Wide-range inductor-based delay-cell and area efficient termination switch control
Number of patents in Portfolio can not be more than 2000
United States of America
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Dec 31, 2024
Grant Date -
N/A
app pub date -
Jun 7, 2021
filing date -
Jun 7, 2021
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A quadrature clock generator that takes advantage of the inherently low delay of a shunt-series inductively peaked clock buffer to generate quadrature clocks with the high jitter performance using just one additional stage in Q path compared to I path. The generator includes a delay cell that uses shunt-series peaking and uses a resistive DAC in series with the shunt inductor to provide a large delay range with good jitter characteristics. The resistive DAC can be placed near a real or a virtual ground to minimize capacitive loading on the signal path. This delay cell can provide greater than 2× delay tuning range and is suitable for clocks at high frequencies. This delay cell can also be used as a ring oscillator with large frequency tuning range. A low voltage differential signaling termination switch control that uses feed forward mechanism to control termination impedance of device in a receiver.
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International Classification(s)
- 2021 Application Filing Year
- H03L Class
- 451 Applications Filed
- 350 Patents Issued To-Date
- 77.61 % Issued To-Date
Cited Art Landscape
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- 0 Citation Count
- H03L Class
- 0 % this patent is cited more than
- 1 Age
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