2×5 SFF GEPON ONU Transceiver

FTM-9412S-F20(i)(DC)G

IEEE 802.3ah

Preliminary Data Sheet

Apr. 2, 2007

Fiberxon Proprietary and Confidential, Do Not Copy or Distribute

DS0000147-1a

Page 5 of 11

T

EN_DUR

T

DIS_DUR

T

BURST_ON

T

BURST_OFF

ER for CM

operation

ER and Average

Power within 15%

CM operation

Average Power

<=-45dBm

TX_BRST

TD+

TD-

Optical

Power

Output

Burst On Condition

Burst Off Condition

Figure 1 Timing Parameter Definition in Burst Mode Sequence

Recommended Interface Circuit

Figure 2 shows the recommended interface schemes for FTM-9412S-F20(i)G.

GEPON MAC

FTM-9412S-F20(i)G

BM

Laser

Driver

CM

Limiting

Amplifier

Z=50

TD+(9)

TD-(10)

RD+(5)

RD-(4)

2x150

100

TX_BRST(8)

SD(3)

SerDes

TXP

TXN

RX

N

RX

P

V

V

2x1 uH

10 uF

0.1uF

0.1uF

0.1uF

10 uF

V

V

PON_TX_DISABLE

PON_LOS

Z=50

Z=50

Z=50

+3.3V

+3.3

V

10K

2x150

R1

R2

R3

R4

R5

(Note B)

(Note A)

Figure 2 Recommended Interface Circuit