MSTM-S3-R [CONNOR-WINFIELD]
STRATUM 3 SIMPLIFIED CONTROL TIMING MODULES; 第3层简化的控制计时模块
| 型号： | MSTM-S3-R |
| 厂家： | 
CONNOR-WINFIELD CORPORATION |
| 描述： | STRATUM 3 SIMPLIFIED CONTROL TIMING MODULES |
| 文件： | 总7页 (文件大小：491K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NETWORK ELEMENT TIMING GENERATOR
C O N N O R THE CONNOR-WINFIELD CORP.
2111 COMPREHENSIVE DRIVE.
AURORA, IL 60505.
FAX (630) 851-5040.
PHONE (630) 851-4722
HTTP://WWW.CONWIN.COM
W I N F I E L D
STRATUM 3 SIMPLIFIED CONTROL
TIMING MODULES (MSTM-S3-R)
Fig. 1
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:
MSTM-S3-R PIN ASSIGNMENT
+5Vdc
18
17
16
15
14
13
12
11
10
1
2
3
4
5
6
7
8
9
HOLDOVER
REF 1
EX REF 1
GND
REF 2
EX FEF 2
FREERUN
GND
GND
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. In Free Run
mode, operation (A=0, B=0) is a guaranteed output of 4.6 ppm of
the nominal frequency.
ALARM OUT
CLK_OUT
GND
CNTL A
CNTL B
PLL TVL
SYNC_OUT
TRI-STATE
BOTTOM VIEW
Fig. 2
BLOCK DIAGRAM
0
1
2
3
FREE RUN
CNTL A
CNTL B
REF 1
PLL TVL
REF 2
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. Real-
time indication of the operational mode is available at unique
operating mode outputs on pins 1-4.
FREE RUN
2:4
HOLD OVER
HOLD OVER
ALARM OUT
LOCK AND
EX REF 1
EX REF 2
PHASE
DETECTION
2:1
MUX
COMPARATOR
2:1
MUX
SYNC_OUT
DAC
FILTERS
STRATUM3
TCXO
DAC
TUNING
VOLTAGE
MONITOR
STRATUM3
TCXO
FIFO
CLK_OUT
PLL_TVL
Control loop filters effectively attenuate any reference
jitter and smooth out phase transients.
MSTM-S3-R
TABLE 1.0
CONTROL
INDICATOR PIN
OUTPUTS
HOLD
OPERATIONA L MODE
INPUTS
ALARM
A
0
B
0
REF 1
REF2
0
FREE RUN PLL_TVL
TRI-STATE
0
OVER
0
OUTPUT
1
FREE RUN MODE (DEFA ULT)
0
1
0
EXTERNAL
REFERENCE
#1
NORMAL
PLL TUNING VOLTAGE LIMIT
LOR + LOL
1
1
1
0
0
0
0
0
0
0
0
0
0
1
0
0
1
1
0
0
1
0
0
1
MODE
EXTERNAL
REFERENCE
#2
NORMAL
PLL TUNING VOLTAGE LIMIT
LOR + LOL
0
0
0
1
1
1
0
0
0
0
0
0
0
1
0
0
1
1
MODE
0
1
1
1
HOLD OVER MODE
TRI-STATE MODE
0
0
1
0
0 or 1
1
X
X
HIGH IMPEDANCE
PRELIMINARY
DATA SHEET #: T__M__0_2_2______ PAGE__1____ OF ___7____ REV:_P__0_2____ DATE:__3_/2_1__/0_1_____
Specifications subject to change without notice.
NETWORK ELEMENT TIMING GENERATOR
C O N N O R THE CONNOR-WINFIELD CORP.
2111 COMPREHENSIVE DRIVE.
AURORA, IL 60505.
FAX (630) 851-5040.
