100Gbps QSFP28 ER4 Lite Optical Transceiver Up to 27.952 Gbps Data rate per channel
Product Details:
Place of Origin: | Guangdong, SHENZHEN |
Brand Name: | TAKFLY |
Certification: | CE,ROHS,REACH,ISO9001,ISO14001 |
Model Number: | TKQS28-100G-ER4 |
Payment & Shipping Terms:
Minimum Order Quantity: | 1 Pices |
---|---|
Price: | US$0.01 ~ US$1200/PC |
Delivery Time: | 3-7working days |
Payment Terms: | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
Detail Information |
|||
Ratio: | 50/50 | Center Wavelength: | 1450nm |
---|---|---|---|
Insertion Loss: | ≤0.3dB | Package Weight: | 10g |
Package Type: | Bare Fiber, 900um Loose Tube, 2mm Cable | Wavelegth: | 1310nm |
Axis Alignment: | Slow Axis Or Fast Axis | Wavelength Range: | 1310nm, 1550nm |
Application: | Optical Communication Systems | Splitter Ratio: | 98/2 |
Storage Temperature: | -40~+85℃ | Port Number: | 1x2 |
Fiber Length: | 1m | Fiber: | PM Corning 980nm Fiber |
Power Handling Capacity: | High Power | ||
Highlight: | 100Gbps QSFP28 ER4 Lite,100Gbps QSFP28 ER4 Lite Optical Transceiver |
Product Description
- TKQS28-100G-ER4 is a 100Gb/s transceiver module designed for optical communication applications compliant to Ethernet 100GBASE-ER4 Lite standard. The module converts 4 input channels of 25Gb/s electrical data to 4 channels of LANWDM optical signals and then multiplexes them into a single channel for 100Gb/s optical transmission. Reversely on the receiver side, the module de-multiplexes a 100Gb/s optical input into 4 channels of LANWDM optical signals and then converts them to 4 output channels of electrical data.
- The central wavelengths of the 4 LAN WDM channels are 1295.56, 1300.05, 1304.58 and 1309.14nm as members of the LANWDM wavelength grid defined in IEEE802.3ba.The high performance cooled LAN WDM EA-DFB transmitters and high sensitivity APD receivers provide superior performance for 100Gigabit Ethernet applications up to 30km links without FEC and 40km links with FEC.
- The product is designed with form factor, optical/electrical connection and digital diagnostic interface according to the QSFP+ Multi-Source Agreement (MSA).It has been designed to meet the harshest external operating conditions including temperature, humidity and EMI interference.
Functional Description
- The transceiver module receives 4 channels of 25Gb/s electrical data, which are processed by a 4-channel Clock and Data Recovery (CDR) IC that reshapes and reduces the jitter of each electrical signal. Subsequently, EML laser driver IC converts each one of the 4 channels of electrical signals to an optical signal that is transmitted from one of the 4 cooled EML lasers which are packaged in the Transmitter Optical Sub-Assembly (TOSA). Each laser launches the optical signal in specific wavelength specified in IEEE802.3ba 100G BASE-ER4 requirements. These 4-lane optical signals will be optically multiplexed into a single fiber by a 4-to-1 optical WDMMUX. The optical output power of each channel is maintained constant by an automatic power control (APC) circuit. The transmitter output can be turned off by TX_DIS hardware signal and/or 2-wire serial interface.
- The receiver receives 4-lane LANWDM optical signals. The optical signals are de-multiplexed by a 1-to-4 optical DEMUX and each of the resulting 4 channels of optical signals is fed into one of the 4 receivers that are packaged into the Receiver Optical Sub-Assembly (ROSA). Each receiver converts the optical signal to an electrical signal. The regenerated electrical signals are retimed and de-jittered and amplified by the RX portion of the 4-channel CDR. The retimed 4-lane output electrical signals are compliant with CEI-28G-VSR interface requirements. In addition, each received optical signal is monitored by the DOM section. The monitored value is reported through the 2-wire serial interface. If one or more received optical signal is weaker than the threshold level, RX_LOS hardware alarm will be triggered.
