北亿纤通科技有限公司
1.25Gbps Single‑Mode Mini SFF Bi‑directional Single‑Fiber
Optical Transceiver Module
FTMF-Bxx12-20I
Product Features
High reliability, all‑metal housing
3.3 V single‑supply power supply
Wide operating temperature range
MiniSFF package, FC interface
Transmission distance:20km
Operating temperature：
FTMF-Bxx12-20I:-40℃~+85℃
Product Applications
Digital optical fiber communication systems such as
Ethernet, Sonet/SDH, switches
Optical fiber communication links
Absolute Maximum Ratings
Parameter Symbol Min. Max. Unit Remarks
–
Storage Temperature Ts -40 85 ℃
–
Storage Temperature Vcc -0.5 3.6 V
– –
Soldering Temperature 260 ℃ Soldering time ≤10s
–
Input Voltage Vin GND Vcc V
Recommended Operating Conditions
Parameter Symbol Min. Max. Unit Remarks
Supply Voltage Vcc 3.1 3.3 3.5 V
Commercial
0 – 70 ℃
Operating Temperatur Grade
e
Industrial Gra –
-40 85 ℃
de
– – –
Operating Data Rate 1.25 Gbps
– –
Operating Current Icc 300 mA
Tel:+86-28-85255257-812 Fax:+86-28-85977702
Add:A-1building,HightechIndustrialPark,Chengdu,Sichuan,China V3.06
Web:http://www.f-tone.com Email:sales@f-tone.com Page 1 /6
| Absolute Maximum Ratings | |||||
|---|---|---|---|---|---|
| Parameter | Symbol | Min. | Max. | Unit | Remarks |
| Storage Temperature | Ts | -40 | 85 | ℃ | – |
| Storage Temperature | Vcc | -0.5 | 3.6 | V | – |
| Soldering Temperature | – | – | 260 | ℃ | Soldering time ≤10s |
| Input Voltage | Vin | GND | Vcc | V | – |
| Recommended Operating Conditions | |||||
|---|---|---|---|---|---|
| Parameter | Symbol | Min. | Max. | Unit | Remarks |
| Supply Voltage | Vcc | 3.1 | 3.3 | 3.5 | V |
| Operating Temperatur e |
Commercial Grade |
0 | – | 70 | ℃ |
| Industrial Gra de |
-40 | – | 85 | ℃ | |
| Operating Data Rate | – | – | 1.25 | – | Gbps |
| Operating Current | Icc | – | – | 300 | mA |
北亿纤通科技有限公司
Transmitter Parameters (3.1V < Vcc < 3.5V)
Parameter Symbol Min. Typ. Max. Unit
Optical Parameters
–
Po(1310TX/1550RX) -9 -3
Optical Output Power dBm
–
Po(1550TX/1310RX) -9 -3
λC(1310TX/1550RX) 1270 1310 1350
Center Wavelength nm
λC(1550TX/1310RX) 1520 1550 1580
– –
Δλ(1310FP) 4 nm(RMS)
Output Spectral Width
– –
Δλ(1550DFB) 1 nm（-20dBWidth)
– –
Extinction Ratio ER 9 dB
Electrical Parameters
–
Differential Input Voltage Vdiff_in 0.3 1.0 V
Receiver Parameters (3.1V < Vcc < 3.5V)
Parameter Symbol Min. Typ. Max. Unit Remarks
Optical Parameters
– –
Receiver Sensitivity Sen -22 dBm 1
– –
Saturation Optical Power PMAX -3 dBm
– –
Loss–Deasserted Pd -23 dBm
– –
Loss–Asserted Pa -40 dBm
–
Loss–Hysteresis Phys 1 4 dB
λ(1310TX/1550RX) 1510 1550 1590
Center Wavelength nm
λ(1550TX/1310RX) 1260 1310 1360
Electrical Parameters
–
Differential Output Voltage Vdiff_out 0.3 0.8 V
Notes: Measured values are average optical power; BER < 10¹² and PRBS 2³¹‑1.
