Features
WFL67220FA-QCS
WFL67220FA-QCS product is designed for OLT module based on XGPON and GPON technology. The product is an integrated module containing micro-optic component and semiconductor material. The module could implement DDM function. It could be used at key locations in optical networks
The Combo PON OLT SFP+ transceiver connects to the host system via a 2 x 10 SFP+ electrical interface, a 20-pin arrangement that aligns with the standard SFP+ cage on the OLT line card. This interface includes differential transmitter and receiver pairs for high-speed serial data, alongside control and monitoring pins like the I2C clock/data lines and module status indicators. This 2 x 10 pinout ensures that when the module is inserted, all power, ground, data, and management connections are established automatically, enabling true plug-and-play operation.
The Combo PON OLT SFP+ module supports single-fiber bidirectional transmission, allowing both legacy and next-generation PON services to share the same fiber infrastructure. Its integrated micro-optics WDM filter combines and separates four distinct wavelengths-1490nm and 1577nm for downstream, 1270nm and 1310nm for upstream-within the compact SFP+ package. This internal WDM integration reduces external cabling, minimizes signal loss, and simplifies ODN planning.
The module requires a single 3.3V power source, which is readily available from the SFP+ cage on the host OLT line card, eliminating the need for any external power connections. When properly inserted, the 3.3V supply is automatically applied to the module through pins 15 and 16 of the 2 x 10 electrical interface. This standard power requirement ensures that the module can be safely installed in any SFP+ slot without risk of voltage mismatch or damage to the host equipment.
The Combo PON OLT SFP+ module features SFF-8472 compliant digital diagnostic monitoring (DDM/DOM), providing full visibility into its operational status. Key parameters including transmit/receive optical power, laser bias current, temperature, and voltage are all accessible via the standard I2C interface. This SFF-8472 compliance guarantees compatibility with industry-standard management tools, simplifying network integration and maintenance.
Parameter
|
Absolute Maximum Ratings |
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|
Parameter |
Symbol |
Min. |
Max. |
Unit |
Note |
|
|
Storage Temperature |
Tst |
-40 |
+85 |
°C |
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|
Operating relative humidity (Non- condensing) |
RH |
5 |
90 |
% |
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|
Operating Case Temperature |
Tc |
0 |
70 |
°C |
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|
Input Voltage |
- |
GND |
Vcc |
V |
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|
Power Supply Voltage |
Vcc-Vee |
-0.5 |
+3.6 |
V |
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|
Receiver Optical Input Power |
2 |
dBm |
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|
Recommended Operating Conditions |
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|
Parameter |
Symbol |
Min. |
Typ |
Max. |
Unit |
Note |
|
Power Supply Voltage |
Vcc |
+3.14 |
+3.3 |
+3.46 |
V |
|
|
Power Supply Current |
Icc |
- |
800 |
mA |
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|
Operating relative humidity(Non-condensing) |
RH |
5 |
85 |
% |
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|
Case Temperature (Operating) |
TC |
0 |
- |
70 |
°C |
|
|
I2C clock frequency |
- |
100 |
400 |
KHz |
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|
Power consumption Max |
- |
- |
- |
2.65 |
W |
|
Electrical Characteristics
internal structure of XGPON/GPON dual-mode SFP+ OLT optical transceiver module
|
Transmitter Electrical Characteristics |
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|
Parameter |
Symbol |
Min |
Typ |
Max |
Units |
|
|
TX Differential Input Impendence |
ZIN |
90 |
100 |
110 |
Ω |
|
|
XGPON TX Differential Input Amplitude |
Vin(diff) |
120 |
800 |
mVpp |
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|
GPON TX Differential Input Amplitude |
Vin(diff) |
200 |
1600 |
mVpp |
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|
TX_Disable |
Disable |
2 |
Vcc |
V |
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|
Enable |
0 |
0.8 |
V |
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|
TX_Fault |
Fault |
2.4 |
Vcc |
V |
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|
Normal |
0 |
0.4 |
V |
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|
Receiver Electrical Characteristics |
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|
Parameter |
Symbol |
Min |
Typ |
Max |
Units |
|
|
RX Differential Output Impendence |
ZIN |
100 |
Ω |
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|
XGPON Rx Differential Output Amplitude |
Vout(diff) |
400 |
800 |
mVpp |
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|
GPON Rx Differential Output Amplitude |
Vout(diff) |
1100 |
2000 |
mVpp |
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|
SD Voltage-High |
Vlos.H |
2 |
Vcc |
V |
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|
SD Voltage-Low |
Vlos.l |
0 |
0.8 |
V |
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Optical Characteristics
|
Parameter |
Symbol |
Min |
Typ |
Max |
Units |
Notes |
|
|
XGPON Transmitter Optical Characteristics |
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|
Transmitter Signal Rate |
9.953 |
Gbps |
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|
Centre Wavelength |
λC |
1575 |
1577 |
1580 |
nm |
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|
