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| ACT ELECTRONIC CORPORATION |
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| Jitter Meter |
Model-4125A
DVD / CD / CD-R/W Jitter Meter*(A) |
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DVD / CD / CD-R/W Jitter Meter*(A) |
| MODEL 4125 | |
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A DVD,DVD+-R/RW, jitter meter to make real time jitter and level measurements of HF/RF, total T(JISX6241, ECMA-267 recommended) of DVD,HF/RF of DVD players, DVD+-R/RW drives and Pickup. And can measure WOBBLE jitter of DVD-R/RW signal in X 1,X 2,X 4, (X6, X8 optional) speed, DVD+R/RWsignal in X 1,X 2.4 (X4, X8 optional) speed. GO/NO-GO Judgment and GP-IB interface(optional) are provided for the production line of DVD+-R/RW optical pickups, drives, and sets. This is a high integrated Jitter Meter for high integrated disc driver production line.
*The end of model name (A) express additional option installed model, which has functions can measure the WOBBLE signal of X 6, X 8 speed in DVD-R/RW and X4 , X 8 speed in DVD+R/RW. |
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Specifications |
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Input |
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HF/RF, EFM-Plus Signal (DVD),WOBBLE Signal(DVD-R/RW,+R/RW).Digitalized WOBBLE Signal (WOB2 INPUT) |
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input level range |
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0.1Vp-p to 5Vp-p |
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Input Impedance |
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1Mohm 25pF, 50 ohm | |
| Jitter Measuring |
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Measuring mode |
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DVD total T(JISX6241, ECMA-267 recommended) X1clock frequency 27MHz +/-0.5MHz) |
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WOB1,WOB2(-R/RW) :X1, X2, X4,(OPTX6, X8) |
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WOB2(+R/RW):X1, X2, X2.4, (OPTX4,X8) |
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Measuring range |
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DVD total T X1 : +/-0.5T at each edge of clock |
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WOB1,WOB2(-R/RW) |
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+/-25% of 1 cycle of WOBBLE frequency (x1:140.6kHz) |
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WOB2(+R/RW) |
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+/-15% of 1 cycle of WOBBLE frequency(x1:844kHz) |
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Indication method |
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RMS (sigma) indication on 3-digit decimal LCD |
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display and analog meter. | |
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MODE |
DVD Total T, +R/RW |
-R/RW |
| RANGE |
LOW |
10 % |
3 % |
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HI |
20 % |
6 % | |
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Measuring accuracy |
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Within +/-5% at each range of full scale |
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Polarity switching |
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+, -, BOTH |
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-R/RW |
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 changable |
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+R/RW |
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+, -, () |
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CLOCK |
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Regenerated clock from EFM-plus signal with an internal PLL circuit. |
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DVDTotal T |
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DVD total T X1.Clock frequency 27MHz +/-0.5MHz) |
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Frequency characterestics (JISX6241, ECMA-267 recommended) |
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Equalizer |
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ON/OFF changable.Frequency characterestics (JISX6241, ECMA-267 recommended) |
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Time constant |
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Standard, 1/2, 1/5,(at each measuring modes) | |
| Level Measuring (Total Tin DVD, WOB1) |
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Indication Method |
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P-P indication on 3-digit decimal display. |
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Measuring range |
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0.1Vp-p to 5Vp-p |
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Has 2ranges as 1.5V, 5V. (with automatic) |
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Measuring accuracy |
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Within +/-5% of full scale. | |
| Judgin Feature and Panel Front Pressing Feature |
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GO-NG Set up range |
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Jitter, Level on 3-digit decimal display. |
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Presetting feature |
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Possible to store/recall 100 sets of setting on the panel. |
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| I/O Terminal |
Jitter output (AC output)
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Output level |
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For each full-range scale 1VDC +/-5%(open end) | |
Recorder output
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Output level |
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Jitter |
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For each full-range scale 1VDC +/-5%(open end) |
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Level |
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For each full-range scale 1VDC +/-5%(open end) | |
Panel I/O terminal
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Judgment output |
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Jitter, Level GO/NG(4)TTL output |
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Remote input |
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3 keys on the panel can be remote-controlled, |
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TTL input. | |
| GP-IB Interface (optional ) |
| Power Supply |
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AC90V to 260V, 50/60Hz, approximately 50VA | |
| Dimensions and Weight |
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280(W) x 150(H) x 305(D)mm approximately 5kg | | | |
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