155Mbps CWDM SFP Optical Transceiver, 80km Reach
Features
Data-rate of 155Mbps operation
9 CWDM DFB wavelengths laser and PIN photodetector for 80km transmission
Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
Digital Diagnostic Monitoring:Internal Calibration or External Calibration
Compatible with RoHS
+3.3V single power supply
Operating case temperature:Standard : 0 to +70°C
Applications
Gigabit Ethernet
Fiber Channel
Switch to Switch interface
Switched backplane applications
Router/Server interface
Other optical transmission systems
Description
The SFP transceivers are high performance, cost effective modules supporting data-rate of 155Mbps and 80km
transmission distance with SMF.
The transceiver consists of three sections: an uncooled CWDM DFB laser transmitter, a PIN photodiode integrated with
a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements.
The transceivers are compatible with SFP Multi-Source Agreement (MSA) and SFF-8472. For further information,
please refer to SFP MSA.
Absolute Maximum Ratings
Table 1 - Absolute Maximum Ratings
Parameter |
Symbol |
Min |
Max |
Unit |
Supply Voltage |
Vcc |
-0.5 |
4.5 |
V |
Storage Temperature |
Ts |
-40 |
+85 |
°C |
Operating Humidity |
- |
5 |
95 |
% |
Recommended Operating Conditions
Table 2 - Recommended Operating Conditions
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
Operating Case Temperature |
Standard |
Tc |
0 |
|
+70 |
°C |
Power Supply Voltage |
Vcc |
3.13 |
3.3 |
3.47 |
V |
Power Supply Current |
Icc |
|
|
300 |
mA |
Data Rate |
|
|
155 |
|
Mbps |
GPC-xx03-08CD
See table3 below for "xx" values
Table3 -λC Wavelength Guide
λC Wavelength Guide |
Code |
λC |
Unit |
Code |
λC |
Unit |
45 |
1450 |
nm |
55 |
1550 |
nm |
47 |
1470 |
nm |
57 |
1570 |
nm |
49 |
1490 |
nm |
59 |
1590 |
nm |
51 |
1510 |
nm |
61 |
1610 |
nm |
53 |
1530 |
nm |
|
|
|
Optical and Electrical Characteristics
GPC-xx03-08CD: (CWDM and PIN, 80km Reach)
Table 4 - Optical and Electrical Characteristics
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
Notes |
Transmitter |
Centre Wavelength |
λc |
λc-6.5 |
λc |
λc+6.5 |
nm |
|
Spectral Width (-20dB) |
λ |
|
|
1 |
nm |
|
Side Mode Suppression Ratio |
SMSR |
30 |
|
|
dB |
|
Average Output Power |
Pout |
-5 |
|
0 |
dBm |
1 |
Extinction Ratio |
ER |
10 |
|
|
dB |
|
Jitter Generation (RMS) |
|
|
|
0.01 |
UI |
|
Jitter Generation (PK-PK) |
|
|
|
0.1 |
UI |
|
Output Optical Eye |
Compliant Telcordia GR-253-CORE and ITU-T G.957 |
|
Optical Rise/Fall Time (20%~80%) |
tr/tf |
|
|
0.26 |
ns |
|
Data Input Swing Differential |
VIN |
300 |
|
1860 |
mV |
2 |
Input Differential Impedance |
ZIN |
90 |
100 |
110 |
Ω |
|
TX Disable |
Disable |
|
2.0 |
|
Vcc |
V |
|
Enable |
|
0 |
|
0.8 |
V |
|
TX Fault |
Fault |
|
2.0 |
|
Vcc |
V |
|
Normal |
|
0 |
|
0.8 |
V |
|
Receiver |
Centre Wavelength |
λc |
1260 |
|
1620 |
nm |
|
Receiver Sensitivity |
|
|
|
-35 |
dBm |
3 |
Receiver Overload |
|
-10 |
|
|
dBm |
3 |
LOS De-Assert |
LOSD |
|
|
-38 |
dBm |
|
LOS Assert |
LOSA |
-45 |
|
|
dBm |
|
LOS Hysteresis |
|
1 |
|
4 |
dB |
|
Data Output Swing Differential |
Vout |
370 |
|
1800 |
mV |
4 |
LOS |
High |
2.0 |
|
Vcc |
V |
|
Low |
0 |
|
0.8 |
V |
|
Notes:
