Mentor XL
17.7
10
MH
Z
I
NPUT
P
ERFORMANCE
The lock mode is assumed set to external 10 MHz.
10MHz input type
1 BNC, 75
Ω
terminated
10MHz input return loss @ 10 MHz
< -35dB
10MHz D.C. range
<
±
3V
10MHz signal amplitude (to keep unit within specification)
0.5V to 3V pk to pk (terminated)
Signal amplitude below which signal will be indicated as missing.
0.4V
10MHz frequency lock range
10 MHz
±
200 Hz (
±
20 ppm.)
Lock up time
< 0.1 seconds
Output sync jitter with respect to ‘clean’ 10MHz input
<
±
2 ns
Output subcarrier jitter with respect to ‘clean’ 10MHz input
<
±
0.2
°
17.8
SD-SDI
O
UTPUTS
General
Format
270 Mbit/s 10 bit
Standards
ITU-R BT 601, 656, EBU Tech 3267, SMPTE 125M, 244M,
259M, 272M, RP165, RP178)
Video
Output impedance
75
Ω
Amplitude
800 mV pk-pk ±10%
Return loss to
270MHz
> 15dB
Overshoot
<10%
Jitter
<0.2UI, above 10Hz jitter frequency
Rise/Fall times
0.4 to 1.5ns (20-80%)
DC offset (AC
coupled)
0 ±0.5V
Time offset with
respect to Main
black burst signal
<
±
100 ns
Embedded audio
Active channels
4
Group
1, 2, 3, 4 any / all, freely selected.
Sample frequency
48kHz
Digital coding
24 bits
Audio Tone
25 Hz to 20 kHz in 25 Hz steps
Audio Level
0 to –120dBfs
Tone modes
On, Off, CCIR and EBU
Page 80 of 84
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