N4916B De-Emphasis Signal Converter

The Keysight N4916B is a powerful signal converter. The N4916B can emulate transmitter de-emphasis with one pre- and two post-cursors and individually adjustable de-emphasis levels of up to 12.0 dB. With its DC-coupling it tolerates unbalanced pattern streams that often occur in training sequences. The N4916B is designed to be transparent to jitter when stimulated with jitter on data and clock signal, enabling emulation of real-world de-emphasis and jitter conditions that a receiver is expected to tolerate. De-emphasis can also be used to compensate for distortions caused by cables, fixtures or test boards in the test set for more precise device characterization results.
Key features of the Keysight N4916B include the following:
Generates 4-tap de-emphasis with variable de-emphasis levels up to 12.0 dB
Supports data rates from 660 Mb/s to 14.2 Gb/s
Tolerates non-balanced patterns
Transparent to jitter
Flexible usage as front-end for J-BERT N4903B, ParBERT 81250A or other pattern generators
Optional clock multiplier (Option 001)
Small size
Programmable via J-BERT N4903B or stand-alone
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