SCG203 [CONNOR-WINFIELD]
Support Circuit, 1-Func,;
| 型号： | SCG203 |
| 厂家： | 
CONNOR-WINFIELD CORPORATION |
| 描述： | Support Circuit, 1-Func, ATM 异步传输模式 电信 电信集成电路 |
| 文件： | 总17页 (文件大小：394K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
P L L
SCG200 SERIES
SYNCHRONOUS CLOCK GENERATORS
Application:
Features:
The Connor-Winfield SCG200 Series provides
high precision phase lock loop frequency translation for
the telecommunication applicationsꢀ
SCG200 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
SCG200 Series provides a jitter filtered, wander
following output signal sychronized to a superior Stratum
or peer input reference signalꢀ
l
l
l
l
l
3ꢀ3V High Precision PLL
Tri-State Capability
Active Alarms
Guaranteed Free Run ±20ppm
Fast Acquisition Time (0ꢀ3 sec)
THE CONNOR-WINFIELD CORPꢀ
C O N N O R
W I N F I E L D
2111 COMPREHENSIVE DRIVEꢀ
AURORA, IL 60505ꢀ
FAX (630) 851-5040ꢀ
PHONE (630) 851-4722
HTTP://WWWꢀCONWINꢀCOM
Specifications subject to change without noticeꢀ
DATA SHEET #: SG021
PAGE 1 OF 17 REV: 01 DATE: 12/20/00_
© Copyright 2000 Connor-Winfield all rights reservedꢀ
General Description
Functional Block Diagram
Figure 1
The SCG200 Series provides high precision phase
LOL
(Pin 7)
lock loop frequency translation for the telecommunication
applicationdsꢀ The SCG200 products generate a CMOS output
from an intrinsically low jitter, voltage controlled crystal
oscillatorꢀ Most models provide a jitter attenuated, internal
reference that is connected to a Reference Output pinꢀ
Alarm
Detection
LOR
(Pin 6)
Free Run Enable
(Pin 5)
DPFD
Analog
Low Pass
Filter
Oscillator
Output
(Pin 9)
Free Run
Control
Reference Input
(Pin 8)
Divider
VCXO
SCG200 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 SCG200
Series provides a jitter filtered, wander following output signal
sychronized to a superior Stratum or peer input reference signalꢀ
Divider
Refernce Output
(Pin 1)
Select A
(Pin 14)
Select B
(Pin 13)
The SCG200 Series 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
SCG200 will also enter a Free Run state which will guarantee
a 20 ppm accurate outputꢀ Additionally the Free Run mode
may be entered manually by asserting a high signal to the Free
Run Enable pinꢀ 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 pinꢀ
Tri-State
Buffers
Tri-State Enable
(Pin 10)
All Outputs
The SCG200 Series are 3ꢀ3 Volt components that
typically draw less than 100 mAꢀ All models have a fast
acquisition time of approximately 0ꢀ3 seconds and can be used
in applications that require temperature rating of 0° - 70° Cꢀ
The SCG200 package dimensions are ꢀ775 x ꢀ82 x ꢀ35 on a
six layer FR4 board with surface mount pinsꢀ Parts are
assembled using high temperature solder to withstand surface
mount reflow processꢀ
Model Comparison Table
Table 1
M ax
Duty
Cycle
Input
Re fe re nce Output
(Pin #1)
Os cillator Output
(Pin #9)
M odel
Note s
Re f Fre q.
8-64 kHz
19.44 M Hz
19.44 M Hz
8-64 kHz
8-64 kHz
8-64 kHz
40/60
40/60
40/60
45/55
40/60
40/60
= Input Ref Freq.
8 kHz
1.544 MHz to 77.76 MHz
19.44 M Hz
Basic Model
SCG200
SCG201
SCG202
SCG203
SCG204
SCG205
19.44 M Hz
77.76 M Hz
= Input Ref Freq.
= Input Ref Freq.
