SCG2000 Series
Synchronous Clock
Generators
PLL
2111 Comprehensive Drive
Aurora, Illinois 60505
Phone: 630- 851- 4722
Fax: 630- 851- 5040
www.conwin.com
Bulletin
Page
Revision
Date
Issued By
SG029
1 of 20
A04
29 JAN 02
MBATTS
Application
Features
The Connor-Winfield SCG2000 Series
provides high precision phase lock loop
frequency translation for the
telecommunication applications.
SCG2000 Series is well suited for use in
line cards, service termination cards and
similar functions to provide reliable
reference, phase locked, synchronization
and low phase gain for TDM, PDH, SONET
and SDH network equipment. The
SCG2000 Series provides a jitter filtered,
wander following output signal
synchronized to a superior Stratum or peer
input reference signal.
• 3.3V High
Precision PLL
Data Sheet #: SG029
Page 1 of 20
• Tri-State Capability
• Active Alarms
• Guaranteed Free
Run ±20ppm
• 1 Sec. Acquisition
Time
Rev: A04
Date: 01 / 29 / 02
© Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
General Description
Loss-of-Lock, (LOL). During the LOR alarm, the SCG2000
will also enter a Free Run state which will guarantee a 20
ppm accurate output. Additionally the Free Run mode may
be entered manually by asserting a high signal to the Free
Run Enable pin. The outputs may be put into the tri-state
high impedance condition for external testing purposes by
asserting a high signal to the Tri-State Enable pin.
The SCG2000 Series are 3.3 Volt components that
typically draw less than 100 mA. All models have an
acquisition time of approximately 1.0 second and can be
used in applications that require temperature rating of 0° 70° C. All models have a 33W resistor in series with the
oscillator output. The SCG2000 package dimensions are
.775” x .825” x .35” on a six layer FR4 board with surface
mount pins. Parts are assembled using high temperature
solder to withstand surface mount reflow process.
The SCG2000 Series provides high precision phase lock loop
frequency translation for the telecommunication applications. The
SCG2000 products generate a CMOS output from an intrinsically
low jitter, voltage controlled crystal oscillator. Most models
provide a jitter attenuated, internal reference that is connected to
a Reference Output pin.
SCG2000 Series is well suited for use in line cards, service
termination cards and similar functions to provide reliable
reference, phase locked, synchronization for TDM, PDH, SONET
and SDH network equipment . The SCG2000 Series provides a
low phase gain (<0.2dB), jitter filtered, wander following output
signal synchronized to a superior Stratum or peer input reference
signal.
The SCG2000 Series include the following features: Free
Run, Tri-state and alarm outputs for Loss-of-Reference, (LOR),
Functional Block Diagram
Figure 1
Tri-State Enable
(Pin 10)
LOL Alarm Output
(Pin 7)
ALARM
DETECTION
LOR Alarm Output
(Pin 6)
Free Run Enable
(Pin 5)
Reference Input
(Pin 8)
DIVIDER
DPFD
ANALOG
FILTER
FREE RUN
CONTROL
Oscillator Output
(Pin 9)
VCXO
Optional Oscillator Output
(Pin 1)
DIVIDER
Reference Output
(Pin 1)
(Not available on
models with optional
oscillator output)
Input Freq. Select A
(Pin 14)
Input Freq. Select B
(Pin 13)
Model Comparison Table
Table 1
Input
Ref Freq
Max
Duty
Cycle
Reference Output
(Pin #1)
Oscillator Output
(Pin #9)
Notes
SCG2000
8-64 kHz
40/60
= Input Ref Freq.
1.544 MHz to 125.0 MHz
Basic Model
SCG2010
19.44 MHz
40/60
8 kHz
19.44 MHz
SCG2020
19.44 MHz
40/60
19.44 MHz
77.76 MHz
SCG2030
8-64 kHz
45/55
= Input Ref Freq.
1.544 MHz to 125.0 MHz
SCG2050
8-64 kHz
40/60
19.44 MHz
77.76 MHz
SCG2070
19.44 MHz
40/60
51.84 MHz, 77.76 MHz
51.84 MHz, 77.76 MHz
Model
Tight Duty Cycle
Ref Output = Osc Output
*Features which differentiate a model from the base model (SCG2000) are highlighted in boldface color and in the notes column.
