ACT ELECTRONIC CORPORATION
Jitter Meter
Model-4121
DVD , CD , CD-R/W , MD Jitter Meter
DVD , CD , CD-R/W , MD Jitter Meter
MODEL 4121
MODEL 4121 is a DVD,CD,CD-R/RW Jitter Meter to make real time measurement of the HF/RF, total T (JISX6241, ECMA-267 recommended) jitter (3T to 14T) between EFM-Plus signal and CLOCK which is regenerated from HF/RF, EFM-Plus signal through a PLL circuit from DVD,DVD-ROM drives. And it possible to measure the 3T jitter in HF/RF, EFM signal from CD,CD-ROM drives, and also 1T jitter measurement (*optional) in BI-PHASE signal from CD-R/RW drives or MD players.
Above value of jitters are showed on a big and clear digital LCD display and analog meter. In addition, it possible to measure the peak to peak level of EFM-Plus signal to show the LCD display and has memory function for panel settings, Parallel I/O remote control from out side, and also the function of GO/NO-GO judgment which necessary functions for production line. The MODEL 4121 DVD CD CD-R JITTER METER has high-integrated functions and GP-IB interface (*optional) which is suitable for automatization of high integrated and multipurpose production line.
Specifications
Input
Input signal :
HF/RF, EFM-Plus signal, EFM signal and
*BI-PHASE signal
input level range : 0.05Vp-p to 5Vp-p
Input Impedance : 1M ohm 25pF 50 ohm(can be selected)
Jitter Measuring
Measuring mode : DVD total T(JISX6241, ECMA-267 recommended) X1(clock frequency 27MHz +/-0.5MHz)
Measuring range CD-3T: 3speeds can be installed from X1, X2, X4, X8, DVD-3T
BI-PHASE(*optional) X1, X2, X4, X8, X10, X12, X16, X24, X32
:
DVD total T X1 : +/-0.5T at each edge of clock
CD-3T: X 1, X 2, X 4........3T(2.5T to 3.4T)
:
BI-PHASE(*) X 1........1T(159us +/-80us)  
X 2........1T(79.4us +/-40us)
X 4........1T(39.7us +/-20us)
X 8........1T(19.8us +/-10us)
X10.......1T(15.9us +/-8us)
X12.......1T(13.2us +/-6.6us)
X16.......1T(9.9us +/-5us)
X24.......1T(6.6us +/-3.3us)
X32.......1T(5.0us +/-2.5us)
Indication method : RMS (sigma