Product Features：
l Lane signaling rate 53.125GBd with PAM4；
l High speed I/O electrical interface；
l QSFP28 MSA package with simplex LC connector；
l Compliant to 100G Lamda MSA 100G-ER1-30 Optical Specifications；
l Reaches up to 30km on SMF；
l Support KP4 FEC inside the module and KP4 FEC shutdown；
l Single 3.3V power supply；
l Maximum power dissipation < 4.5W；
l Compliant to RoHS2.0；
l Two Wire Serial Interface with Digital Diagnostic Monitoring；
l Class 1 Laser；
l Case operating temperature:
Commercial: 0°C to +70°C
I. Pin Diagram
Figure1 Top Side and Bottom Side of QSFP28
II. Pin Descriptions
Pin | Symbol | Description | Notes |
1 | GND | Ground | 1 |
2 | Tx2n | Transmitter Inverted Data Input | |
3 | Tx2p | Transmitter Non-Inverted Data Input | |
4 | GND | Ground | 1 |
5 | Tx4n | Transmitter Inverted Data Input | |
6 | Tx4p | Transmitter Non-Inverted Data Input | |
7 | GND | Ground | 1 |
8 | ModSelL | Module Select | |
9 | ResetL | Module Reset | |
10 | Vcc Rx | +3.3V Power Supply Receiver | |
11 | SCL | 2-wire serial interface clock | |
12 | SDA | 2-wire serial interface data | |
13 | GND | Ground | 1 |
14 | Rx3p | Receiver Non-Inverted Data Output | |
15 | Rx3n | Receiver Inverted Data Output | |
16 | GND | Ground | 1 |
17 | Rx1p | Receiver Non-Inverted Data Output | |
18 | Rx1n | Receiver Inverted Data Output | |
19 | GND | Ground | 1 |
20 | GND | Ground | 1 |
21 | Rx2n | Receiver Inverted Data Output | |
22 | Rx2p | Receiver Non-Inverted Data Output | |
23 | GND | Ground | 1 |
24 | Rx4n | Receiver Non-Inverted Data Output | |
25 | Rx4p | Receiver Inverted Data Output | |
26 | GND | Ground | 1 |
27 | Mod PrsL | Module Present | |
28 | IntL | Interrupt | |
29 | Vcc Tx | +3.3V Power supply transmitter | |
30 | Vcc1 | +3.3V Power supply | |
31 | LPMode | Low Power Mode | |
32 | GND | Ground | 1 |
33 | Tx3p | Transmitter Non-Inverted Data Input | |
34 | Tx3n | Transmitter Inverted Data Input | |
35 | GND | Ground | 1 |
36 | Tx1p | Transmitter Non-Inverted Data Input | |
37 | Tx1n | Transmitter Inverted Data Input | |
38 | GND | Ground | 1 |
Notes:
1. GND is the symbol for signal and supply (power) common for QSFP28 modules. All are common within the QSFP28 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 suppliers and shall be applied concurrently. Vcc Rx, Vcc1 and Vcc Tx may be internally connected within the QSFP28 transceiver module in any combination. The connector pins are each rated for a maximum current of 1000mA.
3.Timing for SCL, SDA and ModSelL shall comply with the common management interface document SFF-8636 and SFF-8679.
4.The QSFP28 module must support hardware reset operation.
5.Two Multi-Purpose PIN for supporting Tx_DIS and Rx_LOS function in the 100G QSFP28 module.The IIC interface must function normally when the QSFP28 module is in the LP mode.
III. Absolute Maximum Ratings
Parameter | Symbol | Min. | Typ. | Max. | Unit | Ref. |
Storage Temperature | TS | -40 | 85 | ºC | ||
Storage Ambient Humidity | HA | 5 | 85 | % | ||
Maximum Supply Voltage | VCC | 0 | 3.6 | V | ||
Low Speed Signal Voltage Range | -0.3 | 4.0 | V | |||
Receiver Damage Threshold | +5.5 | dBm | ||||
ESD Sensitivity | ±500V For RF ±2000V For Others | V |
IV. Recommended Operating Conditions
Parameter | Symbol | Min. | Typ. | Max. | Unit | Ref. |
Data Rate(optical) | DRO | 103.125 | 106.25 | Gbp/s | ||
Data Rate(Electrical) | DRE | 26.5625 | Gbp/s | |||
Case Operating Temperature | Tcase | 0 | - | 70 | ºC | |
Relative Humidity | HA | 5 | 85 | % | ||
Power Supply Voltage | Vcc | 3.135 | 3.3 | 3.465 | V | |
Power Dissipation | PD | 4.5 | W | |||
Transmission Distance | TD | - | 30 | km |
V. Optical Characteristics
Parameter | Symbol | Min. | Typ. | Max. | Unit | Ref. |
Transmitter(per lane) | ||||||
Data Rate | DRO | 103.125 | 106.25 | Gbp/s | ||
Data Rate Variation | -100 | 100 | ppm | |||
Average Launch Power per lane | TXPx | 0 | 5.6 | dBm | 1,2 | |
Transmitter and Dispersion eye closure |
