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
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