sps-43-gb-p2-cdfb Source Photonics, Inc., sps-43-gb-p2-cdfb Datasheet - Page 8

• Manufacturer Part Number: sps-43-gb-p2-cdfb
• Manufacturer: Source Photonics, Inc.

Notes:
1. TX Fault is an open collector/drain output, which should be pulled up with a 4.7K-10KΩ resistor on the host
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. LOS (Loss of Signal) is an open collector/drain output, which should be pulled up with a 4.7K-10KΩ
5. These are the differential receiver outputs. They are DC coupled 100 Ω differential lines which should be
6. V
7. 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
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. (See
connector pin. Maximum supply current is 300 mA. Recommended host board power supply filtering is
shown in figure 4. 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. (See
board. Pull up voltage between 2.0V and V
kind. Low indicates normal operation. In the low state, the output will be pulled to < 0.8V.
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
19
20
cc
R and V
cc
T are the receiver and transmitter power supplies. They are defined as 3.3V±5% at the SFP
Recommended Interface
V
TD-
ee
T
Circuit)
cc
T, R+0.3V. When high, output indicates a laser fault of some
cc
T, R+0.3V. When high, this output indicates the received
cc
T or V
Inv. Transmit Data In
cc
Transmitter Ground
R.
Recommended Interface
SPS-43-GB-P2-CDFB
DS-5141 Rev 03 2010-7-15
Circuit)