SCG2000IG-037.056M [CONNOR-WINFIELD]
Support Circuit, 1-Func, ROHS COMPLIANT,MODULE, 14 PIN;
| 型号： | SCG2000IG-037.056M |
| 厂家： | 
CONNOR-WINFIELD CORPORATION |
| 描述： | Support Circuit, 1-Func, ROHS COMPLIANT,MODULE, 14 PIN |
| 文件： | 总16页 (文件大小：688K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SCG2000iG
Synchronous Clock
Generators
PLL
2111 Comprehensive Drive
Aurora, Illinois 60505
Phone: 630-851-4722
Fax: 630- 851- 5040
www.conwin.com
Application
Features
The Connor-Winfield SCG2000iG provides
high precision phase lock loop frequency
translation for telecommunication applications
that require a temperature range of -40°C to
85°C.
SCG2000iG 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 SCG2000iG provides a jitter
filtered, wander following, output signal
synchronized to a superior Stratum or peer
input reference signal. This product is also
compliant with all required ROHS
• Industrial Temperature
Range
• 3.3V High Precision
PLL
• Tri-State Capability
• Active Alarms
• Guaranteed Free Run
(20ppm for 19.44MHz
output, 25ppm for
65.536MHz and 30ppm
for 125.0 MHz)
• 1 Sec. AcquisitionTime
• ROHS Compliant
Bulletin
SG130
Page
1 of 16
specifications.
Revision
P00
Date
12 JULY 06
Issued By
MBATTS
General Description
output with the 19.44 MHz model, 25ppm accurate with the
65.536 MHz and 30 ppm accurate output with the 125.0
MHz model. Additionally the Free Run mode may be
entered manually by asserting a high signal to the Free Run
Enable pin. The outputs, except the oscillator output, 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 SCG2000iG operates at 3.3 Volts and typically
draws 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 -40° to
85° C. All models have a 33Ω resistor in series with the
oscillator output. The SCG2000iG maximum package
dimensions are .78” x .83” 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 SCG2000iG provides high precision phase lock loop
frequency translation for telecommunication applications. The
SCG2000iG generates a CMOS output from an intrinsically low
jitter, voltage controlled crystal oscillator. while providing a jitter
attenuated, internal reference that is connected to a Reference
Output pin.
SCG2000iG 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 SCG2000iG provides a low
phase gain (<0.2dB), jitter filtered, wander following output signal
synchronized to a superior Stratum or peer input reference
signal.
The SCG2000iG include the following features: Free Run, Tri-
state and alarm outputs for Loss-of-Reference, (LOR), Loss-of-
Lock, (LOL). During the LOR alarm, the SCG2000iG will also
enter a Free Run state which will guarantee a 20 ppm accurate
Functional Block Diagram
Figure 1
Tri-State Enable
(Pin 10)
10 kΩ
LOL Alarm Output
(Pin 7)
ALARM
LOR Alarm Output
(Pin 6)
DETECTION
Free Run Enable
(Pin 5)
2.2 kΩ
Reference Input
(Pin 8)
ANALOG
FILTER
FREE RUN
CONTROL
Oscillator Output
(Pin 9)
DIVIDER
DPFD
VCXO
33 Ω
27 Ω
DIVIDER
Input Freq. Select A
(Pin 14)
Reference Output
(Pin 1)
10 kΩ
10 kΩ
33 Ω
Input Freq. Select B
(Pin 13)
Model Comparison Table
Table 1
Model
Max
Duty
Cycle
40/60
45/55
Input
Ref Freq
Reference Output
(Pin #1)
Oscillator Output
(Pin #9)
Notes
SCG2000G 8-64 kHz
SCG2000iG 8-64 kHz
= Input Ref Freq.
= Input Ref Freq.
1.544 MHz to 125.0 MHz
Basic Model
19.44 MHZ, 65.536 MHz,
125.0 MHz
Industrial Temp. Range
SCG2010G 19.44 MHz
SCG2020G 19.44 MHz
SCG2030G 8-64 kHz
SCG2050G 8-64 kHz
SCG2070G 19.44 MHz
40/60
40/60
45/55
40/60
40/60
8 kHz
19.44 MHz
19.44 MHz
77.76 MHz
= Input Ref Freq.
