SA.45s Chip-Scale Atomic Clock
SA.45s CSAC User Guide Revision D
4
3.2.2
Packaging
Retain the original CSAC ESD-safe packaging material in the event that the device needs to be returned
to Microsemi for service.
3.2.3
Absolute Minimum and Maximum Ratings
The following table indicates the absolute minimum and maximum ratings to which the CSAC can be
subjected without permanent unrecoverable damage.
The CSAC cannot be expected to perform normally when operated outside of the recommended
Note:
operating conditions. All ratings apply at 25°C, unless otherwise noted.
Table 1 • Absolute Maximum Ratings
Parameter
Rating
Supply voltage (V )
CC
0 V–4.1 V
Analog tuning voltage
0 V–V
CC
Maximum current draw
1PPS input, RS232, BITE: ±2 mA
1PPS output, RF output: ±20 mA
Storage temperature
–55 °C to 85 °C
Note:
3.2.4
Mechanical Interface and Mounting Considerations
The physical dimensions of the SA.45s CSAC are 1.6" x 1.4" x 0.45" H. The following illustration shows
the detailed dimensions of CSAC. The CSAC baseplate and cover are 80% nickel-iron magnetic alloy per
ASTM A753, Type 4 (Mu-Metal or Hy-Mu80™).
Figure 2 • CSAC Mechanical Drawing
following table
The
shows the pinout of the SA.45s CSAC.
