SFP-ETH-RT-M85-LC
850 nm / 1.25 Gb/s Multimode SFP Transceiver
The SFP-ETH-RT-M85-LC is a multimode optical transceiver that supports signals up to 1.25 Gb/s for bidirectional serial data communications such as 1000BASE-SX.
FEATURES
- SFP MSA compliant
- 1.25 Gb/s:
- 1000BASE-SX compliant
- 850 nm VCSEL Transmitter
- Link distances:
- 300m for 62.5/125 mm multimode fiber
- 550m for 50/125 mm multimode fiber
- RoHS-6 compliant
- Hot pluggable
- Diagnostic Monitoring Interface (DMI)
SPECIFICATIONS
Transmitter Specifications (-10°C < Tc < 85°C, 3.1V < Vcc < 3.5V) |
||||||
| Parameter |
Symbol |
Min. |
Typ. |
Max. |
Units |
Notes |
Optical |
||||||
| Optical Transmit Power |
Po |
-9 |
— |
-3 |
dBm |
Output power is power coupled into a 50/125 µm multimode fiber |
| Output Center Wavelength |
λ |
830 |
|
860 |
nm |
|
| Output Spectrum Width |
Δ λ |
— |
— |
0.85 |
nm |
RMS (σ) |
| Extinction Ratio |
ER |
9 |
— |
— |
dB |
|
| Optical Rise Time |
tr |
|
|
260 |
ps |
20% to 80% values |
| Optical Fall Time |
tf |
|
|
260 |
ps |
20% to 80% values |
| Relative Intensity Noise |
RIN |
|
|
-117 |
dB/Hz |
|
Electrical |
||||||
| Data Input Current – Low |
IIL |
-350 |
|
|
µA |
|
| Data Input Current – High |
IIH |
|
|
350 |
µA |
|
| Differential Input Voltage |
VIH - VIL |
0.5 |
|
2.4 |
V |
Peak-to-peak |
| TX Disable Input Voltage – Low |
VTDIS, L |
0 |
|
0.5 |
V |
There is an internal 4.7 kΩ to 10 kΩ pull-up resistor to VccTX |
| TX Disable Input Voltage – High |
VTDIS, H |
2.0 |
|
Vcc |
V |
|
| TX Disable Assert Time |
TASSERT |
|
|
10 |
µs |
|
| TX Disable De-assert Time |
TDEASSERT |
|
|
1 |
ms |
|
| TX Fault Output Voltage – Low |
TFaultL |
0 |
|
0.5 |
V |
Open collector compatible, 4.7 kΩ to 10 kΩ pull-up to Vcc (Host Supply Voltage) |
| TX Fault Output Voltage – High |
TFaultH |
2.0 |
|
Vcc+0.3 |
V |
|
Receiver Specifications (-10°C < Tc < 85°C, 3.1V < Vcc < 3.5V) |
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Optical |
||||||
| Sensitivity |
Sens |
|
|
-17 |
dBm |
Measured at 27-1 PRBS at BER 1E-12 |
| Maximum Input Power |
Pin |
-3 |
|
|
dBm |
|
| Signal Detect – Asserted |
Pa |
— |
— |
-17 |
dBm |
Transition: low to high |
| Signal Detect – De-Asserted |
Pd |
-30 |
— |
— |
dBm |
Transition: high to low |
| Signal Detect – Hysteresis |
|
1.0 |
— |
|
dB |
|
| Wavelength of Operation |
|
700 |
— |
900 |
nm |
|
Electrical |
||||||
| Differential Output Voltage |
VOH – VOL |
0.6 |
|
2.0 |
V |
|
| Output LOS Voltage – Low |
VOL |
0 |
|
0.5 |
V |
Open collector compatible, 4.7 kΩ to 10 kΩ pull-up to Vcc (Host Supply Voltage) |
| Output LOS Voltage – High |
VOH |
2.0 |
|
Vcc+0.3 |
V |
|
Note: Only connections with patch cords with PC or UPC connectors are supported.
MEDIA GALLERY
ORDERING INFORMATION
| Part number |
Bit Rate (Gb/s) |
1000 BASE |
Distance (m) |
Wavelength (nm) |
Package |
Temp. (°C) |
Tx Power (dBm) |
Rx Sens. (dBm) |
RoHS Compliant |
| SFP-ETH-RT-M85-LC |
1.25 |
SX |
300 / 550* |
850 VCSEL |
SFP with DMI |
-10 to 85 |
-9 to -3 |
-17 |
Yes |
* 300 meter for 62.5/125 mm MM fiber; 550 meter for 50/125 mm MM Fiber.
Note: Only connections with patch cords with PC or UPC connectors are supported.
