MSTM-S3-TR-16.384M

MSTM-S3-TR Stratum 3 Timing Module 2111 Comprehensive Drive Aurora, Illinois 60505 Phone: 630- 851- 4722 Fax: 630- 851- 5040 www.conwin.com Bulletin Page Revision Date Issued By TM027 1 of 16 P05 02 DEC 02 MBatts Application Features The Connor-Winfield MSTM-S3-TR Simplified Control Timing Module acts as a complete system clock module for Stratum 3 timing applications in accordance with GR1244, Issue 2 and GR-253, Issue 3. Connor Winfield’s Stratum 3 timing modules helps reduce the cost of your design by minimizing your development time and maximizing your control of the system clock with our simplified design. • 5V Miniature Timing Module • Redundant References • 2 Synchronous Outputs Available From 8 kHz to 77.76MHz • 40 sec., Filtered, Hold Over History • Operational Status Flags General Description Functional Block Diagram 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 to replace similar units from TF Systems (TF118B) and Raltron (SY0001B). 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. Table #1 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) lockedsignal input values and the holdover performance of the MSTM. Free Run ModeFree Run mode operation (A=0, B=0) is a guaranteed output of 4.6 ppm of the nominal frequency. Alarm signals are generated at the Alarm Output during Holdover and Free Run operation. Alarm Signals are also generated by Loss-of-Lock and Loss-of-Reference conditions. A high level indicates an alarm condition. Real-time indication of the operational mode is available at unique operating mode outputs on pins 1-4. Control loop 0.1 Hz filters effectively attenuate any reference jitter, smooth out phase transients, comply with wander transfer and jitter tolerances. Figure 1 1 Free Run CNTL A 2 Ref #1 CNTL B 3 Ref #2 4 Hold Over Free Run PLL_TVL Hold Over Tuning Voltage Monitor Ex Ref 1 Ref Control Ex Ref 2 Alarm_Out Holdover FIFO LOL & LOR Phase Build Out Circuit DPLL DAC Stratum3 OCXO Sync_Out ÷N Opt_Out* Reference Clock *Only one Opt_Out option is available per module Function Control Table Table 1 CNTL A CNTL B Operational Mode 0 0 1 0 External Reference #1 0 1 External Reference #2 1 1 Ref 1 Free Run (Default Mode) Ref 2 Hold Over Free Run PLL Unlock Alarm Out 0 0 0 1 0 1 Normal PLL_Unlock LOR 1 1 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 1 Normal PLL_Unlock LOR 0 0 0 1 1 0 0 0 1 0 0 0 0 1 0 0 0 1 0 0 1 0 0 1 Hold Over Absolute Maximum Rating Table 2 Symbol Parameter Minimum Maximum Units Notes VCC Power Supply Voltage -0.5 Nominal 7.0 Volts 1.0 VI Input Voltage -0.5 VCC + 0.5 Volts 1.0 Ts Storage Temperature -55 100 deg. C 1.0 Data Sheet #: TM027 Page 2 of 16 Rev: P05 Date: 12 / 02 / 02 © Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice Recommended Operating Conditions Table 3 Symbol Parameter Minimum Nominal Maximum Units Vcc Power supply voltage 4.75 5.00 5.25 Volts VTH Reset threshold voltage 4.25 4.5 Volts VIH High level input voltage - TTL 2.0 VCC Volts VIL Low level input voltage - TTL 0 tIN Input signal transition - TTL CIN Input