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OLYCOM

1.25Gbps SFP Transceiver, Single Mode, 20km Reach 1550nm TX / 1310nm RX,OSBL1G20D-53

1.25Gbps SFP Transceiver, Single Mode, 20km Reach 1550nm TX / 1310nm RX,OSBL1G20D-53

通常価格 $5.50 USD
通常価格 $6.80 USD セール価格 $5.50 USD
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Product Features
 Supports up to 1.25Gbps bit rates
 Hot-pluggable SFP footprint
 1550nm FP laser and PIN photo detector, Up to 20km for SMF transmission
 Compliant with SFP MSA and SFF-8472 with single LC receptacle
 Compatible with RoHS
 Single +3.3V power supply
 Real Time Digital Diagnostic Monitoring
 Operating case temperature:
Standard: 0 to +70°C
Industrial: -40 to +85°C

Applications
 1.25Gbps Optical systems
 Gigabit Ethernet
 1.063Gbps Fiber Channel
 Other Optical links

Description
The SFP transceivers are high performance, cost effective modules supporting data rate of 1.25Gbps and 20km transmission distance with SMF.

The transceiver consists of three sections: a FP laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements.

The transceivers are compatible with SFP Multi-Source Agreement and SFF-8472 digital diagnostics functions.

Notes:
1. The optical power is launched into SMF.
2. PECL input, internally AC-coupled and terminated.
3. Measured with a PRBS 27-1 test pattern @1250Mbps, BER ≤1×10-12.
4. Internally AC-coupled.

Digital Diagnostic Memory Map
The transceivers provide serial ID memory contents and diagnostic information about the present operating conditions by the 2-wire serial interface (SCL, SDA).

The diagnostic information with internal calibration or external calibration all are implemented, including received power monitoring, transmitted power monitoring, bias current monitoring, supply voltage monitoring and temperature monitoring.

The digital diagnostic memory map specific data field defines as following.

Pin Descriptions

Notes:
Plug Seq.: Pin engagement sequence during hot plugging.
1) TX Fault is an open collector output, which should be pulled up with a 4.7k~10kΩ resistor on the host board to a voltage between 2.0V and Vcc+0.3V. Logic 0 indicates normal operation; Logic 1 indicates a laser fault of some kind. In the low state, the output will be pulled to less than 0.8V.
2) Laser output disabled on TDIS >2.0V or open, enabled on TDIS <0.8V.
3) LOS is open collector output. Should be pulled up with 4.7k~10kΩ on host board to a voltage between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.
4) RD-/+: These are the differential receiver outputs. They are internally AC-coupled 100 differential lines which should be terminated with 100Ω (differential) at the user SERDES.
5) TD-/+: These are the differential transmitter inputs. They are internally AC-coupled, differential lines with 100Ω differential termination inside the module.

Recommended Interface Circuit

Mechanical Dimensions

Ordering information

Part Number

Product Description

OSBL1G20D-53

1550T/1310R,  1.25Gbps,  LC,  20km,    0°C~+70°C,  with DDM

OSBL1G20DI-53

1550T/1310R,  1.25Gbps,  LC,  20km,  -40°C~+85°C,  with DDM


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