JITTER METER

< DESCRIPTION >
The MDJ-6360A is designed for measuring the time jitter in the 3T component of the EFM modulated signal of DVD, CD players, CD-ROM drivers and other devices at Standard / Hexa./ Octupla speed. It extracts the 3T component of the EFM signal and measures the jitter in real time.

It also indicates GO or NO-GO with lamps according to preset GO/NO-GO threshold values and displays the results on the meter.

In addition, measurements at high speed are possible since the T/V conversion method is employed.

< FEATURES >
1. Standard, Six hold and Eight hold speed measurements are selectable on the front panel.

2. The 3T jitter of the EFM signal of disk drivers can be read directly from the meter.

3. The jitter value is indicated in standard deviation (SIGMA mode).

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

5. A GO/NO-GO result is indicated in relation to a preset jitter threshold value.

6. The polarity of the 3T measurement can be selected (positive-going or negative going).

7. Improvements in the compensation for the period have resulted in highly stable operation when the signal 

is in the asymmetrical condition.

8. A jitter output connector enables the jitter waveform to be observed on an oscilloscope.

9. A remote control function is provided.

SPECIFICATIONS

Input Characteristics

Input Signal EFM signal (HF or Logic signal)

3T Frequency x1 : 720.3kHz

×6 : 4.500MHz / ×8 : 5.7624MHz

Max. Input Voltage10V( DC + Peak AC )

Level Range 0.05Vp-p ~ 5Vp-p

Input Impedance 1M Ohm, unbalanced

Input Capacitance Less than 25pF

Output Characteristics

MONITOR output

±10% of Input signal at open circuit

Output Impedance 75 Ohm ±10%

JITTER output

0.353Vrms/f.s. ±10% at open circuit ( 10kHz )

Output Impedance 600 Ohm ±10%

Remote Control Function A remote control operation is available

General Date.

Operating Temperature 0ºC to 40ºC

Power Requirement

85 ~ 264V AC ±10%, 47Hz ~ 440Hz, 30VA

Dimensions & Weight

Approx. 150(w) × 220(H) × 325(D)mm, 3.9kg

Jitter Measurements

Measurement Range 3.0T ±0.5T

Capturing Range Within ±5% of 3T frequency

Pulse Compensating Range

Less than 0.5T of ×1, ×6, ×8

(Asymmetric variable range)

Meter Indication

Mode SIGMA (Standard deviation) mode

Meter Range ×1 : 30nsec ×6 : 9nsec ×8 : 5nsec

Meter Readout

Accuracy Within ±3% of f. s. at ×1

Within ±5% of f. s. at ×6& ×8

Polarity of Input Signal Positive or Negative of  3T signal, Selectable Judgment Function Possible to preset the GO/NO-GO Threshold value

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