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QSFP+/40G-SR4
40 Gb/s QSFP+ SR4 Optical Transceiver
1 Features
l Hot pluggable QSFP+ MSA form factor
l Compliant to IEEE 802.3ba 40GBASE-SR4
l Up to 100m on OM3 MMF and 150m on OM4 MMF
l Single +3.3V power supply
l Operating case temperature: 0~70°C
l Maximum power consumption 1.5W
l Single 1x12 MPO receptacle
l RoHS-6 compliant
2 Applications
l 40GBASE-SR4 Ethernet Links
l Breakout to 10GBASE-SR Ethernet
l Datacenter and Enterprise networking
3 General Description
This product is a 40Gb/s transceiver module designed for optical communication applications compliant to 40GBASE-SR4 of the IEEE 802.3ba standard.
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.
4 Pin Function Definition
PIN | Logic | Symbol | Name/Description |
1 | GND | Ground | |
2 | CML-I | Tx2n | Transmitter Inverted Data Input |
3 | CML-I | Tx2p | Transmitter Non-Inverted Data output |
4 | GND | Ground | |
5 | CML-I | Tx4n | Transmitter Inverted Data Input |
6 | CML-I | Tx4p | Transmitter Non-Inverted Data output |
7 | GND | Ground | |
8 | LVTLL-I | ModSelL | Module Select |
9 | LVTLL-I | ResetL | Module Reset | ||
10 | VccRx | +3.3V Power Supply Receiver | |||
11 | LVCMOSS-I/O | SCL | 2-Wire Serial Interface Clock | ||
12 | LVCMOSS-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 Input | ||
16 | GND | Ground | |||
17 | CML-O | Rx1p | Receiver Non-Inverted Data output | ||
18 | CML-O | Rx1n | Receiver Inverted Data Input | ||
19 | GND | Ground | |||
20 | GND | Ground | |||
21 | CML-O | Rx2n | Receiver Inverted Data Input | ||
22 | CML-O | Rx2p | Receiver Non-Inverted Data output | ||
23 | GND | Ground | |||
24 | CML-O | Rx4n | Receiver Inverted Data Input | ||
25 | CML-O | Rx4p | Receiver Non-Inverted Data output | ||
26 | GND | Ground | |||
27 | LVTLL-O | ModPrsL | Module Present | ||
28 | LVTLL-O | IntL | Interrupt | ||
29 | VccTx | +3.3V Power Supply transmitter | |||
30 | Vccl | +3.3V Power Supply | |||
31 | LVTLL-I | LPMode | Low Power Mode | ||
32 | GND | Ground | |||
33 | CML-I | Tx3p | Transmitter Non-Inverted Data output | ||
34 | CML-I | Tx3n | Transmitter Inverted Data Input | ||
35 | GND | Ground | |||
36 | CML-I | Tx1p | Transmitter Non-Inverted Data output | ||
37 | CML-I | Tx1n | Transmitter Inverted Data Input | ||
38 | GND | Ground | |||
5 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. | Unit | ||||||||
Storage Temperature | Tstg | -20 | +85 | °C | ||||||||
Operating Case Temperature | TOP | 0 | 70 | °C | ||||||||
Operating relative humidity | RH | 0 | 85 | % | ||||||||
(Non- condensing) | ||||||||||||
Supply Voltage | Vcc | -0.5 | 3.6 | V | ||||||||
6 Recommended Operating Conditions and Power Supply Requirements
Parameter | Symbol | Min. | Typ. | Max. | Unit | ||||||||
Operating | Case | Tc | 0 | +70 | ℃ | ||||||||
Temperature | |||||||||||||
Power Supply Voltage | Vcc | +3.135 | +3.465 | V | |||||||||
Data Rate,each Lane | 10.3125 | Gb/s | |||||||||||
Power Consumption | P | 1.5 | W | ||||||||||
Supply Current | ICC | 455 | mA | ||||||||||
Link Distance | - | - | 150 | m | |||||||||
7 Optical Characteristics | |||||||||||||||||||||
Parameter | Symbol | Min. | Typ. | Max. | Unit | Note | |||||||||||||||
Transmitter | |||||||||||||||||||||
Center Wavelength | 840 | 860 | nm | ||||||||||||||||||
Average Launch Power, each Lane | PAVG | -8.2 | 2.4 | dBm | |||||||||||||||||
Extinction Ratio | ER | 3 | dB | ||||||||||||||||||
Average Launch Power OFF | Poff | -30 | dBm | ||||||||||||||||||
Transmitter, each Lane | |||||||||||||||||||||
Receiver | |||||||||||||||||||||
Center Wavelength | λC | 840 | 860 | nm | |||||||||||||||||
Average Receive Power, each | -9.5 | 2.4 | dBm | ||||||||||||||||||
Lane | |||||||||||||||||||||
Receiver Sensitivity, each | SEN | -9.5 | dBm | ||||||||||||||||||
Lane(OMA) | |||||||||||||||||||||
LOS Assert | LOSA | -30 | dBm | ||||||||||||||||||
LOS Deassert | LOSD | -15 | dBm | ||||||||||||||||||
LOS Hysteresis | LOSH | 0.5 | dB | ||||||||||||||||||
8 Electrical Characteristics
Parameter | Symbol | Min. | Max. | Unit | ||
Transmitter | ||||||
Differential Data Input Amplitude | VIN,P-P | 200 | 1600 | mVpp | ||
Differential Input Impedance | 80 | 120 | Ω | |||||||||||||
Normal Operation | VIL | -0.3 | 0.8 | V | ||||||||||||
Tx_Disable | ||||||||||||||||
Laser Disable | VIH | 2.0 | VCC+0.3 | V | ||||||||||||
Receiver | ||||||||||||||||
Differential Data Output Amplitude | VOUT,P-P | 320 | 950 | mVpp | ||||||||||||
Differential Output Impedance | 80 | 120 | Ω | |||||||||||||
Output Rise/Fall Time, 20%~80% | TR | - | 100 | ps | ||||||||||||
Normal Operation | VOL | - | 0.4 | V | ||||||||||||
Rx_LOS | ||||||||||||||||
Lose Signal | VOH | VCC-0.5 | - | V | ||||||||||||
9 Digital Diagnostic Functions
The following digital diagnostic characteristics are defined over the normal operating conditions unless otherwise specified
Parameter | Symbol | Min. | Max. | Unit | Note | ||||||||||
Temperature monitor | DMI_Temp | -3 | +3 | ℃ | Over operating | ||||||||||
absolute error | erature range | ||||||||||||||
Supply voltage monitor | DMI _VCC | -0.1 | 0.1 | V | Over full operating | ||||||||||
absolute erro | range | ||||||||||||||
Channel RX power monitor | DMI_RX_Ch | -3 | 3 | dB | |||||||||||
absolute error | |||||||||||||||
Channel Bias current | DMI_Ibias_Ch | -10% | 10% | mA | |||||||||||
monitor | |||||||||||||||
Channel TX power monitor | DMI_TX_Ch | -3 | 3 | dB | |||||||||||
absolute error | |||||||||||||||
10 Mechanical Dimensions
11 | Ordering information | ||||||||||
Part Number | Operating Case Temperature | RoHS Compliant | |||||||||
QSFP+/40G-SR4 | 0 ~ 70 °C | RoHS-6 | |||||||||
12 | Document History | ||||||||||
Version | Change Description | Changed by | Date | ||||||||
VER A | Initial Release | Wang | 11/15/2017 | ||||||||
