Generic Compatible 40G ELR4 QSFP+ 20km DOM Duplex LC SMF Optical Transceiver Module

QSFP+40-CW4-20(ELR4)-LCD

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SPECIFICATIONS
Product ModelQSFP+40-CW4-20(ELR4)-LCDManufacturer BrandPHILISUN
Package TypeQSFP+Optical ConnectorLC Duplex
Max Data Rate40GbpsChannel Data Rate10.3125Gbps
Effective Transmission Distance20km
Wavelength1271nm
1291nm
1311nm
1331nm		Operating Voltage3.3V
Fiber TypeSMFCore Size9/125µm
Transmitter TypeDFB CWDMReceiver TypePIN
TX Power-4.5~2.3dBmReceiver Sensitivity<-12.5dBm
Digital Diagnostic Monitoring(DDM)YESReceiver Overload3.3dBm
Power Consumption≤3.5W (Commercial)
≤4.5W (Industrial)		ProtocolsSFF-8436 QSFP MSA
Operating Temperature(Commercial)0℃~+70℃Storage Temperature(Commercial)-40℃~+85℃
Operating Temperature(Industrial)-40℃~+85℃Storage Temperature(Industrial)-40℃~+85℃

 

PRODUCT PRESENTATION
The PHILISUN QSFP+ 40G CWDM4 20km ELR4 LC DX transceiver is a high-performance solution for 40GBASE Ethernet, supporting data transmission over single mode fiber (SMF) at distances of up to 20km. Operating at a wavelength of 1310nm and utilizing duplex LC connectors, it complies with SFF-8436 QSFP+ MSA and RoHS standards. Equipped with digital diagnostics accessible via the I2C interface, this hot-swappable transceiver provides real-time monitoring of operating parameters, making it an ideal choice for data centers, high-performance computing, and enterprise core and distribution networks.

 

TRANSCEIVER SERIES PRODUCTS

 

PRODUCTION & TESTING EQUIPMENT

 

PERFORMANCE PARAMETER
Absolute Maximum Ratings
Parameter Symbol Min. Max. Unit
Storage temperature TS -40 +85 °C
Supply voltage VCC -0.5 3.6 V
Operating relative humidity RH 0 85 %
 *Exceeding any one of these values may destroy the device immediately.

 

Recommended Operating Conditions
Parameter Symbol Min. Typical Max. Unit
Operating case temperature Tc 0 – +70 °C
Power supply voltage Vcc 3.15 3.3 3.45 V
Power supply current Icc – – 1100 mA
Power dissipation PD – – 3.5 W
Aggregate bit rate BRAVE – 41.25(40GE) – Gbps
Lane bit rate BRLANE – 10.3125(40GE) – Gbps

 

Performance Specifications-Electrical
Parameter    Symbol Min. Typ. Max Unit Notes
Transmitter
Single ended input voltage tolerance – -0.3 –    4 V   Referred to TP1 signal common
Differential input amplitude – 150 – 1000 mvp-p –
AC common mode input voltage tolerance – 15 – – mV RMS
Input impedance(differential) Zin 85   100 115 ohms Rin > 100 kohms @ DC
TX Disable Disable VIH 2 – Vcc+0.3 V –
Enable
VIL
 0 – 0.8 –
TX FAULT Fault VOH 2.4 – Vcc+0.3 V –
Normal VOL 0 – 0.8 –
Receiver
Single ended output voltage – -0.3 – 4
V
 Referred to ignal common
Differential output amplitude – 290 – 1000 mvp-p –
AC common mode voltage – – – 7.5 mV RMS
Termination mismatch at 1MHz – – – 5 % –
Output impedance(differential) Zout 85   100 115 ohms –
Output rise/fall time tr/tf 30 – – ps 10%~90%
  RX_LOS LOS VOH 2.4 – Vcc+0.3 V –
Normal VOL 0 – 0.8 V –

 

