What is NRZ?
Non-return-to-zero: the most basic signaling scheme, sending 1 bit per symbol with two voltage levels.
Field: I/O Interfaces & Buses
NRZ in the explanations
With the same voltage swing, two-level NRZ has the full swing between 0 and 1, but four-level PAM4 leaves only about one third of it between adjacent levels.
Why does forward error correction (FEC) become more importa…Conventional NRZ uses two voltage levels to send 1 bit per symbol.
What is a characteristic of PAM4 (four-level pulse amplitud…
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Related terms
PAM4 PCI Express ECC (error-correcting code) 128b/130b encoding 8b/10b encoding AXI Bit error rate (BER) Characteristic impedance Clock and data recovery (CDR) Compute Express Link (CXL)