Fiberend
40Gb/s QSFP+ SR4 Optical Transceiver
40G-Q-S01D
40Gb/s QSFP+ SR4 Optical Transceiver
40G-Q-S01D
 Product Features

4 independent full-duplex channels Up to
10.5Gbps data rate per channel

MTP/MPO optical connector

Capable of over 150mtransmission on
OM4 multi-mode ribbon fiber

Single +3.3V power supply

QSFP+ MSA compliant

Operating case temperature: 0~70℃

RoHS compliant

Compliant with IEEE802.3ba

Compliant with QSFP+ MSA: SFF-8436
 Applications

40G Ethernet

Infiniband 4X SDR DDR QDR

40G Telecom Connections
 General
Fiberends’s 40G-Q-S01D transceiver modules are designed for use in 40 Gigabit per
second links over parallel multimode fiber, including breakout to four 10 Gigabit per second
links. They are compliant with the QSFP+ MSA and IEEE 802.3ba 40GBASE-SR4 and
compatible with IEEE 802.3ae 10GBASE-SR. The optical transceiver is compliant per the RoHS
Directive 2011/65/EU. They are RoHS compliant and lead-free.
 Product Selection
Part Number
Operating Case temperature
DDMI
40G-Q-S01D
Commercial (0~70℃)
Yes
 Regulatory Compliance

ESD to the Electrical PINs: compatible with MIL-STD-883E Method 3015.7

Immunity compatible with IEC 61000-4-3

EMI compatible with FCC Part 15 Class B EN55022 Class B (CISPR 22B) VCCI Class B

Laser Eye Safety compatible with FDA 21CFR 1040.10 and 1040.11 EN60950, EN (IEC) 60825-1,2

