12 Attachment: Technical Information
12.8.22 LNO - 10 MHz Sinus Output Module
The LNO180 is a 10 MHz generator card, which provides sine signals with low phase noise to 4 external outputs.
The card has a microprocessor system, which monitors the output signals and generates status signals for the
upper-level management system accordingly.
Function of Operation
The card has a high quality oscillator, which is locked to an external 10 MHz signal. The microprocessor
monitors the lock status of the PLL and the warm up phase of the oscillator. It activates the outputs only after
the phase is locked. This condition is signalized by all LEDs switched from green to red. In the phase locked
state the output levels of the four outputs are monitored and in case of a failure signalized by an associated
red LED.
Technical Specifications:
Frequency Input:
10 MHz, sine (1V
pp
min.) or TTL
Output Level:
5 dBm +/- 1 dBm at 50
Ω
Option: LNO-12dB with 12 dBm output level
Warm-up time:
< 3 @ 25
◦
C within accuracy of < +-1 x 10
-7
Electrical Connectors:
BNC female
Harmonics:
-60 dBc
Phase Noise:
OCXO SQ
1 Hz
-70 dBc/Hz
10 Hz
-105 dBc/Hz
100 Hz
-125 dBc/Hz
1 kHz
-140 dBc/Hz
OCXO HQ:
1 Hz
< -85 dBc/Hz
10 Hz
< -115 dBc/Hz
100 Hz
< -130 dBc/Hz
1 kHz
< -140 dBc/Hz
Terminal Connector:
96-pin VG-rail DIN 41612
Power Supply:
5 dBm
+5V @ 550 mA (steady state),
+5V @ 670 mA (warm up)
12 dBm:
+5V @ 970 mA (steady state),
+5V @ 620 mA (warm up)
Quartz Filter:
Bandwidth 1 kHz
Ambient Temperature:
0 ... 50
◦
C / 32 ... 122
◦
F
Storage Temperature:
-20 ... 70
◦
C / -4 ... 158
◦
F
Humidity:
max 85%
IMS - LANTIME M4000
Date: 2nd July 2020
115