- A single +3.3V power supply is required to power up this product. Both power supply pins VccTx and VccRx are internally connected and should be applied concurrently. As per MSA specifications the module offers 7 low speed hardware control pins (includingthe2-wireserialinterface): ModSelL, SCL, SDA, ResetL, LPMode, ModPrsL and IntL.
- Module Select (ModSelL) is an input pin. When held low by the host, this product responds to 2-wire serial communication commands. The ModSelL allows the use of this product on a single2-wireinterface bus – individual ModSelL lines must be used.
- Serial Clock (SCL) and Serial Data (SDA) are required for the 2-wire serial bus communication interface and enable the host to access the QSFP28 memory map.
- The ResetL pin enables a complete reset, returning the settings to their default state, when a low level on the ResetL pin is held for longer than the minimum pulse length. During the execution of a reset the host shall disregard all status bits until it indicates a completion of the reset interrupt. The product indicates this by posting an IntL (Interrupt) signal with the Data_Not_Ready bit negated in the memory map. Note that on power up (including hot insertion) the module should post this completion of reset interrupt without requiring a reset.
- Low Power Mode (LPMode) pin is used to set the maximum power consumption for the product in order to protect hosts that are not capable of cooling higher power modules, should such modules be accidentally inserted
- Module Present (ModPrsL) is a signal local to the host board which, in the absence of a product, is normally pulled up to the host Vcc. When the product is inserted into the connector, it completes the path to ground through a resistor on the host board and asserts the signal. ModPrsL then indicates its present by setting ModPrsL to a “Low” state.
- Interrupt (IntL) is an output pin. “Low” indicates a possible operational fault or a status critical to the host system. The host identifies the source of the interrupt using the 2-wire serial interface. The IntL pin is an open collector output and must be pulled to the Host Vcc voltage on the Host board.
Features
Ø Hot pluggable QSFP28 MSA form factor
Ø Compliant to Ethernet 100GBASE-ER4 Lite
Ø Supports 103.1Gb/s aggregate bit rate
Ø Up to 30km reach for G.652 SMF without FEC
Ø Up to 40km reach for G.652 SMF with FEC
Ø Single +3.3V power supply
Ø Operating case temperature: 0~70oC
Ø Transmitter: cooled 4x25Gb/s LAN WDM EML TOSA (1295.56, 1300.05, 1304.58, 1309.14nm)
Ø Receiver: 4x25Gb/s APD ROSA
Ø 4x25G electrical interface (OIF CEI-28G-VSR)
Ø Maximum power consumption 4.5W
Ø Duplex LC receptacle
Ø RoHS-6 compliant
Applications
Ø 100GBASE-LR4 Ethernet Links
Ø Infiniband QDR and DDR interconnects
Ø Client-side 100G Telecom connections
Transceiver Block Diagram
Figure 1. Transceiver Block Diagram
Pin Assignment and Description
Figure 2. MSA compliant Connector
Pin Definition
PIN |
Logic |
Symbol |
Name/Description |
Note s |
|
1 |
|
GND |
Ground |
1 |
|
2 |
CML-I |
Tx2n |
Transmitter Inverted Data Input |
|
|
3 |
CML-I |
Tx2p |
Transmitter Non-Inverted Data output |
|
|
4 |
|
GND |
Ground |
1 |
|
5 |
CML-I |
Tx4n |
Transmitter Inverted Data Input |
|
|
6 |
CML-I |
Tx4p |
Transmitter Non-Inverted Data output |
|
|
7 |
|