Optical and Electrical Characteristics
Parameter
Symbol
 Min. Typical Max. Unit
SMF L – 10 – km
Aggregate bit rate BRAVE – 41.25 – Gbps
Per lane bit rate BRLANE – 10.3125 – Gbps
Transmitter
Channels wavelength λC 1264.5 1271 1277.5 nm
1284.5
 1291 1297.5
1304.5 1311 1317.5
1324.5 1331 1337.5
-20dB spectral width ∆λ – – 1 nm
Average launch power, each lane Pout/lane -3.5 – 2.3 dBm
Extinction ratio Er 3.5 – – dB
Output optical eye IEEE 802.3ba-2010 Compliant
   Receiver
Channels wavelength λC 1264.5 1271 1277.5 nm
1284.5 1291 1297.5
1304.5 1311 1317.5
1324.5 1331 1337.5
Damage threshold 5.5 – – dBm
Receiver sensitivity in OMA, each lane Pmins – – -12.5 dBm
Maximum receive power, each lane Pmax 2.3 – – dBm
Receiver reflectance Rr – – -26 dB
Los de-assert LOSD – – -15 dBm
Los assert LOSA -24 – – dBm
Los hysteresis – 0.5 – – dB

 

FUNCTIONAL DESCRIPTION OF TRANSCEIVER

 

QSFP+ TRANSCEIVER ELECTRICAL PAD LAYOUT

 

PIN ARRANGEMENT AND DEFINITION
Pin Logic Symbol Description Plug Sequence Notes
1 – GND Ground 1 1
2 CML-I Tx2n Transmitter Inverted Data Input 3 –
3 CML-I Tx2p Transmitter Non-Inverted Data Input 3 –
4 – GND Ground 1 1
5 CML-I Tx4n Transmitter Inverted Data Input 3 –
6 CML-I Tx4p Transmitter Non-Inverted Data Input 3 –
7 – GND Ground 1 1
8 LVTTL-I ModSelL Module Select 3 –
9 LVTTL-I ResetL
Module Reset
 3 –
10 – VccRx +3.3V Power Supply Receiver 2 2
11 LVCMOS- I/O SCL 2-wire Serial Interface Clock 3 –
12 LVCMOS- I/O SDA 2-wire Serial Interface Data 3 –
13 – GND Ground 1 1
14 CML-O Rx3p Receiver Non-Inverted Data Output 3 –
15 CML-O Rx3n Receiver Inverted Data Output 3 –
16 – GND
Ground
 1 1
17 CML-O Rx1p Receiver Non-Inverted Data Output 3 –
18 CML-O Rx1n Receiver Inverted Data Output 3 –
19 – GND Ground 1 1
20 – GND Ground 1 1
21 CML-O Rx2n Receiver Inverted Data Output 3 –
22 CML-O Rx2p Receiver Non-Inverted Data Output 3 –
23 – GND Ground 1 1
24 CML-O Rx4n Receiver Inverted Data Output 3 –
25 CML-O Rx4p Receiver Non-Inverted Data Output 3 –
26 – GND Ground 1 1
27   LVTTL-O ModPrsL Module Present  3 –
28   LVTTL-O   IntL Interrupt  3 –
29 – VccTx +3.3V Power supply transmitter  2 2
30 – Vcc1 +3.3V Power supply  2 2
31   LVTTL-I   LPMode Low Power Mode  3 –
32 – GND Ground  1 1
33 CML-I Tx3p Transmitter Non-Inverted Data Input  3 –
34 CML-I Tx3n Transmitter Inverted Data Input  3 –
35 – GND Ground  1 1
36 CML-I Tx1p Transmitter Non-Inverted Data Input  3 –
37 CML-I Tx1n Transmitter Inverted Data Input  3 –
38 – GND Ground  1 1
1: GND is the symbol for signal and supply (power) common for the QSFP+ module. 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.
2: Vcc Rx, Vcc1 and Vcc Tx are the receiver and transmitter power supplies and shall be applied concurrently. Requirements defined for the host side of the Host Edge Card Connector are listed in Table 6. Recommended host board power supply filtering is shown in Figures 3 and 4. Vcc Rx Vcc1 and Vcc Tx may be internally connected within the QSFP+ Module in any combination. The connector pins are each rated for a maximum current of 500mA.

 

PRODUCT CERTIFICATION

 

QUALITY ADVANTAGE

 

COMPATIBLE BRANDS
CONFIGURATION INFORMATION
光模块产品详情订购信息---SFP28

 

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