RoHS compliant
1310 nm Multi-mode Transceiver, 2km
Small Form Pluggable (SFP), with Diagnostic Monitoring
1.0625Gbd Fiber Channel/1.25 Gigabit EthernetFeatures
 RoHS compliant
 Compliant with SFF8472 diagnostic monitoringinterface Duplex LC connector
 Differential LVPECL inputs and outputs
 Single power supply 3.3V
 TTL signal detect indicator Hot Pluggable Class 1 laser product complies with EN 60825-1

Ordering Information
PART NUMBER

INPUT/OUTPUT

SIGNAL DETECTVOLTAGE

TEMPERATURE

GD1310-SFP-LC.M2

AC/AC

TTL

3.3V

0C to 70  C

GD1310-SFP-LC.M2(WT)

AC/AC

TTL

3.3V

-40 C to 85 C

Note: The guarantee transmit distance is as below,
Multimode 62.5/125 Corning fiber: 2km,
Multimode 50/125 Corning fiber: 1km,

Diagnostics
Parameter

Range

Accuracy

Unit

Temperature-40 to 95±3oVoltage

0 to VCC± 0.1

V

Bias Current

0 to 120±5mA

TX Power-11 to +1± 3 dBdBm

RX Power-19 to –3± 3 dBdBm

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Calibration

CWebsite: www.dci.jp

External

RoHS compliant
1310 nm Multi-mode Transceiver, 2kmSmall Form Pluggable (SFP), with Diagnostic Monitoring
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

Absolute Maximum Ratings
PARAMETERSYMBOLMIN

MAXUNITSNOTEStorage TemperatureTS4085

CSupply Voltage

Vcc

0.5

4.0

V

Input Voltage

VIN

0.5

Vcc

V

Output Current

Io

---

50mA

Operating Current

IOP---

400mA

SYMBOL

MIN

MAX

UNITS

NOTE

070

C

LM38-C3S-TC-N-DD

-4085

C

LM38-C3S-TI-N-DD

Recommended Operating Conditions
PARAMETER
Case Operating TemperatureTC

Supply Voltage

Vcc

3.1

3.5

V

Supply Current

ITX + IRX---250mA

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RoHS compliant
1310 nm Multi-mode Transceiver, 2km
Small Form Pluggable (SFP), with Diagnostic Monitoring
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

Transmitter Electro-optical Characteristics
Vcc = 3.1 V to 3.5 V, TC = 0 C to 70 C (-40 C to 85 C)
PARAMETER
Output Optical Power50/125 or 62.5/125 m fiber

SYMBOLMIN

TYP.

MAXUNITS

NOTE

Pout

-9----1dBm

Average

Extinction Ratio

ER9------dBCenter WavelengthC12701310

1355nmSpectral Width (RMS)------

4nm

Rise/Fall Time, (2080%)

Tr , f------

260

ps

Total Jitter

TJ------

227ps

Output Eye

Compliant with IEEE802.3z

Max. Pout TX-DISABLE Asserted

POFF------

45dBmDifferential Input Voltage

VDI FF

0.4

---

2.0

VPage 3 of 10
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RoHS compliant
1310 nm Multi-mode Transceiver, 2km
Small Form Pluggable (SFP), with Diagnostic Monitoring
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

Receiver Electro-optical Characteristics
Vcc = 3.1 V to 3.5 V, TC = 0 C to 70 C (-40 C to 85 C)
PARAMETERSYMBOLMIN

TYP.

MAXUNITS

NOTE

Optical Input Power-maximum

PI N

1---

---dBm

BER < 1012

Optical Input Power-minimum(Sensitivity)

PI N------

19dBm

BER < 1012

Operating Center Wavelength

C

1260

---

1610

nm

Optical Return Loss

ORL

12---

---

dB

Signal Detect-Asserted

PA---

---

19dBmSignal Detect-DeassertedPD35------dBmDifferential Output Voltage

VDI FF

0.5

---

1.2

VT r, f---

---

0.35

ns

RX_LOS L0---0.5

V

RX_LOS H

2.4---VCC

V

Data Output Rise, Fall Time
(2080%)Receiver Loss of Signal Output
Voltage-Low
Receiver Loss of Signal Output
Voltage-High

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RoHS compliant
1310 nm Multi-mode Transceiver, 2km
Small Form Pluggable (SFP), with Diagnostic Monitoring
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

Block Diagram of Transceiver

ELECTRICAL SUBASSEMBLY
DATA
DATA/

LD Driver&Fault Sense

LASER

TX_DISABLE
TX_FAULTOPTICALSUBASSEMBLIES

(0)
(1)

MOD_DEF

DUPLEX SCRECEPTACLE(2)

