The QSFP28 transceiver provides 100GBase-BX throughput up to 20km over single-mode fiber (SMF) using a wavelength of 1311nmTx/1291nmRx via an LC connector. This bidirectional unit must be used with another transceiver or network appliance of complimenting wavelengths. Digital diagnostics functions are also available via the I2C interface, as specified by the QSFP28 MSA, to allow access to real-time operating parameters. With these features, this easy to install, hot swappable transceiver is suitable to be used in various applications, such as 100G Ethernet, data center, and storage area networks applications.
产品规格：
| P/N
|
Q28-100G3129-BX20/Q28-100G2931-BX20
|
Vendor Name
|
OEM
|
| Form Factor
|
QSFP28
|
Max Data Rate
|
111.8Gbps
|
| Wavelength
|
TX1311nm/RX1291nm,TX1291nm/RX1331nm
|
Max Distance
|
20km
|
| Connector
|
Simplex LC
|
Transmitter Type
|
EML
|
| Cable Type
|
SMF
|
Receiver Type
|
PIN
|
| DDM Support
|
Yes
|
Modulation Format
|
PAM4
|
| TX Power
|
-0.2~+6.6dBm
|
Receiver Sensitivity
|
< -7.6dBm
|
| Protocols
|
802.3cu, SFF-8636 & SFF-8679,
100G OTU4, QSFP28 MSA
|
Operation Temperature
|
0 to 70°C (32 to 158°F)
|
Absolute Maximum Ratings
|
Parameter
|
symbol
|
Min.
|
Typical
|
Max.
|
Unit
|
Notes
|
|
Storage Temperature
|
TS
|
-40
|
-
|
+85
|
°C
|
|
|
Supply Voltage
|
VCC
|
-0.5
|
-
|
+4.0
|
V
|
|
|
Operating Relative Humidity
|
RH
|
-
|
-
|
+85
|
%
|
|
Recommended Operating Conditions
|
Parameter
|
Symbol
|
Min.
|
Typical
|
Max.
|
Unit
|
Notes
|
|
Operating Case Temperature
|
TC
|
0
|
-
|
+70
|
°C
|
|
|
Power Supply Voltage
|
VCC
|
3.13
|
3.3
|
3.47
|
V
|
|
|
Power Supply Current
|
ICC
|
-
|
-
|
1.3
|
A
|
|
|
Maximum Power Dissipation
|
PD
|
-
|
-
|
4.5
|
W
|
|
|
Data Rate(optical)
|
DRo
|
-
|
106.25
|
-
|
Gb/s
|
|
|
Transmission Distance
|
TD
|
-
|
-
|
20
|
km
|
Over SMF
|
Electrical Characteristics
High-Speed Signal: Compliant to CAUI-4 (IEEE 802.3cu)
Low-Speed Signal: Compliant to SFF-8679.
|
Transmitter (Module Input)
|
|
Parameter
|
Symbol
|
Min.
|
Typical
|
Max.
|
Unit
|
Notes
|
|
Input Differential Impedance
|
Rin
|
-
|
100
|
-
|
Ohm
|
|
|
Differential Data Input Amplitude
|
VIN, P-P
|
80
|
-
|
900
|
mVpp
|
|
|
Differential termination mismatch (max)
|
D-mismatch
|
-
|
-
|
10
|
%
|
|
|
DC common-mode input voltage
|
|
-0.3
|
-
|
2.8
|
V
|
|
|
Transition time (20%~80%)
|
Tr Tf
|
10
|
-
|
-
|
ps
|
|
|
LPMode, Reset and ModSelL / Tx dis
|
VIL
|
-0.3
|
-
|
0.8
|
V
|
|
|
LPMode, Reset and ModSelL / Tx dis
|
VIH
|
2.0
|
-
|
VCC+0.3
|
V
|
|
|
Receiver (Module Output)
|
|
Output Differential Impedance
|
Rout
|
-
|
100
|
-
|
Ohm
|
|
|
Differential Data Output Amplitude
|
VOUT, P-P
|
-
|
-
|
900
|
mVpp
|
|
|
Differential termination mismatch (max)
|
D-mismatch
|
-
|
-
|
10
|
%
|
|
|
Transition time, 20% to 80%
|
Tr Tf
|
12
|
-
|
|
ps
|
|
|
ModPrsL and IntL/ Rx los
|
VOL
|
0
|
-
|
0.4
|
V
|
|
|
ModPrsL and IntL/ Rx los
|
VOH
|
VCC-0.5
|
-
|
VCC+0.3
|
V
|
|
Digital Diagnostics
|
Parameter
|
Range
|
Accuracy
|
Unit
|
Calibration
|
|
Temperature
|
0 to 70
|
±3
|
oC
|
Internal
|
|
Voltage
|
0 to VCC
|
10%
|
V
|
Internal
|
|
Tx Bias Current
|
0 to 100
|
10%
|
mA
|
Internal
|
|
Tx Output Power
|
-0.2 to 6.6
|
±3
|
dBm
|
Internal
|
|
Rx Power
|
-10 to 6.6
|
±3
|
dBm
|
Internal
|
Pin Assignment
Mechanical Dimension
