Catacomm Corporation
Sdn Bhd

Unit E1-29-6, Block E1,
Dataran Prima, Jalan PJU 1/42,
47301 Petaling Jaya,
Selangor, Malaysia.
+603-7803 8228
+603-7803 8228
clyeow@catacomm-corp.com

155M ~ 2.67Gbps SFP Optical Transceiver, 2 km 每 20 km Reach

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155M ~ 2.67Gbps SFP Optical Transceiver, 2 km 每 20 km Reach Special Type SFP modules Fiber Modules AD-Net
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Description


The SFP transceivers are high performance, cost effective modules supporting dual data-rate of  2.67Gbps and 2km – 20 km transmission distance with SMF or 300 m by MMF.
 
The transceiver consists of three sections: a FP laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements.
 
The transceivers are compatible with SFP Multi-Source Agreement (MSA) and SFF-8472. For further information, please refer to SFP MSA.
SDH STM-16 and SONET OC-48 system
2X Fiber Channel
Switch to Switch interface
Switched backplane applications
Router/Server interface
Other optical transmission systems
 

Features
 

Up to 2.67Gb/s bi-directional data links
1310nm FP laser and PIN photodetector for 2km transmission
Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
Digital Diagnostic Monitoring:
Internal Calibration or External Calibration
Compatible with RoHS
+3.3V single power supply
Operating case temperature:
Standard :  0 to +70°C
Industrial : -40 to +85°C
 

Specifications


Absolute Maximum Ratings
Table 1 – Absolute Maximum Ratings
Parameter
Symbol
Min
Max
Unit
Supply Voltage
Vcc
-0.5
4.5
V
Storage Temperature
Ts
-40
+85
°C
Operating Humidity
5
85
%
Recommended Operating Conditions
Table 2 – Recommended Operating Conditions
Parameter
Symbol
Min
Typical
Max
Unit
Operating Case Temperature
Standard
Tc
0
 
+70
°C
Industrial
-40
 
+85
°C
Power Supply Voltage
Vcc
3.13
3.3
3.47
V
Power Supply Current
Icc
 
 
300
mA
Data Rate
 
 
2.67
 
Gbps
 
Optical and Electrical Characteristics
Table 3 – Optical and Electrical Characteristics
Parameter
Symbol
Min
Typical
Max
Unit
Notes
Transmitter
Centre Wavelength
λc
1260
1310
1360
nm
 
Spectral Width (RMS)
σ
 
 
4
nm
 
Average Output Power
Pout
-10
 
-3
dBm
1
Extinction Ratio
ER
9
 
 
dB
 
Optical Rise/Fall Time (20%~80%)
tr/tf
 
 
0.16
ns
 
Data Input Swing Differential
VIN
400
 
1800
mV
2
Input Differential Impedance
ZIN
90
100
110
Ω
 
TX Disable
Disable
 
2.0
 
Vcc
V
 
Enable
 
0
 
0.8
V
 
TX Fault
Fault
 
2.0
 
Vcc
V
 
Normal
 
0
 
0.8
V
 
Receiver
Centre Wavelength
λc
1260
 
1580
nm
 
Receiver Sensitivity
 
 
 
-18
dBm
3
Receiver Overload
 
-3
 
 
dBm
3
LOS De-Assert
LOSD
 
 
-20
dBm
 
LOS Assert
LOSA
-30
 
 
dBm
 
LOS Hysteresis
 
1
 
4
dB
 
Data Output Swing Differential
Vout
370
 
1800
mV
4
LOS
High
2.0
 
Vcc
V
 
Low
 
 
0.8
V
 
 
 
 
 
 
 
 
 
 
Notes:
1. The optical power is launched into SMF.
2. PECL input, internally AC-coupled and terminated.
3. Measured with a PRBS 223-1 test pattern @2488Mbps, BER ≤1×10-12.
4. Internally AC-coupled. 
 
