Product Description
GPON OLT C++ , 20km , TX 1490nm 2.488Gbps , RX 1310nm 1.244Gbps, SFP , BIDI SC/UPC
Product Features
- Support ITU-T G.984.2 GPON OLT C++ application
- Single fiber bi-directional data links with symmetric 2.488Gbps Tx and 1.244Gbps Rx
- 1490nm continuous-mode transmitter with DFB LD
- 1310nm burst-mode receiver with APD-TIA
- 2-wire interface for integrated digital diagnostic Monitoring
- Receiver RESET, Signal Detect, RSSI function indication (RESET, RX_SD, RSSI)
- SFP package with SC/UPC receptacle optical interface
- Single +3.3V power supply
- Operation case temperature 0~70°C
- RoHS6 compliance
Application
GPON OLT Class C+
FTTx
Operating Condition
| Parameter |
Unit |
Min. |
Typical |
Max. |
| Storage Temperature |
°C |
-40 |
|
85 |
| Operating Case Temp for C-temp |
°C |
0 |
|
70 |
| Operating Relative Humidity |
% |
5 |
|
95 |
| Power Supply Voltage |
V |
3.15 |
3.3 |
3.45 |
| Supply Current |
mA |
|
|
600 |
| Bit Rate for Tx |
Gbps |
2.488 |
| Bit Rate for Rx |
Gbps |
1.244 |
Characteristics
All performance is specified at whole working temperature and conditions
| Parameter |
Unit |
Min. |
Typical |
Max. |
| Transmitter |
| TX Central Wavelength |
nm |
1480 |
1490 |
1500 |
| Spectral Width (-20dB) |
nm |
|
|
1 |
| Side Mode Suppression Ratio (SMSR) |
dB |
30 |
|
|
| Mean Launched Power |
dBm |
7 |
|
9 |
| Mean Launched Power (TX Off) |
dBm |
|
|
-45 |
| Extinction Ratio |
dB |
8.2 |
|
|
| Optical Return Loss Tolerance |
dB |
-12 |
|
|
| Transmitter and dispersion Penalty |
dB |
|
|
1 |
| Transmitter Mask(PRBS223-1@2.488G) |
Compliant With ITU-T G.984.2 |
| Receiver |
| Receive Wavelength |
nm |
1290 |
1310 |
1330 |
Sensitivity
(PRBS223-1@1.244G,ER=10,BER<10-10) |
dBm |
|
|
-30 |
Overload
(PRBS223-1@1.244G,ER=10,BER<10-10) |
dBm |
-12 |
|
|
| Receiver Burst Mode Dynamic Range |
dB |
15 |
|
|
| Damage Threshold for Receiver |
dBm |
5 |
|
|
| SD Assert Level |
dBm |
|
|
-33 |
| SD De-assert Level |
dBm |
-45 |
|
|
| SD Hysteresis |
dB |
0.5 |
|
6 |
| WDM Filter isolation to 1550nm |
dB |
38 |
|
|
| WDM Filter isolation to 1650nm |
dB |
35 |
|
|
| Electrical Interface Characteristics |
| Data Input Swing Differential/TX |
mV |
200 |
- |
2000 |
| Data Output Swing Differential/RX |
mV |
400 |
|
1600 |
| Date Differential Impedance |
Ω |
90 |
100 |
110 |
| LVTTL Output High |
V |
2.4 |
|
Vcc |
| LVTTL Output Low |
V |
0 |
|
0.4 |
| LVTTL Input High |
V |
2.0 |
|
Vcc+0.3 |
| LVTTL Input Low |
V |
0 |
|
0.8 |
| Timing Characteristics |
| Guard Time (Tg) |
ns |
25.6 |
|
|
| Reset Pulse Width (Tr) |
ns |
|
|
12.8 |
| Reset Delay (Trd) |
ns |
|
|
12.8 |
| Receiver Preamble Time (Tp) |
ns |
|
|
140 |
| SD Assert Time (TSDA) |
ns |
|
|
100 |
| SD De-assert Time (TSDD) |
ns |
|
|
12.8 |
| RSSI Trigger Delay (Ttd) |
ns |
25 |
|
|
| RSSI Trigger Pulse Width (Tw) |
ns |
500 |
|
|
| Internal I2C Delay (Twait) |
us |
|
|
500
|