Data Sheet #: SG029
Page 2 of 20
Rev: A04
Date: 01 / 29 / 02
© Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
Pin Description
Table 2
Pin #
All SCG2000 Models
Connection
Description
1
Reference Output
Output frequency is dependent on SCG model
2
TCK
JTAG pin that is used only by Connor-Winfield for programming. Do not connect
3
TMS
JTAG pin that is used only by Connor-Winfield for programming. Do not connect
4
Ground
Ground
5
Free Run Enable/TDI
GND
Free Run enable pin. 1 = Free Run at nominal frequency ±20ppm. Input is pulled to
6
Loss of Reference (LOR)
Alarm indicator. 1 = The reference has been lost.
7
Loss of Lock (LOL)
Alarm indicator. 1 = Phase lock has been lost
8
Reference Input
Input reference frequency
9
Oscillator Output
Output frequency is dependent on SCG model
10
Tri-State enable
Tri State control for all outputs. 1 = Hi-Z, 0 = normal. Input is pulled to GND.
11
Vcc
3.3V Supply Voltage.
12
TDO
JTAG pin that is used only by Connor-Winfield for programming. Do not connect
13
Input Freq. Select B
Control pin B used to select input frequency. Input is pulled to GND.
14
Input Freq. Select A
Control pin A used to select input frequency. Input is pulled to GND.
Typical Application
Figure 2
BITS
System
Signal
Input Select
Line Card 1
A
A
B
S
MUX
Y
MUX
B
CW’s STM/MSTM module
Y
CW’s SCG
2000/4000
S
Clock out
RCV
Line Card N
Timing Card #N
S
A
A
B
MUX
Y
MUX
CW’s STM/MSTM module
B
Y
CW’s SCG
2000/4000
Clock out
RCV
S
System Select
Data Sheet #: SG029
Page 3 of 20
Rev: A04
Date: 01 / 29 / 02
© Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
Absolute Maximum Rating
Table 3
All SCG2000 Models
Symbol
Parameter
Minimum
Nominal
Maximum
Units
Vcc
Power Supply Voltage
-0.5
4
Volts
V1
Input Voltage
-0.5
5.5
Volts
Ts
Storage Temperature
-65
150
deg. C
Notes
Specifications
Table 4
All SCG2000 Models
Parameter
Specifications
Notes
Voltage
3.3V ±5%
1.0
Current
100 mA
Temperature Range
0 to 70°C
Input Jitter Tolerance
6.25 us, 10 Hz (.05 UI @ 8000 Hz)
Jitter Bandwidth
<10 Hz
Acquisition Time
Approx 1.0 second
Capture/Pull-in Range
±25 ppm Minimum
Output Duty Cycle
40/60 % Min/Max @ 50% Level
Output Rise and Fall Time
3 ns @ 20% to 80% output level
Output Load
30 pF
Alarms
LOR, LOL Status on seperate outputs
Free Run Accuracy
±20 ppm
Package
Fr4 SM 0.775" x .825" x 0.350"
TDEV
<0.4 ns Typical
MTIE
2 ns Typical
2.0
Input And Output Characteristics
Table 5
All SCG2000 Models
Symbol
Parameter
Minimum
VIH
High Level Input Voltage
VIL
Low Level Input Voltage
TIO
CO
VHO
High Level Output Voltage loH = -4mA
VIO
Low Level Output Voltage loL = 8mA
TIR
Input Reference Signal Pulse Width
NOTES:
`
Nominal
Maximum
Units
2
5.5
V
0
0.8
V
I/O to Output Valid
10
nS
Output Capacitance
10
pF
2.4
Vcc Min.
