1.25G Single Mode 20Km DDM | Dual Fiber SFP Transceiver JHA3420D

Features:

1). Up to 1.25Gb/s Data Links 

2). Hot-Pluggable

3). Duplex LC connector

4). Up to 20km on 9/125μm SMF

5). 1310nm FP laser transmitter 

6). Single +3.3V Power Supply

7). Monitoring Interface Compliant with SFF-8472

8). Low power dissipation <1W typically

9). Industrial /Extended/ Commercial operating temperature range: -40°C to 85°C/-5°C to 85°C/-0°C to 70°C Version available

10). RoHS compliant and Lead Free

 Applications:

1). Metro/Access Networks

2). 1.25 Gb/s 1000Base-LX Ethernet

3). 1×Fibre Channel

4). Other Optical Links

Description:

JHA3420D Transceiver is a high performance, cost effective module which have a duplex LC optics interface. Standard AC coupled CML for high speed signal and LVTTL control and monitor signals. The receiver section uses a PIN receiver and the transmitter uses a 1310 nm FP laser, up to 15dB link budge ensure this module 1000Base Ethernet 20km application.

• Absolute Maximum Ratings

• Recommended Operating Environment:

• Electrical Characteristics(T_OP = -40 to 85°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 Parameters(T_OP = -40 to 85°C, VCC = 3.135 to 3.465 Volts)

Note

1. The optical power is launched into SMF.
2. 20-80%.
3. Jitter measurements taken using Agilent OMNIBERT 718 in accordance with GR-253.
4. Measured with PRBS 2^7-1 at 10^-12 BER

• Pin Assignment

Diagram of Host Board Connector Block Pin Numbers and Name

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.

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 JHA3420D complies with international Electromagnetic Compatibility (EMC) and international safety requirements and standards (see details in Table following).

 • Recommended Circuit

SFP Host Recommended Circuit

• Mechanical Dimensions

Mechanical Drawing

Order Information:

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