MJM-631U CD Jitter Meter Unit

* End of production



This CD jitter meter unit is a built-in type and is designed for measuring the time jitter in the 3T component of the EFM modulated signal of CD players and relative devices.

SPECIFICATIONS

 Input Section

Input signal

EFM signal

Clock frequency

4.3218MHz

Input level range

0.3Vp-p to 5.0Vp-p

Input impedance

Approx. 1M£[

 Measuring Section

Measuring range

2.5T (578ns) to 3.4T (787ns)

Pulse width compensating range

694ns ¡Ó0.5T (115ns)

Measuring jitter output value

One sigma value

Measuring range

30ns and 60ns

Measuring edge (Polarity)

+ and - of input signal

 Input/Output terminal (REMOTE)

RECORDER output

30ns/V (30ns range) and 60ns/V (60ns range),
Max. 2V ¡Ó0.05V (open circuit)

Measuring range change

TTL input

Measuring edge change

TTL input

Data enable output

TTL level

 Others

Required external power source

+7.0V to +15.0V, 0.3A
-7.0V to -15.0V, 0.3A

Operating temperature range

0ºCto +40ºC

 CONNECTOR

Case outer dimensions

170 (W) ¡Ñ30 (H )¡Ñ170 (D )mm

Fitting dimensions

• Horizontal 4-position

120(W)¡Ñ160(D)mm

• Vertical 2-position

160(L)mm



 OPTIONS

Connecting cable set

Input cable : 1

Output / Control cable : 1

Cable for external power source : 1

Case :
A special case with external power source unit is available on option.

*

Specifications are subject to change without notice.