C O N N O R THE CONNOR-WINFIELD CORP.
2111 COMPREHENSIVE DRIVE.
IL 60505.
W I N F I E L D AURORA,
FAX (630) 851-5040.
NETWORK ELEMENT TIMING GENERATOR
STRATUM 3 SIMPLIFIED CONTROL
TIMING MODULES (MSTM-S3)
PHONE (630) 851-4722
HTTP://WWW.CONWIN.COM
DESCRIPTION
MSTM-S3 PIN ASSIGNMENT
The Connor-Winfield Stratum 3 Simplified Control
Timing Module acts as a complete system clock module for general
Stratum 3 timing applications. The MSTM is designed for
external control functions. Full external control input allows for
selection and monitoring of any of four possible operating states:
1) Holdover, 2) External Reference #1, 3) External Reference
#2, and 4) Free Run. The table below illustrates the control signal
inputs and corresponding operational states:
In the absence of External Control Inputs (A,B), the
MSTM enters the Free Run mode and signals an External Alarm.
The MSTM will enter other operating modes upon application of
a proper control signal. Mode 1 operation (A=1, B=0) results in
an output signal that is phase locked to the External Reference
Input #1. Mode 2 operation (A=0, B=1) results in an output signal
that is phase locked to External Reference Input #2. Holdover
mode operation (A=1, B=1) results in an output signal at or near
the frequency as determined by the latest (last) locked-signal input
values and the holdover performance of the MSTM.
+5Vdc
HOLDOVER
EX REF 1
REF 1
GND
EX REF 2
REF 2
FRERUN
GND
GND
CLK_OUT
ALARM OUT
GND
CNTL A
SYNC_OUT
CNTL B
GND
PLL TVL
BOTTOM VIEW
BLOCK DIAGRAM
0
CNTL A
Alarm signals are generated at the Alarm Output during
Holdover and Free Run operation. Alarm Signals are also
generated by loss-of-lock, loss of Reference, and by a Tune-Limit
indication from the PLL. A Tune-Limit alarm signal indicates
that the VCXO tuning voltage is approaching within 10% the limits
of its lock capability and that the External Reference Input may
be erroneous. A high level indicates an alarm condition. Realtime indication of the operational mode is available at unique
operating mode outputs on pins 1-4.
CNTL B
2:4
EX REF 1
EX REF 2
2:1
MUX
FRERUN
1
REF 1
2
REF 2
3
A
B
0
0
OPERAT IONAL MODE
1
0
External
Reference
#1
0
1
External
Reference
#2
1
1
HOLDOVER
ALARM
OUT
LOCK AND
DETECTION
PHASE
COMPARATOR
2:1
MUX
DAC
FILTERS
DAC
STRATUM3
VCXO
TUNING
VOLTAGE
MONITOR
FIFO
STRATUM3
TCXO
Control loop filters effectively attenuate any reference
jitter and smooth out phase transients.
CONT ROL
INPUT
PLL TVL
FREE RUN
HOLDOVER
SYNC_OUT
CLK_OUT
PLL TVL
MSTM-S3
REF 1
REF 2
HLDOVER
FRERUN
PLL_T VL*
ALARM
OUT PUT
Free Run (Default)
0
0
0
1
0
1
Normal
Tune Limit
LOS + LOL
1
1
1
0
0
0
0
0
0
0
0
0
0
1
0
0
1
1
Normal
Tune Limit
LOS + LOL
0
0
0
1
1
1
0
0
0
0
0
0
0
1
0
0
1
1
Holdover
0
0
1
0
0
1
INT
DATA SHEET #: ____________
TM007
Specifications subject to change without notice.
PAGE______
1
OF _______
6
REV:________
02
DATE:____________
6/2/99
© Copyright 1999 Connor-Winfield all rights reserved.
C O N N O R THE CONNOR-WINFIELD CORP.
2111 COMPREHENSIVE DRIVE.
IL 60505.
W I N F I E L D AURORA,
FAX (630) 851-5040.
NETWORK ELEMENT TIMING GENERATOR
STRATUM 3 SIMPLIFIED CONTROL
TIMING MODULES (MSTM-S3)
PHONE (630) 851-4722
HTTP://WWW.CONWIN.COM
X 67 5 $1 6,(1 7 5 (632 1 6(
7,(QV
7 LPHV
6 D P S OH : D Q G H U * H Q H U D WLR Q 7 ' ( 9 IR U 6 7 0 0 6 7 0 6 1.0E - 6
T ypical res pons e - 3000 s econd tes t - Jitter applied (2 UI @ 10 Hz )
ref date AP R 22 1998
kdh
10 0.0E - 9
10.0E - 9
F
H
V
9
(
'
7
7'( 9
1.0E - 9
* 5)LJ
* 5)LJ
10 0.0 E - 12
10.0E - 3
100 .0E - 3
1.0E +0
,Q WH J UD WLR Q 7 LP H V H F INT
DATA SHEET #: ____________
TM007
10 .0 E +0
100 .0E +0
1.0 E +3
Copyright 1998 Connor-W infield alll rights res erved
Specifications subject to change without notice.
