Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Amplitude control
Patent
1997-09-26
2000-04-04
Wells, Kenneth B.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Amplitude control
327112, 327437, 326 87, H03L 500
Patent
active
060466219
ABSTRACT:
A differential signal generator for generating a true/complement output signal pair in response to a single-ended input signal is disclosed. The differential signal generator includes an input stage that generates a true/complement intermediate signal pair in response to the input signal, and first and second inverters that generate the output signal pair in response to the intermediate signal pair. The first and second inverters have dynamic beta ratios that change in response to the input signal. This is accomplished by coupling a transistor in the first inverter to ground and decoupling a transistor in the second inverter from ground when the input signal has a high value, and decoupling the transistor in the first inverter from ground and coupling the transistor in the second inverter to ground when the input signal has a low value. As a result, the output signal pair cross each other at a predetermined cross-point although the intermediate signal pair does not.
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Advanced Micro Devices , Inc.
Wells Kenneth B.
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