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參數資料
| 型號： | MTD492 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Coaxial Transceiver Interface |
| 中文描述： | 同軸收發器接口 |
| 文件頁數： | 1/8頁 |
| 文件大小： | 179K |
| 代理商： | MTD492 |
MYSON
TECHNOLOGY
Coaxial Transceiver Interface
MTD492
This datasheet contains new product information. Myson Technology reserves the rights to modify the product specification without notice. No
liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product.
MTD492 Revision 3.5 01/07/1997
1/8
FEATURES
16-pin PDIP and 28-pin PLCC packages.
Compatible with IEEE 802.3 10Base5 (Ethernet) and 10Base2 (Cheapernet).
Internal AUI squelch circuitry for noise rejection.
Transmission IDL detection at end of packet and dribble bit rejection window.
Reception dribble bit rejection window.
Reception and transmission mode collision detection.
Extended collision detection to turn off receiving path.
CD heartbeat externally controllable.
Advanced low-power, high-performance CMOS technology.
ESD protection greater than 2000 Volts.
GENERAL DESCRIPTION
The MTD492 transceiver integrates the coaxial cable interface functions of the Medium Attachment Unit
(MAU) in Ethernet or Cheapernet LAN applications. In an Ethernet 10Base5 network, MTD492 is mounted
on the thick Ethernet coaxial cable and connects to a station through an AUI cable. For Cheapernet
applications, MTD492 is connected to the Cheapernet coaxial cable through a BNC connector and is
usually mounted on the LAN adapter in a station.
BLOCK DIAGRAM
HIGH PASS
EQUALIZATION
LOW PASS
FILTER
LOW PASS
FILTER
COM
-
+
LOW PASS
FILTER
125
10K
REFERENCE
CIRCUIT
1K
AUI
DRIVER
AUI
DRIVER
CARRIER
SENSE
-
+
WAVEFORM
SHAPING
+
-
DC/AC
SQUELCH
WATCH DOG
TIMER 26ms
JABBER RESET
TIMER 0.4sec
10MHz
OSC
TRANSMIT
STATE
MACHINE
RECEIVE
STATE
MACHINE
XMTSQ
CLK
VEE
COLLISION
HBE
FXI
GND
COAX
VEE
RECV
XMT
CDS
TXO
RR+
RR-
RX+
RX-
CD+
CD-
TX+
TX-
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相關代理商/技術參數 |
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| MTD492V | 制造商:MYSON 功能描述: |
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