stm-s3e Connor-Winfield VCXOs, stm-s3e Datasheet - Page 4

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

Table 5
Control Inputs
Table 6
Pin #
internally.
internally.
CNTL B
1
3
4
5
6
7
8
9
10
14
15
16
17
18
19
20
21
22
23
24
2
11
12
13
0
0
1
1
Connection
Status 0
Status 1
LOR
PBO
GND
8 kHz Output
Reset
Tri-State
Hold Over Good
Mode Alarm
CNTL A
CNTL B
RFL
GND
Sync_Out
Future Use
GND
Clock_Out
Future Use
GND
External Reference 2
GND
External Reference 1
+3.3 V
CTNL A
0
1
0
1
DC
Mode Selected
Free Run
Reference 1
Reference 2
Hold Over
© Copyright 2003 The Connor-Winfield Corp. All Rights Reserved
Preliminary Data Sheet #: TM038
Description
Mode indicator.
Mode indicator.
Loss of Reference indicator. 1 = active reference has been lost.
Phase build out indicator. 1 = module is in a phase build out condition.
Ground
Derived from Sync_Out.
Master reset for the module. A low pulse will reset the module. A logic low for a minimum of
Tri-State control for all outputs. 1 = Hi-Z condition, 0 = Normal operation. Pin is pulled low
Indicates that the module has acquired enough data to provide an average Hold Over value.
Alarm indicator output. 1 = Alarm condition, 0 = Normal operation.
Mode control input. Pin is pulled low internally.
Mode control input. Pin is pulled low internally.
Reference frequency limit alarm for the phase locked loop. 1= Unit is ±15 ppm from Free Run freq.
Ground
System clock output
Reserved for future use. Do not assert this pin
Ground
An independent, Stratum 3 clock output with the required ±4.6 ppm accuracy. May be used as
general purpose clock
Reserved for future use. Do not assert this pin
Ground
External reference #2 input
Ground
External reference #1 input
+3.3 Volt DC supply
Pin Description
1 s is recommended to ensure a complete reset. This pin is pulled high
Status Outputs
Table 7
Status 1
0
0
1
1
Page 4 of 16
Status 0
0
1
0
1
Specifications subject to change without notice
Free Run
Hold Over
Mode
Reference 1
Reference 2
Rev: P01
Date: 06/11/03