Product Highlight
● 4 full-duplex transceiver modules (channels)
● Up to 28Gbps per channel
● Supports 40GE and 56G FDR rates
● 4x 850nm VCSEL arrays and 4x PIN photo detectors
● Internal CDR circuits on both ends
● CDR bypass supported
● Low power: <2.5W for QSFP28-100G, <1.6W for QSFP28-50G
● Hot-pluggable QSFP design
Applications
● IEEE 802.3bm 100GBASE SR4 and 40GBASE SR4
● InfiniBand FDR/EDR
● 32G Fiber Channel
Product Details
D-Net's 100G QSFP28 to 2x50G QSFP28 Active Optical Cable is a high-performance module for short-range, multi-lane data communication. It has four data lanes per direction, each capable of 112.2 Gbps bandwidth. These lanes can run at 28.05 Gbps for up to 70m with OM3 fiber or 100m with OM4 fiber.
QSFP28 to 2x QSFP28 Active Optical Cable Block Diagram
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Absolute Maximum Ratings
|
Parameter |
Symbol |
Min |
Max |
Unit |
|
|
Supply Voltage |
Vcc |
-0.3 |
3.6 |
V |
|
|
Input Voltage |
Vin |
-0.3 |
Vcc+0.3 |
V |
|
|
Storage Temperature |
Tst |
-20 |
85 |
ºC |
|
|
Case Operating Temperature |
Top |
0 |
70 |
ºC |
|
|
Humidity( non- condensing) |
Rh |
5 |
95 |
% |
|
Recommended Operating Conditions
|
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
|
Supply Voltage |
Vcc |
3. 13 |
3.3 |
3.47 |
V |
|
Operating Case temperature |
Tca |
0 |
70 |
ºC |
|
|
Data Rate Per Lane |
fd |
25.78125 |
28.05 |
Gbps |
|
|
Humidity |
Rh |
5 |
85 |
% |
|
|
Power Dissipation QSFP28 end |
Pm |
2 |
2.5 |
W |
|
|
Power Dissipation Fanout QSFP28 end |
1.3 |
1.6 |
W |
||
|
Fiber Bend Radius |
Pb |
3 |
cm |
Electrical Specifications
|
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
|
Differential input impedance |
Zin |
90 |
100 |
110 |
ohm |
|
Differential Output impedance |
Zout |
90 |
100 |
110 |
ohm |
|
Differential input voltage amplitude |
ΔVin |
300 |
1100 |
mVp-p |
|
|
Differential output voltage amplitude |
ΔVout |
500 |
800 |
mVp-p |
|
|
Skew |
Sw |
300 |
ps |
||
|
Input Logic Level High |
VIH |
2.0 |
VCC |
V |
|
|
Input Logic Level Low |
VIL |
0 |
0.8 |
V |
|
|
Output Logic Level High |
VOH |
VCC-0.5 |
VCC |
V |
|
|
Output Logic Level Low |
VOL |
0 |
0.4 |
V |
Optical Characteristics
|
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
Notes |
|
|
Transmitter |
|||||||
|
Centre Wavelength |
λc |
840 |
850 |
860 |
nm |
- |
|
|
RMS spectral width |
Δλ |
- |
- |
0.6 |
nm |
- |
|
|
Average launch power, each lane |
Pout |
-8.4 |
- |
2.4 |
dBm |
- |
|
|
Optical Modulation Amplitude (OMA),each lane |
OMA |
-6.4 |
3 |
dBm |
- |
||
|
Transmitter and dispersion eye closure( TDEC) , each lane |
TDEC |
4.3 |
dB |
||||
|
Extinction Ratio |
ER |
3 |
- |
- |
dB |
- |
|
|
Average launch power of OFF transmitter, each lane |
-30 |
dB |
- |
||||
|
Eye Mask coordinates: X1, X2, X3, Y1, Y2, Y3 |
SPECIFICATION VALUES {0.3,0.38,0.45,0.35,0.41.0.5} |
Hit Ratio = 5x10-5 |
|||||
|
Receiver |
|||||||
|
Centre Wavelength |
λc |
840 |
850 |
860 |
nm |
- |
|
|
Stressed receiver sensitivity in OMA |
-5.2 |
dBm |
1 |
||||
|
Maximum Average power at receiver , each lane |
2.4 |
dBm |
- |
||||
|
Minimium Atveragel power at receiver , each lane |
- 10.3 |
dBm |
|||||
|
Receiver Reflectance |
- 12 |
dB |
- |
||||
|
LOS Assert |
-30 |
dBm |
- |
||||
|
LOS De-Assert – OMA |
-7.5 |
dBm |
- |
||||
|
LOS Hysteresis |
0.5 |
dB |
- |
||||
Mechanical Dimensions
Ordering Information
|
Part Number |
Product Description |
|
QS FP 2 8- 2x5 0 G-AOCXXM |
QSFP2 8 to 2 xQSFP2 8 , 1 0 0 GBASE- SR4 , Active Optical Cable 7 0 m on OM3 Multimode Fiber ( MMF) and1 0 0 m on OM4 Low power version |
FAQ
1. What is the standard for QSFP28 ?
A: QSFP28 is a high-speed transceiver that supports up to 100 Gbps data rates. It's commonly used in data centers, networking, and telecom systems.
2. What is the capacity for QSFP28 ?
A: QSFP28 supports Ethernet standards from 25GbE to 100GbE. Each of its four lanes can handle up to 25 Gbps, making a 100GbE QSFP28 module capable of 100 Gbps total.
3. What does AOC cable stand for ?
A: AOC stands for Active Optical Cable.
