3G-SDI CWDM 1270~1610nm 40km Digital Video SFP Optical Transceiver Module

Description:

E-link’s Transceivers are a high performance, cost effective module which have a duplex LC optics interface. They are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA) and Digital diagnostics functions are available via the 2-wire serial bus specified in SFF-8472. The receiver section uses a PIN receiver and the transmitter uses a CWDM DFB laser, up to 16dB link budge ensure this module SONET OC-48 / SDH STM -16 40km application.

• Absolute Maximum Ratings

• Recommended Operating Environment:

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

Note:

1. AC coupled.
2. Or open circuit.
3. Into 100 ohm differential termination.
4. 20 – 80 %
5. LOS is LVTTL. Logic 0 indicates normal operation; logic 1 indicates no signal detected.
6. All transceiver specifications are compliant with a power supply sinusoidal modulation of 20 Hz to 1.5MHz up to specified value applied through the power supply filtering network shown on page 23 of the Small Form-factor Pluggable (SFP) Transceiver Multi-Source Agreement (MSA), September 14, 2000.

• Optical Characteristics (TOP = 0 to 70°C, VCC = 3.135 to 3.465 Volts)

Note:

1. Compliant with FDA/CDRH and EN (IEC) 60825 regulations (Class 1 Laser Safety).
2. 20-80%.
3. Measured with PRBS 2³¹-1 at 10^-12 BER
4. Measured with PRBS 2⁷-1 at 10^-12 BER
5. Measured with PRBS 2²³-1 at 10^-12 BER

Diagram of Host Board Connector Block Pin Numbers and Names

• Pin Function Definitions

Notes:

1. Circuit ground is internally isolated from chassis ground.
2. Laser output disabled on TDIS >2.0V or open, enabled on TDIS <0.8V.
3. Should be pulled up with 4.7k - 10 kohms on host board to a voltage between 2.0V and 3.6V. MOD_DEF(0) pulls line low to indicate module is plugged in.
4. Rate select is not used
5. LOS is open collector output. Should be pulled up with 4.7k – 10 kohms on host board to a voltage between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.
6. AC Coupled

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.