8 Year Exporter Singlemode - 10G Single Mode 40Km DDM | Dual Fiber SFP+ Transceiver JHA3940D – JHA

Features:                                              

1). Supports 9.95 to 11.3Gb/s bit rates

2). Hot-Pluggable

3). Duplex LC connector

4). 1550nm cooled EML transmitter, PIN photo-detector

5). SMF links up to 40km

6). 2-wire interface for management specifications

   compliant with SFF 8472 digital diagnostic monitoring interface

7). Power Supply :+3.3V

8). Power consumption<1.5W

9). Temperature Range: 0~ 70°C

10). RoHS compliant

Applications:

1). 10GBASE-ER/EW Ethernet

2). SONET OC-192 / SDH

3). 10G Fibre channel

Description:

JHA3940D is a very compact 10Gb/s optical transceiver module for serial optical communication applications at 10Gb/s. The JHA3940D converts a 10Gb/s serial electrical data stream to 10Gb/s optical output signal and a 10Gb/s optical input signal to 10Gb/s serial electrical data streams. The high speed 10Gb/s electrical interface is fully compliant with SFI specification.

The high performance 1550nm cooled EML transmitter and high sensitivity PIN receiver provide superior performance for Ethernet applications at up to 40km links.

The SFP+ Module compliants with SFF-8431, SFF-8432 and IEEE 802.3ae 10GBASE-ER. Digital diagnostics functions are available via a 2-wire serial interface, as specified in SFF-8472.

The fully SFP compliant form factor provides hot pluggability, easy optical port upgrades and low EMI emission.

• Absolute Maximum Ratings

• Electrical Characteristics (T_OP = 0 to 70 °C, VCC = 3.135 to 3.465 Volts)

Note:

1. Connected directly to TX data input pins. AC coupling from pins into laser driver IC.
2. Per SFF-8431 Rev 3.0
3. Into 100 ohms differential termination.
4. 20%～80%
5. LOS is an open collector output. Should be pulled up with 4.7k – 10kΩ on the host board. Normal operation is logic 0; loss of signal is logic 1. Maximum pull-up voltage is 5.5V.

• Optical Parameters(T_OP = 0 to 70°C, VCC = 3.135 to 3.465 Volts)

Note:

1. Average power figures are informative only, per IEEE802.3ae.
2. TWDP figure requires the host board to be SFF-8431compliant. TWDP is calculated using the Matlab code provided in clause 68.6.6.2 of IEEE802.3ae.
3. 12dB reflection.
4. Conditions of stressed receiver tests per IEEE802.3ae. CSRS testing requires the host board to be SFF-8431 compliant.
5. Receiver overload specified in OMA and under the worst comprehensive stressed condition.

• Timing Characteristics

• Pin Assignment

Diagram of Host Board Connector Block Pin Numbers and Name

• Pin Function Definitions

Note:

1. The module ground pins shall be isolated from the module case.
2. This pin is an open collector/drain output pin and shall be pulled up with 4.7K-10Kohms to Host_Vcc on the host board.
3. This pin shall be pulled up with 4.7K-10Kohms to VccT in the module.
4. This pin is an open collector/drain output pin and shall be pulled up with 4.7K-10Kohms to Host_Vcc on the host board.

• SFP Module EEPROM Information and Management

The SFP modules implement the 2-wire serial communication protocol as defined in the SFP -8472. The serial ID information of the SFP modules and Digital Diagnostic Monitor parameters can be accessed through the I²C interface at address A0h and A2h. The memory is mapped in Table 1. Detailed ID information (A0h) is listed in Table 2. And the DDM specification at address A2h. For more details of the memory map and byte definitions, please refer to the SFF-8472, “Digital Diagnostic Monitoring Interface for Optical Transceivers”. The DDM parameters have been internally calibrated. 

Table 1. Digital Diagnostic Memory Map (Specific Data Field Descriptions)

Table 2 - EEPROM Serial ID Memory Contents (A0h)

• Digital Diagnostic Monitor Characteristics

• Regulatory Compliance

The JHA3940D complies with international Electromagnetic Compatibility (EMC) and international safety requirements and standards (see details in Table following).

• Recommended Circuit

Recommended Host Board Power Supply Circuit 

Recommended High-speed Interface Circuit

• Mechanical Dimensions

JHA reserves the right to make changes to the products or information contained herein without notice. No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such products or information.

Published by Shenzhen JHA Technology Co., Ltd

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