19.44 M Hz
1.544 MHz to 77.76 MHz
1.544 MHz to 77.76 MHz
77.76 M Hz
Tight Duty Cycle
33 output se rie s re s is tor
Ω
Re f. Output & Osc. Output
s ync’d w ithin 7 ns
8-64 kHz
40/60
= Input Ref Freq.
1.544 MHz to 77.76 MHz
SCG206
40/60
SCG207
SCG208
19.44 M Hz
19.44 M Hz
51.84 M Hz, 77.76 M Hz
19.44 M Hz
51.84 M Hz, 77.76 M Hz
77.76 M Hz
Re f. Output = Os c. Output
Tight Duty Cycle
48/52
*Features which differentiate a model from the base model (SCG200) are highlighted in boldface color and in the notes columnꢀ
C O N N O R
W I N F I E L D
Specifications subject to change without noticeꢀ
DATA SHEET #: SG021
PAGE 2 OF 17 REV: 01 DATE: 12/20/00_
© Copyright 2000 Connor-Winfield all rights reservedꢀ
ABSOLUTE MAXIMUM RATING
Table 2
All SCG200 Models
SYMBOL
PARAMETER
MINIMUM
-0.5
NOMINAL
MAXIMUM
UNITS
Volts
NOTES
Vcc
Vi
Pow er supply voltage
Input voltage
4
-0.5
5.5
150
Volts
TS
Storage temperature
-65
deg. C
SPECIFICATIONS
Table 3
All SCG200 Models
PARAM ETER
V oltage
NOTES
3.3 V ±5%
1.0
Current
100 mA Maximum
0 to 70 deg. C.
Temperature Range
Input Jitter Tolerance
A cquisition Time
Capture/pull-in range
Output Duty Cycle
Output Rise A nd Fall Time
Output Load
6.25 us, 10 Hz (.05 UI @ 8000 Hz )
A pprox. .3 seconds
2.0
±40 ppm Minimum
40/60 % Min/Max @ 50% Level
3 nS @ 20% to 80% output level
30 pF
A larms
LOR, LOL status signal outputs
±20 ppm
Free Run A c curacy
Package
Fr4 SM 0.765" x 8" x 0.350"
0.4 ns
TDEV
≤
MTIE
2 ns Typical
INPUT AND OUTPUT CHARACTERISTICS
Table 4
All SCG200 Models
SYMBOL
VIH
PARAMETER
MINIMUM NOMINAL MAXIMUM UNITS NOTES
High level input voltage
2
0
5.5
0.8
10
V
V
VIL
Low level input voltage
tIO
I/O to output valid
nS
pF
CO
Output capacitance
10
VHO
VIO
High level output voltage Ioh = -4mA
Low level output voltage Io1 = 8mA
Input reference signal pulse w idth
2.4
30
Vcc Minimum
Vcc Maximum
0.4
tIR
nS
NOTES:
1ꢀ0:
2ꢀ0:
Requires external regulationꢀ
From a 20 ppm offset in reference frequencyꢀ
C O N N O R
W I N F I E L D
Specifications subject to change without noticeꢀ
DATA SHEET #: SG021
PAGE 3 OF 17 REV: 01 DATE: 12/20/00_
© Copyright 2000 Connor-Winfield all rights reservedꢀ
OUTPUT JITTTER SPECIFICATIONS
TABLE 5
All SCG200 Models
JITTER BW 10 Hz - 1 M Hz
SONET JITTER BW 12 KHz - 20 M Hz
FREQUENCY (M Hz)
pS (RM S)
m UI
pS (RM S)
2.5 (Estimated)
2.5 (Estimated)
2.3 (Typical)
2.5 (Estimated)
2.3 (Typical)
2.0 (Typical)
2.4 (Typical)
m UI
NOTES
1.544
2.048
19.44
20.48
44.736
51.84
77.76
10 (Estimated)
10 (Estimated)
9.5 (Typical)
10 (Estimated)
10.5 (Typical)
6.0 (Typical)
7.5 (Typical)
0.02 (Estimated)
0.02 (Estimated)
0.19 (Typical)
0.21 (Estimated)
0.47 (Typical)
0.30 (Typical)
0.58 (Typical)
0.04 (Estimated)
0.05 (Estimated)
0.05 (Typical)
0.05 (Estimated)
0.10 (Typical)
0.10 (Typical)
