FWLF1524P2YXX Datasheet, PDF (3/11 Pages) Finisar Corporation. – 4 Gigabit RoHS Compliant CWDM SFP Transceiver

FWLF1524P2yxx SFP Product Specification – April 2012
Finisar
I. Pin Descriptions
Pin
Symbol
Name/Description
Ref.
1
V_EET
Transmitter Ground (Common with Receiver Ground)
1
2
T_FAULT
Transmitter Fault. Not supported.
3
T_DIS
Transmitter Disable. Laser output disabled on high or open.
2
4 MOD_DEF(2) Module Definition 2. Data line for Serial ID.
3
5 MOD_DEF(1) Module Definition 1. Clock line for Serial ID.
3
6 MOD_DEF(0) Module Definition 0. Grounded within the module.
3
7
Rate Select Open or Low = 1.063 Gb/s or 2.125 Gb/s Fibre Channel, 1.25 Gb/s
4
Gigabit Ethernet (Low Bandwidth)
High =
2.125 or 4.25 Gb/s Fibre Channel (High Bandwidth)
8
LOS
Loss of Signal indication. Logic 0 indicates normal operation.
5
9
V_EER
Receiver Ground (Common with Transmitter Ground)
1
10
V_EER
Receiver Ground (Common with Transmitter Ground)
1
11
V_EER
Receiver Ground (Common with Transmitter Ground)
1
12
RD-
Receiver Inverted DATA out. AC Coupled
13
RD+
Receiver Non-inverted DATA out. AC Coupled
14
V_EER
Receiver Ground (Common with Transmitter Ground)
1
15
V_CCR
Receiver Power Supply
16
V_CCT
Transmitter Power Supply
17
V_EET
Transmitter Ground (Common with Receiver Ground)
1
18
TD+
Transmitter Non-Inverted DATA in. AC Coupled.
19
TD-
Transmitter Inverted DATA in. AC Coupled.
20
V_EET
Transmitter Ground (Common with Receiver Ground)
1
Notes:
1. Circuit ground is internally isolated from chassis ground.
2. Laser output disabled on T_DIS >2.0V or open, enabled on T_DIS <0.8V.
3. Should be pulled up with 4.7k - 10 kohms on host board to a voltage between 2.0V and 3.6V.
MOD_DEF(0) pulls line low to indicate module is plugged in.
4. Specific information when selecting line rate: Rate selection is done in accordance with SFF
Committee SFF-8079 Draft, Rev.1.6, Table 3. Note that rate select can also be set through 2-wire bus
in accordance with SFF-8472⁶ at Bit 3, Byte 110, Address A2h (note: writing ‘1’ selects full bandwidth
operation). Rate select is the logic OR of the input state of Rate Select Pin and 2-wire bus. Non Rate
Selectable version can operate at 1x, 2x, 4x Fibre Channel independent of rate select pin setting.
5. LOS is open collector output. Should be pulled up with 4.7k – 10 kohms on host board to a voltage
between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.
Towards
Bezel
VeeT
20
1
VeeT
TD-
19
2
TXFault
TD+
18
3
TX Disable
VeeT
17
4
MOD-DEF(2)
VccT
16
5
MOD-DEF(1)
VccR
15
Towards
6
MOD-DEF(0)
ASIC
VeeR
14
7
Rate Select
RD+
13
8
LOS
RD-
12
9
VeeR
VeeR
11
10
VeeR
Pinout of Connector Block on Host Board
Finisar Corporation April, 2012 Rev E
Page 3