Delta Electronics SFBD-1250B4Q1R User Manual
SFBD-1250B4Q1R
Small Form Factor Bi-Directional Transceiver
Module for Gigabit Ethernet
FEATURES
RoHS compliant
IEEE802.3ah Gigabit Ethernet compliant
SFF package with bi-directional SC
receptacle
Upstream 1.25Gbps transmitter with 1490nm
DFB Laser, and downstream 1.25Gbps
receiver with 1310nm PIN-TIA
Single +3.3V power supply
LVTTL Transmitter Enable input and Rx
Signal Detect output
Laser Class 1 Product which comply with the
requirements of IEC 60825-1 and IEC 60825-2
Description
The SFBD-1250xxxx series are 3.3V small
Form Factor Bi-Directional Transceiver Module
designed expressly for high-speed
communication applications that require rates of
up to 1.25Gbit/sec. It is compliant with the
Gigabit Ethernet standards, as well as the SFF
Multisource Agreement (MSA).
T he module consists 1490nm DFB laser,
InGaAs PIN, Preamplifier and WDM filter in a
high-integrated optical sub-assembly, and it is
contained in a standard SFF package with a
9/125um SC receptacle connector.
Application
IEEE 802.3ah 1000BASE-BX10-D
GE-Media Converter
Gigabit Ethernet P2P Optical Network
FTTx WDM Broadband Access
SFBD-1250B4Q1R data link up to 10km in
9/125um single mode fiber.
DELTA ELECTRONICS, INC.
1 Revision: S0
04/12/2007
www.deltaww.com
SFBD-1250B4Q1R
1. Absolute Maximum Ratings
Parameter Symbol Min. Typ. Max. Unit Note
Storage Temperature Ts -40 85 ºC
Storage Ambient Humidity HA 5 95 %
Power Supply Voltage VCC -0.3 4 V
Signal Input Voltage -0.3 Vcc+0.3 V
Receiver Damage Threshold +3 dBm
Lead Soldering Temperature T
Lead Soldering Time t
260 ºC
SOLD
10 sec
SOLD
2. Recommended Operating Conditions
Parameter Symbol Min. Typ. Max. Unit Note
Ambient Operating Temperature TA 0 70 ºC
Ambient Humidity HA 5 85 %
Power Supply Voltage VCC 3.13 3.3 3.47 V
Power Supply Current ICC 300 mA
Power Supply Noise Rejection 100 mVp-p
Data Rate
1.25
-100ppm
1.25
1.25
+100ppm
Gbps
Transmission Distance 10 km
Without air flow
Non-condensing
100Hz to 1MHz
3. Specification of Transmitter
Parameter Symbol Min. Typ. Max. Unit Note
Average Launched Power PO
Launched power (Peak.) PP
Extinction Ratio ER
Center Wavelength
Spectrum Width (-20dB)
λ
C
σ
Side Mode Suppression Ratio SMSR 30 dB
Transmitter OFF Output Power P
Off
Optical Rise/Fall Time tr/tf 260 ps Note (2)
Total Jitter tJ 227 ps Note (3)
Optical Return Loss Tolerance ORLT 12 dB
Relative Intensity Noise RIN12OMA -113 dB/Hz
Optical Transmitter Reflectance -6 dB
Transmitter and Dispersion Penalty TDP 3.3 dB
Output Eye Mask
{X1,X2,Y1,Y2,Y3}
Compliant with IEEE 802.3ah
{0.22,0.375,0.20,0.20,0.30}
Note (1). Launched power (avg.) is power coupled into a single mode fiber with master connector.
Note (2). These are unfiltered 20-80% values.
Note (3). Measure at 2
7
-1 NRZ PRBS pattern
DELTA ELECTRONICS, INC.
-9 -3
0
9
dBm Note (1)
dBm
dB
1480 1490 1500 nm DFB Laser
0.88 nm
-45
dBm
Note (5)
2 Revision: S0
04/12/2007
www.deltaww.com
N
N
SFBD-1250B4Q1R
Note (5). Transmitter eye mask definition
1+ Y 3
1
1-Y1
0.5
Y1
ormalized Amplitude
0
-Y2
X1 X2
ormalized Time
1-X2
1-X1
1
4. Specification of Receiver
Parameter Symbol Min. Typ. Max. Unit Note
Input Optical Wavelength
λ
IN
Receiver Sensitivity PIN
Input Saturation Power (Overload) P
SAT
Signal Detect -Assert Power PA -24 dBm
Signal Detect -Deassert Power PD -44 dBm Note (2)
Signal Detect Hysteresis PA-PD 0.5 2 5 dB
Data Output Rise/Fall time tr/tf 260 ps Note (3)
Optical Receiver Reflectance -12 dB Note (4)
Optical Isolation
1550 to 1560nm -33 dB
from External
Source
1640 to 1665nm -33 dB
Note (1). Measured with Light source 1490nm, ER=9dB; BER =<10
Note (2). When SD deasserted, the data output is Low-level (fixed)
Note (3). These are 20%~80% values.
Note (4). Measured at wavelength of 1310nm.
1260 1310 1360 nm PIN-PD
-23
dBm Note (1)
-3 dBm
-12
@PRBS=27-1 NRZ
5. Electrical Interface Characteristics
Parameter Symbol Min. Typ. Max. Unit Note
Transmitter
Total Supply Current ICC A mA Note (1)
Differential line input Impedance RIN 90 100 110 Ohm
Differential Data Input Swing VDT 400 1600 mV
Transmitter Disable Input-High V
Transmitter Disable Input-Low V
2 VCC V
DISH
0 0.8 V
DISL
Receiver
Total Supply Current ICC B mA Note (1)
Differential Data Output Swing VDR 400 800 1200 mV
Signal Detect Output Voltage-High V
Signal Detect Output Voltage-Low V
2 Vcc+0.3 V
LOSH
0 0.8 V
LOSL
3 Revision: S0
DELTA ELECTRONICS, INC.
www.deltaww.com
Note (2)
p-p
LVTTL
Note (2)
p-p
Note (3)
04/12/2007
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