单击打开
2.5G DWDM 光模块
HC’HXSD-2Lxx41x transceivers include an PIN photo-detector diode and temperature stabilized DWDM DML transmitter. Digital diagnostic functions are available via an I2C.This module is designed for single mode fiber and operates at a nominal wavelength of 100GHz ITU Grid, C Band DWDM wavelength. Digital diagnostics functions are available via a 2-wire serial interface, as specified in SFF-8472.
The optical output can be disabled by a TTL logic high-level input of Tx Disable, and the system also can disable the module via I2C. Tx Fault is provided to indicate that degradation of the laser. Loss of signal (LOS) output is provided to indicate the loss of an input optical signal of receiver or the link status with partner. The system can also get the LOS (or Link)/Disable/Fault information via I2C register access.
Features
Up to 2.5Gb/s data links
DWDM DML laser transmitter and PIN photo-detector
100 GHz ITU channel spacing with integrated wavelength locker
Up to 40km on 9/125µm SMF
Hot-pluggable SFP footprint
Duplex LC/UPC type pluggable optical interface
Low power dissipation
RoHS compliant and lead-free
Support Digital Diagnostic Monitoring interface
Single +3.3V power supply
Compliant with SFF-8472
Metal enclosure, for lower EMI
Meet ESD requirements, resist 8KV direct contact voltage
Case operating temperature
Commercial: 0 ~ +70℃
Extended: -10 ~ +80℃
Industrial: -40 ~ +85℃
Applications
SONET/SDH networks
Gigabit Ethernet
C Band DWDM networks
1xFiber /2xFiber Channel
Mechanical Dimensions
Absolute Maximum Ratings
|
|
Symbol |
Min |
Max |
Unit |
Notes |
|
Storage Temperature |
TS |
-40 |
85 |
oC |
|
|
Power Supply Voltage |
VCC |
-0.5 |
3.6 |
V |
|
|
Relative Humidity (non-condensation) |
RH |
5 |
95 |
% |
|
|
Damage Threshold |
THd |
0 |
|
dBm |
|
Recommended Operating Conditions and Power Supply Requirements
|
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
Notes |
|
Operating Case Temperature |
TOP |
0 |
|
70 |
oC |
commercial |
|
-10 |
|
80 |
extended |
|||
|
-40 |
|
85 |
industrial |
|||
|
Power Supply Voltage |
VCC |
3.135 |
3.3 |
3.465 |
V |
|
|
Data Rate |
|
|
2.5 |
|
Gb/s |
|
|
Control Input Voltage High |
|
2 |
|
Vcc |
V |
|
|
Control Input Voltage Low |
|
0 |
|
0.8 |
V |
|
|
Link Distance (SMF) |
D |
|
|
40 |
km |
9/125um |
Specification of Transmitter Electrical Characteristics
|
Parameter |
Symbol |
Min. |
Typical |
Max |
Unit |
Notes |
|
|
Power Consumption |
|
|
|
1.0 |
W |
commercial |
|
|
|
|
|
1.5 |
Industrial |
|||
|
Supply Current |
Icc |
|
|
300 |
mA |
commercial |
|
|
|
|
450 |
Industrial |
||||
|
|
|||||||
|
Single-ended Input Voltage Tolerance |
|
-0.3 |
|
4.0 |
V |
|
|
|
Differential Input Voltage Swing |
Vin,pp |
200 |
|
2400 |
mVpp |
|
|
|
Differential Input Impedance |
Zin |
90 |
100 |
110 |
Ohm |
|
|
|
Transmit Disable Assert Time |
|
|
|
5 |
us |
|
|
|
Transmit Disable Voltage |
Vdis |
Vcc-1.3 |
|
Vcc |
V |
|
|
|
Transmit Enable Voltage |
Ven |
Vee-0.3 |
|
0.8 |
V |
|
|
|
Receiver |
|||||||
|
Differential Output Voltage Swing |
Vout,pp |
500 |
|
900 |
mVpp |
|
|
|
Differential Output Impedance |
Zout |
90 |
100 |
110 |
Ohm |
|
|
|
Data output rise/fall time |
Tr/Tf |
|
100 |
|
ps |
20% to 80% |
|
|
LOS Assert Voltage |
VlosH |
Vcc-1.3 |
|
Vcc |
V |
|
|
|
LOS De-assert Voltage |
VlosL |
Vee-0.3 |
|
0.8 |
V |
|
|
Optical Characteristics
|
Parameter |
Symbol |
Min. |
Typical |
Max |
Unit |
Notes |
|
Transmitter |
||||||
|
Optical Wavelength |
λC |
λc -0.1 |
|
λc +0.1 |
nm |
1 |
|
Center Wavelength Spacing |
|
|
100 |
|
GHz |
|
|
Spectrum Bandwidth(RMS) |
σ |
|
|
1 |
nm |
|
|
Side Mode Suppression Ratio |
SMSR |
30 |
|
|
dB |
|
|
Average Optical Power |
PAVG |
-2 |
|
3 |
dBm |
2 |
|
Optical Extinction Ratio |
ER |
8.2 |
|
|
dB |
|
|
Transmitter OFF Output Power |
POff |
|
|
-45 |
dBm |
|
|
Transmitter Eye Mask |
Compliant with G.957(class 1 laser safety) |
|
||||
|
Receiver |
||||||
|
Center Wavelength |
λC |
1270 |
|
1610 |
nm |
|
|
Receiver Sensitivity (Average Power) |
Sen. |
|
|
-19 |
dBm |
3 |
|
Input Saturation Power (overload) |
Psat |
0 |
|
|
dBm |
|
|
LOS Assert |
LOSA |
-36 |
|
|
dB |
4 |
|
LOS De-assert |
LOSD |
|
|
-20 |
dBm |
4 |
|
LOS Hysteresis |
LOSH |
0.5 |
2 |
6 |
dBm |
|
The following optical characteristics are defined over the Recommended Operating Environment unless otherwise specified.
Notes:
1. λc refer to wavelength selection, and corresponds to approximately 0.8 nm
2. Measure at 2^23-1 NRZ PRBS pattern
3. Measured with Light source 1563.86~1528.77nm, ER=8.2dB; BER =<10^-12 @PRBS=2^23-1 NRZ
4. When LOS de-asserted, the RX data+/- output is High-level (fixed).
Digital Diagnostic Functions
|
Parameter |
Symbol |
Min. |
Max |
Unit |
Notes |
|
Temperature monitor |
DMI _ Temp |
-3 |
3 |
degC |
Over operating temp |
|
Supply voltage monitor |
DMI _ VCC |
-0.15 |
0.15 |
V |
Full operating range |
|
RX power monitor |
DMI _ RX |
-3 |
3 |
dB |
|
|
Bias current monitor |
DMI _ bias |
-10% |
10% |
mA |
|
|
TX power monitor |
DMI _ TX |
-3 |
3 |
dB |
|
