Microchip LN-CSAC-SA65 handleiding
Handleiding
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LN-CSAC Model SA65-LN User’s Guide
2024 Microchip Technology Inc. and its subsidiaries DS50003805A-page 31
Alarms indicate detection of out-of-range measurements. Alarms may appear momentarily, due
to statistical variation of signals, which do not necessarily indicate performance degradation. If
any alarm, other than 0x008, persists for longer than 1 second, a reboot is initiated.
TABLE 3-4: STATUS CODES OF LN-CSAC
Status Acquisition Stage
8 Initial warm-up
7 Heater equilibration
6 Microwave power acquisition
5 Laser current acquisition
4 Laser power acquisition
3 Microwave frequency acquisition
2 Microwave frequency stabilization
1 Microwave frequency steering
0 Locked
Note: If LN-CSAC returns a status code other than shown in Table 3-4, then it is
re-acquiring its set points. In this case, warm-up time takes longer than
stated on the data sheet. To avoid this, it is recommended to always allow
LN-CSAC to remain powered on for >102 seconds after it acquires LOCK.
The minimum amount of time necessary to save LN-CSAC set points to
memory is 102 seconds, thus avoiding set-point re-acquisition upon its next
power up.
TABLE 3-5: ALARM CODES
Alarm Definition Alarm Limit
0x0001 Signal contrast low Contrast <1000
0x0002 Synthesizer tuning at limit
Synthesizer detuned from calibration
by >30 kHz or <–15 kHz
0x0004 Temperature bridge unbalanced Bridge—set-point >±20 mV
0x0008 Heater Boosted (Note 1) Heater boost is actively boosting
0x0010 DC light level low (Set-point - DCL) > ±0.1V
0x0020 DC Light level high DCL - set-point) > ±0.1V
0x0040 Heater voltage low <30 mV
0x0080 Heater voltage high >2.48V
0x0100 µW power control low <20 mV
0x0200 µW power control high >2.48V
0x0400 TCXO power control low <0.1V
0x0800 TCXO power control high >2.4V
0x1000 Laser current low <0.5 mA
0x2000 Laser current high >2.3 mA
0x4000 Stack overflow (firmware error) —
Note 1: Alarm 0x0008 is a non-fatal alarm, provided for information only, and will not initiate
a reboot.
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Productinformatie
| Merk | Microchip |
| Model | LN-CSAC-SA65 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 6392 MB |
