Features

l  Hot-pluggable SFP package with Duplex LC receptacle connector

l  Operating Data Rate from 40Kbps to 1.25Gbps

l  Built-in Digital Diagnostic Monitoring (DDM) function,Compliant with SFF-8472

l  Single 3.3V Power Supply and CML Logic Interface

l  Operating case temperature:

Standard(C):     0℃~+70℃            

Industrial(I):  -40℃~+85℃

Applications 

l  Fast Ethernet

l  Switch to Switch interface

l  Suitable for optical fiber transmission systems with rates below 40k~1.25Gbps

Order Information

Table 1-Order Information

Note 1: “x”=space, Standard:  0℃~+70℃; “x”=I, Industrial:  -40℃~+85℃

Note 2: “x”=D, with DDM;”x”=space, without DDM

Note 3:  “SMF” stands for 9/125µm SMF

Absolute Maximum Ratings

Table 2-Absolute Maximum Ratings

*Exceeding any one of these values may destroy the device immediately.

Operating Environment

Table 3-Operating Environment

Electrical Characteristics

Table 4-Electrical Characteristics

Note:

1. Internally AC coupled, input termination may be required for CML applications. 

2. Internally AC coupled, CML differential output stage.

Optical Characteristics

Table 5.1-GACS-1307-20xx (SFP 80K~1.25G 1310nm)

Table 5.2-GACS-1307-40xx (SFP 80K~1.25G 1310nm)

Table 5.3-GACS-1307-60xx (SFP 80K~1.25G 1310nm)

 Table 5.4-GACS-1307-60xxA (SFP 40K~1.25G 1310nm)

Note:

1. Coupled into 50/125 MMF

2. Coupled into 9/125 SMF

3. Filtered, measured with a PRBS 2^7-1 test pattern @155Mbps

4. Minimum average optical power at BER less than 1E-12, with a 2^7-1 NRZ PRBS and ER=9 dB

5. LOS Hysteresis, See Figure 2

Figure 1  LOS Hysteresis

Pin arrangement

Figure 2  Pin arrangement

Figure 3  Pin View

Table 6-Connector Pin Assignment

Note:

1.TX Fault is open collector output which should be pulled up externally with a 4.7K ~10KΩ resistor   on the host board to voltage between 2.0V and VCC+0.3V. Logic 0 indicates normal operation; logic 1 indicates a laser fault of some kind. In the low state, the output will be pulled to less than 0.8V.

2.TX Disable input is used to shut down the laser output per the state table below. It is pulled up within the module with a 4.7~ 10K resistor.

         Low (0- 0.8V):                             Transmitter on

         Between (0.8V and 2V):            Undefined

         High (2.0 – VccT):                                Transmitter Disabled

3.MOD-DEF 0, 1, 2. These are the module definition pins. They should be pulled up with a 4.7~10K resistor on the host board to supply less than VccT+0.3V or VccR+0.3V.

MOD-DEF 0 is grounded by the module to indicate that the module is present.

MOD-DEF 1 is clock line of two wire serial interface for optional serial ID.

MOD-DEF 2 is data line of two wire serial interface for optional serial ID.

4.LOS (Loss of signal) is an open collector output, which should be pulled up with a 4.7k~10kΩ resistor on the host board to a voltage between 2.0V and Vcc+0.3V. Logic 0 indicates normal operation; logic 1 indicates loss of signal. In the low state, the output will be pulled to less than 0.8V.

5.These are the differential receiver outputs. They are AC-coupled 100Ω differential lines which should be terminated with 100Ω differential at the user SERDES. The AC coupling is done inside the module and thus not required on the host board.

6.These are the differential transmitter inputs. They are AC-coupled, differential lines with 100Ω differential termination inside the module.

Digital Diagnostic Memory Map

The SFP series defines a 256-byte memory map in EEPROM describing the transceiver’s capabilities, standard interfaces, manufacturer, and other information, which is accessible over a 2 wire serial interface at the 8-bit address 1010000X (A0h),see Figure. The memory contents refer to SFF-8472 Rev 9.5. A2 EEPROM Definition Specific settings please consult our engineer.

Figure 4  Memory Map

Recommended Interface Circuit

Figure 5  Recommended Interface Circuit

Mechanical Information

Figure 6  Duplex LC

Notice

Gigac reserves the right to make changes to or discontinue any optical link product or service identified in this publication, without notice, in order to improve design and/or performance. Applications that are described herein for any of the optical link products are for illustrative purposes only. Gigac makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification.

Revision History

Contact

Add: Area 3-502, Haolang technology Park,

NO.2666, Konggang Four Road, Shuangliu district, 610207 Chengdu, China

Tel: (+86) 028-85124518

Fax: (+86) 028-85154518

Postal: 610207

E-mail: sales@gigac.com

Website: http://www.gigac.com

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