High-speed output driver
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United States of America Patent
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-
N/A
Issued Date -
Aug 15, 2002
app pub date -
Jun 4, 2001
filing date -
Jun 2, 2000
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A high-speed output driver produces a fast differential output signal for a serial transmitter. The output driver includes a first stage circuit which comprises a first active element to pull the first stage circuit output to a logic high and a second active element to pull the first stage circuit output to a logic low. The first active element and the second active element are controlled by complementary signals. The first stage circuit drives a second stage circuit (e.g., a current mode logic circuit) which reacts relatively quickly to signal transitions by steering substantially constant current between differential pair transistors.
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