PHONE (630) 851-4722
HTTP://WWW.CONWIN.COM
W I N F I E L D
STRATUM 3 SIMPLIFIED CONTROL
TIMING MODULES (MSTM-S3-R)
TABLES OF CONTENTS
TABLE 2.0
ABSOLUTE MAXIMUM RATING
SYMBOL
PARAMETER
MINIMUM
-0.5
NOMINAL
MAXIMUM
+7
UNITS
Volts
Volts
°C
NOTES
1.0
VCC
VIN
Pow er Supply Voltage (VCC to GND)
Input voltage w ith respect to ground
Storage temperature
-0.5
VCC + 0.5
+150°
1.0
TSTG
-65°
1.0
TABLE 3.0
INPUTAND OUTPUT CHARACTERISTICS
SYMBOL
VTH
PARAMETER
MINIMUM
NOMINAL
MAXIMUM
UNITS
NOTES
V
V
2.0
Res et thres hold voltage
4.25
4.75
4.5
VCC
5.0
Supply Voltage
5.25
High level input voltage (TTL
Com patible)
Low level input voltage (TTL
Com patible)
High level output voltage
@ IOH= -8.0 m A, VCC m inim um
Low level output voltage
@ IOH= 8.0 m A, VCC m axim um
VIH
VIL
2.0
0.0
2.4
VCC
0.8
V
V
V
VOH
VOL
0.4
V
tIN
Trans ition tim e of input s ignal
Input capacitance
250.0
15.0
nS
pF
pF
CIN
COUT
Output capacitance
50.0
4.0
Trans ition tim e of clock output from
high to low with no load
Trans ition tim e of clock output from
low to high with no load
8 kHz input reference s ignal’s
positive puls e width
8 kHz input reference s ignal’s
negative puls e width
tHL
tLH
tRIP
tRIN
nS
nS
nS
nS
4.0
25.0
25.0
TABLE 4.0
SPECIFICATIONS
PARAMETER
NOTES
Frequency Range
Supply Current
19.44 MHz
120 mA
8 kHz
Timing Reference Inputs
Jitter and Phase Tolerance
Wander Generation
3.0
Ref-GR-1244-CORE4.2 - 4.4
Ref-GR-1244-CORE5.3
Free Run Accuracy
Hold Over Stabilty
±4.6 ppm
±0.37
0.05
4.0
Initial Offset
Temperature
Drif t
0.28
0.04
Hold Over History
Pull-in / Hold-in Range
Lock Time
30 sec.
±4.6 ppm Minimum
5.0
6.0
< 100 sec.
125 uS
Correction Period
TVL Alarm
1 = WARNING : Refernce is nearing operational limit
PRELIMINARY
Specifications subject to change without notice.
DATA SHEET #: T__M__0_2_2______ PAGE__2____ OF ___7____ REV:_P__0_2____ DATE:__3_/2_1__/0_1_____
NETWORK ELEMENT TIMING GENERATOR
C O N N O R THE CONNOR-WINFIELD CORP.
2111 COMPREHENSIVE DRIVE.
AURORA, IL 60505.
FAX (630) 851-5040.
PHONE (630) 851-4722
HTTP://WWW.CONWIN.COM
W I N F I E L D
STRATUM 3 SIMPLIFIED CONTROL
TIMING MODULES (MSTM-S3-R)
PIN DESCRIPTION
MSTM-S3
PIN #
1
HOLD OVER
REF 1
-Output. High when the control inputs select Holdover.
2
-Output. High when the control inputs select EX REF 1.
3
REF 2
-Output. High when the control inputs select EX REF 2.
4
FREE RUN
Gnd
-Output. High when the control input selects Free Run.
5
-Ground.
6
ALARM_OUT
CNTL A
CNTL B
PLL_TVL
TRI-STATE
SYNC_OUT
Gnd
-Ouput. =1,If (FREE RUN + HOLD OVER + LOR + LOL + PLL_TVL) .
7
-Mode control input.
8
-Mode control input.
9
-Tuning Voltage Alarm. =1 If CAPTURE RANGE NEAR 10% OF EXTREME (~11ppm).
10
11
12
13
14
15
16
17
18
-Tri-state enable = 1. All outputs ae put into a high impedance state.
-Syncronized output.
-Ground.
CLK_OUT
Gnd
-Stratum 3 TCXO output. (Non-synchronized).
-Ground.
EX REF 2
Gnd
-External Reference #2 Input. (8 KHz)
-Ground.
EX REF 1
+5 Vdc
-Input. External Reference #1 Input. (8 KHz)
+5 Volt DC supply.
NOTES FOR TABLES 1.0 - 4.0
NOTES:
1.0
Operation of the device at these or any other conditions beyond those listed under Recommended Operating Conditions is not implied. Exposure to
Absolute Maximum Ratings conditions for extended periods of time may affect device reliability.
2.0
3.0
4.0
Power-on Reset will activate within the stated range
Ref- GR1244-CORE 3.2.1 R3-1.
Holdover stability is the cumulative fractional frequency offset containing Initial Offset, Temperature, and Drift components as described by
Bellcore GR-1244-CORE 5.2.
5.0
6.0
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.
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.
PRELIMINARY
Specifications subject to change without notice.
DATA SHEET #: T__M__0_2_2______ PAGE__3____ OF ___7____ REV:_P__0_2____ DATE:__3_/2_1__/0_1_____
NETWORK ELEMENT TIMING GENERATOR
C O N N O R THE CONNOR-WINFIELD CORP.
2111 COMPREHENSIVE DRIVE.
AURORA, IL 60505.
FAX (630) 851-5040.
