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DM9081F Fiches technique(PDF) 2 Page - Davicom Semiconductor, Inc.

No de pièce DM9081F
Description  10BASE-T Hub Controller
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Fabricant  DAVICOM [Davicom Semiconductor, Inc.]
Site Internet  http://www.davicom.com.tw
Logo DAVICOM - Davicom Semiconductor, Inc.

DM9081F Fiches technique(HTML) 2 Page - Davicom Semiconductor, Inc.

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Specifications
Repeater functions comply with IEEE 802.3 Repeater Unit specification
Eight Integral 10BASE-T transceivers utilize the required pre-distortion
transmission technique
Two Attachment Unit Interface (AUI) ports allow connection with 10BASE5
(Ethernet) and 10BASE2 (Cheapernet) networks
Design a Dumb Hub in minimum mode by using minimum external logic that
can respond to Link, Carrier Sense and Collision Status from LED
Supports one LED output per port for additional status indicators such as
Link, Partition, Carrier Sense, etc.
Built-in Jabber LED reports global Jabber information of the DM9081 Hub
Built-in Traffic LED indicates Hub global 10MHz bandwidth utilization status
Expandable to accommodate two DM9081 connections, with no external
logic required
On board PLL, Manchester encoder/decoder and FIFO
Expandable to accommodate increased number of repeater ports.
Recommended IC cascade number: under 3 and inclusive
Preamble loss effects eliminated by deep FIFO
Each port can be isolated (partitioned) and reconnected separately
Twisted Pair Link Test capability
Full amplitude and timing regeneration for retransmitted signals
Low power CMOS process with single 5V supply, 100-pin QFP package
Application
VoIP CPE (ATA, IP Phone, Video Phone)
IP STB, IPC, Internet Radio
Ordering Information
Part Number
Pin Count
Package
DM9081F
100
QFP
DM9081FP
100
QFP
(Pb-Free)
DAVICOM Semiconductor, Inc.
No.6, Li-Hsin Rd.VI, Science Park, Hsin-Chu, Taiwan, R.O.C.
TEL: 886-3-5798797
FAX: 886-3-5646929
E-mail: sales@davicom.com.tw


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