FEATURES:
400G QSFP112 SR4 LPO Transceiver
Absolute Maximum Ratings
Parameter |
Symbol |
Min |
Max |
Unit |
Storage Temperature |
TS |
-40 |
85 |
ºC |
Power Supply Voltage |
VCC |
-0.4 |
3.6 | V |
Relative Humidity (non-condensing) |
RH |
5 |
85 |
% |
Recommended Operating Conditions
Parameter |
Symbol |
Min. |
Typical |
Max. |
Unit |
Notes |
Operating Case Temperature |
TOPR |
0 |
70 | ℃ | ||
Power Supply Voltage |
VCC |
3.135 |
3.3 |
3.465 |
V | |
Maximum Power Dissipation(400G) |
PD |
2.8 | W | |||
Signaling Rate per Lane |
SRL |
53.125 |
GBd |
PAM4 |
Transmitter Optical Specifications
Parameter |
Symbol |
Min. |
Typical |
Max. |
Unit |
Wavelength |
λC |
844 | 850 |
863 |
nm |
RMS spectral width |
∆λrms |
0.6 |
nm |
||
Average Launch Power, each lane |
AOPL |
-1.0 |
3.0 |
dBm |
|
Average Launch Power of OFF Transmitter, each lane |
TOFF |
-30 |
dBm |
||
Extinction Ratio, each lane |
ER |
3 |
dB |
||
Optical Return Loss Tolerance |
ORL |
14 |
dB |
||
Transmitter Reflectance |
TR |
-26 |
dB |
Receiver Optical Specifications
Parameter |
Symbol |
Min. |
Typical |
Max. |
Unit |
Wavelength |
λC |
842 |
850 | 863 |
nm |
Damage Threshold, average optical power, each lane |
AOPD |
5 |
dBm |
||
Average Receive Power, each lane |
AOPR |
-6.3 |
4.0 |
dBm |
|
Receive Power (OMAouter), each lane |
OMAR |
3.5 |
dBm |
||
Receiver Reflectance |
RR |
-20 |
dB |
Pin Definitions
Figure 1 –Module Pad Layout
Notes:
1.GND is the symbol for signal and supply (power) common for the QSFP56 module. All are common within the QSFP56 module and all module voltages are referenced to this potential unless otherwise noted. Connect these directly to the host board signal-common ground plane.
2.Vcc Rx, Vcc1 and Vcc Tx are the receiver and transmitter power supplies and shall be applied concurrently. Recommended host board power supply filtering is shown in below Figures. Vcc Rx Vcc1 and Vcc Tx may be internally connected within the QSFP56 Module in any combination. The connector pins are each rated for a maximum current of 500 mA.
Figure 2. Recommended Power Supply Filter
Optical Interface and Mechanical Dimensions
Figure 3 – Optical Receptacle and Channel Orientation for MPO connector
Figure 4 – Mechanical Dimensions.
Ordering Information
Part Number |
Description |
QS112-400G-LPO-SR4 |
400Gb/s, QSFP112, MPO-12APC, 850nm MMF, SR4, LPO |
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