PHONE (630) 851-4722
HTTP://WWW.CONWIN.COM
W I N F I E L D
STRATUM 3 SIMPLIFIED CONTROL
TIMING MODULES (MSTM-S3-R)
Fig. 3
1 s Transient Response
µ
1200
1000
800
600
400
200
0
-200
0
1
2
3
4
5
6
7
8
9
10
Time (sec)
Fig. 4
Phase Transient MTIE for MSTM-S3-R
10000
1000
100
10
GR-253, Fig. 5-19
MTIE (ns)
1
0.01
0.1
1
10
100
1000
Observation Time (sec)
PRELIMINARY
DATA SHEET #: T__M__0_2_2______ PAGE__4____ OF ___7____ REV:_P__0_2____ DATE:__3_/2_1__/0_1_____
Specifications subject to change without notice.
NETWORK ELEMENT TIMING GENERATOR
C O N N O R THE CONNOR-WINFIELD CORP.
2111 COMPREHENSIVE DRIVE.
AURORA, IL 60505.
FAX (630) 851-5040.
PHONE (630) 851-4722
HTTP://WWW.CONWIN.COM
W I N F I E L D
STRATUM 3 SIMPLIFIED CONTROL
TIMING MODULES (MSTM-S3-R)
Fig. 5
Sam ple W ander Generation (TDEV) for MSTM-S3-R
100
10
1
TDEV (ns)
GR1244, Fig 5.1
0.1
Integration Tim e (sec.)
Fig. 6
Sam ple Calibrated W ander Transfer (TDEV)
for MSTM-S3-R
10000
1000
100
10
TDEV (ns)
GR1244, Fig 5.3
1
Integration Time (Sec.)
PRELIMINARY
Specifications subject to change without notice.
DATA SHEET #: T__M__0_2_2______ PAGE__5____ OF ___7____ REV:_P__0_2____ DATE:__3_/2_1__/0_1_____
NETWORK ELEMENT TIMING GENERATOR
C O N N O R THE CONNOR-WINFIELD CORP.
2111 COMPREHENSIVE DRIVE.
AURORA, IL 60505.
FAX (630) 851-5040.
PHONE (630) 851-4722
HTTP://WWW.CONWIN.COM
W I N F I E L D
STRATUM 3 SIMPLIFIED CONTROL
TIMING MODULES (MSTM-S3-R)
Fig. 6
Sam ple W ander Generation (MTIE) for MSTM-S3-R
1000
100
10
G R1244, Fig 5.2 (A)
G R1244, Fig 5.2 (B)
G R253-5.4.4.3.2, Fig 5.17
M TIE (ns)
Observation Tim e (sec.)
Fig. 7
Power on reset for MSTM-S3-R
V
CC
V
TH
Range
Reset
Reset
Normal Operation
PRELIMINARY
Specifications subject to change without notice.
DATA SHEET #: T__M__0_2_2______ PAGE__6____ OF ___7____ REV:_P__0_2____ DATE:__3_/2_1__/0_1_____
NETWORK ELEMENT TIMING GENERATOR
C O N N O R THE CONNOR-WINFIELD CORP.
2111 COMPREHENSIVE DRIVE.
AURORA, IL 60505.
FAX (630) 851-5040.
PHONE (630) 851-4722
HTTP://WWW.CONWIN.COM
W I N F I E L D
STRATUM 3 SIMPLIFIED CONTROL
TIMING MODULES (MSTM-S3-R)
Fig. 8
Fig. 9
APPLICATIONS CIRCUIT DIAGRAM
BLOCK DIAGRAM
MSTM-S3
PACKAGE
WITH COVER
5 VOLT DC
POWER
SUPPLY
.030
(.762mm)
(1.98mm)
.078
.180
(4.572mm)
.150
(3.81mm)
SYSTEM
+5Vdc
EX REF 1
GND
HOLD OVER
REF 1
(1.02mm)
CONTROL
AND DATA
INPUTS
.040
NETWORK
TIMING
REFERENCE
INPUT
DETAIL "A-A"
"A-A"
REF 2
2.000
(50.08mm)
EX REF 2
eg. BITS CLOCK,etc.
FREE RUN
GND
.200 TYP (4)
(5.08mm) TYP
GND
1.600
(40.64mm)
.200 TYP
.555
(14.1mm)
FREE RUN CLOCK
COPY
CLK_OUT
GND
ALARM OUT
(5.08mm) TYP
CNTL A
CNTL B
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
SYNC_OUT
TRI-STATE
SYSTEM
CLOCK
PLL TVL
LOSS OF
REFERENCE
MONITOR
SECTION
PIN 1
2.000
(50.08mm)
.200 TYP
12
11
10
(16)
(5.08mm) TYP
BOTTOM VIEW
REVISION
REVISION DATE NOTE
P00
3/6/01
3/9/01
3/21/01
Preliminary Release
Added Reset graph
Added min/max Vcc
P01
P02
PRELIMINARY
Specifications subject to change without notice.
DATA SHEET #: T__M__0_2_2______ PAGE__7____ OF ___7____ REV:_P__0_2____ DATE:__3_/2_1__/0_1_____
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