40Gb/s QSFP+ SR4 Transceiver
Product Features
l High Channel Capacity: 40Gbps per module
l Up to 11.1Gbps Data rate per channel
l Maximum link length of 100m links on OM3 multimode fiber
l Or 150m on OM4 multimode fiber
l High Reliability 850nm VCSEL technology`
l Electrically hot-pluggable
l Compliant with QSFP+ MSA
l Case operating temperature range:0°C to 70°C
l Power dissipation < 1.5 W
Applications
l 40G Ethernet
l Infiniband QDR
l Fiber channel
Standard
l Compliant to IEEE 802.3ba
l Compliant to SFF-8436
l RoHS Compliant.
General DeSCRJPTion
HTFuture’s QSFP+ SR4 transceiver modules are designed for use in 40 Gigabit per second links over multimode fiber. They are compliant with the QSFP+ MSA and IEEE 802.3ba 40GBASE-SR4.The optical transmitter portion of the transceiver incorporates a 4-channel VCSEL (Vertical Cavity Surface Emitting Laser) array, a 4-channel input buffer and laser driver, control and bias blocks. The optical receiver portion of the transceiver incorporates a 4-channel PIN photodiode array, a 4-channel TIA array, a 4 channel output buffer, control blocks.
Absolute Maximum Ratings
|
Parameter |
Symbol |
Min. |
Typ. |
Max. |
Unit |
Note |
|
Storage Temperature |
Ts |
-40 |
- |
85 |
oC |
|
|
Storage Ambient Humidity |
HA |
5 |
- |
95 |
% |
|
|
Operating Relative Humidity |
RH |
- |
- |
85 |
% |
|
|
Power Supply Voltage |
VCC |
-0.3 |
- |
4 |
V |
|
|
Signal Input Voltage |
|
Vcc-0.3 |
- |
Vcc+0.3 |
V |
|
|
Damage threshold |
|
3.4 |
|
|
dBm |
|
Recommended Operating Conditions
|
Parameter |
Symbol |
Min. |
Typ. |
Max. |
Unit |
Note |
|
Case Operating Temperature |
Tcase |
0 |
- |
70 |
oC |
Without air flow |
|
Power Supply Voltage |
VCC |
3.14 |
3.3 |
3.47 |
V |
|
|
Power Supply Current |
ICC |
- |
|
350 |
mA |
|
|
Data Rate |
BR |
|
10.3125 |
|
Gbps |
Each channel |
|
Transmission Distance |
TD |
|
- |
100 |
m |
OM3 MMF |
|
|
|
|
|
150 |
m |
OM4 MMF |
Optical Characteristics
|
Parameter |
Symbol |
Min |
Typ |
Max |
Unit |
NOTE |
|
Transmitter |
|
|
|
|
|
|
|
Center Wavelength |
λ0 |
840 |
|
860 |
nm |
|
|
Average Launch Power each lane |
|
-7.6 |
|
-1 |
dBm |
|
|
Spectral Width (RMS) |
σ |
|
|
0.65 |
nm |
|
|
Optical Extinction Ratio |
ER |
3 |
|
|
dB |
|
|
Average launch Power off each lane |
Poff |
|
|
-30 |
dBm |
|
|
Transmitter and Dispersion Penalty each lane |
TDP |
|
|
3.5 |
dB |
|
|
Optical Return Loss Tolerance |
ORL |
|
|
12 |
dB |
|
|
Output Eye Mask |
Compliant with IEEE 802.3ba |
|
||||
|
Receiver |
|
|
|
|
|
|
|
Receiver Wavelength |
Λin |
840 |
|
860 |
nm |
|
|
Rx Sensitivity per lane |
RSENS |
|
|
-9.5 |
dBm |
1 |
|
Input Saturation Power (Overload) |
Psat |
2.4 |
|
|
dBm |
|
|
Receiver Reflectance |
Rr |
|
|
-12 |
dB |
|
|
LOS De-Assert |
LOSD |
|
|
-12 |
dBm |
|
|
LOS Assert |
LOSA |
-30 |
|
|
dBm |
|
|
LOS Hysteresis |
|
0.5 |
|
|
dBm |
|
898995850
