Microsemi SA.45s, Руководство пользователя

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SA.45s Chip-Scale Atomic Clock
SA.45s CSAC User Guide Revision D 5
Table 2 • SA45s CSAC Pinout
PIN I.D.
1 Tune
Bottom view
2 N/A
3 N/A
4 BITE
5 Tx
6 Rx
7 VCC
8 GND
9 1PPS input
10 1PPS output
11 N/A
12 RF output
Note: Pins labeled N/A are not present in the SA.45s.
3.2.5 Recommended Operating Characteristics
The SA.45 pinout is shown in the previous table . The electrical function of each pin is shown in the
following table.
Table 3 • Recommended Operating Characteristics
PIN Function Level Reference Section
1 Analog tuning input 1 0 V–2.5 V "Analog Tuning" section (see page
14)
4 Built-in test
equipment (BITE)
2
LogicH > 2.8 V
LogicL < 0.3 V
"Built-In Test Equipment (BITE)"
section (see page 7)
5, 6 RS232 2.8 V < LogicH < V
CC
0 V < LogicL < 0.3 V
"Programmers Reference" section
(see page 17)
7 VCC 3.3 VDC ± 0.1 VDC
8 Ground
9 1PPS in 3 2.5 V < LogicH < V
CC
0 V < LogicL < 0.5 V
10 1PPS out 4, 5 2.8 V < LogicH < V
CC
0 V < LogicL < 0.3 V
"1PPS Output" section (see page
10)
12 RF out 2.8 V < LogicH < V
CC
0 V < LogicL < 0.3 V
"RF Output Characteristics" section
(see page 7)