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Preliminary Data Sheet #: SG040
Page 13 of 16
Rev: P01
Date: 11/13/03
© Copyright 2003 The Connor-Winfield Corp.
All Rights Reserved Specifications subject to change without notice
Recommended PECL Termination
Figure 15
50
Ω
SCGXXXX
LVPECL
OUTPUT
Q
QN
Vcc
GND
50
Ω Transmission Line
3.3 VDC
82
Ω
50
Ω Transmission Line
LVPECL
INPUT
D
DN
Vcc
GND
3.3 VDC
SCGXXXX
LVPECL
OUTPUT
Q
QN
Vcc
GND
LVPECL
INPUT
D
DN
Vcc
GND
50
Ω
130
Ω
82
Ω
3.3 VDC
LVPECL
INPUT
D
DN
Vcc
GND
3.3 VDC
50
Ω Transmission Line
3.3 VDC
50
Ω Transmission Line
3.3 VDC
SCGXXXX
LVPECL
OUTPUT
Q
QN
Vcc
GND
Vcc - 2 VDC
Vcc - 2 VDC
100
Ω
50
Ω Transmission Line
50
Ω Transmission Line
130
Ω
3.3 VDC
150
Ω
150
Ω
If PECL outputs do not drive a long line (< 0.5”),
a single 150
Ω termination resistor to ground may be used for each pin.