This document describes the FT-901A-M-LC02 series 155Mbps Fast Ethernet SFP transceiver. It is a multi-mode transceiver that uses 1310nm lasers for transmission and 1550nm for reception over a single mode LC fiber connector with a reach of 2km. It has an SFP form factor and uses differential LVPECL inputs/outputs with a 3.3V power supply. Key specifications and diagrams of the transceiver components and signals are provided.

1. FT-901A-M-LC02 series
155Mpbs Fast Ethernet SFP Transceiver,
WDM-A, Multi-Mode, TX1310/RX1550, LC 2km
Features:
▲SFP Multi-Source Agreement compliant
▲Fast Ethernet application
▲Industry standard small form pluggable (SFP)
package
▲Simplex LC connector
▲Differential LVPECL inputs and outputs
▲Single power supply 3.3V
▲TTL signal detect indicator▲TTL signal detect indicator
▲Hot Pluggable
▲Class 1 laser product complies with EN 60825-1
▲RoHS compliant
Ordering Information:
Model Number Reach TX/RX Input/Out Signal Detect Temperature LD Type
FT-901A-M-LC02 2 km 1310/1550 AC/AC LVTTL 0°C ~ 70 °C 1310 FP
FT-901RA-M-LC02 2 km 1310/1550 AC/AC LVTTL -40°C ~ 85 °C 1310 FP
TEL: 886-2-2658-6893 FELIZ Technology Co., Ltd. ver. 1.1
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2. FT-901A-M-LC02 series
155Mpbs Fast Ethernet SFP Transceiver,
WDM-A, Multi-Mode, TX1310/RX1550, LC 2km
Absolute Maximum Ratings:
Parameter Symbol Min. Max. Units
Storage Temperature Ts -40 85 °C
Supply Voltage Vcc -0.5 4.0 V
Input Voltage V IN -0.5 Vcc V
Output Current I o -- 50 mA
Operating Current I OP -- 400 mA
Recommended Operating Conditions:
Parameter Symbol Min. Max. Units Note
Note
Parameter Symbol Min. Max. Units Note
0 70 °C FT-901A-M-LC02
85 °C FT-901RA-M-LC02
Supply Voltage Vcc 3 3.5 V
Supply Current I TX + I RX -- 300 mA
Transmitter Electro-optical Characteristics:
Vcc = 3.1 V to 3.5 V, T C = 0 °C to 70 °C (-40 °C to 85 °C)
Parameter Symbol Min. Type Max. Units Note
Extinction Ratio ER 8.2 -- -- dB
Center Wavelength λC 1261 1310 1360 nm
Spectral Width(RMS) λ -- -- 7 nm
Rise/Fall Time(10−90%) Tr, f -- 1 2 ns
Output Eye Compliant with Telcordia GR-253-CORE Issue 3 and ITU-T recommendation G-957
Differential Input Voltage V DIFF 0.4 -- 2.0 V
Tc
Output Optical Power
9/125 µm fiber
P out -10
Operating Case
Temperature
Average0 dBm--
Max P out
TX-DISABLE Asserted
P OFF --
-40
-45-- dBm
Differential Input Voltage V DIFF 0.4 -- 2.0 V
TEL: 886-2-2658-6893 FELIZ Technology Co., Ltd. ver. 1.1
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3. FT-901A-M-LC02 series
155Mpbs Fast Ethernet SFP Transceiver,
WDM-A, Multi-Mode, TX1310/RX1550, LC 2km
Receiver Electro-optical Characteristics:
Vcc = 3.1 V to 3.5 V, T C = 0 °C to 70 °C (-40 °C to 85 °C)
Parameter Symbol Min. Type Max. Units Note
Optical Input Power-max. P IN 0 -- -- dBm BER < 10
Operating Center Wavelength λC 1480 -- 1600 nm
Optical isolation ISO -- -- -40 dB λ=1260~1360nm
Loss of Signal-Asserted P A -- -- -28 Average
Loss of Signal-Deasserted P D -45 -- -- Average
Differential Output Voltage V DIFF 0.5 -- 1.6 V
2
dBm
1
Data Output Rise, Fall
T r, f -- ns
-28
Optical Input Power-
min.
(Sensitivity)
P IN -- BER < 10--
-10
-10
Block Diagram of Transceiver:
V
Receiver Loss of Signal
Output Voltage-High
RX_LOS H 2.4 -- V CC
2
RX_LOS L 0
1
-- 0.5 V
Data Output Rise, Fall
Time (10%−90%)
T r, f -- ns
Receiver Loss of Signal
Output Voltage-Low
TEL: 886-2-2658-6893 FELIZ Technology Co., Ltd. ver. 1.1
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4. FT-901A-M-LC02 series
155Mpbs Fast Ethernet SFP Transceiver,
WDM-A, Multi-Mode, TX1310/RX1550, LC 2km
Transmitter and Receiver Optical Sub-assembly Section
A 1310 nm InGaAsP laser and an InGaAs PIN photodiode integrate with an WDM filter to form a
bi-directional single fiber optical subassembly (OSA). The laser of OSA is driven by a LD driver IC which
converts differential input LVPECL logic signals into an analog laser driving current. And, The photodiode
of OSA is connected to acircuit providing post-amplification quantization, and optical signal detection.
TX_DISABLE
The TX_DISABLE signal is high (TTL logic “1”) to turn off the laser output.
Receive Loss (RX_LOS)
The RX_LOS is high (logic “1”) when there is no incoming light from the companion transceiver. This signal
is normally used by the system for the diagnostic purpose. The signal is operated in TTL level.
Dimensions:
Note: All information contained in this document is subject to change without notice.
TEL: 886-2-2658-6893 FELIZ Technology Co., Ltd. ver. 1.1
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