Timing and Electrical
Table 4 – Timing and Electrical
Parameter
Symbol
Min
Typical
Max
Unit
Tx Disable Negate Time
t_on
 
 
1
ms
Tx Disable Assert Time
t_off
 
 
10
µs
Time To Initialize, including Reset of Tx Fault
t_init
 
 
300
ms
Tx Fault Assert Time
t_fault
 
 
100
µs
Tx Disable To Reset
t_reset
10
 
 
µs
LOS Assert Time
t_loss_on
 
 
100
µs
LOS De-assert Time
t_loss_off
 
 
100
µs
Serial ID Clock Rate
f_serial_clock
 
 
400
KHz
MOD_DEF (0:2)-High
VH
2
 
Vcc
V
MOD_DEF (0:2)-Low
VL
 
 
0.8
V
 
 
Diagnostics
Table 5 – Diagnostics Specification
Parameter
Range
Unit
Accuracy
Calibration
Temperature
0 to +70
°C
±3°C
Internal / External
-40 to +85
Voltage
3.0 to 3.6
V
±3%
Internal / External
Bias Current
0 to 100
mA
±10%
Internal / External
TX Power
-10 to -3
dBm
±3dB
Internal / External
RX Power
-23 to -3
dBm
±3dB
Internal / External
 
Pin Descriptions
Pin
Signal Name
Description
Plug Seq.
Notes
1
VEET
Transmitter Ground
1
 
2
TX FAULT
Transmitter Fault Indication
3
Note 1
3
TX DISABLE
Transmitter Disable
3
Note 2
4
MOD_DEF(2)
SDA Serial Data Signal
3
Note 3
5
MOD_DEF(1)
SCL Serial Clock Signal
3
Note 3
6
MOD_DEF(0)
TTL Low
3
Note 3
7
Rate Select
Not Connected
3
 
8
LOS
Loss of Signal
3
Note 4
9
VEER
Receiver ground
1
 
10
VEER
Receiver ground
1
 
11
VEER
Receiver ground
1
 
12
RD-
Inv. Received Data Out
3
Note 5
13
RD+
Received Data Out
3
Note 5
14
VEER
Receiver ground
1
 
15
VCCR
Receiver Power Supply
2
 
16
VCCT
Transmitter Power Supply
2
 
17
VEET
Transmitter Ground
1
 
18
TD+
Transmit Data In
3
Note 6
19
TD-
Inv. Transmit Data In
3
Note 6
20
VEET
Transmitter Ground
1
 
Notes:
Plug Seq.: Pin engagement sequence during hot plugging.
1) TX Fault is an open collector output, which should be pulled up with a 4.7k~10kΩ resistor on the host board to a voltage between 2.0V and Vcc+0.3V. Logic 0 indicates normal operation; Logic 1 indicates a laser fault of some kind. In the low state, the output will be pulled to less than 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 4.7k~10kΩ resistor. Its states are:
Low (0 to 0.8V):             Transmitter on
(>0.8V, < 2.0V):             Undefined
High (2.0 to 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 is an open collector output, which should be pulled up with a 4.7k~10kΩ resistor. Pull up voltage between 2.0V and Vcc+0.3V. Logic 1 indicates loss of signal; Logic 0 indicates normal operation. In the low state, the output will be pulled to less than 0.8V.
5) RD-/+: These are the differential receiver outputs. They are internally AC-coupled 100 differential lines which should be terminated with 100Ω (differential) at the user SERDES.
6) TD-/+: These are the differential transmitter inputs. They are internally AC-coupled, differential lines with 100Ω differential termination inside the module.
 

Ordering Information
 

AN-UM-SFP2.67/850
850nm, 155M ~ 2.67Gbps, 300m, 0 degrees Celsius ~ 70
degrees Celsius, With or without Digital Diagnostic Monitoring
AN-UM-SFP2.67/1310/2KM/D
1310nm, 155M ~ 2.67Gbps, 2KM, 0 degrees Celsius ~ 70
degrees Celsius, With or without Digital Diagnostic Monitoring
AN-UM-SFP2.67/1310/20KM/D
1310nm, 155M ~ 2.67Gbps, 20KM, 0 degrees Celsius ~ 70
degrees Celsius, With or without Digital Diagnostic Monitoring

 

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