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SFP BIDI Gigabit Fiber Transceiver 1.25G 1490/1310nm DDM 20KM Distance 3.3V

SFP BIDI Gigabit Fiber Transceiver 1.25G 1490/1310nm DDM 20KM Distance 3.3V

SFP BIDI Gigabit Fiber Transceiver 1.25G 1490/1310nm DDM 20KM Distance 3.3V

Product Details:

Place of Origin: shenzhen, China
Brand Name: Transcom
Certification: ISO FCC CE RoSH
Model Number: TS-SF-BL34(43)12-20D

Payment & Shipping Terms:

Minimum Order Quantity: 1 PCS
Packaging Details: Standard Package
Delivery Time: 3-5 work days
Payment Terms: T/T
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Detailed Product Description
Brand Name: Transcom Rate: 1.25Gb/s
Distance: 20KM Voltage: 3.3V
Connector: LC Wavelength: 1310/1490nm(1490/1310nm)

APPLICATIONS

l Switch to Switch Interface

l Gigabit Ethernet

l Switched Backplane Applications

l Router/Server Interface

l Other Optical Links

PRODUCT DESCRIPTION

TRANSCOM’s TS-SF-BL34(43)12-20D Small Form Factor Pluggable (SFP) transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA), The transceiver consists of five sections: the LD driver, the limiting amplifier, the digital diagnostic monitor, the 1310nm FP laser (the 1490nm DFB laser) and the PIN photo-detector. The module data link up to 20KM in 9/125um single mode fiber.

 

The optical output can be disabled by a TTL logic high-level input of Tx Disable, and the system also can disable the module via I2C. Tx Fault is provided to indicate that degradation of the laser. Loss of signal (LOS) output is provided to indicate the loss of an input optical signal of receiver or the link status with partner. The system can also get the LOS (or Link)/Disable/Fault information via I2C register access.

Pin Descriptions

Pin Symbol Name/Description Ref.
1 VEET Transmitter Ground (Common with Receiver Ground) 1
2 TFAULT Transmitter Fault.  
3 TDIS Transmitter Disable. Laser output disabled on high or open. 2
4 MOD_DEF(2) Module Definition 2. Data line for Serial ID. 3
5 MOD_DEF(1) Module Definition 1. Clock line for Serial ID. 3
6 MOD_DEF(0) Module Definition 0. Grounded within the module. 3
7 Rate Select No connection required 4
8 LOS Loss of Signal indication. Logic 0 indicates normal operation. 5
9 VEER Receiver Ground (Common with Transmitter Ground) 1
10 VEER Receiver Ground (Common with Transmitter Ground) 1
11 VEER Receiver Ground (Common with Transmitter Ground) 1
12 RD- Receiver Inverted DATA out. AC Coupled  
13 RD+ Receiver Non-inverted DATA out. AC Coupled  
14 VEER Receiver Ground (Common with Transmitter Ground) 1
15 VCCR Receiver Power Supply  
16 VCCT Transmitter Power Supply  
17 VEET Transmitter Ground (Common with Receiver Ground) 1
18 TD+ Transmitter Non-Inverted DATA in. AC Coupled.  
19 TD- Transmitter Inverted DATA in. AC Coupled.  
20 VEET Transmitter Ground (Common with Receiver Ground) 1

 

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 - 10kohms 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. This is an optional input used to control the receiver bandwidth for compatibility with multiple data rates (most likely Fiber Channel 1x and 2x Rates). If implemented, the input will be internally pulled down with > 30kΩ resistor. The input states are:

Ÿ Low (0 – 0.8V): Reduced Bandwidth

Ÿ (>0.8V, < 2.0V): Undefined

Ÿ High (2.0 – 3.465V): Full Bandwidth

Ÿ Open: Reduced Bandwidth

5. LOS is open collector output. Should be pulled up with 4.7k - 10kohms on host board to a voltage between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.

SFP BIDI Gigabit Fiber Transceiver 1.25G 1490/1310nm DDM 20KM Distance 3.3V

Figure 2: Pin-out of Connector Block on Host Board

Specification of Transmitter

Parameter Symbol Min. Typ. Max. Unit Note
Average Output Power POUT -9   -3 dBm  
Extinction Ratio ER 9     dB  
Center Wavelength λC 1270 1310 1360 nm TS-SF-BL3412-20D
1470 1490 1510 TS-SF-BL4312-20D
Spectrum Width (RMS) σ     3.5 nm

FP Laser

(TX:1310nm)

Side Mode Suppression Ratio SMSR 30     dB

DFB Laser

(TX:1490nm)

Spectrum Bandwidth(-20dB) σ     1 nm
Transmitter OFF Output Power POff     -45 dBm  
Differential Line Input Impedance RIN 90 100 110 Ohm  
Jitter P-P tJ     128 ps Note (1)
Output Eye Mask Compliant with IEEE802.3 z (class 1 laser safety)   Note (2)

Note (1): Measure at 2^7-1 NRZ PRBS pattern

 

Specification of Receiver

Parameter Symbol Min. Typ. Max. Unit Note
Input Optical Wavelength λIN 1470 1490 1510 nm TS-SF-BL3412-20D
1270 1310 1360 TS-SF-BL4312-20D
Receiver Sensitivity PIN     -20 dBm Note (1)
Input Saturation Power (Overload) PSAT -3     dBm  
Los Of Signal Assert PA -38     dBm  
Los Of Signal De-assert PD     -22 dBm Note (2)
LOS Hysteresis PA-PD 0.5 2 6 dB  

 

Note (1): Measured with Light source 1490nm(1310nm), ER=9dB; BER =<10^-12 @PRBS=2^7-1 NRZ

Note (2): When LOS de-asserted, the RX data+/- output is High-level (fixed)

 

Contact Details
Shenzhen Transcom Technology Limited

Contact Person: Iris

Tel: +8618924996170

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