Optical Spectrum Width (-20dB) |
Δλ |
1 |
nm |
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|
Side Mode Suppression Mode |
SMSR |
30 |
dB |
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|
Average Launch power (Room Temperature, BOL) |
Pout |
5.5 |
6 |
9 |
dBm |
Class D2 |
|
|
Average Launch power (Full Temperature, EOL) |
Pout |
5 |
6 |
9 |
dBm |
Class D2 |
|
|
Average Launch Power-off Transmitter |
Poff |
-39 |
dBm |
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|
Extinction Ratio |
ER |
8.2 |
dB |
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|
Output Eye Mask |
10% |
Compliant with G.987.2 |
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|
RIN12OMA |
-128 |
dB/Hz |
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|
Optical Return Loss Tolerance |
-15 |
dB |
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|
Total Jitter |
0.3 |
UI |
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|
GPON Transmitter Optical Characteristics |
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|
Transmitter Signal Rate |
2.488 |
Gbps |
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|
Centre Wavelength |
λC |
1480 |
1490 |
1500 |
nm |
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|
Optical Spectrum Width (-20dB) |
Δλ |
1 |
nm |
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|
Side Mode Suppression Mode |
SMSR |
30 |
dB |
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|
Average Launch power (Room Temperature, BOL) |
Pout |
5 |
5.5 |
8.5 |
dBm |
Class C+ |
|
|
Average Launch power (Full Temperature, EOL) |
Pout |
4.5 |
5.5 |
8.5 |
dBm |
Class C+ |
|
|
Average Launch Power-off Transmitter |
Poff |
-39 |
dBm |
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|
Extinction Ratio |
ER |
8.2 |
dB |
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|
Output Eye Mask |
10% |
Compliant with G.984.2 |
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|
RIN12OMA |
-128 |
dB/Hz |
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|
Optical Return Loss Tolerance |
-15 |
dB |
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|
XGPON Receiver Optical Characteristics |
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|
Operating Wavelength |
λC |
1260 |
1270 |
1280 |
nm |
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|
Receiver Sensitivity (Room Temperature, BOL) |
-31 |
dBm |
BER=10-4, 2.488Gbps, PRBS 231-1 NRZ |
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|
Receiver Sensitivity (Full Temperature, EOL) |
-30.5 |
dBm |
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|
Receiver Optical Overload (Full Temperature, EOL) |
-10 |
dBm |
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|
Damage Input Optical Power |
Pd |
2 |
dBm |
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|
Receiver Setting Time (Reset Out Of Preamble) |
Tsetting |
19.2 |
ns |
Receiver Setting Time (Reset Out Of Preamble) |
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|
Receiver Setting Time (Reset In Preamble) |
Tsetting |
12.8 |
ns |
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|
RX_SD Assert |
PLOSD |
-31.5 |
dBm |
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|
RX_SD De-assert |
PLOSA |
-45 |
dBm |
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|
RX_SD Hysteresis |
Phy |
0.5 |
- |
dB |
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|
Receiver Reflectance |
-20 |
dB |
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|
Optical Return Loss Tolerance |
10 |
dB |
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|
Isolation @1290~1330nm |
30 |
dB |
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|
GPON Receiver Optical Characteristics |
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|
Operating Wavelength |
λC |
1290 |
1310 |
1330 |
nm |
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|
Receiver Sensitivity (Room Temperature, BOL) |
Psen |
-32 |
nm |
BER=1*10-10 , 1.244Gbps, PRBS 223-1, NRZ |
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|
Receiver Sensitivity (Full Temperature, EOL) |
Psen |
-31 |
nm |
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|
Receiver Optical Overload (Full Temperature, EOL) |
Psat |
-12 |
dB |
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|
Damage Input Optical Power |
Pd |
5 |
dBm |
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|
Receiver Setting Time (Reset Out Of Preamble) |
Tsetting |
19.2 |
ns |
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|
Receiver Setting Time (Reset In Preamble) |
Tsetting |
12.8 |
ns |
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|
RX_SD Assert |
PLOSD |
-32.5 |
dBm |
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|
RX_LOS De-assert |
PLOSA |
-45 |
dBm |
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|
RX_SD Hysteresis |
Phy |
0.5 |
6 |
dB |
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|
Receiver Reflectance |
-20 |
dB |
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|
Optical Return Loss Tolerance |
10 |
dB |
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|
Isolation @1260~1280nm |
30 |
dB |
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Digital Diagnostic Monitor Accuracy
|
Data Addr |
Parameter |
Range |
Accuracy |
Notes |
|
96-97 |
Temperature |
-40 to 125.C |
±3.C |
Case Temp |
|
98-99 |
Vcc Voltage |
0 to 6.55 V |
±3% |
|
|
100-101 |
10G Tx Bias Current |
0 to 262 mA |
±3% |
Unit value 4uA |
|
102-103 |
10G Tx Power |
-37 to 11.2 dBm |
±2dB |
Unit value 0.2uW |
|
104-105 |
10G/1G Rx Power |
-40 to 8.2 dBm |
±2dB |
Unit value 0.1uW |
Package Diagram (Unit: mm)