0.4
30
Notes
Vcc Max.
nS
1.0: Requires external regulation
2.0: From a 20 ppm offset in reference frequency
Data Sheet #: SG029
Page 4 of 20
Rev: A04
Date: 01 / 29 / 02
© Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
Output Jitter Specifications
Table 6
All SCG2000 Models
Jitter BW 10 Hz - 1 MHz
Sonnet Jitter BW 12 KHz - 20 MHz
Frequency (MHz)
pS (RMS)
m UI
pS (RMS)
m UI
1.544
TBD
TBD
TBD
TBD
2.048
60
0.122
4
0.008
16.384
35
0.573
2.25
0.037
19.44
50
0.972
2.4
0.047
20.48
TBD
TBD
TBD
TBD
37.056
30
1.11
1.25
0.046
44.736
30
1.34
1.15
0.051
49.152
30
1.47
1.25
0.061
51.84
TBD
TBD
TBD
TBD
77.76
30
2.33
2.25
0.175
125.0
30
3.75
1.5
0.186
Output Programming
Table 7
Alarm Status
All SCG2000 Models
Tristate
Free Run
0
1
0
Table 8
All SCG2000 Models
Output
LOL Output LOR Output
Alarm Output
0
Locked to reference selected (default)
0
0
No alarm
X
Hi-Z Tristate condition
1
0
Loss-of-Lock
1
Free run at nominal frequency
X
1
Loss-of-Reference
Package Dimensions
Recommended Footprint Dimensions
Figure 3
Figure 4
0.800
0.640
(20.32mm)
(16.26mm)
0.050 TYP
(1.27mm)
0.080 (2.03mm)
0.100 TYP
(2.54mm)
Pin 1
3LQ&RSODQDULW\LV
*Pin Coplanarity is ±0.004”
0.050 TYP
(1.27mm)
Data Sheet #: SG029
Page 5 of 20
0.650
(16.51mm)
Rev: A04
Date: 01 / 29 / 02
© Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
Tape and Reel Dimensions
Figure 5
Data Sheet #: SG029
Page 6 of 20
Rev: A04
Date: 01 / 29 / 02
© Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
SCG2000 Typical TDEV
Figure 6
SCG2000 Typical MTIE
Figure 7
Data Sheet #: SG029
Page 7 of 20
Rev: A04
Date: 01 / 29 / 02
© Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
SCG2000 Switch from Free Run to a new Reference
Figure 8
SCG2000 Switch from a Reference to Free Run
Figure 9
Data Sheet #: SG029
Page 8 of 20
Rev: A04
Date: 01 / 29 / 02
© Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
SCG2000 Step Response due to a Freq. Step
Figure 10
SCG2000 1µs Phase Transient
Figure 11
Data Sheet #: SG029
Page 9 of 20
Rev: A04
Date: 01 / 29 / 02
© Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
SCG2000 Jitter Attenuation
Figure 12
Jitter attenuation (dB)
Jitter Attenuation vs. Input Frequency
0.0
-5.0
-10.0
-15.0
-20.0
-25.0
-30.0
-35.0
-40.0
-45.0
1
10
100
INPUT Jitter frequency (Hz)
1000
Typical System Test Setup
Figure 13
GPS or LORAN
Timing Source
This device supplies system time
information. It can be thought of as
supplying "absolute time" reference
information
Possible Choice :
Stanford Research Model: FS700
S a m p l e M T IE D ata fo r S T M -S 3 /M S T M -S 3
1. 0E -6
T yp ic al r es po n s e - 3 00 0 s ec on d te s t - J i tte r app lie d (2 U I @ 10 H z )
r e f d ate A P R 22 19 98
k dh
1 00. 0E -9
M T IE ( s
10
MHz
M TIE
10. 0E -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. 0E -9
1 0 0 .0 E - 3
1 . 0 E +0
1 0 .0 E +0
1 0 0 .0 E +0
Ob s e rv at io n Ti m e ( s )
1 . 0 E +3
1 0 . 0 E +3
C o p yr ig h t 1 99 8 Co n no r -W inf iel d all r i gh ts r e s er ve d
Target System Under Test
DS1 rate RZ (1.544 MHz), E1 rate RZ or 8 kHz
clock RZ with noise modulation
DS-1 Line Card
OC-48 Line Card
OC-3 Line Card
OC-12 Line Card
. . . . ...
