Microchip LN-CSAC-SA65 handleiding
Handleiding
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LN-CSAC Model SA65-LN User’s Guide
DS50003805A-page 30 2024 Microchip Technology Inc. and its subsidiaries
TABLE 3-3: TELEMETRY PARAMETERS (FIRMWARE VERSION 2.3)
Identifier Description Comments String Length
Status Unit status See
Table 3-4 and Note 1 Up to 2 decimal digits
(2 characters)
Alarm Pending unit alarms See
Table 3-5 and Note 2 “0x” + 4 hexadecimal digits
(6 characters max.)
SN Unit serial number See Note 3 11 characters
Mode Mode of operation See
Table 3-6 “0x” + 4 hexadecimal digits
(6 characters max.)
Contrast Indication of signal level Typically >1000 when locked,
and ≈0 when unlocked
16 bits unsigned
(5 characters max.)
LaserI Laser current (mA) Typically 0.6 mA to 1.3 mA 16 bits unsigned + “.”
+ 2 digits precision (8 characters
max.)
TCXO Tuning voltage (V) 0 VDC to 2.5 VDC tuning range,
≈±10 × 106
16 bits unsigned + “.” + 3 digits
precision, maximum value is
400.03 (6 characters max.)
HeatP Physics package heater
power (mW)
Typical 6 mW to 20 mW under
normal operating conditions
and 25°C ambient
16 bits unsigned + “.” + 2 digits
precision, maximum value is
250.0 (6 characters max.)
Sig DC signal level (V) Typical 0.8V to 1.7V under
normal operating conditions
16 bits unsigned + “.” + 3 digits
precision, maximum value is
2.490 (5 characters max.)
Temp Unit temperature (°C) Absolute accuracy is ±2°C 16 bits unsigned + “.” + 2 digits
precision, range is –54.19 to
159.65 (6 characters max.)
Steer Frequency adjust In pp10
12
32 bits signed (11 characters
max.)
OCXOCur-
rent
Current used by internal EMXO Typically around 0.040A at
25°C when locked
16 bits unsigned + “.” + 3 digits
precision, maximum value is
3.300, accuracy is limited to 1%
Phase Difference between
PPSOUT and PPSIN (ns)
Reports “---” if no PPSIN
detected for >2 seconds
32 bits signed, range is
±500000000 nano- seconds
(10 characters max.)
DiscOK Discipline status (0-2) 0 = acquiring, 1 = locked,
2 = holdover when disciplining
enabled, otherwise ---
“0", “1", “2" or “---“ (3 characters
max.)
TOD Time (seconds) Starts at 0 upon power-up
unless set by command
32 bits unsigned (10 characters
max.)
LTime Time since lock (seconds) Starts at 0 upon lock 31 bits unsigned (10 characters
max.)
FWver Firmware version M.m where M is major revision
and m is minor revision
“2.0” (4 characters, may be longer
in future firmware)
Note 1: Status reflects the steps of the clock initialization process. It starts at 8 on boot and decreases to 0 as
acquisition proceeds. When Status ≠ 0, BITE = 1. When Status = 0, BITE = 0.
2: Alarms indicate detection of anomalous operating conditions while locked. Alarm is the logical OR of all
pending alarms, as shown in
Table 3-4. An alarm will not persist if the condition is fixed or if the unit is
reset.
3: LN-CSAC serial numbers are of the form YYMMCSXXXXX where YYMM is the year and month of produc-
tion and XXXXX is the serialized production unit number.
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Productinformatie
| Merk | Microchip |
| Model | LN-CSAC-SA65 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 6392 MB |
