afbr-820bz Avago Technologies, afbr-820bz Datasheet - Page 17
afbr-820bz
Manufacturer Part Number
afbr-820bz
Description
Twelve-channel Transmitter And Receiver Pluggable, Parallel-fiber-optic Modules
Manufacturer
Avago Technologies
Datasheet
1.AFBR-820BZ.pdf
(48 pages)
- Current page: 17 of 48
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Figure 11. Case Temperature Measurement Point
Figure 12. Recommended Tx Power Supply Filter
Figure 13. Recommended Rx Power Supply Filter
Figure 14. Differential Signal Definitions
17
Host Supply
Host Supply
V
or V
'V
DI/O
Receiver
+
-
DO
Dinp
Dinn
DI
refers to either V
as appropriate.
10 PF
10 PF
Transmitter
Doutp
Doutn
'V
+
-
DO
68 PH
68 PH
DI
Case Temperature
Measurement Point
'V
'V
'V
DI/OH
DI/OL
DI/OH
0.1 PF
0.1 PF
Module Vcc
Module Vcc
V
V
DI/Op
DI/On
'V
DI/OL
'V
+
-
DI/Opp
Figure 15. Transmitter Data Input Equivalent Circuit
Figure 16. Receiver Data Output Equivalent Circuit
Figure 17. TWS Interface Bus Timing
50
Ohms
SDA in
Din p
Din n
GND
SCL
GND
GND
t
V
V
rSDA
CC
CC
33
33
150 k:
100 k:
100 k:
150 k:
t
rSCL
V
V
CC
t
CC
50
Ohms
SU:SDA
25
25
SDA out
t
AA
V
CC
Dout p
Dout n
50 :
50 :
25
35 pF
35 pF
70 pF
GND
t
HD:SDA
t
fSCL
t
t
DH
fSDA
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