Features:.
l Compliant with IEEE802.3z Gigabit Ethernet
l 1310nm FP laser and 1490nm PIN photo detector
l Industry standard small form pluggable (SFP) package
l Simplex SC connector
l Compliant with SFP MSA
and SFF-8472
l Digital Diagnostic Monitoring(DDM):Internal Calibration or
External Calibration
l Differential LVPECL inputs and outputs
l Single power supply 3.3V
l TTL signal detect indicator
l Hot Pluggable
l Class 1 laser product complies with EN 60825-1
Description:
BDTRP439S1SN/D-20 Small Form Factor Pluggable (SFP) transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement
(MSA). The SFP transceiver supports dual data-rate of 1.25Gbps and
from 20km transmission distance with SMF. They simultaneously
comply with the standards IEEE Std 802.3 and IEEE 802.3u. The SFP module can be compatible with other brand switch devices like Cisco,Huawei etc.The SFP module has the function of
AGC (Automatic Gain control without attenuator).
Block Diagram of Transceiver

Application:
- Switch to switch interface
- High speed I/O for file servers .
- Bus extension applications
Transmitter Electro-optical Characteristics