RoHS Compliant
TX-1570/RX-1510 nm Single-mode Bi-directional (100km)
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◼ 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/RXTEMPERATURE

LD Type

Distance

GB1570-SFP-LC.S100

1570/1510

0C to 70 C1570 DFB

100km

Diagnostics
Parameter

Range

Accuracy

Unit

Temperature-20 to 95±3oVoltage

0 to VCC± 0.1

VBias Current

0 to 120±5mA

TX Power-6 to 6± 3 dBdBm

RX Power-28 to –8± 3 dB

dBm

Page 1 of 10
Version 1.0
Date:10/22/2010

CalibrationC

E-Mail: sales@dci.jp
Website: https://www.dci.jp

External

RoHS Compliant
TX-1570/RX-1510 nm Single-mode Bi-directional (100km)
SFP LC Simplex Connector, with Diagnostic Monitoring
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

Absolute Maximum Ratings
PARAMETERSYMBOLMINMAXUNITSStorage Temperature

TS−4085

C

Supply Voltage

Vcc

−0.5

4.0

V

Input Voltage

VIN−0.5VccV

SYMBOLMIN

MAXUNITS

Case Operating Temperature

TC070

CSupply Voltage

Vcc

3.1

3.5

V

Supply Current

ITX + IRX

---

300mA

Dispersion tolerance

DS

-450

2000

ps/nm

Dispersion Penalty

P---

1.0

dB

NOTE

Recommended Operating Conditions
PARAMETER

Page 2 of 10
Version 1.0
Date:10/22/2010

E-Mail: sales@dci.jp
Website: https://www.dci.jp

NOTERoHS Compliant
TX-1570/RX-1510 nm Single-mode Bi-directional (100km)
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
PARAMETERSYMBOL

MIN

TYP.

MAX

UNITS

NOTE

Pout

−3---+3dBm

Average

Extinction Ratio

ER

9---

---

dB

Center Wavelength

C

1560

1570

1580nmSpectral Width (-20dB)

------

0.5nm

SMSR

30------

dB

Rise/Fall Time, (20−80%)

Tr, f------

260

ps

Relative Intensity NoiseRIN------

−120

dB/Hz

Total Jitter

TJ------

227

psOutput Optical Power
9/125 m fiber

Side Mode Suppression Ratio

Output Eye

Compliant with IEEE802.3z

Max. Pout TX-DISABLE Asserted

POFF------−45dBm

Differential Input Voltage

VDIFF

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 of
TX_FAULT

t_init

---

---

300ms

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

s

TX_DISABLE time to start resett_reset10------sPage 3 of 10
Version 1.0
Date:10/22/2010

E-Mail: sales@dci.jp
Website: https://www.dci.jp

RoHS Compliant
TX-1570/RX-1510 nm Single-mode Bi-directional (100km)
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
PARAMETERSYMBOLMIN

TYP.

MAXUNITS

NOTE

Optical Input Power-maximum

PIN-8------dBm

BER < 10−12

RX Sensitivity

PIN------−31dBm

PRBS7, BER < 10−12

Operating Center WavelengthC1500---

1520

nm

Optical Return Loss

ORL14------

dBSignal Detect-AssertedPA------−31dBm

Signal Detect-Deasserted

PD−45------dBmDifferential Output Voltage

VDIFF

0.5---

1.2

VT r, f---

---

0.35

ns

RX_LOSL

0---

0.5

V

RX_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 4 of 10
Version 1.0
Date:10/22/2010

E-Mail: sales@dci.jpWebsite: https://www.dci.jp

=1500~1520nm

RoHS Compliant
TX-1570/RX-1510 nm Single-mode Bi-directional (100km)
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
DATA/

SUB-ASSEMBLIESPOST-Amp&LOS Detect

RX_LOSTransmitter and Receiver Optical Sub-assembly Section
A 1570 nm InGaAsP laser and an InGaAs PIN photodiode integrate with an WDM filter to form a bi-directional single fiber
optical 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
Version 1.0
Date:10/22/2010

E-Mail: sales@dci.jp
Website: https://www.dci.jp

RoHS Compliant
TX-1570/RX-1510 nm Single-mode Bi-directional (100km)
SFP LC Simplex Connector, with Diagnostic Monitoring
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

Dimensions

DIMENSIONS ARE IN MILLIMETERSALL DIMENSIONS ARE 0.2mm UNLESS OTHERWISE SPECIFIED

Page 6 of 10
Version 1.0
Date:10/22/2010

E-Mail: sales@dci.jp
Website: https://www.dci.jp

RoHS Compliant
TX-1570/RX-1510 nm Single-mode Bi-directional (100km)
SFP LC Simplex Connector, with Diagnostic Monitoring
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

SFP host board mechanical layout
XY

SXYA
1

LX 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 MILLIMETERS

A SB SA SB S

Unit: mm

Page 7 of 10
Version 1.0
Date:10/22/2010

E-Mail: sales@dci.jp
Website: https://www.dci.jp

RoHS Compliant
TX-1570/RX-1510 nm Single-mode Bi-directional (100km)
SFP LC Simplex Connector, with Diagnostic Monitoring
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

Assembly drawing
1.7¡ Ó0.9
3.5¡ Ó0.341.73¡ Ó0.5
PCB

15.25¡ 0Ó.1

10.4¡ Ó0.1

11.0 REF.

9.8 MAXCAGE ASSEMBLY0.4¡ Ó
0.1 BELOW PCB

15.0 MAX

BEZEL

16.25¡ Ó
0.1
MSA-SPECIFIED BEZELPCBDIMENSIONS ARE IN MILLIMETERS

Unit: mm

Page 8 of 10
Version 1.0
Date:10/22/2010

E-Mail: sales@dci.jp
Website: https://www.dci.jp

RoHS Compliant
TX-1570/RX-1510 nm Single-mode Bi-directional (100km)
SFP LC Simplex Connector, with Diagnostic Monitoring
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

Pin Assignment
Pin-Out

PIN 11PIN 20

PIN 10

PIN 1PinSignal 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 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 SupplyTransmitter Ground
Transmit Data, Differential PCEL, ac coupled
Transmit Data Bar, Differential PCEL, ac coupled
Transmitter GroundRX−RX+RGND
VCCR
VCCTTGND
TX+TX−
TGND

Page 9 of 10
Version 1.0
Date:10/22/2010

E-Mail: sales@dci.jp
Website: https://www.dci.jp

RoHS Compliant
TX-1570/RX-1510 nm Single-mode Bi-directional (100km)
SFP LC Simplex Connector, with Diagnostic Monitoring
1.0625Gbd Fiber Channel/1.25 Gigabit Ethernet

Eye Safety MarkThe
GB1570-SFP-LC.S100
seriessinglemodetransceiver 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 the Absolute Maximum Ratings.
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 10 of 10
Version 1.0
Date:10/22/2010

E-Mail: sales@dci.jp
Website: https://www.dci.jp