RoHS compliant with RoHS 2 (2011/65/EU)
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Rev1.0
2017-05
Page 1
Fiberend
40Gb/s QSFP+ SR4 Optical Transceiver
40G-Q-S01D
 Pin Descriptions
Pin
Symbol
Name/Description
Ref.
1
1
GND
Ground
2
Tx2n
Transmitter Inverted Data Input
3
Tx2p
Transmitter Non-Inverted Data output
4
GND
Ground
5
Tx4n
Transmitter Inverted Data Input
6
Tx4p
Transmitter Non-Inverted Data output
7
GND
Ground
8
ModSelL
Module Select
9
ResetL
Module Reset
10
VccRx
﹢3.3V Power Supply Receiver
11
SCL
2-Wire Serial Interface Clock
12
SDA
2-Wire Serial Interface Data
13
GND
Ground
14
Rx3p
Receiver Non-Inverted Data Output
15
Rx3n
Receiver Inverted Data Output
16
GND
Ground
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 Inverted Data Output
1
25
Rx4p
Receiver Non-Inverted Data Output
26
GND
Ground
27
ModPrsL
Module Present
28
IntL
Interrupt
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Rev1.0
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1
1
2
1
1
Page 2
Fiberend
40Gb/s QSFP+ SR4 Optical Transceiver
40G-Q-S01D
29
VccTx
+3.3 V Power Supply transmitter
2
30
Vcc1
+3.3 V Power Supply
2
31
LPMode
Low Power Mode
32
GND
Ground
33
Tx3p
Transmitter Non-Inverted Data Input
34
Tx3n
Transmitter Inverted Data Output
35
GND
Ground
36
Tx1p
Transmitter Non-Inverted Data Input
37
Tx1n
Transmitter Inverted Data Output
38
GND
Ground
1
1
1
Notes:
1.
GND is the symbol for signal and supply (power), Connect these directly to the host
board signal common ground plane
2.
VccRx, Vcc1 and VccTx are the receiving and transmission power suppliers and shall
be applied concurrently. Vcc Rx, Vcc1 and Vcc Tx may be internally connected within
the QSFP+, The connector pins are each rated for a maximum current of 500mA.
QSFP Transceiver Electrical Pad Layout
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Rev1.0
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Page 3
Fiberend
40Gb/s QSFP+ SR4 Optical Transceiver
40G-Q-S01D
 Optical Interface Lanes and Assignment
Outside view of the QSFP+ module MPO
Lane Assignment
Fiber #
Lane Assignment
1
RX0
2
RX1
3
RX2
4
RX3
5
Not used
6
Not used
7
Not used
8
Not used
9
TX3
10
TX2
11
TX1
12
TX0
 Recommend Circuit Schematic
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Rev1.0
2017-05
Page 4
Fiberend
40Gb/s QSFP+ SR4 Optical Transceiver
40G-Q-S01D
 Absolute Maximum Ratings
Parameter
Symbol
Min
Maximum Supply Voltage
Vcc
Storage Temperature
Operating Humidity
Typ
Max
Unit
-0.5
+4.0
V
TS
-40
+85
°C
RH
0
85
%
Ref.
 Recommended Operating Conditions
Parameter
Symbol
Min
Typ
Max
Unit
Power Supply Voltage
Vcc
3.13
3.30
3.47
V
Power Supply Current
Icc
432
mA
Case Operating Temperature
Tc
0
+70
°C
Bit Rate per Lane
Br
1062
10500
Mbps
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Rev1.0
2017-05
Ref.
Page 5
Fiberend
40Gb/s QSFP+ SR4 Optical Transceiver
40G-Q-S01D
Link distance on OM3 MMF
Dmax
Link distance on OM4 MMF
Dmax
-
-
100
m
150
m
 Electrical Characteristics (TOP=25°C, Vcc=3.3Volts)
Parameter
Symbol
Data Rate, each Lane
Min
Max
Unit
1
10.5
Gbps
VCC
V
0.7
V
150
ps
Control I/O Voltage, High
VIH
2.0
Control I/O Voltage, Low
VIL
0
Inter-Channel Skew
TSK
RESETL Duration
Typ
10
Ref.
us
RESETL De-assert time
2000
ms
Power on time
2000
ms
4
V
Transmitter (XLPPI)
Single Ended Output Voltage Tolerance
-0.3
15
AC Common mode Voltage Tolerance
(RMS)
Tx Input Diff Voltage
Vi
90
Tx Input Diff Impedance
Zi
80
Differential Input Return Loss
100
1600
mV
120
Ω
See IEEE 802.3ba 86A.4.11
J2 Jitter Tolerance
Jt2
0.17
J9 Jitter Tolerance
Jt9
0.29
DDPWS
0.07
Data Dependent Pulse Width Shrinkage
mV
Eye Mask Coordinates {X1, X2,Y1, Y2}
dB
U
I
U
I
U
I
0.11,0.31
UI
95,350
mV
Receiver (XLPPI)
Single Ended Output Voltage
Tolerance1
-0.3
4
V
7.5
mV
5
%
See IEEE 802.3ba 86A.4.2.1
dB
See IEEE 802.3ba 86A.4.2.2
dB
AC Common mode Voltage Tolerance
(RMS)
Termination Mismatch at 1MHz
Differential Output Return Loss
Common-mode Output Return Loss
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Rev1.0
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Page 6
Fiberend
Rx Output Diff Voltage
Rx Output Rise and Fall Time
40Gb/s QSFP+ SR4 Optical Transceiver
40G-Q-S01D
Vo
600
Tr/Tf
J2 Jitter Tolerance
Jr2
J9 Jitter Tolerance
Jr9
800
mV
35
ps
0.46
UI
0.65
Eye Mask Coordinates {X1, X2, Y1, Y2}
UI
0.29, 0.5
UI
150, 425
mV
 Optical Characteristics (TOP=25°C, Vcc=3.3 Volts)
Parameter
Symbol
Min
Typ
Center Wavelength
λt
840
850
RMS Spectral Width
Pm
Max
Unit
Note
Transmitter
Average Optical Power, each Lane
Pavg
-7.6
Optical Modulation Amplitude (OMA)
Poma
-6
Peak Power, each Lane
-2.5
860
nm
0.65
nm
+2.4
dBm
+
3
dBm
4
dBm
PPt
Launch Power in OMA minus Transmitter
and Dispersion Penalty (TDP), each Lane
dB
-7
TDP, each Lane
Extinction Ratio
Relative Intensity Noise
4
ER
dB
dB
3
-128
Rin
dB/Hz
12d
B
refle
ction
Optical Return Loss Tolerance
12
dB
>86% at 19um
Encircled Flux
<30% at 4.5um
Transmitter Eye Mask Definition
0.23, 0.34, 0.43, 0.27,
0.33, 0.4
{X1, X2, X3, Y1, Y2, Y3}
Average Launch Power OFF
Poff
-30
dBm
860
nm
Transmitter, each Lane
Receiver
Center Wavelength
λr
840
Damage Threshold
THd
2.4
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Rev1.0
2017-05
dBm
Page 7
Fiberend
40Gb/s QSFP+ SR4 Optical Transceiver
40G-Q-S01D
Average Power at Receiver Input, each
Lane
-9.5
2.4
Receiver Reflectance
OMA, each Lane
Stressed Receiver Sensitivity in OMA, each
Lane
-12
dB
3
dBm
-7.5
Peak Power, each Lane
PPr
Los Assert
LosA
Los Dessert
LosD
Los Hysteresis
LosH
dBm
4
-30
dBm
dBm
-12
0.5
dBm
dBm
dB
 Mechanical Specifications
40G-Q-S01D(dimensions are in mm)
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Rev1.0
2017-05
Page 8
Fiberend
40Gb/s QSFP+ SR4 Optical Transceiver
40G-Q-S01D
 EEPROM Information
EEPROM memory map specific data field description is as below:
 Digital Diagnostic Monitoring Interface
Five transceiver parameter values are monitored. The following table defines the monitored
parameter’s accuracy.
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Rev1.0
2017-05
Page 9
Fiberend
Parameter
40Gb/s QSFP+ SR4 Optical Transceiver
40G-Q-S01D
Range
Accuracy
Calibration
Temperature
0 to +70°C (C)
±3°C
Internal
Voltage
2.97 to 3.63V
±3%
Internal
0 to 100mA
±10%
Internal
-12 to 2.5dBm
±2dB
Internal
Bias Current
RX Power
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2017-05
Page 10
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