0.19 (Typical)
OUTPUT PROGRAMMING
TABLE 6
All SCG 200 Models
TRISTATE
FREERUN
OUTPUT
Locked to reference selected (default)
0
1
0
0
X
1
Hi Z Tristate condition
Free Run at nominal frequency
ALARM STATES
All SCG200 Models
TABLE 7
LOL
LOR
ALARM
OUTPUT
OUTPUT
OUTPUT
0
1
0
0
1
No alarm
Loss-of-Lock
X
Loss-of-Reference
Package Dimensions
Figure 2
Recommended Footprint Dimensions
Figure 3
0ꢀ800 (20ꢀ32mm)
0ꢀ640 (16ꢀ26mm)
0ꢀ080 (2ꢀ03mm)
0ꢀ050 TYP
(1ꢀ27mm)
0ꢀ100
(2ꢀ54mm)
Pin 1
0ꢀ050 TYP
(1ꢀ27mm)
0ꢀ650
(16ꢀ51mm)
C O N N O R
W I N F I E L D
Specifications subject to change without noticeꢀ
DATA SHEET #: SG021
PAGE 4 OF 17 REV: 01 DATE: 12/20/00_
© Copyright 2000 Connor-Winfield all rights reservedꢀ
PIN DESCRIPTION
SCG200 Series
PIN #
CONNECTION
DESCRIPTION
1
Reference Output
TCK
-Output frequency is dependent on SCG modelꢀ
2
-JTAG pin that is used only by Connor-Winfield for programmingꢀ Do not connect
-JTAG pin that is used only by Connor-Winfield for programmingꢀ Do not connect
-Groundꢀ
3
TMS
4
Ground
5
Free Run Enable/TDI
Loss of Reference (LOR)
Loss of Lock (LOL)
Reference Input
Oscillator Output
Tri-State Enable
Vcc
-Free Run enable pinꢀ 1 = Free Run at nominal frequency ±20ppmꢀ Input is pulled to GNDꢀ
-Alarm indicatorꢀ 1 = A reference has been lostꢀ
6
7
-Alarm indicatorꢀ 1 = Phase lock has been lost
8
-Input reference frequencyꢀ
9
-Output frequency is dependent on SCG modelꢀ
10
11
12
13
14
-Tri-State control for all outputsꢀ 1=Hi-Z, 0=normalꢀ Input is pulled to GNDꢀ
-3ꢀ3V Supply Voltageꢀ
TDO
-JTAG pin that is used only by Connor-Winfield for programmingꢀ Do not connect
-Control pin B used to select input frequencyꢀ Input is pulled to GNDꢀ
-Control pin A used to select input frequencyꢀ Input is pulled to GNDꢀ
Input Freqꢀ Select B
Input Freqꢀ Select A
Typical Application
Figure 4
C O N N O R
W I N F I E L D
Specifications subject to change without noticeꢀ
DATA SHEET #: SG021
PAGE 5 OF 17 REV: 01 DATE: 12/20/00_
© Copyright 2000 Connor-Winfield all rights reservedꢀ
Figure 5: SCG200 Series Typical TDEV
Figure 6: SCG200 Series Typical MTIE
C O N N O R
W I N F I E L D
Specifications subject to change without noticeꢀ
DATA SHEET #: SG021
PAGE 6 OF 17 REV: 01 DATE: 12/20/00_
© Copyright 2000 Connor-Winfield all rights reservedꢀ
Typical System Test Set-up
Figure 7
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
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9
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0
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0
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9
10
MHz
M
1
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1
0
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2
4
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-
5
.
