 50Ω (UTP), balanced and well coupled to

achieve minimum radiation from these traces.

Typical Application Circuit Connection to TI380C60 (or Equivalent). Only NIC side shown.

Rcv-

Rcv±

RJ45

Rcv+

PH-B

PH-A

Xmit±

+5V

50Ω/2W

PHOUTA

PHOUTB

50Ω/2W

10µF

DTR PHY

Xmit+

Xmit-

100Ω

EPT7061GM

Notes : 1. Pins 3 & 4 are left unconnected. Applications vary. Your system may have a phantom drive return

detection circuit needing pins 3 & 4 to be connected separately.

CST7061GMb Rev. 2 2/27/98

PCA ELECTRONICS, INC.

16799 SCHOENBORN ST.

NORTH HILLS, CA 91343

TEL: (818) 892-0761

FAX: (818) 894-5791

http://www.pca.com

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