NE8392C

更新时间： 2024-11-19 22:29:07

品牌	Logo	应用领域
恩智浦 - NXP		以太网
页数	文件大小	规格书
9页	74K
描述
Coaxial transceiver interface for Ethernet/Thin Ethernet

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NE8392C 数据手册

Philips Semiconductors

Product specification

Coaxial transceiver interface for Ethernet/Thin Ethernet

NE8392C

DESCRIPTION

PIN CONFIGURATION

The NE8392C Coaxial Transceiver Interface (CTI) is a bipolar

coaxial line driver/receiver for Ethernet (10base5) and Thin Ethernet

(10base2) local area networks. The CTI is connected between the

coaxial cable and the Data Terminal Equipment (DTE) and consists

of a receiver, transmitter, receive-mode collision detector, heartbeat

generator and jabber timer (see Block Diagram). The transmitter

output connects directly to a doubly terminated 50Ω cable, while the

receiver output, collision detector output and transmitter input are

connected to the DTE through isolation transformers. Isolation

between the CTI and the DTE is an IEEE 802.3 requirement that

can be met on signal lines by using a set of pulse transformers

normally available in a standard 16-pin DIP. Power isolation for the

CTI is achieved using DC-to-DC conversion through a power

transformer (see Figure 1, Connection Diagram).

N PACKAGE

16 CDS

CD+

CD–

15 TXO

14 RXI

RX+

13 V

12 RR–

11 RR+

RX–

TX+

10 GND

TX–

HBE

During transmission the jabber timer is initiated to disable the CTI

transmitter in the event of a longer than legal length data packet.

Receive-mode collision detection circuitry monitors the signals on

the coaxial cable to determine the presence of colliding packets and

signals the DTE in the event of a collision. At the end of every

transmission the heartbeat generator creates a pseudo collision for

a short time to ensure that the collision circuitry is functioning

correctly. The heartbeat function can be disabled for repeater

applications.

A PACKAGE

28 27 26

The CTI is normally part of a three chip set that implements a

complete Ethernet/ Thin Ethernet network interface for a DTE (see

Figure 2, Interface Diagram). The other chips are a Serial Network

Interface (SNI) and a Network Interface Controller (NIC). The SNI

provides Manchester Encoding and Decoding while the NIC handles

the media access protocol and buffer management tasks.

RR–

12 13 14 15 16 17 18

FEATURES

• Compatible with Ethernet II IEEE 802.3 10base5 and 10base2,

SD00283

and ISO 8802/3 interface specifications

• 100% drop-in compatible with industry standard 8392 sockets

• On-chip precision voltage reference for receive mode collision

detection

• Integrates all transceiver electronics except signal and power

isolation

• Squelch circuitry on all signal inputs rejects noise

• Full ESD protection

• Only one external resistor required for setting coaxial signaling

current

• Standard 16-pin DIP and 28-pin PLCC packages

• Jabber timer function integrated on chip

• Power-on reset prevents glitches on coaxial cable during power

• Heartbeat generator can be externally disabled for operation as

up.

IEEE 802.3 compatible repeaters

• Also available in advanced low-power BiCMOS technology. (See

selection chart and data sheets for the NE83C92, NE83Q92 or

NE83Q93 for appropriate optimal usages)

ORDERING INFORMATION

DESCRIPTION

TEMPERATURE RANGE

0 to +70°C

ORDER CODE

NE8392CN

DWG #

SOT28-4

SOT261-3

16-Pin Plastic Dual In-Line Package (DIP)

28-Pin Plastic Lead Chip Carrier (PLCC)

0 to +70°C

NE8392CA

1995 May 1

853-1693 15180

12 3 4 5 6 7...9

中文翻译

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与NE8392C相关器件

型号	品牌	获取价格	描述	数据表
NE8392C-2A	ETC	获取价格	LAN Transceiver
NE8392C-2N	ETC	获取价格	LAN Transceiver
NE8392CA	NXP	获取价格	Coaxial transceiver interface for Ethernet/Thin Ethernet
NE8392CA-T	ETC	获取价格	LAN Transceiver
NE8392CN	NXP	获取价格	Coaxial transceiver interface for Ethernet/Thin Ethernet
NE83C92	NXP	获取价格	Low-power coaxial Ethernet transceiver
NE83C92A	NXP	获取价格	Low-power coaxial Ethernet transceiver
NE83C92A-T	PHILIPS	获取价格	Ethernet Transceiver, 1-Trnsvr, BICMOS, PQCC28,
NE83C92N	NXP	获取价格	Low-power coaxial Ethernet transceiver
NE83Q92	NXP	获取价格	Low-power coaxial Ethernet transceiver

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