Product Main

Specifications

Features
1310nm MQW FP Laser diode transmitter
InGaAs PIN photodiode receiver
Operation data rate 155Mbps
Compliant with SFP MSA and SFF-8472
Industry standard small form pulggable(SFP)
Duplex LC connector
Single +3.3V power supply
Differential LVPECL inputs and outputs
TTL signal detect indicator
Hot-pluggable capability
Application
Switch to switch interface
Switch backplane applications
Router/Server interface
Other optical transmission systerms
Description
ESFP5313-53 is transceiver compliant with SFP MSA.It features high
performance at low cost ,and provides users a cost effective selection for data rate up to155 Mbps.
The transmitter section and the receiver section work independently in the transceiver,The receiver section contains an InGaAs PIN photodiode (active optical wavelength from 1100nm to1650nm),a transimpedance amplifier and a post amplifier(with working data rate up to 155Mbps),functionally transmit received optical power to steady electrical data .The transmitter section contains an 1310nm FP laser diode with back-face monitor and a laser driver with APC function ,transmit input electrical data to steady optical output signal.
The product is compliant with the SFP MSA such as the LC optical interface receptacle ,3.3V supply voltage,TTL signal detect logic .
Specification

Operating Information
Part Number
Input /Output
Signal Detect
Voltage
Temperature
ESFP5X13-XX
AC/AC
TTL
+3.3V
0℃ to 70℃

Absolute Maximum Ratings
Parameter
Symbol
Min.
Max.
Unit
Storage Temperature
Ts
-40
+85
°C
Operating Temperature
To
0
+75
°C
Power Supply Voltage
Vcc
-0.5
+3.7
V

Pin Definitions

Pin#
Name
Function
Notes
1
VeeT
 Transmitter Ground

-
2
TX Fault
 Transmitter Fault Indication

Note 1
3
TX Disable
Transmitter Disable
Note 2, Module disables on high or open
4
MOD-DEF2
 Module Definition 2

Note 3, 2 wire serial ID interface
5
MOD-DEF1
Module Definition 1
Note 3, 2 wire serial ID interface
6
MOD-DEF0
Module Definition 0
Note 3, Grounded in Module
7
Rate Select
 Not Use

-
8
LOS
Loss of Signal
Note 4
9
VeeR
 Receiver Ground

Note 5
10
VeeR
 Receiver Ground

Note 5
11
VeeR
 Receiver Ground

Note 5
12
RD-
Inv. Received Data Out
Note 6
13
RD+
Received Data Out
Note 6
14
VeeR
 Receiver Ground

Note 5
15
VccR
Receiver Power
Note 7, 3.3V± 5%
16
VccT
Transmitter Power
Note 7, 3.3V± 5%
17
VeeT
 Transmitter Ground

Note 5
18
TD+
Transmit Data In
Note 8
19
TD-
Inv. Transmit Data In
Note 8
20
VeeT
 Transmitter Ground

Note 5

Notes
1. TX Fault is an open collector/drain output, which should be pulled up with a 4.7K–10KΩ resistor on the host board. Pull up voltage between 2.0V and VccT, R+0.3V. When high, output indicates a laser fault of some kind. Low indicates normal operation. In the low state, the output will be pulled to < 0.8V.
2. TX disable is an input that is used to shut down the transmitter optical output. It is pulled up within the module with a 4.7–10 KΩ resistor. Its states are:
Low (0 – 0.8V): Transmitter on
(>0.8, < 2.0V): Undefined
High (2.0 – 3.465V): Transmitter Disabled
Open: Transmitter Disabled
3. Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a 4.7K – 10KΩ resistor on the host board. The pull-up voltage shall be VccT or VccR.
Mod-Def 0 is grounded by the module to indicate that the module is present
Mod-Def 1 is the clock line of two wire serial interface for serial ID
Mod-Def 2 is the data line of two wire serial interface for serial ID
4. LOS (Loss of Signal) is an open collector/drain output, which should be pulled up with a 4.7K – 10KΩ resistor. Pull up voltage between 2.0V and VccT, R+0.3V. 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 operation. In the low state, the output will be pulled to < 0.8V.
5. VeeR and VeeT may be internally connected within the SFP module.
6. RD-/+: These are the differential receiver outputs. They are AC coupled 100Ω differential lines which should be terminated with 100Ω (differential) at the user SERDES. The AC coupling is done inside the module and is thus not required on the host board.
7. VccR and VccT are the receiver and transmitter power supplies. They are defined as 3.3V ±5% at the SFP connector pin. Maximum supply current is 300mA. Recommended host board power supply filtering is shown below. 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. VccR and VccT may be internally connected within the SFP transceiver module.
8. TD-/+: These are the differential transmitter inputs. They are AC-coupled, differential lines with 100Ω differential termination inside the module. The AC coupling is done inside the module and is thus not required on the host board.

