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Part: MTD392
Category:
Communication
-> Network
-> Ethernet/DS1/E1 (T1/E1)
Description: 10M Ethernet Coax Mau
Company: Myson Technology
Datasheet: Download MTD392 datasheet File size : 389 kB
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Datasheet text preview:
MYSON TECHNOLOGY
Coaxial Transceiver Interface
FEATURES
· · · · · · · · · · · ·
MTD392 FAMILY
Compatible with ISO/IEEE 802.3 10Base5 (Ethernet) and 10Base2 (Cheapernet). Functionally compatible with National DP8392C. Internal squelch circuitry for noise rejection. Reception/transmission mode collision detection. Transceiver functions integrated except for signal and power isolation. CD heartbeat externally selectable. Advanced low-power, high-performance CMOS technology. ESD protection greater than 2000 volts. 16-pin plastic DIP package, 24-pin skinny plastic DIP package, or 20 and 28-pin PLCC packages. Built-in LED drivers for collision, reception, jabber and transmission status display (MTDX93/X94 only). Collision detection mode for reception, transmission and hybrid (MTDX94 only). Special test mode allowing continuous transmission for waveform testing (MTDX94 only).
GENERAL DESCRIPTION
The MTD392 family includes a series of products, MTD392/3/4 and MTD492/3/4. The MTD392 product family is built for easy MAU interface in a coaxial Ethernet network. The MTD392 product family integrates the coaxial cable interface functions of Medium Attachment Unit (MAU) in Ethernet or Cheapernet LAN applications. In an Ethernet 10Base5 network, the MTD392 product family is mounted on the thick Ethernet coaxial cable and connects to a station through an AUI cable. For Cheapernet applications, the MTD392 product family is connected to the Cheapernet coaxial cable through a BNC connector and is usually mounted on the LAN adapter in a station. Following is a table describing the differences among the MTD392 product family: Pr o d u c t MTD392 MTD393 MTD394 MTD49X Feat u r es Basic transceiver MTD392 with built-in LEDs MTD393 with enhanced collision detection mode, special pin for testing MTD39X with improved performance Pac k ag e Ty p es 16-PDIP 28-PLCC 20-PLCC 24-PDIP 24-PDIP 28-PLCC Rec o m m en d ed Applications Adapter boards Adapter cards with status LEDs MTD393 applications with enhanced collision detection Basic MTD39X applications, Hub, repeater and MAU applications
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. MTD392 Revision 2.01 02/25/1997 1/10
MYSON TECHNOLOGY
B L OCK DIAGRAM FOR MTD392 FAMILY
COAX HIGH PASS EQUALIZATION FXI GND LOW PASS FILTER LOW PASS FILTER + CARRIER SENSE
COM
MTD392 FAMILY
AUI DRIVER
RX+ RXAUI DRIVER CD+ CDTX+ TX-
125 10K
XMT CDS LOW PASS FILTER + COLLISION
VEE
RECV TXO
WAVEFORM SHAPING 10MHz CLK OSC WATCH DOG TIMER 26ms
+ -
DC/AC SQUELCH
VEE RR+
1K
JABBER RESET XMTSQ TIMER 0.4sec
REFERENCE CIRCUIT
RR-
TRANSMIT STATE MACHINE HBE
RECEIVE STATE MACHINE
Block Diagram for MTDX92
COAX HIGH PASS EQUALIZATION FXI GND LOW PASS FILTER LOW PASS FILTER + CARRIER SENSE
COM
AUI DRIVER
RX+ RXAUI DRIVER CD+ CDTX+ TX-
125 10K
XMT CDS LOW PASS FILTER + COLLISION
VEE
RECV TXO
WAVEFORM SHAPING 10MHz CLK OSC
+ WATCH DOG TIMER 26ms
DC/AC SQUELCH XMTSQ JABBER RESET TIMER 0.4sec JAB
VEE RR+
1K
REFERENCE CIRCUIT
RR-
TRANSMIT STATE MACHINE HBE
RECEIVE STATE MACHINE
XMT COL RCV
Block Diagram for MTDX93
MTD392 Revision 2.01 02/25/1997 2/10
MYSON TECHNOLOGY
COAX HIGH PASS EQUALIZATION FXI GND LOW PASS FILTER LOW PASS FILTER LOW PASS FILTER CDS MODE WAVEFORM SHAPING
CLK/1024 COM
MTD392 FAMILY
AUI DRIVER RX+ RXAUI DRIVER CD+ CDTX+
+ +
CARRIER SENSE COLLISION
125 10K
XMT
TX-
VEE
RECV TXO
+ WATCH DOG TIMER 26ms
DC/AC SQUELCH XMTSQ JABBER RESET TIMER 0.4sec JAB XMT COL LED DRIVER RCV
16X RR+
1K
1X
10MHz OSC
CLK
TEST
REFERENCE CIRCUIT
RR-
TRANSMIT STATE MACHINE MOD HBE TEST
RECEIVE STATE MACHINE
Block Diagram for MTDX94
1.0 CONNECTION DIAGRAM
(1) MTDX92 Pin Diagram
CDS
CD+
TXD
RX+
CD-
CD+ CDRX+ VEE VEE RXTX+ TX-
1 2 3 4 5 6 7 8
16 15 14
CDS TX0 RXI VEE RRRR+ GND HBE
VEE VEE VEE VEE VEE(NC) VEE(NC) VEE(NC)
RXTX+ HBE GND GND RR+ TX-
RXI
NC
VEE(NC) VEE VEE
MTD392N
13
MTD392V
28 PIN PLCC
16 PIN PDIP 12 11 10 9
VEE VEE VEE(NC) RR-
MTD392 Revision 2.01 02/25/1997 3/10
Others parts begin by mt
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