stm-s3e Connor-Winfield VCXOs, stm-s3e Datasheet - Page 6

• Manufacturer Part Number: stm-s3e
• Description: Stratum 3e Timing Module
• Manufacturer: Connor-Winfield VCXOs

Functional Truth Table
Table 8
the Sync_Out pin. Variations in the output frequency are due only to the drift of the OCXO.
*Psuedo-Hold Over is a condition when the module is no longer tracking a reference and is holding the last output that was sent to
CNTLB CNTLA
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
1
1
1
1
1
1
0
0
0
0
0
0
1
1
Mode
Free Run
Free Run
Reference #1
Reference #1
Reference #1
Reference #1
Reference #1
Reference #1
Reference #2
Reference #2
Reference #2
Reference #2
Reference #2
Reference #2
Hold Over
Hold Over
© Copyright 2003 The Connor-Winfield Corp. All Rights Reserved
Status1Status0 Alarm RFL
Preliminary Data Sheet #: TM038
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
1
1
1
1
1
1
0
0
0
0
0
0
1
1
1
1
0
1
0
0
0
1
0
1
0
0
0
1
1
1
0
1
0
0
1
0
0
0
0
0
1
0
0
0
0
1
LOR
0
0
0
0
0
1
0
0
0
0
0
1
0
0
0
0
Page 6 of 16
PBO
0
0
0
0
0
0
1
1
0
0
0
0
1
1
0
0
Specifications subject to change without notice
Condition
Normal Operation
Unit is in Fast Acquire mode
Output freq. is 15 ppm or more
from Free Run mode freq.
Selected reference signal is not
detected and unit is in pseudo-
Hold Over*
Phase build-out is occuring on
selected reference
Phase build-out is occuring and
has continuously occurred for at
least 0.4 seconds and the unit is
in pseudo-Hold Over*
Normal Operation
Unit is in Fast Acquire mode
Output freq. is 15 ppm or more
from Free Run mode freq.
Selected reference signal is not
detected and unit is in pseudo-
Hold Over*
Phase build-out is occuring on
selected reference
Phase build-out is occuring and
has continuously occurred for at
least 0.4 seconds and the unit is
in pseudo-Hold Over*
Rev: P01
Date: 06/11/03