PAGE______
2
OF _______
6
REV:________
02
DATE:____________
6/2/99
© Copyright 1999 Connor-Winfield all rights reserved.
C O N N O R THE CONNOR-WINFIELD CORP.
2111 COMPREHENSIVE DRIVE.
IL 60505.
W I N F I E L D AURORA,
FAX (630) 851-5040.
PHONE (630) 851-4722
HTTP://WWW.CONWIN.COM
NETWORK ELEMENT TIMING GENERATOR
STRATUM 3 SIMPLIFIED CONTROL
TIMING MODULES (MSTM-S3)
6DPSOH07,('DWDIRU670606706
1.0E-6
T ypical response- 3000 second test - Jitter applied (2 UI @ 10 Hz)
ref dateAPR 22 1998
kdh
07,(V
100.0E-9
10.0E-9
07,(
0DVN$
0DVN%
0DVN
*5
1.0E-9
100.0E-3
1.0E+0
10.0E+0
100.0E+0
2EVHUYDWLRQ7LPHV
INT
DATA SHEET #: ____________
TM007
1.0E+3
10.0E+3
Copyright 1998 Connor-Winfieldall rights reserved
Specifications subject to change without notice.
PAGE______
3
OF _______
6
REV:________
02
DATE:____________
6/2/99
© Copyright 1999 Connor-Winfield all rights reserved.
C O N N O R THE CONNOR-WINFIELD CORP.
2111 COMPREHENSIVE DRIVE.
IL 60505.
W I N F I E L D AURORA,
FAX (630) 851-5040.
NETWORK ELEMENT TIMING GENERATOR
STRATUM 3 SIMPLIFIED CONTROL
TIMING MODULES (MSTM-S3)
PHONE (630) 851-4722
HTTP://WWW.CONWIN.COM
TABLES OF CONTENTS
TABLE 1.0
SYMB OL
ABSOLUTE MAXIMUM RATING
PAR AMETER
MIN IMU M
N OMIN AL
MAXIMU M
U N ITS
N OTES
V cc
Power supply voltage (Vcc to GND )
-0.5
+7.0
Volts
1.0
VIN
Input voltage wi th respect to ground
-0.5
Vcc+0.5
Volts
1.0
TSTG
Storage temperature
-65.0
+150.0
deg. C
1.0
NOTE 1.0:
TABLE 2.0
Operation of the device at these or any other conditions beyond those listed under Rocommended Operating
Conditions is not implied. Exposure to Absolute Maximum Ratings conditions for extended periods of time may affect device reliability.
INPUT AND OUTPUT CHARACTERISTICS
SYMBOL
PARAMET ER
MINIMUM
VIH
High level input voltage (TTL Compatible)
VIL
Low level input voltage (TTL Compatible)
TIN
NOMINAL
MAXIMUM
UNIT S
2.0
Vcc
V
0
0.8
V
Input signal transition time
250
nS
CIN
Input capacitance
15
pF
VOH
High level output voltage @ IOH= -8.0 mA,
Vcc minimum
VOL
Low level output voltage @ IOL= 8.0 mA,
Vcc maximum
THL
Clock out transition time high-to-low, no
load
4.0
nS
TLH
Clock out transition time low -to-high, no
load
4.0
nS
TRIP
Input 8 KHz reference signal positive pulse
w idth
30
nS
TRIN
Input 8 KHz reference signal negative pulse
w idth
30
nS
3.86
V
0.4
V
TOP1
Standard Operating Temperature
0
50
deg. C
TOP2
Optional Operating Temperature
0
70
deg. C
TABLE 3.0
NOT ES
8.0
SPECIFICATIONS
PARAMET ER
NOT ES
Frequency Range
Supply Current
Timing Reference Inputs
Jitter and Phase Tolerance
16.384 MHz , 19.44 MHz
5.0
60 mA Typical at 16.384 MHz
9.0
8 KHz
6.0
Ref-GR-1244-CORE 4.2-4.4
Wander Generation
Ref-GR-1244-CORE 5.3
Free-Run Accuracy
±4.6 ppm
Holdover Stability
±0.37 ppm
Initial Offset
0.05 ppm
Temperature
0.28 ppm
Drift
0.04 ppm
Holdover History
30 seconds
Pull-in / Hold-in Range
±4.6 ppm Minimum
Lock Time
3.0
< 100 secs
Correction Period
125 uS
TVL Alarm
INT
DATA SHEET #: ____________
TM007
2.0
1= WARNING: Reference nearing operational limit
7.0
Specifications subject to change without notice.
PAGE______
4 OF _______
6
REV:________
02
DATE:____________
6/2/99
© Copyright 1999 Connor-Winfield all rights reserved.
C O N N O R THE CONNOR-WINFIELD CORP.
2111 COMPREHENSIVE DRIVE.
IL 60505.
W I N F I E L D AURORA,
FAX (630) 851-5040.
