RoHS Compliant
TX-1310/RX-1550 nm Single-mode Bi-directional (15 dB margin)
SFP LC Simplex Connector, with Diagnostic Monitoring
1.0625Gbd Fiber Channel/1.25 Gigabit EthernetFeatures
 Compliant with IEEE802.3z Gigabit Ethernet
Standard
 Compliant with Fiber Channel 100-SM-LC-L
standard Multi rate 125Mbps to 1.25Gbps
 Industry standard small form pluggable (SFP)
package Simplex 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

TX/RX

TEMPERATURE

LD TypeDistance

GB1310-SFP-LC.S20

1310/1550

0 C to 70  C1310 FP

20km

GB1310-SFP-LC.S20(WT) 1310/1550-40 C to 85  C

1310 FP

20km

Diagnostics
Parameter

Range

Accuracy

Unit

Temperature-40 to 95±3oVoltage0 to VCC± 0.1

V

Bias Current

0 to 120±5mA

TX Power-11 to 0± 3 dBdBm

RX Power-23 to –3± 3 dBdBm

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Calibration

CWebsite: www.dci.jp

External

RoHS Compliant
TX-1310/RX-1550 nm Single-mode Bi-directional (15 dB margin)
SFP LC Simplex Connector, with Diagnostic Monitoring
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

Absolute Maximum Ratings
PARAMETERSYMBOLMIN

MAXUNITS

Storage TemperatureTS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

Case Operating Temperature

TC

0-40

7085

C

Supply Voltage

Vcc

3.13.5V

Supply Current

ITX + IRX---300mA

NOTE

Recommended Operating ConditionsPARAMETER

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NOTE
GB1310-SFP-LC.S20
GB1310-SFP-LC.S20(WT)RoHS Compliant
TX-1310/RX-1550 nm Single-mode Bi-directional (15 dB margin)
SFP LC Simplex Connector, 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 Power
9/125 m fiber

SYMBOLMIN

TYP.

MAXUNITSNOTEPout8---2dBm

Average

Extinction RatioER9------dB

Center WavelengthC127013101355nm

Spectral Width (RMS)------

2.5

nm

Rise/Fall Time, (2080%)

Tr , f

---

---

260

ps

Relative Intensity NoiseRIN------

120dB/Hz

Total Jitter

TJ

---

---

227

ps

Output Eye

Compliant with IEEE802.3z

Max. Pout TX-DISABLE Asserted

POFF------

45

dBm

Differential Input Voltage

VDI FF

0.4---

2.0

V

Transmit Fault Output-Low

TX_FAULTL

0.0---

0.5

V

Transmit Fault Output-High

TX_FAULTH

2.4---VCC

V

Time to initialize, include reset ofTX_FAULT

t_init

---

---

300

ms

TX_FAULT from fault to assertiont_fault------100

s

TX_DISABLE time to start resett_reset10------s

Page 3 of 10
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RoHS Compliant
TX-1310/RX-1550 nm Single-mode Bi-directional (15 dB margin)
SFP LC Simplex Connector, 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)
PARAMETERSYMBOLMINTYP.

MAXUNITS

NOTE

Optical Input Power-maximum

PI N

2---

---dBm

BER < 1012RX Sensitivity @GbE

PI N------

23dBmPRBS7, BER < 1012RX Sensitivity @1x FC

PI N------

23dBmPRBS7, BER < 1012RX Sensitivity @OC-12

PI N------

23dBmPRBS23, BER < 1010RX Sensitivity @OC-3

PI N------

23dBmPRBS23, BER < 1010RX Sensitivity @125Mbps

PI N------

23dBmPRBS7, BER < 1010

Operating Center WavelengthC1480

---

1580

nm

Optical Return Loss

ORL14------dB

=1480~1580nm

Optical isolation

ISO---

---

-45

dB

=1260~1360nmSignal Detect-Asserted

PA------

23dBmSignal Detect-DeassertedPD35------dBmDifferential Output Voltage

VDI FF

0.5---

1.2

VT r, f

---

---

0.35

ns

RX_LOS L

0---

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

Page 4 of 10Version 1.5
Date:10/3/2013

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RoHS Compliant
TX-1310/RX-1550 nm Single-mode Bi-directional (15 dB margin)
SFP LC Simplex Connector, with Diagnostic Monitoring
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