GND |
Ground |
1 |
|
8 |
LVTLL-I |
ModSelL |
Module Select |
|
|
9 |
LVTLL-I |
ResetL |
Module Reset |
|
|
10 |
|
VccRx |
+3.3V Power Supply Receiver |
2 |
|
11 |
LVCMOS-I/O |
SCL |
2-Wire Serial Interface Clock |
|
|
12 |
LVCMOS-I/O |
SDA |
2-Wire Serial Interface Data |
|
|
13 |
|
GND |
Ground |
|
|
14 |
CML-O |
Rx3p |
Receiver Non-Inverted Data Output |
|
|
15 |
CML-O |
Rx3n |
Receiver Inverted Data Output |
|
|
16 |
|
GND |
Ground |
1 |
|
17 |
CML-O |
Rx1p |
Receiver Non-Inverted Data Output |
|
|
18 |
CML-O |
Rx1n |
Receiver Inverted Data Output |
|
|
19 |
|
GND |
Ground |
1 |
|
20 |
|
GND |
Ground |
1 |
|
21 |
CML-O |
Rx2n |
Receiver Inverted Data Output |
|
|
22 |
CML-O |
Rx2p |
Receiver Non-Inverted Data Output |
|
|
23 |
|
GND |
Ground |
1 |
|
24 |
CML-O |
Rx4n |
Receiver Inverted Data Output |
1 |
|
25 |
CML-O |
Rx4p |
Receiver Non-Inverted Data Output |
|
|
26 |
|
GND |
Ground |
1 |
|
27 |
LVTTL-O |
ModPrsL |
Module Present |
|
|
28 |
LVTTL-O |
IntL |
Interrupt |
|
|
29 |
|
VccTx |
+3.3 V Power Supply transmitter |
2 |
|
30 |
|
Vcc1 |
+3.3 V Power Supply |
2 |
|
31 |
LVTTL-I |
LPMode |
Low Power Mode |
|
|
32 |
|
GND |
Ground |
1 |
|
33 |
CML-I |
Tx3p |
Transmitter Non-Inverted Data Input |
|
|
34 |
CML-I |
Tx3n |
Transmitter Inverted Data Output |
|
|
35 |
|
GND |
Ground |
1 |
|
36 |
CML-I |
Tx1p |
Transmitter Non-Inverted Data Input |
|
|
37 |
CML-I |
Tx1n |
Transmitter Inverted Data Output |
|
|
38 |
|
GND |
Ground |
1 |
Notes:
1. GND is the symbol for signal and supply (power) common for the QSFP28 module. All are common within the 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.VccRx, Vcc1 and VccTx are the receiving and transmission power suppliers and shall be applied concurrently. Recommended host board power supply filtering is shown in Figure3 below. VccRx, Vcc1 and VccTx may be internally connected within the module in any combination. The connector pins are each rated for a maximum current of 1000mA.
Recommended Power Supply Filter
Figure 3. Recommended Power Supply Filter
Absolute Maximum Ratings
It has to be noted that the operation in excess of any individual absolute maximum ratings might cause permanent damage to this module.
Parameter |
Symbol |
Min |
Max |
Units |
Notes |
Storage Temperature |
TS |
-40 |
85 |
degC |
|
Operating Case Temperature |
TOP |
0 |
70 |
degC |
|
Power Supply Voltage |
VCC |
-0.5 |
3.6 |
V |
|
Relative Humidity (non-condensation) |
RH |
0 |
85 |
% |
|
Damage Threshold, each Lane |
THd |
-3.0 |
|
dBm |
|
Recommended Operating Conditions and Power Supply Requirements
Parameter |
Symbol |
Min |
Typical |
Max |
Units |
Notes |
Operating Case Temperature |
TOP |
0 |
|
70 |
degC |
|
Power Supply Voltage |
VCC |
3.135 |
3.3 |
3.465 |
V |
|
Data Rate, each Lane |
|
|
25.78125 |
|
Gb/s |
|
Data Rate Accuracy |
|
-100 |
|
100 |
ppm |
|
Control Input Voltage High |
|
2 |
|
Vcc |
V |
|
Control Input Voltage Low |
|
0 |
|
0.8 |
V |
|
Link Distance with G.652 (without FEC) |
D1 |
|
|
30 |
km |
1 |
Link Distance with G.652 (with FEC) |
D2 |
|
|
40 |
km |
1 |
Notes:
1.Depending on actual fiber loss/km (link distance specified is for fiber insertion loss of0.4dB/km)
Electrical Characteristics
The following electrical characteristics are defined over the Recommended Operating Environment unless otherwise specified.
