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| MWJ-6392E DVD Jitter Meter |
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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. |
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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. |
| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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. |
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