MWJ-6392E DVD Jitter Meter


mwj6392e

The MWJ-6392E is designed for measuring and indicating the jitter components of the data signals with internal PLL clock signal employed as a reference signal from RF signals of DVD, DVD-ROM and other relative devices.
It indicates the measured jitter values by percent (%) in the SIGMA mode and can select either + , - or + /- edge of the data signals as the reference trigger clock edge.
It has the digital equalizer circuit which is adjustable according to the characteristics of Pick-ups, and the INHIBIT function is provided to inhibit jitter measurement of faulty section.
In addition, it indicate whether measured values are acceptable or not by GO or NO-GO lamp by presetting a criterion value.

FEATURES

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It has the digital equalizer circuit which is adjustable according to the characteristics of Pick-up.

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The jitter quantity can be directly read by the meter and LCD indicator.

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This unit converts a time difference between a data signal and the clock into a sigma value and indicated its jitter quantity as the percentage to the clock cycle on the meter indicator.

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Changes in the jitter can be read continuously, due to T/V conversion method of measurement.

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It can select either + or -edge of the data (EFM Plus) signal as the trigger edge, and also select +, - or +/- edge for jitter measurement.

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The INHIBIT function is provided to inhibit jitter measurement of faulty section.

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A GO/NO-GO result is indicted in relation to a preset jitter value.

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The panel-lock function is provided to set measuring conditions.

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A remote control function is provided.

SPECIFICATIONS

 Input Section

DATA Input Signal

EFM Plus signal (RF or Binary signal)

Input Impedance

Approx. 1MΩ, unbalanced

Input Capacity

25pF or less

Input Signal Level

0.1Vp-p to 2Vp-p

Clock Frequency Range

25.5 to 28.5MHz

INHIBIT Input Signal

TTL level

 Jitter Measurement

Indication

Percent(%) indication by the meter and LCD display in SIGMA mode

Measuring Range

0 to 10% and 0 to 20% in two ranges

Jitter Measuring Range

±0.5T to the clock edge

Measuring Accuracy

• Meter Display

±5% of full scale

• Digital Display

±(3% of reading +20 digits), Min. resolution; 0.01%

• Reference Clock

Internal PLL clock

Measuring Data Edge

+,-, or + /-(selectable)

Equalizer (only for RF)

• Frequency Characteristics

In conformity to JIS×6241

• Standattird Seng

+3.2dB ±0.3dB (5.16MHz -200kHz @27MHz)

• Range

0 to 7dB 0.2dB step

• Group Delay Characteristics

Max. 5ns

Low Pass Filter Characteristics

6th Bessel Fc = 8.46 MHz

Slicer Characteristics

In conformity to JIS×6241

PLL Characteristics

In conformity to JIS×6241

 Output Section

RECORDER Output

1VDC ±5% at full scale with open end

MONITOR Output

-6dB ±1dB to input signal level at 50Ω load

REMOTE Output

DATA EDGE, RANGE, EQUALIZER on/off modes on the panel are externally controlled

 Optional output terminals on the rear panel

EQUALIZER Output

Approx. 0.65 V p-p at 50Ω load

JITTER Output

0.1 V rms. ±10% at 50Ω load

DATA Output

0.5 V p-p at 50Ω load

CLOCK Output

0.5 V p-p at 50Ω load

 General Data

Operating temperature range

+5ºC to +40ºC

Power requirements

AC 100/120V to 220/240V ; 15VA

Dimensions

Approx. 240(W)×154(H)×130(D) mm

Weight

Approx. 2.05kg

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Specifications are subject to change without notice.