afbr-79q4ekz Avago Technologies, afbr-79q4ekz Datasheet - Page 7

• Manufacturer Part Number: afbr-79q4ekz
• Description: 40 Gigabit Ethernet 40gbase-sr4 Qsfp+ Pluggable, Parallel Fiber-optics Module
• Manufacturer: Avago Technologies

Receiver Electrical Characteristics
The following characteristics are defined over the Recommended Operating Conditions unless otherwise noted. Typical
values are for Tc = 40°C, Vcc = 3.3 V
*
Figure 4. Rx Electrical Eye Mask Coordinates (TP4) at Hit ratio 5 x 10
7
Parameter
(From Table 86A-3 of IEEE 802.3ba)
Single ended output voltage
AC common mode voltage (RMS)
Termination mismatch at 1MHz
Differential output return loss
Common-mode output return loss
Output transition time 20% to 80%
J2 Jitter output
J9 Jitter output
Eye Mask coordinates:
Y1, Y2
X1, X2
See Figure 6 for Test Point definitions.
-Y1
-Y2
Y2
Y1
0
0
X1
Normalized Time [UI]
X2
Test Point*
TP4
TP4
TP4
TP4
TP4
TP4
TP4
TP4
TP4
1-X1
1.0
86A.4.2.1
86A.4.2.2
See IEEE
See IEEE
802.3ba
802.3ba
-5
hits per sample
Min
-0.3
28
SPECIFICATION VALUES
150, 425
0.29, 0.5
Typ
0.42
0.65
Max
7.5
4
5
Units
mV
mV
dB
dB
ps
UI
UI
UI
%
V
Notes/Conditions
Referred to signal common
RMS
10 MHz to 11.1 GHz
10 MHz to 11.1 GHz
Hit Ratio = 5x10
-5