capacitance VOH High level output voltage, IOH = -4.0mA, VCC = min. VOL Low level output voltage, IOL = 12.0 mA, VCC = min. tTRANS Clock output transition time tPULSE 8kHz input reference pulse width( positive or negative) 30 TOP Operating temperature 0 2.4 0.8 Volts 250 ns 15 pF 5.25 Volts 0.4 Volts 4.0 Notes 2.0 ns ns 70 °C Specifications Table 4 Parameter Specifications Frequency Range (Sync_Out) 8 kHz to 77.76 MHz Notes Frequency Range (Opt_Out) 8 kHz to 77.76 MHz Supply Current 250 mA typical, 400 mA during warm-up (Maximum) Timing Reference Inputs 8 kHz - 19.44 MHz Jitter, Wander and Phase Transient Tolerances GR-1244-CORE 4.2-4.4, GR-253-CORE 5.4.4.3.6 3.0 Wander Generation GR-1244-CORE 5.3, GR-253-CORE 5.4.4.3.2 Wander Transfer GR-1244-CORE 5.4 Jitter Generation GR-1244-CORE 5.5, GR-253-CORE 5.6.2.3 Jitter Transfer GR-1244-CORE 5.5, GR-253-CORE 5.6.2.1 Phase Transients GR-1244-CORE 5.6, GR-253-CORE 5.4.4.3.3 Free Run Accuracy 4.6 ppm over TOP Hold Over Stability ±0.37 ppm for initial 24 hrs Inital Offset ±0.05 ppm Temperature ±0.28 ppm Drift ±0.04 ppm Maximum Hold Over History 40 seconds Pull-in/ Hold-in Range ±13.8 ppm minimum Lock Time 30 seconds typical DPLL Bandwidth < 0.1 Hz NOTES: 1.0: Stresses beyond those listed under Absolute Maximum Rating may cause damage to the device. Operation beyond Recommended Conditions is not implied. 4.0: 2.0: Logic is 3.3V CMOS 5.0: 3.0 GR-1244-CORE 3.2.1 4.0 5.0 Hold Over stability is the cumulative fractional frequency offset as described by GR-1244-CORE, 5.2 Pull-in Range is the maximum frequency deviation from nominal clock rate on the reference inputs to the timing module that can be overcome to pull into synchronization with the reference Data Sheet #: TM027 © Copyright 2001 The Connor-Winfield Corp. Page 3 of 16 Rev: P05 Date: 12 / 02 / 02 All Rights Reserved Specifications subject to change without notice Pin Description Table 5 Pin # Connection Description 1 Hold Over Indicator output. High output when Hold Over mode is selected by control pins. 2 Ref 1 Indicator output. High output when Ref 1 mode is selected by control pins. 3 Ref 2 Indicator output. High output when Ref 2 mode is selected by control pins. 4 Free Run Indicator output. High output when Free Run mode is selected by control pins. 5 GND Ground 6 Alarm _Out Alarm output. High output if module is in Free Run, or Hold Over, or LOR. 7 CNTL A Mode control input 8 CNTL B Mode control input 9 PLL_Unlock Indicates that the PLL is not locked to a reference. 10 Tri-State/GND 0 = Normal operation, 1= Tri-State. Pin is pulled low internally. Ground pin for normal operation. 11 Sync_Out Primary timing output signal. Signal is sychronized to reference. 12 GND Ground 13 Opt_Out Secondary output signal. Signal is derived from Sync_Out or from an internal reference clock depending upon the choosen configuration. 