Uncooled CWDM DFB lasers, directly modulated
Fiber connector: SMF LC duplex connector
Power dissipation < 3.5W
1 Features
Duplex LC connector
Hot-pluggable QSFP+ form factor
Operating data rate up to11.3Gbps per Lane
Up to 10km transmission
Maximum 3.5W operation power
Compliant with IEEE 802.3ba Compliant with SFF 8436
Built-in Digital Diagnostic Monitoring (DDM) functions
Complies with RoHS directive (2002/95/EC)
Single +3.3V power supply operating
2 Applications
40GBASE-LR4 40G Ethernet
3 Optical Characteristics
Transmitter Characteristics
|
Parameter |
Symbol |
Min. |
Typ. |
Max. |
Unit |
Note |
|
Signal Speed per lane |
Sp |
|
10.3125 |
|
Gbps |
|
|
Center Wavelength |
l |
1264.5 |
1271 |
1277.5 |
nm |
Lane0 |
|
1284.5 |
1291 |
1297.5 |
nm |
Lane1 |
||
|
1304.5 |
1311 |
1317.5 |
nm |
Lane2 |
||
|
1324.5 |
1331 |
1337.5 |
nm |
Lane3 |
||
|
Spectral Width (-20dB) |
Dl |
- |
- |
1 |
nm |
|
|
Side Mode Suppression Ratio |
SMSR |
30 |
- |
- |
dB |
|
|
Total Output Optical Power |
Pot |
|
|
8.3 |
dBm |
|
|
Average Optical Output Power |
Po |
-7 |
- |
2.3 |
dBm |
|
|
Optical Modulation Amplitude, Each Lane |
OMA |
-4 |
|
3.5 |
dBm |
|
|
Extinction Ratio |
Er |
3.5 |
- |
- |
dB |
|
|
Differential Input Impedance |
- |
80 |
100 |
120 |
Ω |
|
|
Differential Data Input Swing |
VINPP |
120 |
|
1000 |
mV |
|
Receiver Characteristics
|
Parameter |
Symbol |
Min. |
Typ. |
Max. |
Units |
Notes |
|
Wavelength of Operation |
l |
1264.5 |
1271 |
1277.5 |
nm |
Lane0 |
|
1284.5 |
1291 |
1297.5 |
nm |
Lane1 |
||
|
1304.5 |
1311 |
1317.5 |
nm |
Lane2 |
||
|
1324.5 |
1331 |
1337.5 |
nm |
Lane3 |
||
|
Optical Input Power, each lane |
Pin |
-13.7 |
- |
2.3 |
dBm |
4.4.1 |
|
Damage Threshold |
Pmax |
- |
- |
3.3 |
dBm |
|
|
Receiver Sensitivity (OMA), each Lane |
Rxsen |
|
|
-11.5 |
dBm |
|
|
Differential Data Output Swing |
VOUTPP |
350 |
|
800 |
mV |
|
Note4.4.1: Measured with 10.3125Gbps, BER=1x10-12
Digital Diagnostic Monitoring Characteristics
|
Parameter |
Symbol |
Range |
Accuracy |
|
Transceiver Case Temperature |
T |
Measured transceiver case temperature over specified operating range |
±3°C |
|
Supply Voltage |
Vcc |
Internally measured transceiver supply voltage ,3.0~3.6V |
±3% |
|
TX Bias Current |
Id |
Measured TX Bias current in uA |
±10% |
|
TX Output Power |
Po |
Measured TX Output Power in dBm Over the specified output power range |
±3dB |
|
Received Optical Power |
Pi |
Measured RX Received Power in dBm Over the specified input power range |
±3dB |
4 Pin Definitions
Pin Diagram
Pin Descriptions
|
Pin# |
Logic |
Name |
Function |
Notes |
|
1 |
|
GND |
Ground |
|
|
2 |
CML-I |
Tx2n |
Transmitter Inverted Data Input |
|
|
3 |
CML-I |
Tx2p |
Transmitter Non-Inverted Data output |
|
|
4 |
|
GND |
Ground |
|
|
5 |
CML-I |
Tx4n |
Transmitter Inverted Data Input |
|
|
6 |
CML-I |
Tx4p |
Transmitter Non-Inverted Data output |
|
|
7 |
|
GND |
Ground |
|
|
8 |
LVTLL-I |
ModSelL |
Module Select |
|
|
9 |
LVTLL-I |
ResetL |
Module Reset |
|
|
10 |
|
VccRx |
+3.3V Power Supply Receiver |
|
|
|
Pin# |
Logic |
Name |
Function |
|
31 |
LVTTL-I |
LPMode |
Low Power Mode |
|
|
32 |
|
GND |
Ground |
|
|
33 |
CML-I |
Tx3p |
Transmitter Non-Inverted Data Input |
|
|
34 |
CML-I |
Tx3n |
Transmitter Inverted Data Output |
|
|
35 |
|
GND |
Ground |
|
|
36 |
CML-I |
Tx1p |
Transmitter Non-Inverted Data Input |
|
|
37 |
CML-I |
Tx1n |
Transmitter Inverted Data Output |
|
|
38 |
|
GND |
Ground |
5 Ordering Information
|
Part Number |
Operating Case Temperature |
RoHS Compliant |
|
HD-QSFP+/40G-LR4 |
0 ~ 70 °C |
RoHS-6 |
|
HD-QSFP+/40G-LR4-I |
-40 ~ 85 °C |
RoHS-6 |
6 Document History
|
Version |
Change Description |
Changed by |
Date |
|
VER A |
Initial Release |
Wang Xin |
01/15/2021 |

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