afbr-5710z Avago Technologies, afbr-5710z Datasheet - Page 8

• Manufacturer Part Number: afbr-5710z
• Description: Families Of Multi-mode Small Form Factor Pluggable Sfp Optical Transceivers With Optional Dmi For Gigabit Ethernet 1.25 Gbd
• Manufacturer: Avago Technologies

Table 2. Pin Description
8
Notes:
1. TX Fault is an open collector/drain output which should be pulled up externally with a 4.7KΩ – 10 KΩ resistor on the host board to a
2. TX disable input is used to shut down the laser output per the state table below. It is pulled up within the module with a 4.7-10 KΩ
3. Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a 4.7-10 KΩ resistor on the host board to a supply less
4. LOS (Loss of Signal) is an open collector/drain output which should be pulled up externally with a 4.7 K – 10 KΩ resistor on the host board
5. RD-/+: These are the differential receiver outputs. They are AC coupled 100 Ω differential lines which should be terminated with 100 Ω
6. VccR and VccT are the receiver and transmitter power supplies. They are defined as 3.135 – 3.465 V at the SFP connector pin. The in-rush
7. TD-/+: These are the differential transmitter inputs. They are AC coupled differential lines with 100 Ω differential termination inside the
1
10
11
12
13
14
15
16
17
18
19
Pin
2
3
4
5
6
7
8
9
20
supply <VccT+0.3 V or VccR+0.3 V. When high, this output indicates a laser fault of some kind. Low indicates normal operation. In the
low state, the output will be pulled to < 0.8 V.
resistor.
than VccT +0.3 V or VccR+0.3 V.
to a supply < VccT,R+0.3 V. When high, this output indicates the received optical power is below the worst case receiver sensitivity (as
defined by the standard in use). Low indicates normal operatio0n. In the low state, the output will be pulled to < 0.8 V.
differential at the user SERDES. The AC coupling is done inside the module and is thus not required on the host board. The voltage swing
on these lines must be between 370 and 2000 mV differential (185 – 1000 mV single ended) according to the MSA. Typically it will be
1500mv differential.
current will typically be no more than 30 mA above steady state supply current after 500 nanoseconds.
module. The AC coupling is done inside the module and is thus not required on the host board. The inputs will accept differential swings
of 500 – 2400 mV (250 – 1200 mV single ended). However, the applicable recommended differential voltage swing is found in Table 5.
Mod-Def 0 is grounded by the module to indicate that the module is present
Mod-Def 1 is clock line of two wire serial interface for optional serial ID
Mod-Def 2 is data line of two wire serial interface for optional serial ID
Low (0 – 0.8 V):
Between (0.8 V and 2.0 V):
High (2.0 – 3.465 V):
Open:
Name
MOD-DEF2
MOD-DEF1
MOD-DEF0
Rate Selection
LOS
RD-
RD+
VeeT
TX Fault
TX Disable
VeeR
VeeR
VeeR
VeeR
VccR
VccT
VeeT
TD+
TD-
VeeT
Function/Description
Module Definition 2 - Two wire serial ID interface
Module Definition 1 - Two wire serial ID interface
Module Definition 0 - Grounded in module
Not Connected
Loss of Signal
Receiver Ground
Receiver Ground
Receiver Ground
Inverse Received Data Out
Received Data Out
Reciver Ground
Receiver Power -3.3 V ±5%
Inverse Transmitter Data In
Transmitter Ground
Transmitter Fault Indication
Transmitter Disable - Module disables on high or open
Transmitter Power -3.3 V ±5%
Transmitter Ground
Transmitter Data In
Transmitter Ground
Transmitter on
Undefined
Transmitter Disabled
Transmitter Disabled
1
1
1
1
1
1
1
Engagement
Order(insertion)
3
3
3
3
3
3
3
3
3
2
2
3
3
Notes
1
2
3
3
3
4
5
5
6
6
7
7