2.5G GPON C+ SFP 20km

Parameter

Unit

Min.

Typical

Max.

Transmitter

TX Central Wavelength

nm

1480

1490

1500

Spectral Width (-20dB)

nm

1

Side Mode Suppression Ratio (SMSR)

dB

30

Mean Launched Power

dBm

1.5

5

Mean Launched Power (TX Off)

dBm

-45

Extinction Ratio

dB

8.2

Optical Return Loss Tolerance

dB

-12

Transmitter and dispersion Penalty

dB

1

Transmitter Mask(PRBS223-1&2.488G)

Compliant With ITU-T G.984.2

Receiver

Receive Wavelength

nm

1290

1310

1330

Sensitivity(PRBS223-1 & 1.244G,ER=10,BER<10-10)

dBm

-28

Overload(PRBS223-1&1.244G,ER=10,BER<10-10)

dBm

-8

Receiver Burst Mode Dynamic Range

dB

15

Damage Threshold for Receiver

dBm

5

SD Assert Level

dBm

-30

SD De-assert Level

dBm

-45

SD Hysteresis

dB

0.5

6

WDM Filter isolation to 1550nm

dB

38

WDM Filter isolation to 1650nm

dB

35

Electrical Interface Characteristics

Data Input Swing Differential/TX

mV

200

-

2000

Data Output Swing Differential/RX

mV

400

1600

Date Differential Impedance

Ω

90

100

110

LVTTL Output High

V

2.4

Vcc

LVTTL Output Low

V

0

0.4

LVTTL Input High

V

2

Vcc+0.3

LVTTL Input Low

V

0

0.8

Timing Characteristics

Guard Time (Tg)

ns

25.6

Reset Pulse Width (Tr)

ns

12.8

Reset Delay (Trd)

ns

12.8

Receiver Preamble Time (Tp)

ns

140

SD Assert Time (TSDA)

ns

100

SD De-assert Time (TSDD)

ns

12.8

RSSI Trigger Delay (Ttd)

ns

25

RSSI Trigger Pulse Width (Tw)

ns

500

Internal I2C Delay (Twait)

us

500