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2
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6
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2
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-
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1
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s
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Target System Under Test
External
Reference
Input
DS1 rate RZ (1.544 MHz), E1 rate RZ or 8 kHz
clock RZ with noise modulation
Arbitrary
Waveform
Generator
Standards
Compliance
Documents
Clock or BITS logic level
clock input (TTL, CMOS,
etc.)
MTIE, TDEV, Wander Transfer,
and Wander Generation Plots
S
a
m
p
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e
W
a
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d
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r
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(
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)
f
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S
T
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/
M
S
T
M
-
S
3
1
.
0
E
-
6
10
MHz
T
y
f
d
p
h
i
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c
a
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r
e
A
s
P
p
R
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-
3
0
0
0
s
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-
J
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(
2
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@
1
0
H
z
)
r
e
2
2
1
9
9
8
k
1
0
0
.
0
E
-
9
. . . . ...
1
0
.
0
0
E
E
-
9
9
2
T
D
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V
G
G
R
1
1
2
4
4
4
-
-
F
F
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g
5
5
.
1
1
.
E
-
R
2
4
-
3
Arbitrary
Waveform
Generator
[Noise
1
0
0
.
0
- 1
1
0
.
0
E
-
3
1
0
0
.
0
E
-
3
1
.
0
E
+0
1
0
.0
E
+
0
1
0
0
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.
0
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+
0
1
.
0
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+
3
C
o
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t
1
9
9
8
C
n n o r- W in f ie ld a lll r ig h ts r e s e r v e d
I
n
t
e
g
r
a
t
io
n
T
i
m
e
(
s
e
c
)
External
Reference
Input
Source]
Time-stamped ensemble
based on absolute time
reference (10MHz input)
10
MHz
DS1 rate [1.544 MHz] BITS Bipolar
Phase Error data output
DS-1, OC-3, OC-12 electrical or optical signals
External
Reference
Input
Tektronix
SJ300E
10
MHz
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
Alarm Timing Diagram
Figure 8
LOR (loss-of-reference)
EXT REF
(Divided down to 8 kHz)
INT 8K REF
125 µs
250µs - 375µs
LOR
LOL
4.396 s
31.25µs - 156.25µs
Φ
φ
< - 90
or
> 90 = 31.25us
Point at which -90 < φ < 90
and is held within that range
LOL (loss-of-lock)
EXT REF
(Divided down to 8 kHz)
INT 8K REF
