Product Details
D-net's 40G QSFP+ ER4 40KM transceiver module is designed in accordance with the QSFP Multi-Source Agreement (MSA) in terms of its form factor, optical/electrical connection, and digital diagnostic interface. This QSFP+ 40G 40KM module operates using a single +3.3V power supply and includes global control signals such as Module Present, Reset, Interrupt, and Low Power Mode, which are compatible with LVCMOS/LVTTL standards. To optimize against optical dispersion in long-haul systems, the 40G QSFP+ ER4 40KM transceiver module necessitates the use of single-mode fiber (SMF).
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Absolute Maximum Ratings
|
Parameter |
Symbol |
Min. |
Typical |
Max. |
Unit |
|
Storage Temperature |
TS |
-40 |
+85 |
°C |
|
|
Supply Voltage |
VCCT, R |
-0.5 |
4 |
V |
|
|
Relative Humidity |
RH |
0 |
85 |
% |
Recommended Operating Environment
|
Parameter |
Symbol |
Min. |
Typical |
Max. |
Unit |
|
Case operating Temperature |
TC |
0 |
+70 |
°C |
|
|
Supply Voltage |
VCCT, R |
+3.13 |
3.3 |
+3.47 |
V |
|
Supply Current |
ICC |
1000 |
mA |
||
|
Power Dissipation |
PD |
3.5 |
W |
Electrical Characteristics
(TOP = 0 to 70 °C, VCC = 3.13 to 3.47 Volts)
|
Parameter |
Symbol |
Min |
Typ |
Max |
Unit |
Note |
|
Data Rate per Channel |
|
- |
10.3125 |
11.2 |
Gbps |
|
|
Power Consumption |
|
- |
2.5 |
3.5 |
W |
|
|
Supply Current |
Icc |
|
0.75 |
1.0 |
A |
|
|
Control I/O Voltage-High |
VIH |
2.0 |
|
Vcc |
V |
|
|
Control I/O Voltage-Low |
VIL |
0 |
|
0.7 |
V |
|
|
Inter-Channel Skew |
TSK |
|
|
150 |
Ps |
|
|
RESETL Duration |
|
|
10 |
|
Us |
|
|
RESETL De-assert time |
|
|
|
100 |
ms |
|
|
Power On Time |
|
|
|
100 |
ms |
|
|
Transmitter |
||||||
|
Single Ended Output Voltage Tolerance |
|
0.3 |
|
4 |
V |
1 |
|
Common mode Voltage Tolerance |
|
15 |
|
|
mV |
|
|
Transmit Input Diff Voltage |
VI |
150 |
|
1200 |
mV |
|
|
Transmit Input Diff Impedance |
ZIN |
85 |
100 |
115 |
|
|
|
Data Dependent Input Jitter |
DDJ |
|
0.3 |
|
UI |
|
|
Receiver |
||||||
|
Single Ended Output Voltage Tolerance |
|
0.3 |
|
4 |
V |
|
|
Rx Output Diff Voltage |
Vo |
370 |
600 |
950 |
mV |
|
|
Rx Output Rise and Fall Voltage |
Tr/Tf |
|
|
35 |
ps |
1 |
|
Total Jitter |
TJ |
|
0.3 |
|
UI |
|
Note: 20~80%
Optical Parameters
(TOP = 0 to 70 °C, VCC = 3.0 to 3.6 Volts)
|
Parameter |
Symbol |
Min |
Typ |
Max |
Unit |
Ref. |
|
|
Transmitter |
|||||||
|
Wavelength Assignment |
L0 |
1264.5 |
1271 |
1277.5 |
nm |
||
|
L1 |
1284.5 |
1291 |
1297.5 |
nm |
|||
|
L2 |
1304.5 |
1311 |
1317.5 |
|
|||
|
L3 |
1324.5 |
1331 |
1337.5 |
nm |
|||
|
Side-mode Suppression Ratio |
SMSR |
30 |
- |
- |
dB |
||
|
Total Average Launch Power |
PT |
- |
- |
8.3 |
dBm |
||
|
Average Launch Power, each Lane |
-3 |
- |
5 |
dBm |
|||
|
TDP, each Lane |
TDP |
2.3 |
dB |
||||
|
Extinction Ratio |
ER |
3.5 |
6.0 |
dB |
|||
|
Transmitter Eye Mask Definition {X1, X2, X3, Y1, Y2, Y3} |
{0.25, 0.4, 0.45, 0.25, 0.28, 0.4} |
||||||
|
Optical Return Loss Tolerance |
- |
- |
20 |
dB |
||
|
Average Launch Power OFF Transmitter, each Lane |
Poff |
-30 |
dBm |
|||
|
Relative Intensity Noise |
Rin |
-128 |
dB/HZ |
1 |
||
|
Optical Return Loss Tolerance |
- |
- |
12 |
dB |
||
|
Receiver |
||||||
|
Damage Threshold |
THd |
3 |
dBm |
1 |
||
|
Average Power at Receiver Input, each Lane |
R |
-21 |
-6 |
dBm |
||
|
Receive Electrical 3 dB upper Cut off Frequency, each Lan |
12.3 |
GHz |
||||
|
RSSI Accuracy |
-2 |
2 |
dB |
|||
|
Receiver Reflectance |
Rrx |
-26 |
dB |
|||
|
Receiver Power (OMA), each Lane |
- |
- |
3.5 |
dBm |
||
|
Receive Electrical 3 dB upper Cutoff Frequency, each Lane |
12.3 |
GHz |
||||
|
LOS De-Assert |
LOSD |
-25 |
dBm |
|||
|
LOS Assert |
LOSA |
-35 |
dBm |
|||
|
LOS Hysteresis |
LOSH |
0.5 |
dB |
|||
Ordering Information
|
Part Number |
Description |
|
QSFP-40G-ER4 |
40Gb/s 40km QSFP+ Transceiver Hot Pluggable, Duplex LC Connector, Single mode |
FAQ
1. How does 40G Ethernet work?
40G Ethernet transmits data at a rate of 40 Gigabit per second, and common connections include fiber-optic connections and high-speed cable connections,40G Ethernet is the perfect solution for long-distance transmission and switch-to-switch transmission.
2. What is 40G QSFP?
40G QSFP+ optical transceiver refers to a four-channel small hot plug and plug optical module with a transmission rate of 40 Gbps, which can be used in data center, high-performance computing network, enterprise core network and other applications.











