SFP Series
DB1310-SFP-SC.S40
DB1550-SFP-SC.S40
Single-Mode 155Mbps
SC Single-Fiber SFP Transceiver RoHS6
CompliantFeatures◆

Support 155Mbps Data Links◆

A type: 1310nm FP TX / 1550nm RX B
type: 1550nm DFB TX / 1310nm RX◆

40km with 9/125 µm SMF

Applications◆

Single 3.3V Power Supply and TTL Logic Interface◆

SONET OC-3 / SDH STM-1◆

Hot-Pluggable SFP Footprint SC Connector Interface◆

WDM Fast Ethernet Links◆

Class 1 FDA and IEC60825-1 Laser Safety
Compliant◆

Other Optical Links◆

Operating Case TemperatureStandard: 0℃~+70℃
Industrial: -40℃~+85℃◆

Compliant with SFP MSA Specification◆

Compliant with Digital Diagnostic Monitor Interface

Ordering information
Part No.

Data Rate

WavelengthInterface

Temp.

DDMI

DB1310-SFP-SC.S40
DB1550-SFP-SC.S40

100M~155Mbps

1310nmSC

Standard

100M~155Mbps

1550nmSC

Standard

YES
YES

DB1310-SFP-SC.S40(WT)
DB1550-SFP-SC.S40(WT)

100M~155Mbps

1310nmSC

Industrial

100M~155Mbps

1550nmSC

Industrial

Data Controls Inc.
Page 1 of 11

YES
YES

V4.d

SFP Series
Regulatory Compliance*Note2
Product Certificate

Certificate Number

Applicable Standard
EN 60950-1:2006+A11+A1+A12+A2

þ
þ

TUV

R50135086

EN 60825-1:2014

þþ

EN 60825-2:2004+A1+A2

þþ

UL 60950-1

UL

E317337

EMC CEAE 50285865 0001

FCC
FDA

WTF14F0514417E
/

ROHS

/

CSA C22.2 No. 60950-1-07
EN 55022:2010
EN 55024:2010
47 CFR PART 15 OCT., 2013
CDRH 1040.10
2011/65/EU

Note2: The above certificate number updated to June 2014, because some certificate will be updated every year, suchas FDA and ROHS. For the latest certification information, please check with Data Controls Inc.

Product Description
The DB1XX0-SFP-SC.S40 series is small form factor pluggable module for IEEE 802.3ah 100BASEBX40 and OC-3/STM-1 SONET/SDH single fiber applications by using 1310 nm/1550nm transmitter and1550 nm/1310nm receiver. It is with the SFP 20-pin connector to allow hot plug capability.
The transmitter section uses a multiple quantum well A type / B type laser and is a class 1 laser compliant
according to International Safety Standard IEC 60825. The receiver section uses an integrated B type/
A type detector preamplifier (IDP) mounted in an optical header and a limiting post-amplifier IC.
The DB1XX0-SFP-SC.S40 series are designed to be compliant with SFF-8472 Multi-source
Agreement (MSA).

Absolute Maximum Ratings
Parameter

Symbol

Min.

Max.

Unit

Storage Temperature

Ts

-40

+85

°C

Supply Voltage

Vcc

-0.5

3.6

V

-

95

%

Operating Relative Humidity*Exceeding any one of these values may destroy the device immediately.

Recommended Operating Conditions
Parameter

Symbol

Min.
0

+70

-40

+85

Power Supply Voltage

DB1XX0-SFPSC.S40
DB1XX0-SFPSC.S40(WT)
Vcc

Power Supply Current

Icc

Operating Case
Temperature

Date Rate

Tc

3.15

Typical

3.3

Max.

Unit
°C

3.45

V

300

mA

OC-3

155

Mbps

100M

100

Mbps

Data Controls Inc.
Page 2 of 11

V4.d

SFP Series
Performance Specifications - ElectricalParameter
LVPECL
Inputs(Differential)
Input Impedance(Differential)
TX_DisTX_FAULT

SymbolMin.
Typ.
Transmitter

Max

Unit

Notes

Vin

400

2000

mVpp

AC coupled
inputs*(note5)

Zin

85

115

ohms

100

Disable2

Vcc+0.3

Enable

0

0.8

Fault

2

Vcc+0.3

Normal0

0.5

Rin > 100
kohms @ DC

V
V

Receiver
LVPECL Outputs(Differential)
Output Impedance(Differential)
RX_LOS

Vout

400

Zout

85

2000

mVpp

115

ohms

100

LOS

2

Vcc+0.3

V

Normal0

0.8

V

MOD_DEF ( 0:2 )

VoH

2.5

VoL

0

V
0.5

V

AC coupled
outputs*(note5)

With Serial ID

Optical and Electrical Characteristics(DB1310-SFP-SC.S40, 1310nm FP and PIN, 40km)
Parameter

Symbol9µm Core Diameter SMF
Data Rate

L

Min.