19.44 MHz
1.544 MHz to 125.0 MHz
77.76 MHz
Tight Duty Cycle
51.84 MHz, 77.76 MHz
51.84 MHz, 77.76 MHz
Ref Output = Osc Output
*Features which differentiate a model from the base model (SCG2000G) are highlighted in boldface color and in the notes column.
Preliminary Data Sheet #: SG130
Page 2 of 16
Rev: P00 Date: 7/12/06
© Copyright 2006 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
Pin Description
Table 2
Pin #
Connection
Description
1
2
Reference Output
TCK
Output frequency is dependent on SCG model
JTAG pin that is used only by Connor-Winfield for programming. Do not connect
JTAG pin that is used only by Connor-Winfield for programming. Do not connect
Ground
3
TMS
4
Ground
5
Free Run Enable/TDI
Loss of Reference (LOR)
Loss of Lock (LOL)
Reference Input
Oscillator Output
Tri-State enable
Free Run enable pin. 1 = Free Run. Input is pulled to GND
Alarm indicator. 1 = The reference has been lost.
Alarm indicator. 1 = Phase lock has been lost
Input reference frequency
6
7
8
9
Output frequency is dependent on SCG model
10
Tri State control for all outputs except Oscillator Output. 1 = Hi-Z, 0 = normal.
Input is pulled to GND.
11
12
13
14
Vcc
3.3V Supply Voltage.
TDO
JTAG pin that is used only by Connor-Winfield for programming. Do not connect
Control pin B used to select input frequency. Input is pulled to GND.
Control pin A used to select input frequency. Input is pulled to GND.
Input Freq. Select B
Input Freq. Select A
Pin Out Diagram
Figure 2
Pin 1
Reference Output
Input Freq. Select a
Input Freq. Select B
TDO
Pin 14
TCK
TMS
GND
VCC
Top View
Free Run Enable/TDI
Loss of Reference (LOR)
Loss of Lock (LOL)
Tri-State Enable
Oscillator Output
Reference Input
Pin 7
Pin 8
Preliminary Data Sheet #: SG130
Page 3 of 16
Rev: P00 Date: 7/12/06
© Copyright 2006 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
Absolute Maximum Rating
Table 3
Symbol
Vcc
Parameter
Minimum
-0.5
Nominal
Maximum
Units
Volts
Notes
Power Supply Voltage
Input Voltage
4
V1
-0.5
5.5
150
Volts
Ts
Storage Temperature
-65
deg. C
Specifications
Table 4
Parameter
Voltage
Specifications
3.3V ±5%
Notes
1.0
Current
<100 mA Typical
-40° to 85°C
Temperature Range
Input Jitter Tolerance
≥31.25us Typical
(Input Jitter Frequencies > 10 Hz)
Jitter Bandwidth
<15 Hz (8 Hz Typical)
Typical Acquisition Time Data (SCG2000iG-019.44M & SCG2000iG-125.00M)
Acquisition from a cold power-up:
Phase lock within 1 UI:
Phase lock settled:
Alarm time:
~ 35 sec.
~ 160 sec.
< 1 sec.
Acquisition from Free Run:
Phase lock within 1 UI:
Phase lock settled:
Alarm time:
~ 35 sec.
~ 160 sec,
Typically no alarm
Frequency lock with a 20PPM reference frequency step: Typically <1 sec.
Typical Acquisition Time Data (SCG2000iG-65.536M)
Acquisition from a cold power-up:
Phase lock within 1 UI:
Phase lock settled:
Alarm time:
~ 4 sec.
~ 60 sec.
< 1 sec.
Acquisition from Free Run:
Phase lock within 1 UI:
Phase lock settled:
Alarm time:
~ 4 sec.
~ 60 sec.
Typically no alarm
Frequency lock with a 20PPM reference frequency step: Typically <0.5 sec.
Output Duty Cycle 45/55% Min/Max @ 50% Level
Capture/Pull-in Range (SCG2000iG-019.44M & SCG2000iG-125.00M)
±32 ppm Minimum
Capture/Pull-in Range (SCG2000iG-65.536M)
±50 ppm Minimum
Output Rise and Fall Time (SCG2000iG-019.44M & SCG2000iG-125.00M)
3 ns @ 20% to 80% output level
Output Rise and Fall Time (SCG2000iG-65.536M)
1ns Typ. (1.5ns Max.) @ 20% to 80% output level
Output Load (SCG2000iG-019.44M & SCG2000iG-125.00M)
30 pF
Output Load (SCG2000iG-65.536M)
7.5 pF Max.