Block Diagram of Transceiver

Transmitter Section

TX-FAULT

TX Fault is an open collector/drain output,which should be pull up with a 4.7k-10kΩ resistor on the host board .Pull up voltage between 2.0V and VccT,R+0.3V.When high,output indicates a laser fault of some kind .Low indicates normal opteration .In the low state, the output will be pulled to <0.8V.When sensing an improper level in the laser driver,the SFP sets this signal high and turns off the laser.TX-FAULT can be reset with the TX-DISABLE line .The signal is in TTL level.
TX –DISABLE
TX disable is an input that is used to shutdown the transmitter optical output.It is pulled up within the moudle with a 4.7k-10kΩresistor. Its states are :Low(0-0.8V);Transmitter on;(>0.8V,<2.0V):Undefinde;High(2.0—3.465);
Transmitter Disable ;Open:Transmitter Disable.The TX-DISABLE signal is high (TTL logic "1”) to turn off the
laser output. The laser will turn on when TX-DISABLE is low (TTL logic "0”).
TD-/+
These are the differential transmitter inputs .They are AC-couple,differential lines with 100Ωdifferential termination inside the moudle .The inputs will accept differential swings of 500 –2400mV(250mV –1200mV single-ended),
though it is recommended that values between 500 and 1200mV differential (250—600mVsingle-ended)be used for
best EMI performance.
Receiver Section
RX-LOS
LOS(Loss of Signal) is an open collector/drain output,which should be pulled up with a 4.7k-10kΩ resistor.Pull up Voltage between 2.0V and VccT, R+0.3V.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 operation. In the low state,the output will be pulled to <0.8V.
The RX-LOS is high(TTL logic "1”)when there is no incoming light from companion transceiver.This signal is normally used by the systerm for the diagnostic purpose. The signal is operated in TTL level.
RD-/+
These are the differential receiver outputs.They are Ac couple 100Ω differential lines which should be terminated with 100Ω(differential) at the user SERDES.The AC couping is the module and is thus not required on the host board.The voltage swing on these lines will be between 370 and 2000mV differential (185-1000V single ended)when
Properly terminated.
Transmission characteristics of single fiber transceiver:
Product model
Optical wavelength (m)
Transmitting optical power
Receiving sensitivity
Transmission distance (km)
Single/SC/SM 25km
1310/1550
1550/1310
-12-6
-12
25
Single/SC/SM 40km
1310/1550
1550/1330
-3-5
<-31
40
Single/SC/SM 60km
1310/1550
1550/1330
-5-9
<-44
60
Product model
Optical wavelength(nm)
Optical power
(dbm)
Sensibility
(dbm)
Saturability
(dbm)
Dual/SC/MM 2km
1310
-19 ~ -14
-31
-12
Dual/SC/SM 25km
1310
-14 ~ -7
-34
-3
Dual/SC/SM 40km
1310
-9 ~ -5
-38
-3
Dual/SC/SM 60km
1310
-5 ~ -0
-38
-3
Dual/SC/SM 100km
1550DFB
-5 ~ -0
-38
-3