High precision from digital jitter meter

The new TA120F from Yokogawa Martron is a digital jitter analyser for making measurements on optical disks including CDs and DVD/ROMs.

The new TA120F from Yokogawa Martron is a digital jitter analyser for making measurements on optical disks including CDs and DVD/ROMs.

With its simple, easy-to-read analogue display, it is ideally suited to production-line applications.

The new instrument uses Yokogawa's TIA (time interval analysis) system to carry out highly repeatable precision measurements with a continuous sampling rate of 10Msample/s.

Measurements are displayed on a digital LED display as well as the analogue meter.

The maximum speed for a single measurement is 50ms (for a DVD with 100k sampling).

A GPIB interface, jitter proportional DC output, equaliser (DVDx1) and a 27MHz phase-locked loop (PLL) circuit are fitted as standard, while biphase measurement and level measurement functions are offered as optional features.

Other functions include stand-alone self-diagnosis and self-calibration, inhibit and external arming functions for synchronisation with external signals, and automatic measured jitter correction.

Up to seven sets of measurement settings can be saved and loaded from memory.

Measurements are fully compatible with those from Yokogawa's existing TA320 and TA520 range of time-interval analysers, which incorporate continuous search functions and are designed for research and development applications.

Thus high-precision measurements can be maintained consistently from R and D through to the production environment.

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