Safran CORTEX Series - Page 64

HIGH DATA RATE RECEIVER
HDR-4G+ USER’S MANUAL
Ref. DTU 100782
Is.Rev 3.5
Date: June 1, 2021
© Safran Data Systems – IMP000074 e14r1
This document is the property of Safran Data Systems.
It cannot be duplicated or distributed without expressed written consent.
Page 64
Note 1: ECL differential outputs must have this termination:
+
_
R = 2.Z0
Balanced ECL :
+
_
Unbalanced ECL :
-2 V
-2 V
External termination :
R = Z0
R = Z0
Z0 : Characteristic Impedance of the line
Note 2: ECL differential inputs have a 50  termination:
+
_
50 
Unbalanced ECL :
50 
-VT
-VT
External 50  termination :
Note 3: LVDS Interface
DEMOD OUT 1
GND
CHA_CLK +
CHA_CLK –
CHA_OUT1 +
CHA_OUT2 –
CHA_OUT3 +
CHA_OUT3 –
8
7
6
5
4
3
2
1
SH1
SH2
J70
GND
CHA_OUT2 +
CHA_OUT1 -
DEMOD OUT 2
GND
CHB_CLK +
CHB_CLK –
CHB_OUT1 +
CHB_OUT2 –
CHB_OUT3 +
CHB_OUT3 –
8
7
6
5
4
3
2
1
SH1
SH2
J71
GND
CHB_OUT2 +
CHB_OUT1 -
DEMOD IN
GND
IN_CLK +
IN_CLK –
IN1 +
IN2 –
IN3 +
IN3 –
8
7
6
5
4
3
2
1
SH1
SH2
J72
GND
IN2 +
IN1 -