LOL (If φ > 90 = 31.25us)
4.096 s
C O N N O R
W I N F I E L D
Specifications subject to change without noticeꢀ
DATA SHEET #: SG021
PAGE 7 OF 17 REV: 01 DATE: 12/20/00_
© Copyright 2000 Connor-Winfield all rights reservedꢀ
SCG200
SCG200 INDIVIDUAL FEATURES:
The SCG200 is Connor-Winfields base model for the SCG200
l Four selectable References: 8, 16, 32, and 64 kHzꢀ
l Oscillator Output Available: 1ꢀ544 MHz to 77ꢀ76 MHzꢀ
Series product lineꢀ The SCG200 can lock to one of four input
reference frequencies from 8 to 64 kHz which is selectable using
two input control pinsꢀ
TABLE 8
INPUT REFERENCE SELECTION
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 (SEE NOTE 4.0)
64 kHz (SEE NOTE 4.0)
TABLE 9
REFERENCE AND OUTPUT AVAILABILITY
INPUT
OSCILLATOR
OUTPUT
REFERENCE
REFERENCE
(Pin #8)
OUTPUT
(Pin #1)
(Pin #9)
8 kHz
16 kHz
8 kHz
8 kHz
16 kHz
8 kHz
19.44 MHz
1.544, 2.048, 20.48, 44.736, 51.84
and 77.76 MHz
16 kHz
32 kHz
64 kHz
16 kHz
32 kHz
64 kHz
NOTES:
NOTE 4ꢀ0:
Not available with 19ꢀ44 MHz outputꢀ
C O N N O R
W I N F I E L D
Specifications subject to change without noticeꢀ
DATA SHEET #: SG021
PAGE 8 OF 17 REV: 01 DATE: 12/20/00_
© Copyright 2000 Connor-Winfield all rights reservedꢀ
SCG201
SCG201 INDIVIDUAL FEATURES:
l Input References (Pin #8) at 19ꢀ44 MHzꢀ
l Oscillator Output (Pin #9) at 19ꢀ44 MHzꢀ
l Reference Output (Pin #1) at 8 kHzꢀ
The SCG201 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 kHzꢀ
TABLE 10
INPUT REFERENCE SELECTION
INPUT SEL A
(Pin #14)
INPUT SEL B
(Pin #13)
REFERENCE FREQUENCY
(Pin #8)
0
1
0
1
0
0
1
1
19.44 MHz
NOT USED
NOT USED
NOT USED
TABLE 11
REFERENCE AND OUTPUT AVAILABILITY
INPUT
OSCILLATOR
OUTPUT
REFERENCE
REFERENCE
(Pin #8)
OUTPUT
(Pin #1)
(Pin #9)
19.44 MHz
19.44 MHz
8 kHz
C O N N O R
W I N F I E L D
Specifications subject to change without noticeꢀ
DATA SHEET #: SG021
PAGE 9 OF 17 REV: 01 DATE: 12/20/00_
© Copyright 2000 Connor-Winfield all rights reservedꢀ
SCG202
SCG202 INDIVIDUAL FEATURES:
l Input References (Pin #8) at 19ꢀ44 MHzꢀ
l Oscillator Output (Pin #9) at 77ꢀ76 MHzꢀ
l Reference Output (Pin #1) at 19ꢀ44 MHzꢀ
The SCG202 accepts a 19ꢀ44 MHz Input Reference (Pin #8) and
provides a 19ꢀ44 MHz Output Reference (Pin #1) and a 77ꢀ76 MHz
signal output on Output #2
TABLE 12
INPUT REFERENCE SELECTION
INPUT SEL A
(Pin #14)
INPUT SEL B
(Pin #13)
REFERENCE FREQUENCY
(Pin #8)
0
1
0
1
0
0
1
1
19.44 MHz
NOT USED
NOT USED
NOT USED
TABLE 13
REFERENCE AND OUTPUT AVAILABILITY
INPUT
OSCILLATOR
OUTPUT
OUTPUT
REFERENCE
(Pin #8)
REFERENCE
(Pin #1)
(Pin #9)
19.44 MHz
77.76 MHz
19.44 MHz
C O N N O R
W I N F I E L D
Specifications subject to change without noticeꢀ
DATA SHEET #: SG021
PAGE 10 OF 17 REV: 01 DATE: 12/20/00_
© Copyright 2000 Connor-Winfield all rights reservedꢀ
SCG203
SCG203 INDIVIDUAL FEATURES:
l Four selectable References: 8, 16, 32, and 64 kHzꢀ
