1.25G SFP CWDM 40km Optical Transceiver

Parameter

Symbol

Min.

Typical

Max.

Unit

Storage Temperature

TS

-40

+85

°C

Supply Voltage

VCC

-0.5

3.6

V

Relative Humidity

RH

0

90

%

Parameter

Symbol

Min.

Typical

Max.

Unit

Case operating Temperature

Tc

0

+70

°C

Supply Voltage

VCC

3.15

3.45

V

Supply Current

Icc

300

mA

Data rate

GBE

1.25

Gbps

FC

1.063

Gbps

Parameter

Symbol

Min.

Typical

Max.

Unit

Note

Transmitter Section:

Input differential impedance

Rin

85

100

115

Ω



Single ended data input swing

Vin PP

400

2000

mVp-p

Transmit Disable Voltage

VD

2.0

Vcc

V

Transmit Enable Voltage

VEN

0

0.8

V

Tx Fault

Fault

Tx_f

2.0

V

Normal

Tx_n

0

V

Receiver Section:

Single ended data output swing

Vout,pp

370

1800

mv

LOS Fault

Vlosfault

2

Vcc

V

LOS Normal

Vlos norm

0

0.8

V

Parameter

Symbol

Min.

Typical

Max.

Unit

Note

Transmitter Section:

Center Wavelength

λc

λ-6

λ

λ+6.5

nm

Spectral Width(-20dB)

△λ

1

nm

Side Mode Suppression Ratio

SMSR

30

dB

Optical Output Power

Pout

-5

0

dBm

1

Optical Rise/Fall Time

tr / tf

260

ps

2

Extinction Ratio

ER

8.2

dB

Eye Mask for Optical Output

Compliant with IEEE802.3z (class 1 laser safety)

Receiver Section:

Optical Input Wavelength

λc

1260

1620

nm

Receiver Overload

Pol

-8

dBm

3

RX Sensitivity

Sen

-24

dBm

3

RX_LOS Assert

LOS A

-40

dBm

RX_LOS De-assert

LOS D

-25

dBm

RX_LOS Hysteresis

LOS H

0.5

dB

General Specifications:

Data Rate

BR

1.063/1.25

Gb/s

Bit Error Rate

BER

10-12

Max. Supported Link Length on 9/125μm SMF@1.25Gb/s

LMAX

40

km

Total System Budget

LB

21

dB