Serdes transmitter and receiver utilizing single frequency phase amplitude modulation
AssigneeTexas Milkyway Inc.
InventorSheau-Jiung Lee
Life of this patent
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Abstract
Multiple examples are disclosed of SerDes transmitters and receivers. In one example, a transmitter comprises a mapping block to receive a clock signal and a two-bit data signal and to generate a plurality of pairs of digital values; a plurality of current steering blocks, each of the plurality of current steering blocks receiving one of the plurality of pairs of digital values to generate a pair of currents; a current summer and modulation block to receive the pair of currents from each of the plurality of current steering blocks to generate a differential output signal; wherein the differential output signal is a single frequency pulse amplitude modulated signal wherein the single frequency is a frequency of the clock signal.
Claims21
1-20. (canceled)
A method comprising:
- generating a plurality of pairs of digital values based on a clock signal and a two-bit data signal;
- for each of the plurality of pairs of digital values, generating a pair of currents from the pair of digital values, thereby yielding a plurality of pairs of currents;
- generating a differential output signal based on the pairs of currents, wherein the differential output signal is a single frequency pulse amplitude modulated signal;
- and
- transmitting the differential output signal.
Dependencies are inferred from the claim text.