Continuous time linear equalizer
First Claim
1. A system comprising:
- a first signal path comprising a first amplifier, a high pass filter, and a first controllable transconductance unit;
a second signal path comprising a second amplifier and a second controllable transconductance unit coupled to the second amplifier; and
a summation node configured to receive complementary current summation signals of the first controllable transconductance unit and the second controllable transconductance unit, wherein the high pass filter comprises,a first port configured to receive an input signal from an output of the first amplifier,a second port coupled to a control port of the first controllable transconductance unit, anda third port coupled to the summation node.
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Abstract
The present invention relates to a continuous time linear equalizer comprising a first signal path comprising a high pass filter and a first controllable transconductance unit and a second signal path comprising a second controllable transconductance unit. The continuous time linear equalizer comprises a summation node configured to receive complementary current summation signals of the first transconductance unit and the second transconductance unit. The high pass filter comprises a first port configured to receive an input signal, a second port coupled to a control port of the first transconductance unit and a third port coupled to the summation node. The invention is notably also directed to a corresponding method and a corresponding design structure.
17 Citations
17 Claims
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1. A system comprising:
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a first signal path comprising a first amplifier, a high pass filter, and a first controllable transconductance unit; a second signal path comprising a second amplifier and a second controllable transconductance unit coupled to the second amplifier; and a summation node configured to receive complementary current summation signals of the first controllable transconductance unit and the second controllable transconductance unit, wherein the high pass filter comprises, a first port configured to receive an input signal from an output of the first amplifier, a second port coupled to a control port of the first controllable transconductance unit, and a third port coupled to the summation node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method comprising:
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receiving, by a summation node, complementary current summation signals of a first controllable transconductance unit and a second controllable transconductance unit, wherein a first signal path comprises a first amplifier, a high pass filter, and the first controllable transconductance unit; and wherein a second signal path comprises a second amplifier and a second controllable transconductance unit coupled to the second amplifier; and receiving, by the high pass filter, an input signal from an output of the first amplifier on a first port of the high pass filter, wherein the high pass filter comprises a second port coupled to a control port of the first controllable transconductance unit and a third port coupled to the summation node. - View Dependent Claims (16)
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17. A system comprising:
a first signal path comprising a first amplifier, high pass filter and a first controllable transconductance unit; a second signal path comprising a second amplifier and a second controllable transconductance unit coupled to the second amplifier; and a summation node configured to receive complementary current summation signals of the first transconductance unit and the second transconductance unit, wherein the high pass filter is a first order high pass filter comprising; a resistor, a capacitor, a first port configured to receive an input signal from an output of the first amplifier, a second port coupled to a control port of the first controllable transconductance unit, and a third port coupled to the summation node, wherein adjusting at least one of a capacitance of the capacitor or a resistance of the resistor controls a transfer function of the system.
Specification