l Oscillator Output Available: 1ꢀ544 MHz to 77ꢀ76 MHzꢀ
l Tight Duty cycle
The SCG203 is similar to the SCG200 but with a tighter duty cycleꢀ
of 45/55ꢀ
TABLE 14
INPUT REFERENCE SELECTION
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 (SEE NOTE 4.0)
64 kHz (SEE NOTE 4.0)
TABLE 15
REFERENCE AND OUTPUT AVAILABILITY
INPUT
OSCILLATOR
OUTPUT
REFERENCE
REFERENCE
(Pin #8)
OUTPUT
(Pin #1)
(Pin #9)
8 kHz
16 kHz
8 kHz
8 kHz
16 kHz
8 kHz
19.44 MHz
1.544, 2.048, 20.48, 44.736, 51.84
and 77.76 MHz
16 kHz
32 kHz
64 kHz
16 kHz
32 kHz
64 kHz
NOTES:
NOTE 4ꢀ0:
Not available with 19ꢀ44 MHz outputꢀ
C O N N O R
W I N F I E L D
Specifications subject to change without noticeꢀ
DATA SHEET #: SG021
PAGE 11 OF 17 REV: 01 DATE: 12/20/00_
© Copyright 2000 Connor-Winfield all rights reservedꢀ
SCG204
SCG204 INDIVIDUAL FEATURES:
The SCG204 is similar to the SCG200 but has a 33W resistor in
series with the oscillator output (Pin #9)ꢀ The rest of the SCG200
Series have a 56W resistor in series with the oscillator outputꢀ
l Four selectable References: 8, 16, 32, and 64 kHzꢀ
l Oscillator Output Available: 1ꢀ544 MHz to 77ꢀ76 MHzꢀ
TABLE 16
INPUT REFERENCE SELECTION
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 (SEE NOTE 4.0)
64 kHz (SEE NOTE 4.0)
TABLE 17
REFERENCE AND OUTPUT AVAILABILITY
INPUT
OSCILLATOR
OUTPUT
REFERENCE
REFERENCE
(Pin #8)
OUTPUT
(Pin #1)
(Pin #9)
8 kHz
16 kHz
8 kHz
8 kHz
16 kHz
8 kHz
19.44 MHz
1.544, 2.048, 20.48, 44.736, 51.84
and 77.76 MHz
16 kHz
32 kHz
64 kHz
16 kHz
32 kHz
64 kHz
NOTES:
NOTE 4ꢀ0:
Not available with 19ꢀ44 MHz outputꢀ
C O N N O R
W I N F I E L D
Specifications subject to change without noticeꢀ
DATA SHEET #: SG021
PAGE 12 OF 17 REV: 01 DATE: 12/20/00_
© Copyright 2000 Connor-Winfield all rights reservedꢀ
SCG205
SCG205 INDIVIDUAL FEATURES:
l Four selectable References: 8, 16, 32, and 64 kHzꢀ
l Oscillator Output Available: 77ꢀ76 MHz only
The SCG205 can use any 1 of 4 selectable Input References
frequenciesꢀ The Output Reference frequency is equal to the Input
Reference frequency, while 77ꢀ76 Mhz is supplied as the Output
frequency regardless of the input frequencyꢀ
TABLE 18
INPUT REFERENCE SELECTION
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
TABLE 19
REFERENCE AND OUTPUT AVAILABILITY
INPUT
OSCILLATOR
OUTPUT
REFERENCE
REFERENCE
(Pin #8)
OUTPUT
(Pin #1)
(Pin #9)
8 kHz
16 kHz
32 kHz
64 kHz
77.76 MHz
77.76 MHz
77.76 MHz
77.76 MHz
8 kHz
16 kHz
32 kHz
64 kHz
C O N N O R
W I N F I E L D
Specifications subject to change without noticeꢀ
DATA SHEET #: SG021
PAGE 13 OF 17 REV: 01 DATE: 12/20/00_
© Copyright 2000 Connor-Winfield all rights reservedꢀ
SCG206
SCG206 INDIVIDUAL FEATURES:
The SCG206s Output #1 (Pin #1) is skew adjusted to Output #2
(Pin #9)ꢀ The two signals are edge aligned within 4 nSꢀ
l Four selectable References: 8, 16, 32, and 64 kHzꢀ
