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C O N N O R THE CONNOR-WINFIELD CORP. 2111 COMPREHENSIVE DRIVE. 60505. W I N F I E L D AURORA, IL851-5040. FAX (630)
PHONE (630) 851-4722 HTTP://WWW.CONWIN.COM
NETWORK ELEMENT TIMING GENERATOR
STRATUM 3 SIMPLIFIED CONTROL TIMING MODULES (MSTM-S3)
MSTM-S3 PIN ASSIGNMENT
DESCRIPTION
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. 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. Control loop filters effectively attenuate any reference jitter and smooth out phase transients.
CNTL A CNTL B 2:4
+5Vdc EX REF 1 GND EX REF 2 GND CLK_OUT GND SYNC_OUT GND
HOLDOVER REF 1 REF 2 FRERUN GND ALARM OUT CNTL A CNTL B PLL TVL
BOTTOM VIEW
BLOCK DIAGRAM
0 1 2 3 FRERUN REF 1 REF 2 HOLDOVER PLL TVL FREE RUN HOLDOVER ALARM OUT
EX REF 1 EX REF 2
2:1 MUX
PHASE COMPARATOR
LOCK AND DETECTION
2:1 MUX DAC FILTERS DAC STRATUM3 VCXO
SYNC_OUT
TUNING VOLTAGE MONITOR PLL TVL
FIFO
STRATUM3 TCXO CLK_OUT
MSTM-S3
CONT ROL INPUT A 0 1 B 0 0 External Reference #1 External Reference #2
OPERAT IONAL MODE
REF 1
REF 2
HLDOVER
FRERUN
PLL_T VL*
ALARM OUT PUT 1 0 1 1 0 1 1 1
Free Run (Default) Normal Tune Limit LOS + LOL Normal Tune Limit LOS + LOL Holdover
0 1 1 1 0 0 0 0
0 0 0 0 1 1 1 0
0 0 0 0 0 0 0 1
1 0 0 0 0 0 0 0
0 0 1 0 0 1 0 0
0 1
INT
1 1
Specifications subject to change without notice. PAGE______ OF _______ 1 6 REV:________ DATE:____________ (c) Copyright 1999 Connor-Winfield all rights reserved. 02 6/2/99
DATA SHEET #: ____________ TM007
C O N N O R THE CONNOR-WINFIELD CORP. 2111 COMPREHENSIVE DRIVE. 60505. W I N F I E L D AURORA, IL851-5040. FAX (630)
PHONE (630) 851-4722 HTTP://WWW.CONWIN.COM
NETWORK ELEMENT TIMING GENERATOR
STRATUM 3 SIMPLIFIED CONTROL TIMING MODULES (MSTM-S3)
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Copyright 1998 Connor-W infield alll rights res erved
INT DATA SHEET #: ____________ TM007 PAGE______ OF _______ 2 6
Specifications subject to change without notice. REV:________ DATE:____________ (c) Copyright 1999 Connor-Winfield all rights reserved. 02 6/2/99
C O N N O R THE CONNOR-WINFIELD CORP. 2111 COMPREHENSIVE DRIVE. 60505. W I N F I E L D AURORA, IL851-5040. FAX (630)
PHONE (630) 851-4722 HTTP://WWW.CONWIN.COM
NETWORK ELEMENT TIMING GENERATOR
STRATUM 3 SIMPLIFIED CONTROL TIMING MODULES (MSTM-S3)
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INT DATA SHEET #: ____________ TM007 PAGE______ OF _______ 3 6
Specifications subject to change without notice. REV:________ DATE:____________ (c) Copyright 1999 Connor-Winfield all rights reserved. 02 6/2/99
C O N N O R THE CONNOR-WINFIELD CORP. 2111 COMPREHENSIVE DRIVE. 60505. W I N F I E L D AURORA, IL851-5040. FAX (630)
PHONE (630) 851-4722 HTTP://WWW.CONWIN.COM
NETWORK ELEMENT TIMING GENERATOR
STRATUM 3 SIMPLIFIED CONTROL TIMING MODULES (MSTM-S3)
TABLES OF CONTENTS
TABLE 1.0
SYMB OL V cc VIN TSTG
NOTE 1.0:
ABSOLUTE MAXIMUM RATING
MIN IMU M -0.5 -0.5 -65.0 N OMIN AL MAXIMU M +7.0 Vcc+0.5 +150.0 U N ITS Volts Volts deg. C N OTES 1.0 1.0 1.0
PAR AMETER Power supply voltage (Vcc to GND ) Input voltage wi th respect to ground Storage temperature
TABLE 2.0
SYMBOL VIH VIL TIN CIN VOH VOL THL TLH TRIP TRIN TOP1 TOP2
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
MINIMUM 2.0 0 NOMINAL
PARAMET ER High level input voltage (TTL Compatible) Low level input voltage (TTL Compatible) Input signal transition time Input capacitance High level output voltage @ IOH= -8.0 mA, Vcc minimum Low level output voltage @ IOL= 8.0 mA, Vcc maximum Clock out transition time high-to-low, no load Clock out transition time low -to-high, no load Input 8 KHz reference signal positive pulse w idth Input 8 KHz reference signal negative pulse w idth Standard Operating Temperature Optional Operating Temperature