Typical

Max.

40
155

Unit
km
Mbps

Transmitter
Center Wavelength
Spectral Width (RMS)
Average Output Power*(note3)

λC
Δλ
Pout

1260

Extinction Ratio*(note4)

ER

10

Rise/Fall Time(20%～80%)

tr/tf

Output Optical Eye*(note4)

1310

-5

1360
3
0

nm
nm
dBm
dB

2

ns

IUT-T G.957 Compliant*(note7)

TX_Disable Assert Time

t_off

10

us

Pout@TX Disable Asserted

Pout

-45

dBm

1580
-34

nm
dBm
dBm
dBm
dBm
dB

ReceiverCenter Wavelength
Receiver Sensitivity*(note6)
Receiver Overload
LOS De-Assert
LOS Assert
LOS Hysteresis*(note8)

λC
Pmin
Pmax
LOSD
LOSA

1500

1550

0
-35
-45
0.5

Data Controls Inc.
Page 3 of 11

V4.d

SFP Series(DB1550-SFP-SC.S40, 1550nm DFB and PIN, 40km)
Parameter

Symbol50µm Core Diameter SMF

L

Min.

TypicalData Rate

Max.

Unit

40

km

155

Mbps

Transmitter
Center Wavelength

λC

Spectral Width (-20dB)

ΔλSide Mode Suppression Ratio SMSR

1500
30

Average Output Power*(note3)

Pout

-5

Extinction Ratio*(note4)

ER

10

Rise/Fall Time(20%～80%)

tr/tf

Output Optical Eye*(note4)

1550
-

1580

nm

1

nm

-

dB

0

dBm
dB

2

ns

IUT-T G.957 Compliant*(note7)

TX_Disable Assert Time

t_off

10

us

Pout@TX Disable Asserted

Pout

-45

dBm

1360

nm

ReceiverCenter Wavelength

λC

1260

Receiver Overload

Pmax

0

1310

dBm

Receiver Sensitivity*(note6)

Pmin

-34

dBm

LOS De-Assert

LOSD

-35

dBm

LOS Assert

LOSA

LOS Hysteresis*(note8)

-45

dBm

0.5

dB

Note3: Output power is power coupled into a 9/125μm single-mode fiber. Note4:
Filtered, measured with a PRBS 223-1 test pattern @155Mbps Note5: LVPECL
logic, internally AC coupled.
Note6: Minimum average optical power at which the BER is less than 1E-10 or lower. Measured with a 223-1 NRZ PRBS and
ER=9 dB.

Note7: Eye Pattern Mask

Note8: LOS Hysteresis

Data Controls Inc.
Page 4 of 9

V4.d

SFP Series
Functional Description of Transceiver

SFP Transceiver Electrical Pad Layout

Data Controls Inc.
Page 5 of 9

V4.d

SFP Series
Pin Function Definitions
Pin
Num.

Name

Function

Plug
Seq.

Notes

1

VeeT

Transmitter Ground

1

5)

2

TX Fault

3

1)

3

TX Disable

Transmitter Disable

34

MOD-DEF2

Module Definition 2

33) Data line for Serial ID.

5

MOD-DEF1

Module Definition 1

33) Clock line for Serial ID.

6

MOD-DEF0

Module Definition 0

3

7Rate SelectNot Connect3

Function not available

8

LOS

Loss of Signal

3

4)

9

VeeR

Receiver Ground

1

5)

10

VeeR

Receiver Ground

1

5)

11

VeeR

Receiver Ground

1

5)

12

RD-

Inv. Received Data Out

3

6)

13

RD+

Received Data Out

3

6)

14

VeeR

Receiver Ground

1

5)

15

VccR

Receiver Power27) 3.3 ± 5%

Transmitter Fault
Indication

2) Module disables on high or
open3) Grounded within themodule.

