PRODUCT DESCRIPTION
The BXCS-Bxx12-20Dxx Small Form Factor Pluggable (SFP) transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA), The transceiver consists of four sections: the LD driver, the limiting amplifier, the 1310nm FP laser(the 1550nm DFB laser) and the PIN photo-detector. The module data link up to 20KM in 9/125um single mode fiber.
The optical output can be disabled by a TTL logic high-level input of Tx Disable. 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.
PRODUCT FEATURES
● Up to 1.25Gb/s data links
● FP laser transmitter for NFPB334F-LS20
● DFB laser transmitter for NFPB343D-LS20
● PIN photo-detector
● Up to 20KM on 9/125µm SMF
● Hot-pluggable SFP footprint
● BIDI LC/UPC type pluggable optical interface
● Low power dissipation
● Metal enclosure, for lower EMI
● RoHS compliant and lead-free
● Single +3.3V power supply
● Compliant with SFF-8472
● Case operating temperature
Commercial: 0°C to +70°C
Extended: -10°C to +80°C
Industrial: -40°C to +85°C
APPLICATIONS
● Switch to Switch Interface
● Gigabit Ethernet
● Switched Backplane Applications
● Router/Server Interface
Absolute Maximum Ratings
|
Parameter |
Symbol |
Min. |
Typ. |
Max. |
Unit |
Note |
|
Storage Temperature |
Ts |
-40 |
85 |
ºC |
||
|
Relative Humidity |
HA |
5 |
95 |
% |
||
|
Power Supply Voltage |
VCC |
-0.5 |
4 |
V |
||
|
Signal Input Voltage |
-0.3 |
Vcc+0.3 |
V |
|||
|
Receiver Damage Threshold |
5 |
dBm |
Recommended Operating Conditions
|
Parameter |
Symbol |
Min. |
Typ. |
Max. |
Unit |
Note |
|
Case Operating Temperature |
Tcase |
0 |
70 |
ºC |
BXCS-Bxx12-20D |
|
|
-10 |
80 |
BXCS-Bxx12-20DE |
||||
|
-40 |
85 |
BXCS-Bxx12-20DI |
||||
|
Power Supply Voltage |
VCC |
3.13 |
3.3 |
3.47 |
V |
|
|
Power Supply Current |
ICC |
280 |
mA |
|||
|
Power Supply Noise Rejection |
100 |
mVp-p |
100Hz to 1MHz |
|||
|
Data Rate |
1.25/1.25 |
Gbps |
TX Rate/RX Rate |
|||
|
Transmission Distance |
20 |
KM |
||||
|
Coupled Fiber |
Single mode fiber |
9/125um SMF |
||||
Ⅳ.Specification of Transmitter
|
Parameter |
Symbol |
Min. |
Typ. |
Max. |
Unit |
Note |
|
Average Output Power |
POUT |
-9 |
-3 |
dBm |
Note (1) |
|
|
Extinction Ratio |
ER |
9 |
dB |
|||
|
Center Wavelength |
λC |
1290 |
1310 |
1330 |
nm |
BXCS-B1312-20Dxx |
|
1430 |
1550 |
1570 |
BXCS-B1512-20Dxx |
|||
|
Spectrum Width (RMS) |
σ |
3.5 |
nm |
FP Laser (TX:1310nm) |
||
|
Side Mode Suppression Ratio |
SMSR |
30 |
dB |
DFB Laser (TX:1550nm) |
||
|
Spectrum Bandwidth(-20dB) |
σ |
1 |
nm |
|||
|
Transmitter OFF Output Power |
POff |
-45 |
dBm |
|||
|
Differential Line Input Impedance |
RIN |
90 |
100 |
110 |
Ohm |
|
|
Output Eye Mask |
Compliant with IEEE802.3 z (class 1 laser safety) |
Note (2) |
||||
Note (1): Measure at 2^7-1 NRZ PRBS pattern
Note (2): Transmitter eye mask definition
Specification of Receiver
|
Parameter |
Symbol |
Min. |
Typ. |
Max. |
Unit |
Note |
|
Input Optical Wavelength |
λIN |
1470 |
1550 |
1510 |
nm |
BXCS-B1312-20Dxx |
|
1290 |
1310 |
1330 |
BXCS-B1512-20Dxx |
|||
|
Receiver Sensitivity |
PIN |
-20 |
dBm |
Note (1) |
||
|
Input Saturation Power (Overload) |
PSAT |
-3 |
dBm |
|||
|
Los Of Signal Assert |
PA |
-35 |
dBm |
|||
|
Los Of Signal De-assert |
PD |
-22 |
dBm |
Note (2) |
||
|
LOS Hysteresis |
PA-PD |
0.5 |
2 |
6 |
dB |
Note (1): Measured with Light source 1550nm(1310nm), ER=9dB; BER =<10^-12 @PRBS=2^7-1 NRZ.
Note (2): When LOS de-asserted, the RX data+/- output is signal output.
Electrical Interface Characteristics
|
Parameter |
Symbol |
Min. |
Typ. |
Max. |
Unit |
Note |
|
Transmitter |
||||||
|
Total Supply Current |
ICC |
A |
mA |
Note (1) |
||
|
Transmitter Disable Input-High |
VDISH |
2 |
Vcc+0.3 |
V |
||
|
Transmitter Disable Input-Low |
VDISL |
0 |
0.8 |
V |
||
|
Transmitter Fault Input-High |
VTxFH |
2 |
Vcc+0.3 |
V |
||
|
Transmitter Fault Input-Low |
VTxFL |
0 |
0.8 |
V |
||
|
Receiver |
||||||
|
Total Supply Current |
ICC |
B |
mA |
Note (1) |
||
|
LOSS Output Voltage-High |
VLOSH |
2 |
Vcc+0.3 |
V |
LVTTL |
|
|
LOSS Output Voltage-Low |
VLOSL |
0 |
0.8 |
V |
||
Note (1): A (TX) + B (RX) = 280mA (Not include termination circuit)
Mechanical Specifications (Unit: mm)
Ordering information
|
Product part Number |
Data Rate (Gbps) |
Media |
Wavelength (nm) |
Transmission Distance(KM) |
Temperature Range（Tcase）（℃） |
|
|
BXCS-B1312-20D (BXCS-B1512-20D ) |
1.25 |
Single mode fiber |
1310/1550(1550/1310) |
20 |
0~70 |
commercial |
|
BXCS-B1312-20DE (BXCS-B1512-20DE) |
1.25 |
Single mode fiber |
1310/1550(1550/1310) |
20 |
-10~80 |
extended |
|
BXCS-B1312-20DI (BXCS-B1512-20DI) |
1.25 |
Single mode fiber |
1310/1550(1550/1310) |
20 |
-40~85 |
industrial |
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