MAXIMUM Vcc 0.8 250 15
UNIT S V V nS pF V
NOT ES
3.86 0.4 4.0 4.0 30 30 0 0 50 70
V nS nS nS nS deg. C deg. C 8.0
TABLE 3.0
PARAMET ER Frequency Range Supply Current Timing Reference Inputs Jitter and Phase Tolerance Wander Generation Free-Run Accuracy Holdover Stability Initial Offset Temperature Drift Holdover History Pull-in / Hold-in Range Lock Time Correction Period TVL Alarm INT
DATA SHEET #: ____________ TM007 PAGE______ OF _______ 4 6
SPECIFICATIONS
NOT ES 16.384 MHz , 19.44 MHz 60 mA Typical at 16.384 MHz 8 KHz Ref-GR-1244-CORE 4.2-4.4 Ref-GR-1244-CORE 5.3 4.6 ppm 0.37 ppm 0.05 ppm 0.28 ppm 0.04 ppm 30 seconds 4.6 ppm Minimum < 100 secs 125 uS 1= WARNING: Reference nearing operational limit 7.0
Specifications subject to change without notice. REV:________ DATE:____________ (c) Copyright 1999 Connor-Winfield all rights reserved. 02 6/2/99
5.0 9.0 6.0
2.0
3.0
C O N N O R THE CONNOR-WINFIELD CORP. 2111 COMPREHENSIVE DRIVE. 60505. W I N F I E L D AURORA, IL851-5040. FAX (630)
PHONE (630) 851-4722 HTTP://WWW.CONWIN.COM
NETWORK ELEMENT TIMING GENERATOR
STRATUM 3 SIMPLIFIED CONTROL TIMING MODULES (MSTM-S3)
MSTM-S3 PIN # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 HOLDOVER REF _1 REF_2 FRERUN Gnd ALARM_OUT CNTL_A CNTL_B PLL_TVL Gnd SYNC_OUT Gnd CLK_OUT Gnd EX_REF_2 Gnd EX_REF_1 +5 Vdc
PIN DESCRIPTION
-Output. High when the control inputs select Holdover. -Ouput. High when the control inputs select EX REF_1. -Output. High when the control inputs select EX REF_2. -Output. High when the control input selects Free Run. -Ground. -Ouput. =1,If (FRERUN + HOLDOVER + LOS + LOL + PLL_TVL) . -Mode control input. -Mode control input. -Tuning Voltage Alarm. =1 If CAPTURE RANGE NEAR 10% OF EXTREME (~11ppm). -Ground. -Syncronized output. -Ground. -Stratum 3 TCXO output. (Non-synchronized). -Ground. -External Reference #2 Input. (8 KHz) -Ground. -Input. External Reference #1 Input. (8 KHz) +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. 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. After 100 seconds at stable room temperature. Consult factory for other output frequencies. Ref- GR1244-CORE 3.2.1 R3-1. 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. Add -T2 to model number. Consult factory for power dissipation of -T2 (0 to +70 deg. C.) devices. Specifications subject to change without notice. PAGE______ OF _______ 5 6 REV:________ DATE:____________ (c) Copyright 1999 Connor-Winfield all rights reserved. 02 6/2/99
3.0 4.0 5.0 6.0 7.0 8.0 9.0 INT
DATA SHEET #: ____________ TM007
C O N N O R THE CONNOR-WINFIELD CORP. 2111 COMPREHENSIVE DRIVE. 60505. W I N F I E L D AURORA, IL851-5040. FAX (630)
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
NETWORK TIMING REFERENCE INPUT eg. BITS CLOCK,etc. FREE RUN CLOCK COPY
5 VOLT DC POWER SUPPLY
BLOCK DIAGRAM BLOCK DIAGRAM
+5Vdc EX REF 1 GND EX REF 2 GND CLK_OUT GND SYSTEM CLOCK SYNC_OUT GND
HOLDLAST REF 1 REF 2 FRERUN GND ALARM OUT CNTL A CNTL B PLL TVL
SYSTEM CONTROL AND DATA INPUTS
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 PAGE______ OF _______ 6 6
Specifications subject to change without notice. REV:________ DATE:____________ (c) Copyright 1999 Connor-Winfield all rights reserved. 02 6/2/99

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