1. The optical power is launched into SMF.
2. PECL input, internally AC-coupled and terminated.
3. Measured with a PRBS 223-1 test pattern @155Mbps, BER ≤1×10-12.
4. Internally AC-coupled.
Timing and Electrical
Table 5 - Timing and Electrical
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
Tx Disable Negate Time |
t_on |
|
|
1 |
ms |
Tx Disable Assert Time |
t_off |
|
|
10 |
µs |
Time To Initialize, including Reset of Tx Fault |
t_init |
|
|
300 |
ms |
Tx Fault Assert Time |
t_fault |
|
|
100 |
µs |
Tx Disable To Reset |
t_reset |
10 |
|
|
µs |
LOS Assert Time |
t_loss_on |
|
|
100 |
µs |
LOS De-assert Time |
t_loss_off |
|
|
100 |
µs |
Serial ID Clock Rate |
f_serial_clock |
|
|
400 |
KHz |
MOD_DEF (0:2)-High |
VH |
2 |
|
Vcc |
V |
MOD_DEF (0:2)-Low |
VL |
|
|
0.8 |
V |
Diagnostics
Table 6 - Diagnostics Specification
Parameter |
Range |
Unit |
Accuracy |
Calibration |
Temperature |
0 to +70 |
°C |
±3°C |
Internal / External |
Voltage |
3.0 to 3.6 |
V |
±3% |
Internal / External |
Bias Current |
0 to 100 |
mA |
±10% |
Internal / External |
TX Power |
0 to +5 |
dBm |
±3dB |
Internal / External |
RX Power |
-33 to -9 |
dBm |
±3dB |
Internal / External |
Pin Descriptions
Pin |
Signal Name |
Description |
Plug Seq. |
Notes |
1 |
VEET |
Transmitter Ground |
1 |
|
2 |
TX FAULT |
Transmitter Fault Indication |
3 |
Note 1 |
3 |
TX DISABLE |
Transmitter Disable |
3 |
Note 2 |
4 |
MOD_DEF(2) |
SDA Serial Data Signal |
3 |
Note 3 |
5 |
MOD_DEF(1) |
SCL Serial Clock Signal |
3 |
Note 3 |
6 |
MOD_DEF(0) |
TTL Low |
3 |
Note 3 |
7 |
Rate Select |
Not Connected |
3 |
|
8 |
LOS |
Loss of Signal |
3 |
Note 4 |
9 |
VEER |
Receiver ground |
1 |
|
10 |
VEER |
Receiver ground |
1 |
|
11 |
VEER |
Receiver ground |
1 |
|
12 |
RD- |
Inv. Received Data Out |
3 |
Note 5 |
13 |
RD+ |
Received Data Out |
3 |
Note 5 |
14 |
VEER |
Receiver ground |
1 |
|
15 |
VCCR |
Receiver Power Supply |
2 |
|
16 |
VCCT |
Transmitter Power Supply |
2 |
|
17 |
VEET |
Transmitter Ground |
1 |
|
18 |
TD+ |
Transmit Data In |
3 |
Note 6 |
19 |
TD- |
Inv. Transmit Data In |
3 |
Note 6 |
20 |
VEET |
Transmitter Ground |
1 |
|
Notes:
Plug Seq.: Pin engagement sequence during hot plugging.
1) TX Fault is an open collector output, which should be pulled up with a 4.7k~10kΩ resistor on the
host board to a voltage between 2.0V andVcc+0.3V. Logic 0 indicates normal operation; Logic 1 indicates a laser
fault of some kind. In the low state, the output will be pulled to less than 0.8V.
2) TX Disable is an input that is used to shut down the transmitter optical output.
It is pulled up within the module with a 4.7k~10kΩ resistor. Its states are:
Low (0 to 0.8V): Transmitter on
(>0.8V, < 2.0V): Undefined
High (2.0 to 3.465V): Transmitter Disabled
Open: Transmitter Disabled
3) Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a 4.7k~10kΩ resistor on
the host board. The pull-up
voltage shall be VccT or VccR.
Mod-Def 0 is grounded by the module to indicate that the module is present
Mod-Def 1 is the clock line of two wire serial interface for serial ID
Mod-Def 2 is the data line of two wire serial interface for serial ID
4) LOS is an open collector output, which should be pulled up with a 4.7k~10kΩ resistor. Pull up voltage
between 2.0V and Vcc+0.3V.
Logic 1 indicates loss of signal; Logic 0 indicates normal operation. In the low state, the output will be
pulled to less than 0.8V.
5) RD-/+: These are the differential receiver outputs. They are internally AC-coupled 100 differential lines
which should be terminated with
100Ω (differential) at the user SERDES.
6) TD-/+: These are the differential transmitter inputs. They are internally AC-coupled, differential lines
with 100Ω differential termination inside the module.
Ordering information
Part Number |
Product Description |
GPC-xx03-08CD |
CWDM 1450nm~1610nm, 155Mbps, 80km, 0ºC ~ +70ºC, With Digital Diagnostic Monitoring |