MTIE, TDEV, Wander Transfer,
and Wander Generation Plots
S am p l e W an d e r G e n e r ati o n ( T D E V ) f or S T M / M S T M -S 3
1 .0 E - 6
T ypi cal r e s p on s e - 3 00 0 s ec o nd te s t - J i tter ap plie d (2 U I @ 10 H z )
r ef da te A P R 2 2 199 8
kdh
1 0 0 .0 E - 9
1 0 .0 E - 9
T D E V (s e c
Arbitrary
Waveform
Generator
[Noise
Source]
Line Card
Noise Modulation Input
10
MHz
External
Reference
Input
Standards
Compliance
Documents
Clock or BITS logic level
clock input (TTL, CMOS,
etc.)
Timing Card
Arbitrary
Waveform
Generator
Timing Card
External
Reference
Input
TD EV
GR 1 2 4 4 -Fi g 5 .1
1 .0 E - 9
GR 1 2 4 4 -Fi g 5 -3
1 0 0 . 0 E -1 2
1 0 .0 E - 3
1 0 0 .0 E - 3
1 . 0 E +0
1 0 .0 E +0
I n te g r a ti o n Ti m e (s e c )
DS1 rate [1.544 MHz] BITS Bipolar
1 0 0 .0 E +0
1 . 0 E +3
C o p yr ig ht 199 8 C o nn o r -Wi nfi eld a lll r ig hts r es e rv ed
Time-stamped ensemble
based on absolute time
reference (10MHz input)
10
MHz
Phase Error data output
DS-1, OC-3, OC-12 electrical or optical signals
10
MHz
Tektronix
SJ300E
External
Reference
Input
HP53310A
Modulation Analyzer / Time Interval Analyzer
Wander Analyzer data (IEEE-488)
External
Reference
Input
IEEE-488 Controller
Platform for software
HP 53305A Phase Analyzer
HP E1748A Sync
Measurement
Tektronix Wander Analyzer
TEKTRONIX SJ300E
Data Sheet #: SG029
Page 10 of 20
Rev: A04
Date: 01 / 29 / 02
© Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
Alarm Timing Diagram
Figure 14
LOR (loss-of-reference)
EXT REF
(Divided down to 8 kHz)
INT 8K REF
125 µ s
125µ s - 250µ s
LOR
LOL
31.25µ s - 156.25µ s
Point at which -X < t < X
and is held within that range
}
LOL (loss-of-lock)
t≤ -X
or
t≥ X
EXT REF
(Divided down to 8 kHz)
INT 8K REF
LOL (If t
>X)
X = 31.25 µ s for models 2000, 2030, 2050
X = 1 µ s for models 2010, 2020, 2070
= Pulsing alarm output for models 2010, 2020, 2070
Solder Profile
Figure 15
250
200
Temp
(Deg C)
150
100
50
0
1
2
3
4
5
6
7
8
Time (minutes)
Recommended Reflow Profile
Peak Temp:
217 Deg C
Max Rise Slope:
1.5 Deg
C/Sec
Time Above 150 C: 100 Sec
Data Sheet #: SG029
Page 11 of 20
Rev: A04
Date: 01 / 29 / 02
© Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
SCG2000
The SCG2000 is Connor-Winfield’s base model
for the SCG2000 Series product line. The
SCG2000 can lock to one of four input
reference frequencies from 8 to 64 kHz which is
selectable using two input control pins.
SCG2000 Individual Features:
• Four selectable References: 8, 16, 32, and 64 kHz.
• Oscillator Output Available: 1.544 MHz to 77.76 MHz.
Input Reference Selection
Table 9
SCG2000
Input Sel A
(Pin #14)
Input Sel B
(Pin #13)
Reference Frequency
(Pin #8)
0
0
8 kHz (default)
1
0
16 kHz
0
1
32 kHz (see note 4.0)
1
1
64 kHz (see note 4.0)
Reference and Output Availability
Table 10
SCG2000
Input Reference
(Pin #8)
Oscillator Output
(Pin #9)
Reference Output
(Pin #1)
8 kHz
16 kHz
19.44 MHz
8 kHz
16 kHz
8 kHz
16 kHz
32 kHz
64 kHz
1.544, 2.048, 16.384 20.48, 37.056,
44.736, 49.152, 51.84 and 77.76 MHz
8 kHz
16 kHz
32 kHz
64 kHz
125.0 MHz
8 kHz
8 kHz
Notes:
Note 4.0:
Not available with 19.44 MHz output.