Parameter |
Test Poin |
Min |
Typical |
Max |
Units |
Notes |
Power Consumption |
|
|
|
4.5 |
W |
|
Supply Current |
Icc |
|
|
1.36 |
A |
|
Transmitter(each Lane) |
||||||
Overload Differential Voltage pk-pk |
TP1a |
900 |
|
|
mV |
|
Common Mode Voltage (Vcm) |
TP1 |
-350 |
|
2850 |
mV |
1 |
Differential Termination |
TP1 |
|
|
10 |
% |
At1MHz |
Differential Return Loss (SDD11) |
TP1 |
|
|
SeeCEI-28G-VSR |
dB |
|
Common Mode to Differential conversion and Differential to Common |
TP1 |
|
|
SeeCEI-28G-VSR |
dB |
|
Stressed Input Test |
TP1a |
SeeCEI-28G-VSR |
|
|
|
|
Receiver (each Lane) |
||||||
Differential Voltage, pk-pk |
TP4 |
|
|
900 |
mV |
|
Common Mode Voltage (Vcm) |
TP4 |
-350 |
|
2850 |
mV |
1 |
Common Mode Noise, RMS |
TP4 |
|
|
17.5 |
mV |
|
Differential Termination |
TP4 |
|
|
10 |
% |
At1MHz |
Differential Return Loss (SDD22) |
TP4 |
|
|
SeeCEI-28G-VSR |
dB |
|
Common Mode to Differential conversion and Differential to Common Mode |
TP4 |
|
|
SeeCEI-28G-VSR |
dB |
|
Common Mode Return Loss (SCC22) |
TP4 |
|
|
-2 |
dB |
2 |
Transition Time, 20 to 80% |
TP4 |
9.5 |
|
|
ps |
|
Vertical Eye Closure (VEC) |
TP4 |
|
|
5.5 |
dB |
|
Eye Width at 10-15probability(EW15) |
TP4 |
0.57 |
|
|
UI |
|
Eye Height at 10-15probability(EH15) |
TP4 |
228 |
|
|
mV |
|
Notes:
1.Vcm is generated by the host. Specification includes effects of ground offset voltage.
2.From 250MHz to30GHz.
Optical Characteristics
Ethernet 100GBASE-ER4Lite |
|
||||||
Parameter |
Symbol |
Min |
Typical |
Max |
Units |
Notes |
|
Lane Wavelength |
L0 |
1294.53 |
1295.56 |
1296.59 |
nm |
|
|
L1 |
1299.02 |
1300.05 |
1301.09 |
nm |
|
|
|
L2 |
1303.54 |
1304.58 |
1305.63 |
nm |
|
|
|
L3 |
1308.09 |
1309.14 |
1310.19 |
nm |
|
|
|
Transmitter |
|
||||||
SMSR |
SMSR |
30 |
|
|
dB |
|
|
Total Average Launch Power |
PT |
|
|
10.5 |
dBm |
|
|
Average Launch Power, each Lane |
PAVG |
-2.9 |
|
4.5 |
dBm |
1 |
|
OMA, each Lane |
POMA |
0.1 |
|
4.5 |
dBm |
2 |
|
Difference in Launch Power between any Two Lanes(OMA) |
Ptx, diff |
|
|
3.6 |
dB |
|
|
Launch Power in OMA minus Transmitter and Dispersion Penalty(TDP), each Lane |
|
-0.65 |
|
|
dBm |
|
|
TDP, each Lane |
TDP |
|
|
2.5 |
dB |
|
|
Extinction Ratio |
ER |
7 |
|
|
dB |
|
|
RIN20OMA |
RIN |
|
|
-130 |
dB/Hz |
|
|
Optical Return Loss Tolerance |
TOL |
|
|
20 |
dB |
|
|
Transmitter Reflectance |
RT |
|
|
-12 |
dB |
|
|
Average Launch Power OFF Transmitter, each Lane |
Poff |
|
|
-30 |
dBm |
|
|
Eye Mask{X1, X2, X3, Y1, Y2,Y3} |
|
{0.25, 0.4, 0.45, 0.25, 0.28,0.4} |
|
|
|
||
Receiver |
|
||||||
Damage Threshold, each Lane |
THd |
-3.0 |
|
|
dBm |
3 |
|
Average Receive Power, each Lane |
|
-16.9 |
|
-4.9 |
dBm |
for 30km |
|
|
|
|
|
|
|
Link Distanc |
|
Average Receive Power, each Lane |
|
-20.9 |
|
-4.9 |
dBm |
for 40kmLinkDistance |
|
Receive Power (OMA), each Lane |
|
|
|
-1.9 |
dBm |
|
|
Receiver Sensitivity (OMA),each Lane |
SEN1 |
|
|
-14.65 |
dBm |
For BER =1x10-12 |
|
