Optoway

GBB-7940G

***********************************************************************************************************************************************************************

***********************************************************************************************************************************************************************

Tel: 886-3-5979798

Fax: 886-3-5979737

E-mail: sales@optoway.com.tw

http: // www.optoway.com.tw

12/1/2005 V2.0

1

GBB-7940G

(RoHS Compliant)

***********************************************************************************************************************************************************************

FEATURES

l 1-Fiber SM Gigabit Interface Converter (GBIC)

l Compliant with GBIC Specification Rev. 5.5

l Compliant with IEEE-802.3ah 1000BASE-BX

l Compliant with Fibre Channel FC-PH-2 for

100-M5-SN-1 and 100-M6-SN-1

l Hot Pluggable Module with SC Connector

l 1490 nm LD Transmitter

l 1310 nm Receiver

l Up to 40 km using Single-mode Optic Cable

l SCA-2 Host Connector

l Single +5 V Power Supply

l RoHS Compliant

l Differential PECL Inputs and Outputs

l TTL RX-LOS Output

l Class 1 Laser International Safety Standard IEC 60825

Compliant

APPLICATIONS

l WDM Gigabit Ethernet Links

l SONET/SDH Equipment Interconnect

l Fibre Channel Links

DESCRIPTION

The GBB-7940G series single-mode optical transceivers

meet the Gigabit Interface Converter (GBIC) specification

Rev. 5.5. It satisfies the optical interface specifications

defined in IEEE 802.3ah 1000BASE BX by using 1490 nm

transmitter and 1310 nm receiver. The transmitter section

uses a multiple quantum well DFB laser and is a class 1

laser compliant according to International Safety Standard

IEC 60825. The receiver section uses an integrated 1310 nm

detector preamplifier (IDP) mounted in an optical header

and a limiting post-amplifier IC. A PECL input / output

logic interface is used. TTL RX-LOS output simplifies

interface to external circuitry. A 20-pin SCA-2 host

connector is used to connect the converter to the host

system.

LASER SAFETY

This single mode transceiver is a Class 1 laser product. It

complies with IEC 60825 and FDA 21 CFR 1040.10 and

1040.11.

The transceiver must be operated within the

specified temperature and voltage limits. The optical ports

of the module shall be terminated with an optical connector

or with a dust plug.

ORDER INFORMATION

P/No.

Bit Rate

(Gb/s)

Distance

(km)

TX

(nm)

RX

(nm)

Package

Temp

(

TX Power

(dBm)

RX Sens.

(dBm)

RoHS

Compliant

GBB-7940G

1.25

40

1490 DFB

1310

SC GBIC

0 to 70

2 to -3

-23

Yes

Absolute Maximum Ratings

Parameter

Symbol

Min

Max

Units

Notes

Storage Temperature

Tstg

-40

85

Operating Case Temperature

Topr

-5

70

Power Supply Voltage

Vcc

-0.5

6

V

Input Voltage

---

-0.5

Vcc

V

Relative Humidity

RH

5

95

%

Recommended Operating Conditions

Parameter

Symbol

Min

Typ

Max

Units

Power Supply Voltage

Vcc

4.75

5

5.25

V

Power Supply Current

200

300

mA

Operating Case Temperature

Topr

0

70

Data Rate

1000

1250

Mb/s