RoHS compliant
1310 nm Single-mode Transceiver, (1000Base-LX)
Small Form Pluggable (SFP), 3.3V
1.0625Gbd Fiber Channel/1.25 Gigabit EthernetFeatures
 Compliant with IEEE802.3z Gigabit Ethernet
Standard
 Compliant with Fiber Channel 100-SM-LC-L
standard
 Industry standard small form pluggable (SFP)
package 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

Application
 Distributed multi-processing Switch to switch interface High speed I/O for file server
 Bus extension application
 Channel extender, data storage

Ordering Information
PART NUMBER

INPUT/OUTPUT

SIGNAL DETECTVOLTAGETEMPERATURE

GD1310-SFP-LC.S10

AC/AC

TTL

3.3V

0°C to 70 °C

GD1310-SFP-LC.S10(WT)

AC/AC

TTL

3.3V

Option:-40°C to 85 °C

Page 1 of 9
Version 1.2
Date: 03/30/2012

TEL: 03-3836-5611
FAX: 03-3836-5614
Website: http://www.dci.jp

RoHS compliant
1310 nm Single-mode Transceiver, (1000Base-LX)
Small Form Pluggable (SFP), 3.3V
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

Absolute Maximum Ratings
PARAMETERSYMBOLMIN

MAXUNITSNOTEStorage Temperature

TS−4085°C

Supply 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

GD1310-SFP-LC.S10-4085°C

GD1310-SFP-LC.S10(WT)

Recommended Operating Conditions
PARAMETER
Case Operating TemperatureTC

Supply Voltage

Vcc

3.1

3.5

V

Supply Current

ITX + IRX---250mA

Transmitter Electro-optical Characteristics
Vcc = 3.1 V to 3.5 V, TC = 0 °C to 70 °C (-40 °C to 85 °C)
PARAMETERSYMBOLMINTYP.

MAXUNITS

NOTE

−9---

−3dBm

AverageER

9------dB

Center Wavelength

λC

1270

13101355nm

Spectral Width (RMS)

Δλ---

---

2.5nm

Rise/Fall Time, (20−80%)

Tr, f---

---

260

ps

Relative Intensity Noise

RIN

---

---

−120

dB/Hz

Total Jitter

TJ------

227ps

Output Optical Power
9/125 μm fiber

Pout

Extinction Ratio

Output Eye

Compliant with IEEE802.3z

Max. Pout TX-DISABLE Asserted

POFF------−45dBm

Differential Input Voltage

VDIFF

0.4---2.0V

Page 2 of 9
Version 1.2
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TEL: 03-3836-5611
FAX: 03-3836-5614
Website: http://www.dci.jp

RoHS compliant
1310 nm Single-mode Transceiver, (1000Base-LX)
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-maximum

PIN−3------dBm

BER < 10−12

Optical Input Power-minimum(Sensitivity)

PIN------−20dBm

BER < 10−12

Operating Center Wavelength

λC1260---

1610

nm

Optical Return Loss

ORL12------dBSignal Detect-Asserted

PA---

---

−20dBmSignal Detect-Deasserted

PD−35------dBm

---

---

−14.4

dBm

0.5

---

1.2

V

Stressed Receiver Sensitivity
Differential Output Voltage

VDIFF

Note 1, 2

Data Output Rise, Fall TimeT r, f----0.35
ns(20−80%)
Receiver Loss of Signal Output
RX_LOSL0--0.5
V
Voltage-Low
Receiver Loss of Signal Output
RX_LOSH
2.4--VCCV
Voltage-High−12
Note 1: Measured with conformance test signal at TP3 for BER = 10 at the eye center.
Note 2: Measured with a transmit signal having a 9 dB extinction ratio. If another extinction ratio is used, the Stressed receiversensitivity should be corrected for the extinction ratio penalty.

Page 3 of 9
Version 1.2
Date: 03/30/2012

TEL: 03-3836-5611
FAX: 03-3836-5614
Website: http://www.dci.jp

RoHS compliant
1310 nm Single-mode Transceiver, (1000Base-LX)
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)

MOD_DEF

DUPLEX SC
RECEPTACLE

(2)

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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TEL: 03-3836-5611
FAX: 03-3836-5614
Website: http://www.dci.jp

RoHS compliant
1310 nm Single-mode Transceiver, (1000Base-LX)
Small Form Pluggable (SFP), 3.3V
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet¡Ó¡ÓDimensions

DIMENSIONS ARE IN MILLIMETERSALL DIMENSIONS ARE 0.2mm UNLESS OTHERWISE SPECIFIED

Unit: mm

Page 5 of 9
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Date: 03/30/2012

TEL: 03-3836-5611
FAX: 03-3836-5614
Website: http://www.dci.jp

RoHS compliant
1310 nm Single-mode Transceiver, (1000Base-LX)
Small Form Pluggable (SFP), 3.3V
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

SFP host board mechanical layout
XYS XYA
1LX A S

1PIN1

LX A SLEGENDA SB SPIN1

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 MILLIMETERS

A SB SA SB S

Unit: mm

Page 6 of 9
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TEL: 03-3836-5611
FAX: 03-3836-5614
Website: http://www.dci.jp

RoHS compliant
1310 nm Single-mode Transceiver, (1000Base-LX)
Small Form Pluggable (SFP), 3.3V
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

Assembly drawing
1.7¡ Ó
0.9
3.5¡ Ó
0.3
41.73¡ Ó0.5
PCB

15.25¡ Ó0.1

10.4¡ Ó0.1

11.0 REF.

9.8 MAXCAGE ASSEMBLY

0.4¡ Ó0.1 BELOW PCB

15.0 MAX

BEZEL

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

Unit: mm

Page 7 of 9
Version 1.2
Date: 03/30/2012

TEL: 03-3836-5611
FAX: 03-3836-5614
Website: http://www.dci.jp

RoHS compliant
1310 nm Single-mode Transceiver, (1000Base-LX)
Small Form Pluggable (SFP), 3.3V
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

Pin Assignment
Pin-Out

PIN 11

PIN 20

PIN 10PIN 1PinSignal Name

Description

12345678910111213
1415
16
1718
1920

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

Transmit Ground
Transmit Fault
Transmit Disable
SDA Serial Data Signal
SCL Serial Clock Signal
TTL 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 GroundRX−
RX+RGND
VCCR
VCCTTGND
TX+TX−
TGND

Page 8 of 9Version 1.2
Date: 03/30/2012

TEL: 03-3836-5611
FAX: 03-3836-5614
Website: http://www.dci.jp

RoHS compliant
1310 nm Single-mode Transceiver, (1000Base-LX)
Small Form Pluggable (SFP), 3.3V
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

Eye Safety MarkThe LS3 series singlemode transceiver is a class 1 laser
product. It complies with EN 60825-1 and FDA 21 CFR
1040.10 and 1040.11. In order to meet laser safety
requirements the transceiver shall be operated within theAbsolute 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 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.

Page 9 of 9
Version 1.2
Date: 03/30/2012

TEL: 03-3836-5611
FAX: 03-3836-5614
Website: http://www.dci.jp