CPC H04L 25/4917 (2013.01) [H04L 27/04 (2013.01)] | 21 Claims |
1. A transmitter circuit comprising:
two or more input converter circuits coupled in parallel, each of the two or more input converter circuits configured to convert a non-return-to-zero (NRZ) input voltage signal to a corresponding current signal; and
a combining circuit, the combining circuit configured to combine the two or more corresponding current signals to generate a pulse amplitude modulation level N (PAM-N) signal output,
wherein the two or more input converter circuits and the combining circuit comprise a CMOS-inverter-based circuit.
|