TDECQ | 3.9 | dBm | |||
Transmit OMA per Lane | TxOMA | 3 | 6.4 | dBm | ||
1.6+TDECQ | 6.4 | |||||
Extinction Ratio | ER | 5 | ||||
Side mode Suppression ratio | SMSR | 30 | dB | |||
Center Wavelength | λC | 1304.06 | 1304.58 | 1305.1 | nm | |
1308.61 | 1309.14 | 1309.66 | ||||
Relative Intensity Noise |
RIN |
-136 |
dB/Hz | |||
Optical return loss tolerance |
15.6 |
dB | ||||
Transmitter reflectance |
-26 |
dB | 3 | |||
Transmitter OFF Output Power | POff | -30 | dBm | |||
Transmitter eye mask definition {X1,X2,X3,Y1,Y2,Y3} | {0.25,0.4,0.45,0.25,0.28,0.4} | 1 | ||||
Receiver(per lane) | ||||||
Input Optical Wavelength | λIN | 1304.06 | 1304.58 | 1305.1 | nm | |
1308.61 | 1309.14 | 1309.66 | ||||
Rx Sensitivity(OMA) per lane | RSENS | -12.5 | dBm | |||
-13.9+TECQ | ||||||
Receiver power(OMA) per lane | ROMA | -2.6 | dBm | 6 | ||
Damage threshold | Rdam | -2.4 | dBm | 4 | ||
Average receiver power |
Rpow | -14.7 | -3.4 | dBm | 5 | |
Stressed Sensitivity per lane | SRS | -10 | dBm | 7 | ||
Receiver Reflectance | Rfl | -26 | dBm | |||
Loss of Signal Assert | PA | -26 | -18 | dBm | ||
Loss of Signal De-assert | PD | -16 | dBm | |||
LOS Hysteresis | PD - PA | 0.5 | dB | |||
Conditions of stressed receiver sensitivity test: | ||||||
Stressed eye closure for PAM4 (SECQ), |
3.9 |
dB | 7 | |||
Notes:
1. As the total average launch power limit has to be met, not all of the lanes can operate at the maximum average launch power ,each lane.
2. Average launch power, each lane(min) is informative and not the principal indicator of signal strength. A transmitter with launch power below this value can not be compliant: however, a value above this does not ensure compliance.
3. Transmitter reflectance is defined looking into the transmitter.
4. The receiver shall be able to tolerate, without damage, continuous exposure to an optical input signal having this average power level.
5. Average receiver power, each lane(min) is informative and not the principal indicator of signal strength. A received power below this value cannot be compliant; however, a value above this does not ensure compliance.
6. Measured with conformance test signal at TP3 for the BER specified in 《100G-FR and 100G-LR1 Technical Specifications Rev 2.0》
7. These test conditions are for measuring stressed receiver sensitivity. They are not characteristics of the receiver.
VI. Electrical Characteristics
Parameter | Symbol | Min. | Type | Max. | Unit | Ref. |
Transmitter | ||||||
Input Differential Impedance | Rin | 100 | Ohm | |||
Differential data input voltage per lane | Vin,pp,diff | - | - | 900 | mV | |
Differential termination mismatch | - | - | - | 10 | % | |
LPMode, Reset and ModSelL
| - | -0.3 | - | 0.8 | V | |
- | 2.0 | - | Vcc+0.3 | V | ||
Receiver | ||||||
Output Differential Impedance | Rout | 100 | Ohm | |||
Differential output voltage | Vout,pp | - | - | 900 | mV | |
Differential termination mismatch | - | - | 10 | % | ||
ModPrsL and IntL | - | 0 | - | 0.4 | V | |
- | VCC-0.5 | - | Vcc+0.3 | V | ||
VII. Host Board Power Supply Filtering
Figure2 Recommended host board power supply filtering
VIII. Mechanical Specifications (Unit: mm)
Figure3 100G LR1 BIDI QSFP28 Mechanical Dimensions
Product Features
l Lane signaling rate 53.125GBd with PAM4
l High speed I/O electrical interface
l QSFP28 MSA package with simplex LC connector
l Compliant to 100G Lamda MSA 100G-ER1-30 Optical Specifications
l Reaches up to 30km on SMF
l Support KP4 FEC inside the module and KP4 FEC shutdown
l Single 3.3V power supply
l Maximum power dissipation < 4.5W
l Compliant to RoHS2.0
l Two Wire Serial Interface with Digital Diagnostic Monitoring
l Class 1 Laser
l Case operating temperature: Commercial: 0°C to +70°C
Applications | Compliance |
100G Gigabit Ethernet | QSFP28 MSA |
Data Center Interconnect | ROHS |
Ordering Information
Part No. | Bit Rate (Gbps) | Distance | Fiber Type | DDMI | Connector | Temp |
FSBQLBXX-K30C | 53.125 | 30km | SMF | YES | LC | 0℃~+70℃ |