Alpha Bridge SFP AQSFP-40G-PLR4
Features
- 4 Parallel lanes design.
- Up to 2Gbps data rate per channel.
- Aggregate Bandwidth of up to 0G.
- QSFP+ MSA compliant.
- Up to 10km transmission on single mode fiber (SMF).
- Maximum power consumption 5W.
- Single +3.3V power supply.
- Operating case temperature: 0~70℃.
- RoHS-6 Compliant.
Applications
- 40G Ethernet.
- InfiniBand QDR and DDR & SDR.
- Datacenter and Enterprise networking.
Absolute Maximum Ratings SFP AQSFP-40G-PLR4
Parameter | Symbol | Min. | Max. | Units | Note |
Storage Temperature | Tc | -40 | 85 | °C | |
Supply Voltage | Vcc | -0.5 | 3.6 | V | |
Operating Case Temperature | Top | 0 | 70 | ℃ | |
Relative Humidity (non- condensation) | RH | 5 | 85 | % | |
Damage Threshold, each Lane | THd | 3.3 | dBm |
Recommended Operating Conditions SFP AQSFP-40G-PLR4
Parameter | Symbol | Min. | Typ. | Max. | Units | Notes |
Operating Case Temperature | TOP | 0 | 70 | ℃ | ||
Power Supply Voltage | VCC | 3.315 | 3.3 | 3.465 | V | |
Data Rate, each Lane | 10.3125 | 11.2 | Gb/s | |||
Control Input Voltage High | 2 | Vcc | V | |||
Control Input Voltage Low | 0 | 0.8 | V | |||
Link Distance with G.652 | D | 0.002 | 10 | km |
Diagnostics SFP AQSFP-40G-PLR4
Parameter | Symbol | Accuracy. | Unites | Notes |
Temperature monitor absolute error | DMI_Temp | ± 3 | ℃ | Over operating temperature range |
Supply voltage monitor absolute error | DMI _VCC | ± 0.1 | V | Over full operating range |
Channel RX power monitor absolute error | DMI_RX_Ch | ± 2 | dB | 1 |
Channel Bias current monitor | DMI_Ibias_Ch | ± 10% | mA | |
Channel TX power monitor absolute error | DMI_TX_Ch | ± 2 | dB | 1 |
Transmitter Electro-optical Characteristics SFP AQSFP-40G-PLR4
Parameter | Symbol | Min. | Typ. | Max. | Units | Note |
Data Rate | --- | 10.3125 | 11.3 | Gbps | ||
Power Consumption | 1200 | 1500 | mW | |||
Output Optical Power | Pout | -3 | --- | 3 | dBm | |
Center Wavelength | lC | 1530 | 1565 | nm | ||
Relative Intensity Noise | RIN | --- | --- | -128 | dB/Hz | |
Side Mode Suppression Ratio | SMSR | 30 | dB | |||
Optical spectrum width (-20dB) | 1 | nm | ||||
Launched power | po | -3 | 3 | dBm | ||
Launched power in OMA | -2.1 | --- | dBm | |||
Extinction Ratio | ER | -6 | --- | dB | ||
Transmitter Dispersion Penalty | TDP | --- | --- | 2 | dB | 1 |
Average launch power of OFF transmitter | Poff | -30 | dBm | |||
Optical Return Loss Tolerance | RL | 21 | --- | dB | ||
Single Ended Output Voltage Tolerance | -0.3 | --- | 4 | V | ||
C common mode voltage tolerance | 15 | --- | --- | mV | ||
TX Input Diff Voltage | VI | 180 | 700 | mV | ||
TX Fault | VoL | -0.3 | 0.4 | V | ||
2.0 | Vcc+0.3 | V | ||||
TX Disable | VoL | vee | Vee+0.8 | V | ||
2 | Vcc | V | ||||
Data Dependent Input Jitter | DDJ | 0.1 | UI | |||
Data Input Total Jitter | TJ | 0.28 | UI |
Note: Path penalty is intended as the power penalty of the interface between back-to-back and the maximum applied dispersion.
Receiver Electro-optical Characteristics SFP AQSFP-40G-PLR4
Parameter | Symbol | Min. | Typ. | Max. | Units | Note | |
Difference in Launch Power between any two lanes (OMA) | Ptx,diff | 6.5 | dB | ||||
Launch Power in OMA minus Transmitter and Dispersion Penalty | -5.5 | dBm | |||||
(TDP), each Lane | |||||||
TDP, each Lane | TDP | 3.2 | dB | ||||
Extinction Ratio | ER | 3.5 | dB | ||||
Relative Intensity Noise | RIN | -128 | dB/Hz | ||||
Optical Return Loss Tolerance | TOL | 12 | dB | ||||
Transmitter Reflectance | RT | -12 | dB | ||||
Average Launch Power OFF | -30 | dBm | |||||
Transmitter Eye Mask Definition {X1,X2,X3,Y1,Y2,Y3} | {0.25,0.4,0.45,0.25,0.28,0.4} | ||||||
Average Launch Power OFF | Poff | -30 | dBm |
Note 1: Power-on initialization time is the time from when the power supply voltages reach and remain above the minimum recommended operating supply voltages to the time when the module is fully functional.
Note 2: The single-ended input voltage tolerance is the allowable range of the instantaneous input signals.
Note 3: The maximum transmitter average optical power of 1.5 dBm is well within the guard band of receiver overload specifications of commercially available 10GBASE-LR SFP+ transceivers offered.
Note 4: Even if the TDP < 1 dB, the OMA min must exceed the minimum value specified here.