Block Diagram of Transceiver

DATA
DATA/

LD Drive&Fault Sense

LD

TX_DISABLE
TX_FAULTPRE.
AMPLIFIER
IC

(0)
(1)

PD

WDM Filter

MOD_DEF(2)

OPTICALDATA

SUB-ASSEMBLIESPOST-Amp

DATA/&LOS Detect

RX_LOSTransmitter and Receiver Optical Sub-assembly Section
A 1310 nm InGaAsP laser and an InGaAs PIN photodiode integrate with an WDM filter to form a bi-directional single fiberoptical subassembly (OSA). The laser of OSA is driven by a LD driver IC which converts differential input LVPECL logic
signals into an analog laser driving current. And, The photodiode of OSA is connected to a circuit providing post-amplification
quantization, and optical signal detection.
TX_FAULT
When sensing an improper power level in the laser driver, the SFP set this signal high and turns off the Laser. TX_FAULT can bereset with the TX_DISABLE line. The signal is in TTL level.
TX_DISABLE
The TX_DISABLE signal is high (TTL logic “1”) to turn off the laser output.
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 TTL level.

Page 5 of 10
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RoHS Compliant
TX-1310/RX-1550 nm Single-mode Bi-directional (15 dB margin)
SFP LC Simplex Connector, with Diagnostic Monitoring
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

Dimensions

Tc point

DIMENSIONS ARE IN MILLIMETERSALL DIMENSIONS ARE 0.2mm UNLESS OTHERWISE SPECIFIED

Page 6 of 10
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RoHS Compliant
TX-1310/RX-1550 nm Single-mode Bi-directional (15 dB margin)
SFP LC Simplex Connector, with Diagnostic Monitoring
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

SFP host board mechanical layout

XYS XYA
1LX 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: mmPage 7 of 10
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RoHS Compliant
TX-1310/RX-1550 nm Single-mode Bi-directional (15 dB margin)
SFP LC Simplex Connector, with Diagnostic Monitoring
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

Assembly drawing
1.7±0.9
3.5±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 MAXBEZEL

16.25±0.1
MSA-SPECIFIED BEZELPCBDIMENSIONS ARE IN MILLIMETERS

Unit: mmPage 8 of 10
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Date:10/3/2013

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RoHS Compliant
TX-1310/RX-1550 nm Single-mode Bi-directional (15 dB margin)
SFP LC Simplex Connector, with Diagnostic Monitoring
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

Pin Assignment
Pin-Out

Pin

PIN 11PIN 20PIN 10PIN 1Signal Name

Description

12345TGND

678

TTL Low
Open Circuit
Receiver Loss of Signal, TTL High, open collector

910MOD_DEF (0)RATE SELECTRX_LOS
RGND
RGND

11RGND

Receiver Ground

1213RX
RX
RGND
VCCR
VCCTTGND

Receive Data Bar, Differential PECL, ac coupled
Receive Data, Differential PECL, ac coupled

TX

Transmit Data, Differential PCEL, ac coupled
Transmit Data Bar, Differential PCEL, ac coupled
Transmitter Ground14151617181920

TX_FAULTTX_DISABLE
MOD_DEF (2)
MOD_DEF (1)

TX
TGND

Page 9 of 10
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Transmit Ground
Transmit Fault
Transmit Disable
SDA Serial Data Signal
SCL Serial Clock Signal

Receiver Ground
Receiver GroundReceiver Ground
Receiver Power Supply
Transmitter Power Supply
Transmitter GroundWebsite: www.dci.jp

RoHS Compliant
TX-1310/RX-1550 nm Single-mode Bi-directional (15 dB margin)
SFP LC Simplex Connector, with Diagnostic Monitoring
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

Eye Safety MarkThe GB1310-SFP-LC.S20 singlemode 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 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 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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