Data Sheet #: SG029
Page 12 of 20
Rev: A04
Date: 01 / 29 / 02
© Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
SCG2010
The SCG2010 is designed as a clean-up PLL
with the input reference frequency (Pin #8)
equal to the oscillator output (Pin #9). The
reference output frequency (Pin #1) is 8 kHz.
The LOL alarm is designed to tolerate 1us pp of jitter on the reference. Jitter greater than
1us p-p will result in LOL alarm pulses.
SCG2010 Individual Features:
• Input References (Pin #8) at 19.44 MHz.
• Oscillator Output (Pin #9) at 19.44 MHz.
• Reference Output (Pin #1) at 8 kHz.
Input Reference Selection
Table 11
Input Sel A
(Pin #14)
X
SCG2010
Input Sel B
(Pin #13)
Reference Frequency
(Pin #8)
X
19.44 MHz (Default)
X= Don’t Care
Reference and Output Availability
Table 12
Input Reference
(Pin #8)
19.44 MHz
SCG2010
Oscillator Output
(Pin #9)
19.44 MHz
Reference Output
(Pin #1)
8 kHz
LOL Alarm Note
Units that use 19.44 MHz reference has a pulsing LOL
Alarm output during an alarm condition. The pulsing
output is at an 8 kHz rate and the pulse width can be
between 1ms and 124 ms wide.
LOR Alarm Note
Units that use 19.44 MHz reference will have a pulse that
appears on the LOR alarm output when the reference is
£ 9.1 MHz.
Data Sheet #: SG029
Page 13 of 20
Rev: A04
Date: 01 / 29 / 02
© Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
SCG2020
The SCG2020 accepts a 19.44 MHz Input
Reference (Pin #8) and provides a 19.44
MHz Output Reference (Pin #1) and a
77.76 MHz signal output on Output #2.
The LOL alarm is designed to tolerate 1ms
p-p of jitter on the reference. Jitter greater
than 1ms p-p will result in LOL alarm
pulses.
SCG2020 Individual Features:
• Input References (Pin #8) at 19.44 MHz.
• Oscillator Output (Pin #9) at 77.76 MHz.
• Reference Output (Pin #1) at 19.44 MHz.
Input Reference Selection
Table 13
Input Sel A
(Pin #14)
X
SCG2020
Input Sel B
(Pin #13)
Reference Frequency
(Pin #8)
X
19.44 MHz (Default)
X= Don’t Care
Reference and Output Availability
Table 14
Input Reference
(Pin #8)
19.44 MHz
SCG2020
Oscillator Output
(Pin #9)
Reference Output
(Pin #1)
77.76 MHz
19.44 MHz
LOL Alarm Note
Units that use 19.44 MHz reference has a pulsing LOL
Alarm output during an alarm condition. The pulsing
output is at an 8 kHz rate and the pulse width can be
between 1ms and 124ms wide.
LOR Alarm Note
Units that use 19.44 MHz reference will have a pulse that
appears on the LOR alarm output when the reference is
£ 9.1 MHz.
Data Sheet #: SG029
Page 14 of 20
Rev: A04
Date: 01 / 29 / 02
© Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
SCG2030
The SCG2030 is similar to the SCG2000
but with a tighter duty cycle of 45/55.
SCG2030 Individual Features:
• Four selectable References: 8, 16, 32, and 64 kHz.
• Oscillator Output Available: 1.544 MHz to 77.76
MHz.
• Tight Duty cycle
Input Reference Selection
Table 15
SCG2030
Input Sel A
(Pin #14)
Input Sel B
(Pin #13)
Reference Frequency
(Pin #8)
0
0
8 kHz (default)
1
0
16 kHz
0
1
32 kHz (see note 4.0)
1
1
64 kHz (see note 4.0)
Reference and Output Availability
Table 16
SCG2030
Input Reference
(Pin #8)
Oscillator Output
(Pin #9)
Reference Output
(Pin #1)
8 kHz
16 kHz
19.44 MHz
8 kHz
16 kHz
8 kHz
16 kHz
32 kHz
64 kHz
1.544, 2.048, 16.384, 20.48, 37.056,
44.736, 49.152, 51.84 and 77.76 MHz
8 kHz
16 kHz
32 kHz
64 kHz
125.0 MHz
8 kHz
8 kHz
Notes:
Note 4.0:
Not available with 19.44 MHz output.