Preliminary Data Sheet #: SG130
Page 4 of 16
Rev: P00 Date: 7/12/06
© Copyright 2006 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
Specifications (Continued)
Alarms
LOR, LOL Status on seperate outputs
Free Run Accuracy
±20 ppm (19.44 MHz output)
±25 ppm (65.536 MHz output)
±30 ppm (125.0 MHz output)
Package
TDEV
Fr4 SM 0.78" x .83" x 0.35" (maximum)
60 ps Typical @60s
MTIE
750 ps Typical @60s
Reference Output/Oscillator Output Offset ≤ 8 ns
Static Offset
± 35 ns Maximum
2.0
Dynamic Offset (25°C - 85°C)
(-40°C - 85°C)
± 18 ns Maximum
± 33 ns Maximum
NOTES: 1.0: Requires external regulation
2.0: Offset between Reference Input and Reference Output @ room temp.
Input And Output Characteristics
Table 5
Symbol
VIH
Parameter
Minimum
Nominal
Maximum
Units
V
Notes
High Level Input Voltage
Low Level Input Voltage
I/O to Output Valid
2
0
5.5
0.8
10
VIL
V
TIO
nS
pF
CO
Output Capacitance
10
VHO
VIO
High Level Output Voltage loH = -4mA
Low Level Output Voltage loL = 8mA
Input Reference Signal Pulse Width
2.4
30
Vcc Min.
Vcc Max.
0.4
TIR
nS
Output Jitter Specifications
Table 6
Jitter BW 10 Hz - 20 MHz
SONET Jitter BW 12 KHz - 20 MHz
Frequency (MHz)
19.44
pS (RMS)
m UI
pS (RMS)
m UI
10 Typ.
10 Typ.
10 Typ.
0.194 Typ.
0.655 Typ.
1.250 Typ.
1 Max., 0.5 Typ.
1 Max., 0.5 Typ.
1 Max., 0.5 Typ.
0.019 Max.
0.066 Max.
0.125 Max.
65.536
125.0
Output Programming
Alarm Status
Table 7
Table 8
Tristate Free Run Output
LOL Output LOR Output Alarm Output
0
1
0
0
X
1
Locked to reference selected (default)
Hi-Z Tristate condition
Free run
0
1
X
0
0
1
No alarm
Loss-of-Lock
Loss-of-Reference
Preliminary Data Sheet #: SG130
Page 5 of 16
Rev: P00 Date: 7/12/06
© Copyright 2006 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
Maximum Package Dimensions
Figure 3
Recommended Footprint Dimensions
Figure 4
0.800 (20.32mm)
0.640 (16.26mm)
0.080 (2.03mm)
0.050 TYP
(1.27mm)
0.100 TYP
(2.54mm)
0.050 TYP
(1.27mm)
0.650
(16.51mm)
Input Reference Selection
Table 9
Input Sel A
(Pin #14)
Input Sel B
(Pin #13)
Reference Frequency
(Pin #8)
0
1
0
1
0
0
1
1
8 kHz (default)
16 kHz
32 kHz
64 kHz
Reference and Output Availability
Table 10
Input Reference
(Pin #8)
Oscillator Output
(Pin #9)
Reference Output
(Pin #1)
8 kHz
16 kHz
8 kHz
16 kHz
19.44 MHz
8 kHz
16 kHz
32 kHz
64 kHz
8 kHz
16 kHz
32 kHz
64 kHz
65.536 MHz
125.0 MHz
8 kHz
8 kHz
Preliminary Data Sheet #: SG130
Page 6 of 16
Rev: P00 Date: 7/12/06
© Copyright 2006 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
Alarm Timing Diagram
Figure 5
Start-up
Region
LOR
Output
4
LOL
Output
2
1
1
Phase
Detector
3
External
Reference
Internal
Reference
2
2
2
2
2
2
2
2
2
2
2
2
2
2
LOR
Output
LOL
Output
5
1
1
1
1
1
Phase
Detector
3
3
External
Reference
Internal
Reference
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Reference Input Units
< 31.25 µsec
31.25 µsec
1
2
3
4
5
> 31.25 µsec
125 µsec wide range
Minimum pulse width = 62.5 µsec
During Start-up, The LOL Alarm will pulse
during the first second of operation
Start-up Region
Preliminary Data Sheet #: SG130
Page 7 of 16
Rev: P00 Date: 7/12/06
© Copyright 2006 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