l Oscillator Output Available: 1ꢀ544 MHz to 77ꢀ76 MHzꢀ
TABLE 20
INPUT REFERENCE SELECTION
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 (SEENOTE4.0)
64 kHz (SEENOTE4.0)
TABLE 21
REFERENCE AND OUTPUT AVAILABILITY
INPUT
OSCILLATOR
REFERENCE
REFERENCE
(Pin #8)
OUTPUT
OUTPUT
(Pin #1)
(Pin #9)
8 kHz
16 kHz
8 kHz
8 kHz
16 kHz
8 kHz
19.44 MHz
1.544, 2.048, 20.48, 44.736, 51.84
and 77.76 MHz
16 kHz
32 kHz
16 kHz
32 kHz
64 kHz
64 kHz
NOTES:
NOTE 4ꢀ0:
Not available with 19ꢀ44 MHz outputꢀ
Figure 9: SCG206 Skew of Reference Output to Oscillator Output
C O N N O R
W I N F I E L D
Specifications subject to change without noticeꢀ
DATA SHEET #: SG021
PAGE 14 OF 17 REV: 01 DATE: 12/20/00_
© Copyright 2000 Connor-Winfield all rights reservedꢀ
SCG207
SCG207 INDIVIDUAL FEATURES:
l Input References (Pin #8) at 19ꢀ44 MHzꢀ
The SCG207 is designed to provide two output frequencies that are
equalꢀ The Reference Output is actually a second Oscillator Outputꢀ
SCG207 is available with either 77ꢀ76 MHz outputs or with 51ꢀ84
MHz outputsꢀ
l Oscillator Output (Pin #9) equals Reference Output (Pin #1)
TABLE 22
INPUT REFERENCE SELECTION
INPUT SEL A
(Pin #14)
INPUT SEL B
(Pin #13)
REFERENCE FREQUENCY
(Pin #8)
0
1
0
1
0
0
1
1
19.44 MHz
NOT USED
NOT USED
NOT USED
TABLE 23
REFERENCE AND OUTPUT AVAILABILITY
INPUT
REFERENCE
(Pin #8)
OSCILLATOR
OUTPUT
REFERENCE
OUTPUT
(Pin #1)
(Pin #9)
19.44 MHz
19.44 MHz
77.76 MHz
51.84 MHz
77.76 MHz
51.84 MHz
C O N N O R
W I N F I E L D
Specifications subject to change without noticeꢀ
DATA SHEET #: SG021
PAGE 15 OF 17 REV: 01 DATE: 12/20/00_
© Copyright 2000 Connor-Winfield all rights reservedꢀ
SCG208
SCG202 INDIVIDUAL FEATURES:
l Input References (Pin #8) at 19ꢀ44 MHzꢀ
l Oscillator Output (Pin #9) at 77ꢀ76 MHzꢀ
l Reference Output (Pin #1) at 19ꢀ44 MHzꢀ
The SCG208 is similar to the SCG202 but has a tighter duty cycle
of 48/52ꢀ
TABLE 24
INPUT REFERENCE SELECTION
INPUT SEL A
(Pin #14)
INPUT SEL B
(Pin #13)
REFERENCE FREQUENCY
(Pin #8)
0
1
0
1
0
0
1
1
19.44 MHz
NOT USED
NOT USED
NOT USED
TABLE 25
REFERENCE AND OUTPUT AVAILABILITY
INPUT
OSCILLATOR
OUTPUT
OUTPUT
REFERENCE
(Pin #8)
REFERENCE
(Pin #1)
(Pin #9)
19.44 MHz
77.76 MHz
19.44 MHz
C O N N O R
W I N F I E L D
Specifications subject to change without noticeꢀ
DATA SHEET #: SG021
PAGE 16 OF 17 REV: 01 DATE: 12/20/00_
© Copyright 2000 Connor-Winfield all rights reservedꢀ
R E V IS IO N
R E V IS IO N D A T E
N O T E
0 0
1 2 / 8 / 0 0
G e n e ra l R e le a s e
C h a n g e d t a b le s t o p rin t o n
N o n -P o s t S c rip t P rin t e rs
0 1
1 2 / 2 0 / 0 0
C O N N O R
W I N F I E L D
Specifications subject to change without noticeꢀ
DATA SHEET #: SG021
PAGE 17 OF 17 REV: 01 DATE: 12/20/00_
© Copyright 2000 Connor-Winfield all rights reservedꢀ
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