Alpha Bridge AQSFP-40G-SR4

Features

  • 4 independent full-duplex channels
  • Up to 11.2Gb/s data rate per channel
  • MTP/MPO optical connector
  • QSFP+ MSA compliant
  • Digital diagnostic capabilities
  • Up to 100m transmission on OM3 multi- mode ribbon fiber
  • CML compatible electrical I/O
  • Single +3.3V power supply
  • Operating case temperature: 0 to 70oC
  • XLPPI electric interface
  • Maximum power consumption 1.5W
  • RoHS-6 compliant

Applications

  • Rack to Rack
  • Data Center
  • Infiniband QDR, DDR and SDR
  • 40G Ethernet

Absolute Maximum Ratings AQSFP-40G-SR4 ​

Parameter Symbol Min. Max. Units
Storage Temperature Ts -40 85 °C
Power Supply Voltage Vcc -0.3 4 V
Relative Humidity RH 5 95 %
Signal Input Voltage Vcc -0.3 +0.3                              V
Receive Input Optical Power (Damage Threshold) Pdmg   5.0   dBm

Recommended Operating Conditions AQSFP-40G-SR4 ​

                      Parameter Symbol Min. Typ. Max. Units
Operating Temperature Topc 0   70 ℃
Power Supply Voltage Vcc 3.1 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 (OM3) D     100 m

Diagnostics Monitoring AQSFP-40G-SR4 ​

Parameter Symbol Accuracy Units 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   DMI_RX_Ch   ±2 dB 1
Channel Bias current monitor   DMI_Ibias_Ch ±10% mA Ch1~Ch4
Channel TX power monitor absolute error   DMI_TX_Ch   ±2   dB  

Notes: 1. Due to measurement accuracy of different single mode fibers, there could be an additional +/-1 dB fluctuation, or a +/- 3 dB total accuracy.

Transmitter Electro-optical Characteristics AQSFP-40G-SR4 ​

Parameter Symbol Min Type Max Units Notes
Power Consumption       1.5 W  
Supply Current ICC     450 mA  
Transceiver Power-on Initialization Time       2000 ms 1
          Referred to
  -0.3   4.0 V TP1 signal
          common
AC Common Mode Input Voltage 15     mV RMS
Tolerance Differential Input Voltage Swing Threshold     50       mVpp   LOSA Threshold
Differential Input Voltage Swing Vin,pp 180   1200 mVpp  
Differential Input Impedance Zin 90 100 110 Ohm  
Differential Input Return Loss   See IEEE 802.3ba 86A.4.11 dB 10MHz-
        11.1GHz
J2 Jitter Tolerance Jt2 0.17 UI  
J9 Jitter Tolerance Jt9 0.29 UI  
Data Dependent Pulse Width Shrinkage (DDPWS) Tolerance   0.07 UI  
Eye Mask Coordinates {X1,X2, Y1, Y2}   0.11, 0.31                                  UI 95,35 Hit Ratio=5*10-5

High Speed Electrical Specifications AQSFP-40G-SR4 ​

Parameter Symbol Min Type Max Units Notes
Parameter Symbol Min Type Max Units Notes λc 840 850 860 nm  
RMS Spectral Width △λrms   0.5 0.65 Nm  
Average Launch Power, each Lane PAVG -7.6   1.0 dBm 3
  Optical Modulation Amplitude (OMA) each Lane POMA -5.6   3.0 dBm 4
  Difference in Launch Power between any Two Lanes (OMA)   Ptx,diff       4.0   dB  
Peak Power, each Lane PPT   4.0 dBm  
Launch Power in OMA minus Transmitter and Dispersion Penalty (TDP), each Lane   -6.5   dBm  
TDP, each Lane     3.5 dB  
Extinction Ratio ER 3.0   dB  
Relative Intensity Noise RIN                         -128 dB/Hz 12dB reflection
Optical Return Loss Tolerance TOL                          12 dB  
Encircled Flux                 ≥ 86% at 19um, ≤ 30% at 4.5um
Transmitter Eye Mask Definition {X1, X2, X3, Y1, Y2, Y3}                           0.23, 0.34, 0.43, 0.27, 0.35, 0.4
Average Launch Power OFF Transmitter, each Lane Poff                                          -30 dBm  

