Feed forward equalizers with current mode sampling
AssigneeTexas Instruments Incorporated
InventorsAni Xavier, Aviral Singhal, Jagannathan Venkataraman
Life of this patent
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Abstract
Methods, apparatus, systems, and articles of manufacture are described to perform current mode sampling with a feed forward equalizer. An example apparatus includes a transistor operable to convert an input voltage signal from a linear equalizer into a current; a first switch to enable and disable based on a first clock signal; a second switch to enable and disable based on a second clock signal; and a capacitor to: charge based on the current when the first switch is enabled; and discharge when the second switch is enabled.
Claims15
A circuit, comprising:
- a first transistor including a control terminal, a first current terminal, and a second current terminal, the second current terminal of the first transistor coupled to a common terminal;
- a second transistor including a control terminal, a first current terminal, and a second current terminal, the control terminal of the second transistor coupled to a clock circuit, the second current terminal of the second transistor coupled to the first current terminal of the first transistor;
- and
- a capacitor including a first terminal and a second terminal, the first terminal of the capacitor coupled to the first current terminal of the second transistor, the second terminal of the capacitor coupled to the common terminal.
An apparatus, comprising:
- a transistor configurable to convert an input voltage into a current;
- a first switch configurable to enable and disable based on a first clock signal;
- a second switch configurable to enable and disable based on a second clock signal;
- and
- a capacitor configurable to:
- charge based on the current when the first switch is enabled;
- and
- discharge when the second switch is enabled.
Dependencies are inferred from the claim text.