sps-34-gb-p2-edfm Source Photonics, Inc., sps-34-gb-p2-edfm Datasheet - Page 6

• Manufacturer Part Number: sps-34-gb-p2-edfm
• Manufacturer: Source Photonics, Inc.

2. TX disable is an input that is used to shut down the transmitter optical output. It is pulled up within the
3. MOD-DEF0,1,2. These are the module definition pins. They should be pulled up with a 4.7K-10KΩ resistor
4. Power fail warning. If the SPS-34-GB-P2-EDFM is about to lose power, this function detects the situation
5. LOS (Loss of Signal) is an open collector/drain output, which should be pulled up with a 4.7K-10KΩ
6. These are the differential receiver outputs. They are DC coupled 100 Ω differential lines which should be
7. V
8. These are the differential transmitter inputs. They are AC coupled differential lines with 100Ω differential
module with a 4.7-10 KΩ resistor. Its states are:
on the host board. The pull-up voltage shall be V
and sends a signal to warn the optical line terminal (OLT) about the impending line drop.
resistor. Pull up voltage between 2.0V and V
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 < 0.8V.
terminated with 100 Ω (differential) at the user SERDES.
connector pin. Inductors with DC resistance of less than 1Ω should be used in order to maintain the
required voltage at the SFP input pin with 3.3V supply voltage. When the recommended supply filtering
network is used, hot plugging of the SFP transceiver module will result in an inrush current of no more than
30 mA greater than the steady state value.
termination inside the module. The AC coupling is done inside the module and is thus not required on the
host board.
Low (0-0.8V): Transmitter on
(>0.8, < 2.0V): Undefined
High (2.0-3.465V): Transmitter Disabled
Open: Transmitter Disabled
MOD-DEF0 is grounded by the module to indicate that the module is present
MOD-DEF1 is the clock line of two-wire serial interface for serial ID
MOD-DEF2 is the data line of two-wire serial interface for serial ID
cc
R and V
cc
T are the receiver and transmitter power supplies. They are defined as 3.3V±5% at the SFP
cc
T, R+0.3V. When high, this output indicates the received
cc
T or V
cc
R.
SPS-34-GB-P2-EDFM
DS-6013
Rev 01 2010-7-13