Signal detect circuitry for a passive GBIC module
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United States of America Patent
Stats
-
Nov 19, 2002
Issued Date -
N/A
app pub date -
Apr 27, 1999
filing date -
Nov 25, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Transceiver circuitry (10, 200) for use in a GBIC module uses readily available off the shelf components to satisfy the specifications of the GBIC standard. In both passive and active modules, a voltage divider (98) and parallel transistors (94, 96, 100) are utilized to insure that the differential voltage of the received differential signal is at an acceptable level. In active modules, a diode cross over quad (84) is utilized to extend the input range of a low input differential receiver (78) and a coaxial cable driver (60) designed to drive 50 ohms is utilized to drive 150 ohms.
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