ADM7008
Product Review
Chapter 1
Product Overview
1.1
Overview
The ADM7008 is a single chip eight port 10/100M PHY, which is designed for today’s
low cost and low power dual speed application.
It supports eight auto sensing 10/100 Mbps ports with on-chip clock recovery and base
line wander correction including integrated MLT-3 functionality for 100 Mbps operation.
It also supports Manchester Code Converter with on chip clock recovery circuitry for 10
Mbps functionality, provides Reduced MII (RMII), Serial MII (SMII) and Source
Synchronous MII (SS_SMII) interface to facilitate high port count switch system
application and reduce the pin number simultaneously.
For today’s Information Application (IA), ADM7008 also supports “Auto Cross Over
Detection” function to eliminate the technical barrier between networking and the end
user. With the aid of this auto cross over detection function, Plug-n-Play features can be
easily applied to IA relative products.
To make the user interface as friendly as possible, ADM7008 provides cable length
information for CAT5 cable and also detects that the wire connection on the RJ-45 is
broken or not. This function is specifically helpful in system debugging, especially for
high port count approach system debugging.
The major design goal for ADM7008 is to reduce the power consumption and system
radiation for the whole system. With the aid of this low power consumption and low
radiation chip, fan and on-system power supply can be removed to save the total
manufacture cost and make SOHO application achievable.
ADMtek Inc.
1-1
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