16

VccT

Transmitter Power27) 3.3 ± 5%

17

VeeT

Transmitter Ground

1

5)

18

TD+

Transmit Data In

3

8)

19

TD-

Inv. Transmit Data In

3

8)

20

VeeT

Transmitter Ground1

5)

Notes:
1) TX Fault is an open collector/drain output, which should be pulled up with a 4.7K – 10KΩ resistor
on the host board. Pull up voltage between 2.0V and VccT, R+0.3V. When high, output indicates a laser
fault of some kind. Low indicates normal operation. In the low state, the output will be pulled to < 0.8V.
2) TX disable is an input that is used to shut down the transmitter optical output. It is pulled up within themodule with a 4.7 – 10 KΩ resistor. Its states are:
Low (0 – 0.8V): Transmitter on (>0.8, <2.0V): UndefinedHigh (2.0 – 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 –10K□□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 ModDef 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
Data Controls Inc.
Page 6 of 9

V4.d

SFP Series4) LOS (Loss of Signal) is an open collector/drain output, which should be pulled up with a 4.7K – 10KΩ
resistor. Pull up voltage between 2.0V and VccT, R+0.3V. When high, this output indicates the received
optical power is below the worst-case receiver sensitivity (as defined by the standard in use). Low
indicates normal operation. In the low state, the output will be pulled to < 0.8V.
5) VeeR and VeeT may be internally connected within the SFP module.
6) RD-/+: These are the differential receiver outputs. They are AC coupled 100Ω differential lines whichshould be terminated with 100Ω (differential) at the user SERDES. The AC coupling is done inside themodule and is thus not required on the host board. The voltage swing on these lines will be between 400
and 2000 mV differential (200 –1000mV single ended) when properly terminated.
7) VccR and VccT are the receiver and transmitter power supplies. They are defined as 3.3V ±5% at the
SFP connector pin. Maximum supply current is 300mA. Recommended host board power supply filtering
is shown below. Inductors with DC resistance of less than 1 ohm should be used in order to maintain therequired voltage at the SFP input pin with 3.3V supply voltage. When the recommended supply-filtering
network is used, hot plugging of the SFP transceiver module will result in an inrush current of no morethan 30mA greater than the steady state value. VccR and VccT may be internally connected within the
SFP transceiver module.
8) TD-/+: These are the differential transmitter inputs. They are AC-coupled, differential lines with 100Ωdifferential termination inside the module. The AC coupling is done inside the module and is thus not
required on the host board. The inputs will accept differential swings of 400 – 2000mV (200 – 1000mV
single-ended).

EEPROM
The serial interface uses the 2-wire serial CMOS EEPROM protocol defined for the ATMEL
AT24C02/04 family of components. When the serial protocol is activated, the host generates the serial
clock signal (SCL). The positive edge clocks data into those segments of the EEPROM thatare not write protected within the SFP transceiver. The negative edge clocks data from the SFP
transceiver. The serial data signal (SDA) is bi-directional for serial data transfer. The host uses SDA in
conjunction with SCL to mark the start and end of serial protocol activation. The memories are organized
as a series of 8-bit data words that can be addressed individually or sequentially.
The Module provides diagnostic information about the present operating conditions. The transceiver
generates this diagnostic data by digitization of internal analog signals. Calibration and alarm/warning
threshold data is written during device manufacture. Received power monitoring, transmitted powermonitoring, bias current monitoring, supply voltage monitoring and temperature monitoring all are
implemented. If the module is defined as external calibrated, the diagnostic data are raw A/D values andmust be converted to real world units using calibration constants stored in EEPROM locations 56 – 95 at
wire serial bus address A2H. The digital diagnostic memory map specific data field define asfollowing .For detail EEPROM information, please refer to the related document of SFF 8472 Rev 9.3.

Data Controls Inc.
Page 7 of 9

V4.d

SFP Series

Recommend Circuit Schematic

Mechanical Specifications

SC

Data Controls Inc.
Page 8 of 9

V4.d

SFP Series
Laser Emission Data
Wavelength

1310nmTotal output power (as defined by FDA: 7mm aperture at 20cm distance)<0.195mW

Total output power (as defined by IEC: 7mm aperture at 10cm distance)<15.6mW

Beam divergence

12.5°

Wavelength

1550nmTotal output power (as defined by FDA: 7mm aperture at 20cm distance)<0.79mW

Total output power (as defined by IEC: 7mm aperture at 10cm distance)<10mW

Beam divergence12.5°

Laser Emission

Obtaining Document
You can visit our website:http://www.dci.jp
Or contact Data Controls Inc. listed at the end of the documentation to get the latest document.

Revision History
Revision History

Release Date

V1.2

Released.

July 11, 2007

V4.d

Update photo./Optical Output

March, 2018

Revision

Notice:Data Controls Inc reserves the right to make changes to or discontinue any optical link product or service
identified in this publication, without notice, in order to improve design and/or performance. Applications
that are described herein for any of the optical link products are for illustrative purposes only. Data
Controls Inc makes no representation or warranty that such applications will be suitable for the specified
use without further testing or modification.

Contact:
E-mail: sales@dci.jp
Web: https://www.dci.jp

Data Controls Inc.
Page 9 of 9V4.d