NETWORK ELEMENT TIMING GENERATOR
PHONE (630) 851-4722
HTTP://WWW.CONWIN.COM
STRATUM 3 SIMPLIFIED CONTROL
TIMING MODULES (MSTM-S3)
PIN DESCRIPTION
MSTM-S3
PIN #
1
HOLDOVER
-Output. High when the control inputs select Holdover.
2
REF _1
-Ouput. High when the control inputs select EX REF_1.
3
REF_2
-Output. High when the control inputs select EX REF_2.
4
FRERUN
-Output. High when the control input selects Free Run.
5
Gnd
-Ground.
6
ALARM_OUT
-Ouput. =1,If (FRERUN + HOLDOVER + LOS + LOL + PLL_TVL) .
7
CNTL_A
-Mode control input.
8
CNTL_B
-Mode control input.
9
PLL_TVL
-Tuning Voltage Alarm. =1 If CAPTURE RANGE NEAR 10% OF EXTREME (~11ppm).
10
Gnd
-Ground.
11
SYNC_OUT
-Syncronized output.
12
Gnd
-Ground.
13
CLK_OUT
-Stratum 3 TCXO output. (Non-synchronized).
14
Gnd
-Ground.
15
EX_REF_2
-External Reference #2 Input. (8 KHz)
16
Gnd
-Ground.
17
EX_REF_1
-Input. External Reference #1 Input. (8 KHz)
18
+5 Vdc
+5 Volt DC supply.
NOTES FOR TABLES 1-3
NOTES:
2.0
Holdover stability is the cumulative fractional frequency offset containing Initial Offset, Temperature, and Drift components as described by
Bellcore GR-1244-CORE 5.2.
3.0
Pull-in range is the minimum frequency deviation on the reference inputs to the timing module that can be overcome to pull itself into synchronization
with the reference.
4.0
After 100 seconds at stable room temperature.
5.0
Consult factory for other output frequencies.
6.0
Ref- GR1244-CORE 3.2.1 R3-1.
7.0
A 1 level indicates unit is within the extreme 10% of its operating range tracking the reference (~11ppm). Consult factory for use as a reference
quilifier.
8.0
Add -T2 to model number.
9.0
Consult factory for power dissipation of -T2 (0 to +70 deg. C.) devices.
INT
DATA SHEET #: ____________
TM007
Specifications subject to change without notice.
PAGE______
5 OF _______
6
REV:________
02
DATE:____________
6/2/99
© Copyright 1999 Connor-Winfield all rights reserved.
C O N N O R THE CONNOR-WINFIELD CORP.
2111 COMPREHENSIVE DRIVE.
IL 60505.
W I N F I E L D AURORA,
FAX (630) 851-5040.
PHONE (630) 851-4722
HTTP://WWW.CONWIN.COM
NETWORK ELEMENT TIMING GENERATOR
STRATUM 3 SIMPLIFIED CONTROL
TIMING MODULES (MSTM-S3)
APPLICATIONS CIRCUIT DIAGRAM
MSTM-S3
PACKAGE
WITH COVER
BLOCK
BLOCK DIAGRAM
DIAGRAM
5 VOLT DC
POWER
SUPPLY
NETWORK
TIMING
REFERENCE
INPUT
eg. BITS CLOCK,etc.
FREE RUN
CLOCK COPY
+5Vdc
HOLDLAST
EX REF 1
REF 1
GND
REF 2
EX REF 2
FRERUN
GND
CLK_OUT
GND
SYSTEM
CLOCK
SYNC_OUT
GND
SYSTEM
CONTROL
AND DATA
INPUTS
GND
ALARM OUT
CNTL A
CNTL B
PLL TVL
LOSS OF
REFERENCE
MONITOR
SECTION
MECHANICAL CHARACTERISTICS
MECHANICAL SHOCK 883D 2002 CONDITION B
1500 Gs 0.5 ms.
VIBRATION 883D-2007 C0NDITION A
0.06 DA or 20 g Peak Acceleration 20 to 2000 Hz.
BOTTOM VIEW
ENVIRONMENTAL CHARACTERISTICS
TEMPERATURE CYCLE 883D METHOD 1010.7 CONDITION B
10 Cycles -55 to +125 Degrees C.
HTOB - HIGH TEMPERATURE OPERATING BIAS
1000 Hours +125 Degrees C.
FACTORY RELIABILITY AUDIT
TEMPERATURE CYCLE
500 Cycles -55 to +125 Degrees C.
HTOB - HIGH TEMPERATURE OPERATING BIAS
1000 Hours +125 Degrees C.
PARTS TO BE QUALIFIED TO BELLCORE TR-NWT-00357
TEMPERATURE CYCLE
-40 to +85 Degrees C.
72 HOUR BURN-IN
+25 Degrees C.
INT
DATA SHEET #: ____________
TM007
Specifications subject to change without notice.
PAGE______
6 OF _______
6
REV:________
02
DATE:____________
6/2/99
© Copyright 1999 Connor-Winfield all rights reserved.