DATA
DATA/

POST-Amp&LOS Detect

RREAMPLIFIERICPhoto
DiodeRX_LOSTOP VIEW (Label side)

Transmitter Section
The transmitter section consists of a 1310 nm InGaAsP laser in an eye safe optical subassembly (OSA) which mates to the fiber
cable. The laser OSA is driven by a LD driver IC which converts differential input LVPECL logic signals into an analog laser
driving current.
TX_DISABLE
The TX_DISABLE signal is high (TTL logic “1”) to turn off the laser output. The laser will turn on when TX_DISABLE is low(TTL logic “0”).
Receiver Section
The receiver utilizes an InGaAs PIN photodiode mounted together with a trans-impedance preamplifier IC in an OSA. This OSA
is connected to a circuit providing post-amplification quantization, and optical signal detection.
Receive Loss (RX_LOS)The RX_LOS is high (logic “1”) when there is no incoming light from the companion transceiver. This signal is normally used by
the system for the diagnostic purpose. The signal is operated in LVTTL level.

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RoHS compliant
1310 nm Multi-mode Transceiver, 2km
Small Form Pluggable (SFP), with Diagnostic Monitoring
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

Dimensions

DIMENSIONS ARE IN MILLIMETERSALL DIMENSIONS ARE 0.2mm UNLESS OTHERWISE SPECIFIED
Unit: mm

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RoHS compliant
1310 nm Multi-mode Transceiver, 2km
Small Form Pluggable (SFP), with Diagnostic Monitoring
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

SFP host board mechanical layout

XYS XYA
1

LX A S
1PIN1

LX A SLEGEND

AS B S

1. PADS AND VIAS ARE CHASSIS GROUND
2. THROUGH HOLES, PLATING OPTIONAL
3. HATCHED AREA DENOTES COMPONENTAND TRACE KEEPOUT(EXCEPT CHASSISGROUND)
4.AREA DENOTES COMPONENT KEEPOUT(TRACES ALLOWED)PIN1DIMENSIONS ARE IN MILLIMETERSA S B S
AS B S

Unit: mm

Page 7 of 10
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RoHS compliant
1310 nm Multi-mode Transceiver, 2km
Small Form Pluggable (SFP), with Diagnostic Monitoring
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

Assembly drawing
1.7±0.93.5±0.3
41.73±0.5
PCB15.25±0.1

10.4±0.1

11.0 REF.

9.8 MAXCAGE ASSEMBLY

0.4±0.1 BELOW PCB

15.0 MAX

BEZEL

16.25±0.1
MSA-SPECIFIED BEZELPCBDIMENSIONS ARE IN MILLIMETERS

Unit: mm

Page 8 of 10
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RoHS compliant
1310 nm Multi-mode Transceiver, 2km
Small Form Pluggable (SFP), with Diagnostic Monitoring
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

Pin Assignment
Pin-Out

Pin

PIN 11PIN 20

PIN 10PIN 1Signal Name

Description

12TGND
TX_FAULTTransmit GroundTransmit Fault

34

TX_DISABLE
MOD_DEF (2)Transmit Disable
SDA Serial Data Signal

567

MOD_DEF (1)
MOD_DEF (0)RATE SELECTSCL Serial Clock Signal
TTL Low
Open Circuit

89101112RX_LOS
RGND
RGND

Receiver Loss of Signal, TTL High, open collector
Receiver Ground
Receiver Ground
Receiver Ground
Receive Data Bar, Differential PECL, ac coupled

131415RX
RGND

161718

RGND
RX

VCCR
VCCTTGND

Receive Data, Differential PECL, ac coupled
Receiver Ground
Receiver Power Supply

TX

Transmitter Power Supply
Transmitter GroundTransmit Data, Differential PCEL, ac coupled

TX
TGND

Transmit Data Bar, Differential PCEL, ac coupled
Transmitter Ground

Page 9 of 10Version 1.2
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1920

RoHS compliant
1310 nm Multi-mode Transceiver, 2km
Small Form Pluggable (SFP), with Diagnostic Monitoring
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

Eye Safety MarkThe GD1310-SFP-LC.M2 multimode transceiver is aclass 1 laser product. It complies with EN 60825-1 andFDA 21 CFR 1040.10 and 1040.11. In order to meetlaser safety requirements the transceiver shall beoperated within the Absolute Maximum Ratings.

Required MarkClass 1 Laser ProductComplies with
21 CFR 1040.10 and 1040.11

CautionAll adjustments have been done at the factory before
the shipment of the devices. No maintenance and user
serviceable part is required. Tampering with andmodifying the performance of the device will result in
voided product warranty.
Note : All information contained in this document is subject to change without notice.

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