afct-57d5anpz Avago Technologies, afct-57d5anpz Datasheet - Page 7

• Manufacturer Part Number: afct-57d5anpz
• Description: Digital Diagnostic Sfp Small Form Pluggable , Low Voltage 3.3 V 25km, 1310nm Dfb, 8.5/4.25/2.125 Gbd Fibre Channel Rohs Compliant Digital Diagnostic Optical Transceiver
• Manufacturer: Avago Technologies

Table 2. Pin Description
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Notes:
1. TX_FAULT is an open collector/drain output, which must be pulled up with a 4.7 k – 10 kΩ resistor on the host board. When high, this output indi-
2. TX_DISABLE is an input that is used to shut down the transmitter optical output. It is internally pulled up (within the transceiver) with a 6.8 kΩ
3. The signals Mod-Def 0, 1, 2 designate the two wire serial interface pins. They must be pulled up with a 4.7 k – 10 kΩ resistor on the host board.
4. RX_LOS (Rx Loss of Signal) is an open collector/drain output that must be pulled up with a 4.7 k – 10 kΩ resistor on the host board. When high, this
5. RD-/+ designate the differential receiver outputs. They are AC coupled 100 Ω differential lines which should be terminated with 100 Ω differential
6. VccR and VccT are the receiver and transmitter power supplies. They are defined at the SFP connector pin. The maximum supply current is 300 mA
7. TD-/+ designate the differential transmitter inputs. They are AC coupled differential lines with 100 Ω differential termination inside the module.
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cates a laser fault of some kind. Low indicates normal operation. In the low state, the output will be pulled to < 0.8 V .
resistor.
Mod-Def 0 is grounded by the module to indicate the module is present
Mod-Def 1 is serial clock line (SCL) of two wire serial interface
Mod-Def 2 is serial data line (SDA) of two wire serial interface
output indicates the received optical power is below the worst case receiver sensitivity (as defined by the standard in use). Low indicates normal
operation. In the low state, the output will be pulled to < 0.8 V .
at the host SERDES input. AC coupling is done inside the transceiver and is not required on the host board. The voltage swing on these lines will
be between 370 and 850 mV differential (185 - 425 mV single ended) when properly terminated.
and the associated in-rush current will typically be no more than 30 mA above steady state after 2 microseconds.
The AC coupling is done inside the module and is not required on the host board. The inputs will accept differential swings of 180 - 1200 mV (90
- 600 mV single ended)
Low (0 – 0.8 V ):
Between (0.8 V and 2.0 V ):
High (2.0 – Vcc max) or OPEN:
Name
VeeT
TX_FAULT
TX_DISABLE
MOD-DEF2
MOD-DEF1
MOD-DEF0
No Connect
RX_LOS
No Connect
VeeR
VeeR
RD-
RD+
VeeR
VccR
VccT
VeeT
TD+
TD-
VeeT
Function/Description
Transmitter Ground
Transmitter Fault Indication – High indicates a fault condition
Transmitter Disable – Module electrical input disables on high or open
Module Definition 2 – Two wire serial ID interface data line (SDA)
Module Definition 1 – Two wire serial ID interface clock line (SCL)
Module Definition 0 – Grounded in module (module present indicator)
Internal pull up 30K Ω to VCC
Loss of Signal – High indicates loss of received optical signal
Internal pull up 30K Ω to VCC
Receiver Ground
Receiver Ground
Inverse Received Data Out
Received Data Out
Receiver Ground
Receiver Power + 3.3 V
Transmitter Power + 3.3 V
Transmitter Ground
Transmitter Data In
Inverse Transmitter Data In
Transmitter Ground
Transmitter on
Undefined
Transmitter Disabled
Notes
Note 1
Note 2
Note 3
Note 3
Note 3
Note 4
Note 5
Note 5
Note 6
Note 6
Note 7
Note 7