14 GND Ground 15 Ex_Ref_2 External Input Reference #2 16 GND Ground 17 Ex_Ref_1 External Input Reference #1 18 Vcc +5V dc supply Ordering Information MSTM-S3-TR-(Input Reference Frequency)(Opt_Out Frequency)-(Primary Output) 1= 1.544 MHz 2= 2.048 MHz 8= 8 kHz 9= 19.44 MHz S= Other Primary Output ÷ N option: 2= 2.048 MHz 8= 8 kHz N= No output S= Other Reference Clock Out option: 6= 16.384 MHz 9= 19.44 MHz 02.048M = 2.048MHz 016.384M = 16.384 MHz 019.44M = 19.44 MHz 032.768M = 32.768 MHz 038.88 M = 38.88 MHz 077.76 M = 77.76 MHz Example: MSTM-S3-TR-88-038.88M Data Sheet #: TM027 Page 4 of 16 Rev: P05 Date: 12 / 02 / 02 © Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice Typical Application Figure 2 BITS System Signal Input Select Line Card 1 S A CW’s SCG 2000/4000 MUX A MUX B B CW’s STM/MSTM module Y Y Clock out S RCV Line Card N Timing Card #N S A A MUX B MUX CW’s STM/MSTM module Y B CW’s SCG 2000/4000 Y Clock out RCV S System Select Typical System Test Set-up Figure 3 G P S or LO R AN T im in g S o u r c e T h is d e v ic e s u p p lie s s y s te m tim e in f o r m a t io n . It c a n b e th o u g h t o f a s s u p p ly in g " a b s o lu te tim e " r e fe r e n c e in f o r m a t io n S a m p le M T IE D a t a fo r S T M -S 3 /M S T M - S 3 1 .0 E - 6 P o s s ib le C h o i c e s In c lu d e S ta n fo r d R e s e a r c h M o d e l: F S 7 0 0 T r u e tim e M o d e l X X X T y p i c a l r e s p o n s e - 3 0 0 0 s e c o n d t e s t - J it t e r a p p li e d ( 2 U I @ re f d a t e A P R 1 0 H z) 2 2 1 99 8 k dh M T IE (s 1 0 0 .0 E - 9 10 MHz M T IE 1 0 .0 E - 9 1 2 4 4 - 5 .2 M a s k ( A ) 1 2 4 4 - 5 .2 M a s k ( B ) 1 2 4 4 - 5 .6 M a s k G R 2 5 3 - 5 . 4 . 4 .3 . 2 1 .0 E - 9 1 0 0 .0 E - 3 1 .0 E + 0 1 0 .0 E + 0 1 0 0 .0 E + 0 O b s e r v a t io n T im e ( s ) 1 .0 E + 3 C o p y ri g h t 1 0 .0 E + 3 1 9 9 8 C o n n o r - W in f i e ld a l l r i g h t s re s e r v e d T a rg e t S y s te m U n d e r T e s t C lo c k o r B IT S lo g ic le v e l c lo c k in p u t ( T T L , C M O S , e tc .) A r b it r a r y W a v e fo r m G e n e ra to r [N o is e S o u rc e ] S a m p le W a n d e r G e n e r a t io n (T D E V ) f o r S T M /M S T M - S 3 1 .0 E - 6 T y p i c a l r e s p o n s e - 3 0 0 0 s e c o n d te s t - J itt e r a p p l ie d ( 2 U I @ re f d a te A P R 10 H z) 2 2 1 99 8 k dh 1 0 0 .0 E - 9 1 0 .0 E - 9 TDE V (s e c DS-1 Line Card OC-48 Line Card OC-3 Line Card . . . . ... OC-12 Line Card M T IE , T D E V , W a n d e r T r a n s f e r , a n d W a n d e r G e n e r a t io n P l o t s Line Card Noise Modulation Input 10 MHz E x te r n a l R e fe re n c e In p u t S ta n d a r d s C o m p lia n c e D o c u m e n ts D S 1 r a te R Z ( 1 .5 4 4 M H z ) , E 1 r a te R Z o r 8 k H z c lo c k R Z w ith n o is e m o d u la tio n Timing Card A r b it r a r y W a v e fo r m G e n e ra to r Timing Card E x te r n a l R e fe re n c e In p u t T D EV G R 1 2 4 4 - F ig 5 . 