Data Sheet #: SG029
Page 15 of 20
Rev: A04
Date: 01 / 29 / 02
© Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
SCG2050
The SCG2050 can use any 1 of 4
selectable Input References frequencies
with an Oscillator output of 77.76 MHz and
a Reference output of 19.44 MHz
SCG2050 Individual Features:
• Four selectable References: 8, 16, 32, and 64 kHz.
• Oscillator Output Available: 77.76 MHz only
Input Reference Selection
Table 19
Input Sel A
(Pin #14)
SCG2050
Input Sel B
(Pin #13)
Reference Frequency
(Pin #8)
0
0
8 kHz (default)
1
0
16 kHz
0
1
32 kHz
1
1
64 kHz
Reference and Output Availability
Table 20
Input Reference
(Pin #8)
SCG2050
Oscillator Output
(Pin #9)
Reference Output
(Pin #1)
8 kHz
77.76 MHz
19.44 MHz
16 kHz
77.76 MHz
19.44 MHz
32 kHz
77.76 MHz
19.44 MHz
64 kHz
77.76 MHz
19.44 MHz
Data Sheet #: SG029
Page 16 of 20
Rev: A04
Date: 01 / 29 / 02
© Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
SCG2070
SCG2070 Individual Features:
• Input References (Pin #8) at 19.44 MHz.
• Oscillator Output (Pin #9) equals Reference Output
(Pin #1)
The SCG2070 is designed to provide two
output frequencies that are equal. The
Reference Output is actually a second
Oscillator Output. SCG2070 is available
with either 77.76 MHz outputs or with
51.84 MHz outputs. The LOL alarm is
designed to tolerate 1ms p-p
of jitter on the reference. Jitter greater than
1ms p-p will result in LOL alarm pulses.
Input Reference Selection
Table 21
Input Sel A
(Pin #14)
X
SCG2070
Input Sel B
(Pin #13)
Reference Frequency
(Pin #8)
X
19.44 MHz (Default)
X= Don’t Care
Reference and Output Availability
Table 22
Input Reference
(Pin #8)
SCG2070
Oscillator Output
(Pin #9)
Reference Output
(Pin #1)
19.44 MHz
77.76 MHz
77.76 MHz
19.44 MHz
51.84 MHz
51.84 MHz
LOL Alarm Note
Units that use 19.44 MHz reference has a pulsing LOL
Alarm output during an alarm condition. The pulsing
output is at an 8 kHz rate and the pulse width can be
between 1ms and 124 ms wide.
LOR Alarm Note
Units that use 19.44 MHz reference will have a pulse that
appears on the LOR alarm output when the reference is
£ 9.1 MHz.
Data Sheet #: SG029
Page 17 of 20
Rev: A04
Date: 01 / 29 / 02
© Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
Ordering Information
SCG{XXXX}-{FFF.FFF}{M}
XXXX equals a specific model (2000, 2010, 2020, 2030, 2050, 2070)
FFF.FFF equals the Oscillator Output frequency (001.544, 002.048, 017.408, 019.44, 077.76, 125.0)
M equals MHZ and is added to all part numbers
Example: To order an SCG2000 with an Oscillator Output of 77.76 MHz,
Order part number SCG2000-077.76M
Data Sheet #: SG029
Page 18 of 20
Rev: A04
Date: 01 / 29 / 02
© Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
Revision
Revision DateNote
A00
4/27/01
Advance Informational Release
A01
5/22/01
Added new frequencies
A02
7/10/01
Changed LOL alarm information
A03
7/30/01
Filled in some jitter specs
A04
1/29/02
Added ordering information
Data Sheet #: SG029
Page 19 of 20
Rev: A04
Date: 01 / 29 / 02
© Copyright 2001 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
2111 Comprehensive Drive
Aurora, Illinois 60505
Phone: 630- 851- 4722
Fax: 630- 851- 5040
www.conwin.com