Tel:+86-28-85255257-812 Fax:+86-28-85977702
Add:A-1building,HightechIndustrialPark,Chengdu,Sichuan,China V3.06
Web:http://www.f-tone.com Email:sales@f-tone.com Page 2 /6
| Transmitter Parameters (3.1V < Vcc < 3.5V) | |||||
|---|---|---|---|---|---|
| Parameter | Symbol | Min. | Typ. | Max. | Unit |
| Optical Parameters | |||||
| Optical Output Power | Po(1310TX/1550RX) | -9 | – | -3 | dBm |
| Po(1550TX/1310RX) | -9 | – | -3 | ||
| Center Wavelength | λC(1310TX/1550RX) | 1270 | 1310 | 1350 | nm |
| λC(1550TX/1310RX) | 1520 | 1550 | 1580 | ||
| Output Spectral Width | Δλ(1310FP) | – | – | 4 | nm(RMS) |
| Δλ(1550DFB) | – | – | 1 | nm（-20dBWidth) | |
| Extinction Ratio | ER | 9 | – | – | dB |
| Electrical Parameters | |||||
| Differential Input Voltage | Vdiff_in | 0.3 | – | 1.0 | V |
| Receiver Parameters (3.1V < Vcc < 3.5V) | ||||||
|---|---|---|---|---|---|---|
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Remarks |
| Optical Parameters | ||||||
| Receiver Sensitivity | Sen | – | – | -22 | dBm | 1 |
| Saturation Optical Power | PMAX | -3 | – | – | dBm | |
| Loss–Deasserted | Pd | – | – | -23 | dBm | |
| Loss–Asserted | Pa | -40 | – | – | dBm | |
| Loss–Hysteresis | Phys | 1 | – | 4 | dB | |
| Center Wavelength | λ(1310TX/1550RX) | 1510 | 1550 | 1590 | nm | |
| λ(1550TX/1310RX) | 1260 | 1310 | 1360 | |||
| Electrical Parameters | ||||||
| Differential Output Voltage | Vdiff_out | 0.3 | – | 0.8 | V |
北亿纤通科技有限公司
Digital Diagnostic Register Address
Pin Definition
No. Name Function Level
1 TD+ Transmit channel differential input positive CML
2 VEETX Transmitter reference ground N/A
3 TD- Transmit channel differential input negative CML
4 VCCTX Transmitter power supply N/A
5 SDA Data line for 2‑wire serial interface Open-Drain
6 SCL Clock line for 2‑wire serial interface Open-Drain
7 RD+ Receive channel differential output positive CML
8 VCCRX Receiver power supply N/A
9 RD- Receive channel differential output negative CML
10 VEERX Signal ground N/A
Tel:+86-28-85255257-812 Fax:+86-28-85977702
Add:A-1building,HightechIndustrialPark,Chengdu,Sichuan,China V3.06
Web:http://www.f-tone.com Email:sales@f-tone.com Page 3 /6
| No. | Name | Function | Level |
|---|---|---|---|
| 1 | TD+ | Transmit channel differential input positive | CML |
| 2 | VEETX | Transmitter reference ground | N/A |
| 3 | TD- | Transmit channel differential input negative | CML |
| 4 | VCCTX | Transmitter power supply | N/A |
| 5 | SDA | Data line for 2‑wire serial interface | Open-Drain |
| 6 | SCL | Clock line for 2‑wire serial interface | Open-Drain |
| 7 | RD+ | Receive channel differential output positive | CML |
| 8 | VCCRX | Receiver power supply | N/A |
| 9 | RD- | Receive channel differential output negative | CML |
| 10 | VEERX | Signal ground | N/A |
北亿纤通科技有限公司
Recommended Circuit
Notes:
(1) L1=L2=PZ1608D121 2R0TF.
(2) High speed signal traces shall maintain 100 Ω differential impedance.
Mechanical Dimensions
Notes: Undimensioned tolerances: ±0.25 mm
Tel:+86-28-85255257-812 Fax:+86-28-85977702
Add:A-1building,HightechIndustrialPark,Chengdu,Sichuan,China V3.06
Web:http://www.f-tone.com Email:sales@f-tone.com Page 4 /6
北亿纤通科技有限公司
PCB Recommended Layout
Below is a recommended PCB layout and packaging diagram for user mainboards.
Installation Schematic Diagram
Tel:+86-28-85255257-812 Fax:+86-28-85977702
Add:A-1building,HightechIndustrialPark,Chengdu,Sichuan,China V3.06
Web:http://www.f-tone.com Email:sales@f-tone.com Page 5 /6
北亿纤通科技有限公司
Order Information
Data Volt Transmit Receiver Tempe
Pack Distance
Model Rate Wavelength (nm) age Power Sensitivity rature
age (km)
(V) (dBm) (dBm) (°C)
(Gb/s)
FTMF‑B1312‑20I TX1310FP/RX1550
-40
FC 1.25 20 3.3 -9to-3 -22
~85
FTMF‑B1512‑20I TX1550DFB/RX1310
Important Notice
Performance figures, data and any illustrative material provided in this data sheet are typical and
must be specifically confirmed in writing by F-tone Networks before they become applicable to
any particular order or contract. In accordance with the F-tone Networks policy of continuous
improvement specifications may change without notice.
The publication of information in this data sheet does not imply freedom from patent or other
protective rights of F-tone Networks or others. Further details are available from any F-tone
Networks sales representative.
Tel:+86-28-85255257-812 Fax:+86-28-85977702
Add:A-1building,HightechIndustrialPark,Chengdu,Sichuan,China V3.06
Web:http://www.f-tone.com Email:sales@f-tone.com Page 6 /6
| Model | Pack age |
Data Rate (Gb/s) |
Distance (km) |
Wavelength (nm) | Volt age (V) |
Transmit Power (dBm) |
Receiver Sensitivity (dBm) |
Tempe rature (°C) |
|---|---|---|---|---|---|---|---|---|
| FTMF‑B1312‑20I | FC | 1.25 | 20 | TX1310FP/RX1550 | 3.3 | -9to-3 | -22 | -40 ~85 |
| FTMF‑B1512‑20I | TX1550DFB/RX1310 |
