SCG2010
The SCG2010 is designed as a clean-up PLL
SCG2010 Individual Features:
• Input References (Pin #8) at 19.44 MHz.
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 p-
p of jitter on the reference. Jitter greater than
1us p-p will result in LOL alarm pulses.
• Oscillator Output (Pin #9) at 19.44 MHz.
• Reference Output (Pin #1) at 8 kHz.
Input Reference Selection
Table 11
SCG2010
Input Sel A
(Pin #14)
Input Sel B
(Pin #13)
Reference Frequency
(Pin #8)
X
X
19.44 MHz (Default)
X= Don’t Care
Reference and Output Availability
Table 12
SCG2010
Input Reference
(Pin #8)
Oscillator Output
(Pin #9)
Reference Output
(Pin #1)
19.44 MHz
19.44 MHz
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
CONNOR-WINFIELD [ CONNOR-WINFIELD CORPORATION ]
