4.25G SFP Dual Fiber 500m Multimode SFP Optical Transceiver Module
Features
- +3.3V single power supply
- 550m transmission with 50/125µm MMF, 300m transmission with 62.5/125µm MMF
- Supports 1.0625/2.125/4.25Gb/s Fiber Channel Operation
- Gigabit Ethernet compatible
- 850nm VCSEL laser transmitter
- SFP MSA SFF-8074i compliant
- Digital Diagnostic SFF-8472 compliant
- Compatible with RoHS
- Operating case temperature:
Commercial: 0 to +70°C
Industrial: -40 to +85°C
Applications
- Tri Rate 1.0625 / 2.125 / 4.25Gbp/s Fiber Channel
- 1.25Gbp/s 1000Base-SX Ethernet
-
Description
The transceiver consists of three sections: a 850nm VCSEL 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 the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA)1. They are compatible with Fiber Channel per FC-PI-2 Rev. 10.0. also simultaneously compatible with Gigabit Ethernet as specified in IEEE Std 802.3.
Absolute Maximum Ratings
Table 1 - Absolute Maximum Ratings
| Parameter |
Symbol |
Min |
Max |
Unit |
| Power Supply Voltage |
Vcc-Vee |
0 |
3.6 |
V |
| Operating Case Temperature (Commercial) |
Tc |
0 |
70 |
°C |
| Operating Case Temperature (Industrial) |
Tc |
-40 |
+85 |
°C |
| Storage Temperature |
Ts |
-40 |
+85 |
°C |
| Operating Humidity |
- |
5 |
90 |
% |
Recommended Operating Conditions
Table 2 - Recommended Operating Conditions
| Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
| Operating Case Temperature |
Standard |
Tc |
0 |
|
+70 |
°C |
| Power Supply Voltage |
Vcc |
3.13 |
3.3 |
3.47 |
V |
| Power Supply Current |
Icc |
|
|
240 |
mA |
| Data Rate |
|
|
4.25 |
|
Gbps |
| |
|
|
|
|
|
|
Optical and Electrical Characteristics
Table 3 - Optical and Electrical Characteristics
| Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
Notes |
| Transmitter |
| Date Rate |
|
|
4.25 |
|
Gb/S |
|
| Centre Wavelength |
λc |
830 |
|
860 |
nm |
|
| Spectral Width (RMS) |
∆λ |
|
|
1 |
nm |
|
| Average Output Power (BOL) |
Pout |
-9 |
|
-2.5 |
dBm |
1 |
| Extinction Ratio |
ER |
5 |
|
|
dB |
|
|
Average Launch Power-OFF
Transmitter
|
Pout |
|
|
-4.5 |
dBm |
|
| Optical Eye Diagram |
Fiber Channel Compliant |
| Optical Rise/Fall Time(20%~80%) |
tr/tf |
|
|
120 |
ns |
|
| Data Input Swing Differential |
VIN |
300 |
|
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 |
830 |
|
860 |
nm |
|
| Receiver Sensitivity (BOL) |
|
|
|
-15 |
dBm |
3 |
| Receiver Overload |
|
0 |
|
|
dBm |
3 |
| LOS De-Assert |
LOSD |
|
|
-20 |
dBm |
|
| LOS Assert |
LOSA |
-25 |
|
|
dBm |
|
| LOS Hysteresis |
|
0.5 |
|
6 |
dB |
|
| Receiver Reflectance |
|
|
|
-20 |
dB |
|
| Data Output Swing Differential |
Vout |
350 |
|
1800 |
mV |
4 |
| Loss of Signal (LOS) Assert Time |
TAssert |
|
|
500 |
nS |
|
| Loss of Signal (LOS) DeassertTime |
TDeassert |
|
|
500 |
nS |
|
| LOS |
High |
2.0 |
|
Vcc |
V |
|
| Low |
0 |
|
0.8 |
V |
|
| |
|
|
|
|
|
|
|
|
Notes:
1. The optical power is launched into MMF.
2. PECL input, internally AC-coupled and terminated.
3. Measured with a PRBS 27-1 test pattern @1250Mbps, 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 |
-9 to -3 |
dBm |
±3dB |
Internal / External |
| RX Power |
-23 to -3 |
dBm |
±3dB |
Internal / External |
Product Tags:
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|
SFP Dual Fiber Optical Transceiver Module , Multimode Cisco Sfp Transceiver Module Images
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