Low voltage differential signal driver circuit and method
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United States of America Patent
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May 31, 2005
Issued Date -
N/A
app pub date -
Nov 4, 2002
filing date -
Nov 4, 2002
priority date (Note) -
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Abstract
Embodiments of the present invention relate to a low voltage differential signal driver (LVDS) circuit which comprises a current source, logic controlled switches for controlling the driver's output, an electronic load circuit coupled across the circuit, and a common-mode resistor feedback circuit coupled across the circuit, in parallel with the RC load, for tuning the driver's impedance. The driver is enabled to operate without op-amps and achieves optimum performance at 1.8 v supply voltages.
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