1 1 .0 E - 9 G R 1 2 4 4 - F ig 5 - 3 1 0 0 .0 E - 1 2 1 0 .0 E - 3 1 0 0 .0 E - 3 1 .0 E + 0 In te g r a t io n (s e c ) 1 0 0 .0 E + 0 1 .0 E + 3 C o p y r i g h t 1 9 9 8 C o n n o r - W i n f ie l d a ll l rig h t s r e s e r v e d T im e - s ta m p e d e n s e m b le b a s e d o n a b s o lu te tim e r e fe r e n c e ( 1 0 M H z in p u t) 10 MHz D S 1 r a te [1 .5 4 4 M H z ] B IT S B ip o la r 1 0 .0 E + 0 T im e P h a s e E r r o r d a ta o u t p u t D S - 1 , O C - 3 , O C - 1 2 e le c tr ic a l o r o p tic a l s ig n a ls 10 MHz T e k tr o n ix S J300E E x te r n a l R e fe re n c e In p u t HP 53310A M o d u la tio n A n a ly z e r / T im e I n te r v a l A n a ly z e r W a n d e r A n a ly z e r d a ta ( IE E E - 4 8 8 ) E x te r n a l R e fe re n c e In p u t IE E E - 4 8 8 C o n tr o lle r P la t f o r m f o r s o f tw a r e H P 5 3 3 0 5 A P h a s e A n a ly z e r H P E 1748A S ync M e a s u re m e n t T e k t r o n ix W a n d e r A n a ly z e r T E K T R O N IX S J 3 0 0 E Data Sheet #: TM027 © Copyright 2001 The Connor-Winfield Corp. Page 5 of 16 Rev: P05 Date: 12 / 02 / 02 All Rights Reserved Specifications subject to change without notice MSTM-S3-TR Typical Current Draw Figure 4 TYPICAL CURRENT DRAW STS/MSTS-S3-T2 0.45 CURRENT (A) 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 0 10 20 30 40 50 60 TIME (Sec) Typical Calibrated Wander Transfer TDEV Figure 5 10000 100 TDEV (ns) GR1244, Fig 5.3 10 10000 1000 100 10 1 0.1 1 0.01 TDEV (ns) 1000 Integration Time (Sec.) Data Sheet #: TM027 Page 6 of 16 Rev: P05 Date: 12 / 02 / 02 © Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice Typical Wander Generation MTIE Figure 6 1000 G R 1 2 4 4 , F ig 5 .2 (A ) G R 1 2 4 4 , F ig 5 .2 (B ) G R 2 5 3 -5 .4 .4 .3 .2 , F ig 5 .1 7 MTIE (ns) M T IE (n s ) 100 1000000 100000 10000 1000 100 10 1 0.1 10 O b s e r v a tio n T im e (s e c .) Typical Wander Generation TDEV Figure 7 100 T D E V (n s) G R 1244, F ig 5.1 TDEV (ns) 10 1 10000 1000 100 10 1 0.1 0 .1 In te g ra tio n T im e (s e c .) Data Sheet #: TM027 © Copyright 2001 The Connor-Winfield Corp. Page 7 of 16 Rev: P05 Date: 12 / 02 / 02 All Rights Reserved Specifications subject to change without notice 1µ µs Phase Transient TIE Figure 8 1200 1000 TIE (ns) 800 600 400 200 0 -200 0 1 2 3 4 5 6 7 8 9 10 Time (sec) Typical Phase Transient MTIE Figure 9 10000 MTIE (ns) 1000 G R -2 5 3 , F i g . 5 -1 9 , R e q u i r e m e n t M T I E (n s) 100 10 1 0 .0 1 0 .1 1 10 100 1000 O b s e rv a tio n T im e (s e c ) Data Sheet #: TM027 Page 8 of 16 Rev: P05 Date: 12 / 02 / 02 © Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice Entry Into Hold Over Figure 10 10000 MTIE (ns) 1000 100 G R -1 2 4 4 O b je c tive , F ig . 5 -8 G R -1 2 4 4 R e q ui re m e nt, F ig . 5 -8 G R -2 5 3 , F ig . 5 -1 9 , R e q uire m e nt T yp ic a l M T IE 10 1 0 .0 0 1 0 .0 1 0 .1 1 10 100 1000 O b s e rv a tio n T im e (s e c o n d s ) Return from Hold Over Figure 11 10000 MTIE (ns) 1000 100 G R -1 2 4 4 R e q u ire m e n t , F ig . 5 -7 G R -2 5 3 , F ig . 5 -1 9 , R e q u ire m e n t Ty p ic a l M TIE 10 1 0.001 0.01 0.1 1 10 100 1000 O b se r v a ti o n T i m e (se c . ) Data Sheet #: TM027 © Copyright 2001 The Connor-Winfield Corp. Page 9 of 16 Rev: P05 Date: 12 / 02 / 02 All Rights Reserved Specifications subject to change without notice MSTM-S3-TR Mode Indicator Delay Figure 12 Change in Operational Mode Operational Mode Indicator ∆tm 10 usec