REOC-PLR4
Parameter | Symbol | Min. | Typ. | Max. | Units | Note |
Operating Center Wavelength | lC | 1250 | --- | -14.4 | dBm | 1 |
Receiver Overload | -1 | |||||
Receiver Sensitivity | RSEN | |||||
Receiver Sensitivity in OMA | Psens | --- | --- | -12.6 | dBm | 2 |
Receiver Reflectance | Rf | |||||
Stressed receiver Sensitivity in OMA | --- | --- | -10.3 | dBm | 2 | |
Vertical eye closure penalty | 2.2 | dB | 3 | |||
LOS Assert | LOSA | -30 | UIp-p | 2 | ||
LOS De-assert | LOSD | --- | --- | 0.5 | dBm | 1 |
LOS Hysteresis | 0.5 | 1.5 | dBm | |||
Stressed eye Jitter | 0.3 | -12 | dB | |||
Receiver power damage | 12 | GHz | ||||
Receive electrical 3dB upper cutoff frequency | ||||||
Single Ended Output Voltage Tolerance | -3.0 | --- | --- | dBm | ||
RX Output Diff Voltage | Vo | 300 | 850 | mV | ||
RX Output Rise and Fall Time | Tr/Tf | 30 | ps | 20% to 80% | ||
Total Jitter | TJ | 0.7 | UI | |||
Deterministic Jitter | DJ | 0.42 | UI |
Note: The receiver shall be able to tolerate, without damage, continuous exposure to a modulated optical input signal having this power level on one lane. The receiver does not have to operate correctly at this input power.
Block Diagram of Transceiver
- This product is a parallel 40Gb/s Quad Small Form-factor Pluggable (QSFP+) optical module. It provides increased port density and total system cost savings. The QSFP+ full-duplex optical module offers 4 independent transmit and receive channels, each capable of 10Gb/s operation for an aggregate data rate of 40Gb/s on 10km of single mode fiber.
- An optical fiber ribbon cable with an MTP/MPO connector can be plugged into the QSFP+ module receptacle. Proper alignment is ensured by the guide pins inside the receptacle. The cable usually cannot be twisted for proper channel to channel alignment. Electrical connection is achieved through a z-pluggable 38-pin connector per MSA requirement.
- The module operates with single +3.3V power supply. LVCMOS/LVTTL global control signals, such as Module Present, Reset, Interrupt and Low Power Mode, are available with the modules. A 2-wire serial interface is available to send and receive more complex control signals, and to receive digital diagnostic information.
- Individual channels can be addressed and unused channels can be shut down for maximum design flexibility.
- 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. The module can be managed through the I2C two-wire serial interface.
Functional Description
- This product is a QSFP+ parallel single mode optical transceiver with an MTP/MPO fiber ribbon connector. The transmitter module accepts electrical input signals compatible with Common Mode Logic (CML) levels. All input data signals are differential and internally terminated. The receiver module converts parallel optical input signals via a photo detector array into parallel electrical output signals. The receiver module outputs electrical signals are also voltage compatible with Common Mode Logic (CML) levels. All data signals are differential and support a data rates up to 10.3Gb/s per channel. Above figure shows the functional block diagram of this roduct.
- A single +3.3V power supply is required to power up the module. Both power supply pins VccTx and VccRx are internally connected and should be applied concurrently. Per MSA the module offers 7 low speed hardware control pins (including the 2-wire serial interface): ModSelL, SCL, SDA, ResetL, LPMode, ModPrsL and IntL.
- Module Select (ModSelL) is an input pin. When held low by the host, the module responds to 2-wire serial communication commands. The ModSelL allows the use of multiple QSFP+ modules on a single 2-wire interface bus – individual ModSelL lines for each QSFP+ module 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 QSFP+ memory map.
- The ResetL pin enables a complete module reset, returning module 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 the module indicates a completion of the reset interrupt. The module 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 module 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 module, is normally pulled up to the host Vcc. When a module 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 a module is present by setting ModPrsL to a “Low” state.
- Interrupt (IntL) is an output pin. Low indicates a possible module 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.
Pin Description SFP AQSFP-40G-PLR4
Pin | Logic | symbol | Name/description | Unites |
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 | ModSeIL | 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 | GNC | 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 | +3.3V Power Supply transmitter | 2 | |
30 | Vcc1 | +3.3V 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 |
- Note: GND is the symbol for signal and supply (power) common for QSFP All are common within the QSFP module and all module voltages are referenced to this potential unless otherwise noted. Connect these directly to the host board signal common ground plane.
- VccRx, Vcc1 and VccTx are the receiver and transmitter power suppliers and shall be applied Recommended host board power supply filtering is shown below. Vcc Rx, Vcc1 and Vcc Tx may be internally connected within the QSFP transceiver module in any combination. The connector pins are each rated for a maximum current of 500mA.
Optical Receptacle Cleaning Recommendations
All fiber stubs inside the receptacle portions were cleaned before shipment. In the event of contamination of the optical ports, the recommended cleaning process is the use of forced nitrogen. If contamination is thought to have remained, the optical ports can be cleaned using a NTT international Cletop® stick type and HFE7100 cleaning fluid. Before the mating of patch-cord, the fiber end should be cleaned up by using Cletop® cleaning cassette.
Ordering Information SFP AQSFP-40G-PLR4
Model Number | Part Number | Voltage | Temperature |
AQSFP-40G-PLR4 | OPCS-S10-13-CBS | 3.3V | 0°C to 70 °C |