Pin Description
Table 2
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Connection
Reference Output
TCK
TMS
Ground
Free Run Enable/TDI
GND
Loss of Reference (LOR)
Loss of Lock (LOL)
Reference Input
Oscillator Output
Tri-State enable
Vcc
TDO
Input Freq. Select B
Input Freq. Select A
All SCG2000 Models
Description
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
Free Run enable pin. 1 = Free Run at nominal frequency ±20ppm. Input is pulled to
Alarm indicator. 1 = The reference has been lost.
Alarm indicator. 1 = Phase lock has been lost
Input reference frequency
Output frequency is dependent on SCG model
Tri State control for all outputs. 1 = Hi-Z, 0 = normal. Input is pulled to GND.
3.3V Supply Voltage.
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.
Typical Application
Figure 2
BITS
System
Signal
Input Select
Line Card 1
A
A
B
M
UX
Y
CW STM/MSTM m
’s
odule
B
S
M
UX
Y
CW SCG
’s
2000/4000
Clock out
S
RCV
Tim Card #N
ing
A
A
B
M
UX
Y
CW STM/M
’s
STM m
odule
M
UX
B
Line Card N
S
CW SCG
’s
2000/4000
Clock out
Y
S
RCV
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
CONNOR-WINFIELD [ CONNOR-WINFIELD CORPORATION ]
