40G/28G/25G PRBS Generators

The Perfect Eye PRBS

Product description

The Centellax 40G PRBS Source is a fully self-contained pattern generator operating at 40G, 28G, or 25 Gb/s data rates.  The product contains an internal 19.9 GHz oscillator to supply the half rate clock source for 40 Gb/s operation.  Ordering options substitute the correct oscillator frequency for 28G or 25 Gb/s operation.  Alternatively, a wideband option allows the user to supply a half rate clock externally to operate at any data rate between 22 and 44 Gb/s.

The 40G PRBS source is based on full custom ASICs, allowing a high degree of integration.  The low parts count in the signal path minimizes the degradation of the low phase noise oscillator, providing an extremely clean eye pattern.  Utilizing the internal oscillator, the generator achieves world class performance of less than 400 fs rms jitter, with a 500 mv output amplitude and < 7 ps rise time.

Centellax offers a standard one-year warranty, with an extended warranty available, and free calibration during the warranty period.

Key benefits and features

• Built-in low jitter oscillator for 40G, 28G or 25G rates
• True PRBS-7, PRBS-15 and PRBS-31 patterns
• Differential or single-ended outputs

Options

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Product documentation

Typical product performance

All measurements made with the PRBS internal clock at 40Gbps, performed on an Agilent 86100 DCA, with 70GHz remote sampling heads (no cable length), and a 20G precision timebase.

Support documentation