QSFP28 100G CWDM4 2K
QSFP28 100G CWDM4 2K
The QSFP28 100G-CWDM4-2km module is a highly integrated 4x28G transceiver focused on reach, bandwidth, density and cost for high port-count 100G systems, and client-side 100G interfaces. It is compliant with the 100G 4WDM-10 MSA, which is based on the CWDM4 MSA version 1.1. It is interoperable with CWDM4 transceivers over a 2 km reach.
Features of QSFP28 100G CWDM4 2k
Reach: 2 km via SMF
Link budget assumes the use of KR4 FEC by the host
Uncooled CWDM DFB lasers, directly modulated
Electrical interface: retimed CAUI-4 per 100G Ethernet IEEE 802.3bm Annex 83E
User controllable Transmit Input Equalization and Receiver Output Amplitude
MSA-compliant performance monitoring via I2C interface
Fiber connector: SMF LC duplex connector
Hot-pluggable
0–70°C operating temp
Power dissipation < 3.5W
RoHS6 compliant (lead-free)
Applications of QSFP28 100G CWDM4 2k
100G CWDM4 Ethernet
InfiniBand 4x EDR
Specifications of QSFP28 100G CWDM4 2k
Optical Transmitter PerformanceOptical Receiver PerformanceRecommended Operating Environment
|
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
|
|
Center Wavelength |
Ch0 |
λ0 |
- |
nm |
||
|
Ch1 |
λ1 |
- |
nm |
|||
|
Ch2 |
λ2 |
- |
nm |
|||
|
Ch3 |
λ3 |
nm |
||||
|
Bit Rate per Channel |
B |
Gb/s |
||||
|
Side Mode Suppression Ratio |
SMSR |
30 |
- |
- |
dB |
|
|
Average launch power, each lane |
- |
-6.5 |
- |
dBm |
||
|
Optical Modulation Amplitude (each lane) |
OMA |
-4.0 |
- |
dBm |
||
|
Launch power in OMA minus TDP, each lane |
OMA-TDP |
-5.0 |
- |
- |
dBm |
|
|
Transmission & dispersion penalty, each lane |
TDP |
- |
- |
dB |
||
|
RIN20 OMA |
- |
- |
- |
-130 |
dB/Hz |
|
|
Transmitter Reflectance |
- |
- |
- |
-12 |
dB |
|
|
Extinction Ratio |
ER |
- |
dB |
|||
|
Transmitter eye mask definition {X1, X2, X3, Y1, Y2, Y3} |
{0.31, 0.4, 0.45, 0.34, 0.38, 0.4} CWDM4 MSA Technical Specifications Rev 1.1 |
|||||
|
Total average launch power |
- |
- |
- |
dBm |
||
|
Average launch power of OFF transmitter, each lane |
- |
- |
- |
-30 |
dBm |
|
|
Optical return loss tolerance |
- |
- |
- |
20 |
dB |
|
Pin Descriptions of QSFP28 100G CWDM4 2k
|
Pin |
Symbol |
Name/Description |
|
1 |
GND |
Ground |
|
2 |
Tx2n |
Transmitter Inverted Data Input |
|
3 |
Tx2p |
Transmitter Non-Inverted Data Input |
|
4 |
GND |
Ground |
|
5 |
Tx4n |
Transmitter Inverted Data Input |
|
6 |
Tx4p |
Transmitter Non-Inverted Data Input |
|
7 |
GND |
Ground |
|
8 |
ModSelL |
Module Select |
|
9 |
ResetL |
Module Reset |
|
10 |
Vcc Rx |
+3.3 V Power supply receiver |
|
11 |
SCL |
2-wire serial interface clock |
|
12 |
SDA |
2-wire serial interface data |
|
13 |
GND |
Ground |
|
14 |
Rx3p |
Receiver Non-Inverted Data Output |
|
15 |
Rx3n |
Receiver Inverted Data Output |
|
16 |
GND |
Ground |
|
17 |
Rx1p |
Receiver Non-Inverted Data Output |
|
18 |
Rx1n |
Receiver Inverted Data Output |
|
19 |
GND |
Ground |
|
20 |
GND |
Ground |
|
21 |
Rx2n |
Receiver Inverted Data Output |
|
22 |
Rx2p |
Receiver Non-Inverted Data Output |
|
23 |
GND |
Ground |
|
24 |
Rx4n |
Receiver Inverted Data Output |
|
25 |
Rx4p |
Receiver Non-Inverted Data Output |
|
26 |
GND |
Ground |
|
27 |
ModPrsL |
Module Present |
|
28 |
IntL |
Interrupt |
|
29 |
Vcc Tx |
+3.3 V Power supply transmitter |
|
30 |
Vcc1 |
+3.3 V Power Supply |
|
31 |
LPMode |
Low Power Mode |
|
32 |
GND |
Ground |
|
33 |
Tx3p |
Transmitter Non-Inverted Data Input |
|
34 |
Tx3n |
Transmitter Inverted Data Input |
|
35 |
GND |
Ground |
|
36 |
Tx1p |
Transmitter Non-Inverted Data Input |
|
37 |
Tx1n |
Transmitter Inverted Data Input |
|
38 |
GND |
Ground |
Important Notice of QSFP28 100G CWDM4 2k
Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by T&S before they become applicable to any particular order or contract. In accordance with the T&S policy of continuous improvement specifications may change without notice.
The publication of information in this data sheet does not imply freedom from patent or other protective rights of T&S or others. Further details are available from any T&S sales representative.
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