RoHS compliant
1310 nm Single-mode Transceiver, 20dB margin
Small Form Pluggable (SFP), 3.3V
1.0625Gbd Fiber Channel/1.25 Gigabit EthernetFeatures


RoHS compliantCompliant with IEEE802.3z Gigabit EthernetStandard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.S40

AC/AC

TTL

3.3V0C to 70 C

GD1310-SFP-LC.S40(WT)

AC/AC

TTL

3.3V

Option:-40C to 85 C

Page 1 of 9
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RoHS compliant
1310 nm Single-mode Transceiver, 20dB margin
Small Form Pluggable (SFP), 3.3V
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

Absolute Maximum Ratings
PARAMETERSYMBOL

MIN

MAX

UNITS

NOTE

Storage TemperatureTS4085

C

Supply Voltage

Vcc

0.5

4.0V

Input Voltage

VIN0.5Vcc

V

Output Current

Io---50mA

Operating Current

IOP---400mA

SYMBOLMIN

MAXUNITS

NOTE

070

C

GD1310-SFP-LC.S40-4085

C

GD1310-SFP-LC.S40(WT)

Recommended Operating Conditions
PARAMETER
Case Operating TemperatureTC

Supply Voltage

Vcc

3.1

3.5

V

Supply Current

ITX + IRX

---

300mA

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

TYP.

MAX

UNITS

NOTE

4---+3dBm

Average

ER7------dB

Center WavelengthC128013101340

nm

Spectral Width (-20dB)

------

1nm

SMSR

30---

---dB

Rise/Fall Time, (2080%)

Tr, f---

---

260

ps

Relative Intensity NoiseRIN------

120dB/HzTotal Jitter

TJ---

---

227

ps

Output Optical Power
9/125 m fiber

Pout

Extinction Ratio

Side Mode Suppression Ratio

Output Eye

Compliant with IEEE802.3z

Max. Pout TX-DISABLE Asserted

POFF

---

---

45dBmDifferential Input Voltage

VDIFF

0.4

---

2.0

V

Page 2 of 9
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Website: http://www.dci.jp

RoHS compliant
1310 nm Single-mode Transceiver, 20dB margin
Small Form Pluggable (SFP), 3.3V
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-maximumPIN

1------dBm

BER < 1012

Optical Input Power-minimum(Sensitivity)

PIN----27

24dBm

BER < 1012

Operating Center Wavelength

C

1260

---

1610

nm

Optical Return Loss

ORL12------

dBSignal Detect-Asserted

PA------

24dBmSignal Detect-DeassertedPD35------dBm

Differential Output Voltage

VDIFF

0.5---

1.2VT r, f---

---

0.35

nsRX_LOSL

0---

0.5

VRX_LOSH

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

Page 3 of 9
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Website: http://www.dci.jp

RoHS compliant
1310 nm Single-mode Transceiver, 20dB margin
Small Form Pluggable (SFP), 3.3V
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)
(2)

MOD_DEF

DUPLEX SC
RECEPTACLE

DATA
DATA/

POST-Amp&LOS Detect

RREAMPLIFIERIC

RX_LOS

Photo
Diode

TOP 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 bythe system for the diagnostic purpose. The signal is operated in TTL level.

Page 4 of 9
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Website: http://www.dci.jp

RoHS compliant
1310 nm Single-mode Transceiver, 20dB margin
Small Form Pluggable (SFP), 3.3V
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

Dimensions

DIMENSIONS ARE IN MILLIMETERSALL DIMENSIONS ARE 0.2mm UNLESS OTHERWISE SPECIFIED

Unit: mm

Page 5 of 9
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RoHS compliant
1310 nm Single-mode Transceiver, 20dB margin
Small Form Pluggable (SFP), 3.3V
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

SFP host board mechanical layout
XYSXYA
1LX A S

1PIN 1

LX A SLEGENDA SB SPIN 1

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)DIMENSIONS ARE IN MILLIMETERSA SB SA SB SUnit: mmPage 6 of 9Version 1.0
Date: 2/16/2006

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Website: http://www.dci.jp

RoHS compliant
1310 nm Single-mode Transceiver, 20dB margin
Small Form Pluggable (SFP), 3.3V
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

Assembly drawing
1.7¡ 0Ó.9
3.5¡ 0Ó.3
41.73¡ Ó0.5
PCB

15.25¡ 0Ó.1

10.4¡ Ó0.1

11.0 REF.

9.8 MAXCAGE ASSEMBLY

0.4¡ 0Ó.1 BELOW PCB

15.0 MAX

BEZEL

16.25¡ Ó0.1
MSA-SPECIFIED BEZELPCBDIMENSIONS ARE IN MILLIMETERS

Unit: mmPage 7 of 9
Version 1.0
Date: 2/16/2006

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Website: http://www.dci.jp

RoHS compliant
1310 nm Single-mode Transceiver, 20dB margin
Small Form Pluggable (SFP), 3.3V
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

Pin Assignment
Pin-Out

PIN 11

PIN 20

PIN 10

PIN 1

PinSignal Name

Description

1234567891011121314151617181920

TGND
TX_FAULTTX_DISABLE
MOD_DEF (2)
MOD_DEF (1)
MOD_DEF (0)RATE SELECT
RX_LOS
RGND
RGND
RGND

Transmit Ground
Transmit Fault
Transmit Disable
SDA Serial Data Signal
SCL Serial Clock SignalTTL Low
Open Circuit
Receiver Loss of Signal, TTL High, open collector
Receiver Ground
Receiver Ground
Receiver Ground
Receive Data Bar, Differential PECL, ac coupled
Receive Data, Differential PECL, ac coupled
Receiver Ground
Receiver Power Supply
Transmitter Power Supply
Transmitter Ground
Transmit Data, Differential PCEL, ac coupled
Transmit Data Bar, Differential PCEL, ac coupled
Transmitter Ground

RX
RX
RGND
VCCR
VCCT
TGND
TX
TX
TGND

Page 8 of 9
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Date: 2/16/2006

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Website: http://www.dci.jp

RoHS compliant
1310 nm Single-mode Transceiver, 20dB margin
Small Form Pluggable (SFP), 3.3V
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

Eye Safety MarkThe GD1310-SFP-LC.S40 series singlemode transceiveris a class 1 laser product. It complies with EN 60825-1
and FDA 21 CFR 1040.10 and 1040.11. In order to meetlaser safety requirements the transceiver shall be operated
within the Absolute Maximum Ratings.

Required MarkClass 1 Laser ProductComplies with21 CFR 1040.10 and 1040.11

CautionAll adjustments have been done at the factory before
the shipment of the devices. No maintenance and userserviceable 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.

Page 9 of 9
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Date: 2/16/2006

E-mail: info@dci.jp
Website: http://www.dci.jp