PROLABS – JNP-QSFP-40G-LX4-C
40GBd QSFP+ LX4 Transceiver
JNP-QSFP-40G-LX4-C Overview
PROLABS’s JNP-QSFP-40G-LX4-C QSFP+ LX4 optical transceivers are based on Ethernet IEEE P802.3ba standard
and SFF 8436 standard. The QSFP+ transceiver converts 4 inputs channels of 10Gb/s electrical data to 4 CWDM
optical signals, and multiplexes them into a single channel for 40Gb/s optical transmission. Reversely, on the
receiver side, the module optically de-multiplexes a 40Gb/s input into 4 CWDM channels signals, and converts
them to 4 channel output electrical data.
The central wavelengths of the 4 CWDM channels are 1271, 1291, 1311 and 1331 nm as members of the CWDM
wavelength grid defined in ITU-T G694.2.
Product Features
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4 CWDM Lanes MUX/DEMUX design
Up to 11.2Gbps data rate per wavelength
QSFP+ MSA compliant
Duplex LC connector
Built-in digital diagnostic functions
Up to 2km on SMF or 150m on MMF
Maximum 3.5W operation power
RoHS Compliance
Class 1 Laser
Operating temperature range: 0℃ to 70℃.
Applications
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40G Ethernet
Infiniband interconnects
Ordering Information
Part Number
JNP-QSFP-40G-LX4-C
Description
40G QSFP+ 1310nm LC Connectors, Up to 2km on SMF or 150m over MMF
General Specifications
Parameter
Bit Error Rate
Operating Temperature
Storage Temperature
Input Voltage
Symbol
BER
TOP
TSTO
VCC
 20
3.14
VMAX
 0.5
Maximum Voltage
Min
Typ
Max
Unit
Remarks
℃
℃
Case temperature
1012
0
70
3.3
85
3.47
Ambient temperature
V
3.6
V
For electrical power
interface
Link Distances
Parameter
40 GBd
Fiber Type
Distance Range (Km)
9/125um SMF
10
Optical Characteristics – Transmitter
Parameter
Total Output Optical Power
Average Launch Power (Each Lane)
Optical Center Wavelength
Optical Modulation Amplitude, Each Lane
Extinction Ratio
Spectral Width (– 20 dB)
Side Mode Suppression Ratio
Relative Intensity Noise
Transmitter Dispersion Penalty
Optical Return Loss Tolerance
Transmitter Eye Mask
Launch Power of OFF
Transmitter
Symbol
PT
P
C
OMA
ER

SMSR
RIN
TDP
Min
Typ
Max
Unit
8.3
2.3
1277.5
1297.5
1317.5
1337.5
3.5
dBm
-7
dBm
1264.5
1271
nm
1284.5
1291
nm
1304.5
1311
nm
1324.5
1331
nm
-4
dB
3.5
dB
0.6
nm
30
dB
 128
dB/Hz
2.3
dB
20
dB
Compliant with IEEE 802.3ba
POUT_OFF
– 30
dBm
Remarks
Average
L0
L1
L2
L3
Lane
Lane
Lane
Lane
Average
Optical Characteristics – Receiver
Parameter
Symbol
Optical Center Wavelength
C
Optical Input Power, each lane
PIN
Damage Threshold
Receiver Sensitivity (OMA), each Lane
Stressed Receiver Sensitivity in OMA,
Each Lane
Receiver Reflectance
LOS Assert
LOS De-Assert
LOS Hysteresis
P
Min
Typ
Max
Unit
1264.5
1271
1291
1311
1331
1277.5
1297.5
1317.5
1337.5
2.3
nm
nm
nm
nm
dBm
3.5
-9.9
dBm
dBm
– 26
dB
dBm
dBm
dB
1284.5
1304.5
1324.5
-13.7
3.3dB
m
RX_SEN1
TRRX
LOSA
LOSD
– 25
– 16
0.5
Remarks
L0 Lane
L1 Lane
L2 Lane
L3 Lane
Average,
Informative
Electrical Characteristics – Transmitter
Parameter
Input differential impedance
Single ended data input swing
Transmit disable voltage
Transmit enable voltage
Symbol
RIN
VIN_PP
VD
VEN
Min
Typ
Max
100
90
Vcc-1.3
VEE
Unit
Ω
600
VCC
VEE+0.8
mV
V
V
Remarks
Non condensing
Electrical Characteristics – Receiver
Parameter
Single ended data output swing
Data output rise time (20%-80%)
Data output fall time (20%-80%)
LOS Fault
LOS Normal
Symbol
VOUT_PP
TR
TF
VLOS_Fault
VLOS_normal
Min
Typ
Max
Unit
150
300
30
30
425
mV
ps
ps
V
V
Vcc-1.3
VEE
VCC_HOST
VEE+0.5
Remarks
Block Diagram of Transceiver
This product converts the 4-channel 10Gb/s electrical input data into CWDM optical signals (light), by a driven 4wavelength Distributed Feedback Laser (DFB) array. The light is combined by the MUX parts as a 40Gb/s data,
propagating out of the transmitter module from the SMF. The receiver module accepts the 40Gb/s CWDM optical
signals input, and de-multiplexes it into 4 individual 10Gb/s channels with different wavelength. Each wavelength
light is collected by a discrete photo diode, and then outputted as electric data after amplified by a TIA.
Dimensions
ALL DIMENSIONS ARE ±0.2mm UNLESS OTHERWISE SPECIFIED
UNIT: mm
PCB Layout Recommendation
Electrical Pad Layout
Pin Assignment
PIN #
Symbol
1
2
3
GND
Tx2n
Tx2p
Ground
Transmitter Inverted Data Input
Transmitter Non-Inverted Data Input
Description
4
5
GND
Tx4n
Ground
Transmitter Inverted Data Input
6
Tx4p
Transmitter Non-Inverted Data Input
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
GND
ModSelL
ResetL
Vcc RX
SCL
SDA
GND
Rx3p
Rx3n
GND
Rx1p
Rx1n
GND
GND
Rx2n
Ground
Module Select
Module Reset
+3.3V Power Supply Receiver
2-wire serial interface clock
2-wire serial interface data
Ground
Receiver Non-Inverted Data Output
Receiver Inverted Data Output
Ground
Receiver Non-Inverted Data Output
Receiver Inverted Data Output
Ground
Ground
Receiver Inverted Data Output
Remarks
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
Rx2p
GND
Rx4n
Rx4p
GND
ModPrsL
IntL
Vcc TX
Vcc1
LPMode
GND
Tx3p
Tx3n
GND
Tx1p
Tx1n
GND
Receiver Non-Inverted Data Output
Ground
Receiver Inverted Data Output
Receiver Non-Inverted Data Output
Ground
Module Present
Interrupt
+3.3V Power Supply transmitter
+3.3V Power Supply
Low Power Mode
Ground
Transmitter Non-Inverted Data Input
Transmiiter Inverted Data Input
Ground
Transmitter Non-Inverted Data Input
Transmiiter Inverted Data Input
Ground
References
1. IEEE standard 802.3ba. IEEE Standard Department, 2010.
2. QSFP+ 10Gbs 4X PLUGGABLE TRANSCEIVER – SFF-8436