 Notes: 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. 2. The single ended input voltage tolerance is the allowable range of the instantaneous input signals. 3. The maximum transmitter average optical power of 1.0 dBm is well within the guardband of receiver overload specifications of commercially available 10GBASE-SR SFP+ transceivers. 4. Even if the TDP < 0.9 dB, the OMA min must exceed the minimum value specified here

Optical Transmitter Characteristics AQSFP-40G-SR4 ​

Parameter Test Point Min Typ. Max Units Notes
Signaling Rate, Each Lane     25.78125   Gbps  
  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
Rate Tolerance     -100     100 From normal  ppm rate
Side-mode Suppression R atio SMSR 30      dB
Total Launch Power       10.5 dBm
Average Launch Power, Each Lane   Pavg   -4.3 4.5 dBm
Extinction Ratio   ER   4 dB
Optical Modulation Amplitude, Each Lane OMA 1.3   4.5 dBm  
Difference in Launch Power between Any Two Lanes OMA     5 dB  
Transmitter and Dispersion Penalty, Each Lane TDP     2.2 dB  
Average Launch Power of OFF Transmitter, Each Lane       -30 dBm  
Relative Intensity Noise RIN20O MA     -130 dB/Hz  
Transmitter Reflectance       -12 dB  
Transmitter Eye Mask {X1, X2, X3, Y1, Y2, Y3} 0.25, 0.4, 0.45, 0.25, 0.28, 0.4}

Receiver Electro-optical Characteristics AQSFP-40G-SR4 ​

Parameter Symbol Min Type Max Units Notes
            Referred to
Single-ended Output Voltage   -0.3   4.0 V signal
            common
AC Common Mode Output Voltage       7.5 mV RMS
Differential Output Voltage Swing Vout,pp 600   800 mVpp  
Differential Output Impedance Zout 90 100 110 Ohm  
Termination Mismatch at 1MHz       5 %  
Differential Output Return Loss See IEEE 802.3ba 86A.4.2.1 dB 10MHz- dB 11.1GHz
Common Mode Output Return Loss See IEEE 802.3ba 86A.4.2.2 dB 10MHz-11.1GHz
Output Transition Time   28   ps 20% to 80%
J2 Jitter Output Jo2   0.42 UI  
J9 Jitter Output Jo9   0.65 UI  
Eye Mask Coordinates 0.29, 0.5     UI Hit Ratio =
{X1, X2 Y1, Y2}     150, 425   mV 5x10-5
Center Wavelength Λc 840 850 860 nm  
Damage Threshold, each Lane THd 3.4     dBm 1
Average Receive Power, each Lane   -9.5   2.4 dBm  
Receiver Reflectance RR     -12 dB  
Receive Power (OMA), each Lane       3.0 dBm  
Receiver Sensitivity (OMA), each Lane SEN     -8.4 dBm  
Stressed Receiver Sensitivity (OMA), each Lane       5.4 dBm 2
Peak Power, each Lane PPR   4.0 dBm
LOS Assert LOSA -30   dBm
LOS Deassert LOSD   -12 dBm
LOS Hysteresis LOSH 0.5   dB
Conditions of Stress Receiver Sensitivity Test (Note 3)
Vertical Eye Closure Penalty, each Lane 1.9 dB
Stressed Eye J2 Jitter, each Lane 0.3 UI
Stressed Eye J9 Jitter, each Lane 0.47 UI
OMA of each aggressor lane 0.4 dBm

Notes:

  1. 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
  2. Measured with conformance test signal at receiver input for BER = 1×10-12.
  3. Vertical eye closure penalty and stressed eye jitter are test conditions for measuring stressed receiver They are not characteristics of the receiver.

Pin Descriptions AQSFP-40G-SR4

PIN Logic Symbol       Name/Description Note
    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  
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  
30   Vcc1 +3.3V Power Supply  
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

Ordering Information AQSFP-40G-SR4

Model Number Part Number Voltage Temperature
AQSFP-40G-SR4 40G QSFP MMF 850nm MTP/MPO 100m 3.3V 0°C to 70 °C
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