Typical Application
Figure 6
BITS
System
Signal
Input Select
Line Card 1
Timing Card #1
S
A
B
CW's SCG
2000/4000
MUX
A
Clock out
RCV
Y
CW's STM/MSTM module
Y
MUX
B
S
Line Card #N
Timing Card #N
S
A
CW's SCG
2000/4000
Clock out
RCV
A
MUX
CW's STM/MSTM module
Y
Y
B
MUX
B
S
System Select
Typical System Test Setup
Figure 7
Preliminary Data Sheet #: SG130
Page 8 of 16
Rev: P00 Date: 7/12/06
© Copyright 2006 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
SCG2000iG Typical Jitter Attenuation
Figure 8
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
1000
INPUT Jitter frequency (Hz)
Preliminary Data Sheet #: SG130
Page 9 of 16
Rev: P00 Date: 7/12/06
© Copyright 2006 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
SCG2000iG Typical TDEV
Figure 9
100.0E-12
10.0E-12
1.0E-3
10.0E-3
100.0E-3
1.0E+0
10.0E+0
Integration Time ( )
(seconds)
SCG2000iG Typical MTIE
Figure 10
1.0E-9
100.0E-12
1.0E-3
10.0E-3
100.0E-3
1.0E+0
10.0E+0
100.0E+0
Observation Window (S)
(seconds)
Preliminary Data Sheet #: SG130
Page 10 of 16
Rev: P00 Date: 7/12/06
© Copyright 2006 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
SCG2000iG Typical Switch from Free Run to a new Reference
Figure 11
000.0E+0
-10.0E-6
-20.0E-6
-30.0E-6
-40.0E-6
-50.0E-6
-60.0E-6
0
1
2
3
4
5
6
7
8
Time (sec)
SCG2000iG Typical Switch from a Reference to Free Run
Figure 12
2.0E-6
1.0E-6
000.0E+0
-1.0E-6
-2.0E-6
-3.0E-6
-4.0E-6
-5.0E-6
-6.0E-6
-7.0E-6
-8.0E-6
0
1
2
3
4
5
6
7
8
9
10
11
Time (sec)
Preliminary Data Sheet #: SG130
Page 11 of 16
Rev: P00 Date: 7/12/06
© Copyright 2006 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
SCG2000iG Typical Step Response due to a -20ppm Freq. Step
Figure 13
200.0E+0
000.0E+0
-200.0E+0
-400.0E+0
-600.0E+0
-800.0E+0
-1.0E+3
-1.2E+3
-1.4E+3
-1.6E+3
-1.8E+3
4
4.2
4.4
4.6
4.8
5
5.2
5.4
5.6
5.8
6
Time (sec)
SCG2000iG Typical 1µs Phase Transient Response
Figure 14
1.2E-6
1.0E-6
800.0E-9
600.0E-9
400.0E-9
200.0E-9
000.0E+0
-200.0E-9
4
5
6
7
8
Time (sec)
Preliminary Data Sheet #: SG130
Page 12 of 16
Rev: P00 Date: 7/12/06
© Copyright 2006 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
Tape and Reel Dimensions
Figure 15
Preliminary Data Sheet #: SG130
Page 13 of 16
Rev: P00 Date: 7/12/06
© Copyright 2006 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 (2000iG)
FFF.FFF equals the Oscillator Output frequency (001.544, 002.048, 016.384, 019.44, 020.48,
037.056, 044.736, 049.152, 051.84, 065.536, 077.76, 125.00)
M equals MHZ and is added to all part numbers
Example: To order an SCG2000iG with an Oscillator Output of 19.44 MHz,
Order part number SCG2000iG-019.44M
Please contact Connor-Winfield for other frequencies that may be available.
Preliminary Data Sheet #: SG130
Page 14 of 16
Rev: P00 Date: 7/12/06
© Copyright 2006 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
Preliminary Data Sheet #: SG130
Page 15 of 16
Rev: P00 Date: 7/12/06
© Copyright 2006 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
Revision
Revision Date
Note
00
7/12/06
Preliminary Release
相关型号：
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