Stressed Receiver Sensitivity(OMA), each Lane |
|
|
|
-12.65 |
dBm |
For BER =1x10-12 |
|
Receiver Sensitivity (OMA),each Lane |
SEN2 |
|
|
-18.65 |
dBm |
For BER =5x10-5 |
|
Stressed Receiver Sensitivity(OMA), each Lane |
|
|
|
-16.65 |
dBm |
For BER =5x10-5 |
|
Receiver reflectance |
|
|
|
-26 |
dB |
|
|
Difference in Receive Power between any Two Lanes(Average and OMA) |
Prx, diff |
|
|
3.6 |
dB |
|
|
LOS Assert |
LOSA |
|
-26 |
|
dBm |
|
|
LOS Deassert |
LOSD |
|
-24 |
|
dBm |
|
|
LOS Hysteresis |
LOSH |
0.5 |
|
|
dB |
|
|
Receiver Electrical 3 dB upper Cutoff Frequency, each Lane |
Fc |
|
|
31 |
GHz |
|
|
Conditions of Stress Receiver Sensitivity Test (Note4) |
|||||||
Vertical Eye Closure Penalty, each Lane |
|
|
1.5 |
|
dB |
|
|
Stressed Eye J2 Jitter, each Lane |
|
|
0.3 |
|
UI |
|
|
Stressed Eye J9 Jitter, each Lane |
|
|
0.47 |
|
UI |
|
Notes:
1.The minimum average launch power spec is based on ER not exceeding 9.5dB and transmitter OMA higher than0.1dBm.
2.Even if the TDP < 0.75 dB, the OMA min must exceed the minimum value specified here.
3.having this power level on one lane. The receiver does not have to operate correctly at this input power.
4.The receiver shall be able to tolerate, without damage, continuous exposure to a modulated optical input signal Vertical eye closure penalty, stressed eye J2 jitter, and stressed eye J9 jitter are test conditions for measuring stressed receiver sensitivity. They are not characteristics of the receiver.
Digital Diagnostic Functions
The following digital diagnostic characteristics are defined over the normal operating conditions unless otherwise
specified.
Parameter |
Symbol |
Min |
Max |
Units |
Notes |
Temperature monitor absolute error |
DMI_Temp |
-3 |
+3 |
degC |
Over operating temperature range |
Supply voltage monitor absolute error |
DMI_VCC |
-0.1 |
0.1 |
V |
Over full operating range |
Channel RX power monitor absolute error |
DMI_RX_Ch |
-2 |
2 |
dB |
1 |
Channel Bias current monitor |
DMI_Ibias_Ch |
-10 |
10 |
mA |
|
Channel TX power monitor absolute error |
DMI_TX_Ch |
-2 |
2 |
dB |
1 |
Notes:
Due to measurement accuracy of different single mode fibers, there could be an additional +/-1dB fluctuation, or a +/- 3 dB total accuracy.
Mechanical Dimensions
Figure 4. Mechanical Outline
ESD
Thistransceiver is specified as ESD threshold 1kV for SFI pins and 2kV for all other electrical input pins, tested per MIL-STD-883, Method 3015.4 /JESD22-A114-A (HBM).
However, normal ESD precautions are still required during the handling of this module.This transceiver is shipped in ESD protective packaging. It should be removed from the packaging and handled only in an ESD protected environment.
Laser Safety
This is a Class1 Laser Product according to EN60825-1:2014. This product complies with 21 CFR 1040.10 and 1040.11 except for deviations pursuant to Laser Notice No. 50, dated (June 24,2007).
Caution: Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.