ITR-D3T-SD5-2

DS-5660 Rev 00

Functional Characteristics

The following tables list the performance specifications for the various functional blocks of the integrated optical transceiver module.

Table 3 – Digital Transmitter Specifications

Parameter

Minimum

Typical

Maximum

Unit

Notes

Operating Voltage

3.14

3.30

3.46

V

Vcc referenced to GND_Tx

Data Rate

-

1244.16

-

Mbps

Average Optical Output Power, Po

0.5

-

5

dBm

Output Power at Transmit Off

-

-

-40

dBm

Extinction Ratio

10

-

-

dB

PRBS 2

Transmitter Output Eye

G.984.2 Figure 3

Optical Rise and Fall Time

-

250

-

ps

20% to 80%

Side Mode Suppression Ration (SMSR)

30

-

-

dB

300

-

1800

mVp-p

BEN+/- and TXD+/-. DC-coupled

Input Impedance, differential

-

100

-

BEN+/-, TXD+/-

Common-Mode Input Voltage

GND_Tx +

1.4

-

0.1

V

DC coupled

Tx Burst Enable Time

-

-

12.86

ns

16 bits data @ 1244Mbps

Tx Burst Disable Time

-

-

12.86

ns

16 bits data @ 1244Mbps

Jitter Generation

-

-

0.2

UI

4 kHz to 10 MHz

Refer to Figure 1 which schematically describes the high speed data inputs/outputs of the optical transceiver module.

LDD/Post amp.

TX

Tx Data

&

Burst Enable

Rx Data

100

π

100

π Differential

Transmission Line

RX

0.1

πF

100

π Differential

Transmission Line

0.1

πF

For CML

Tx Data

Figure 1 - Schematic representation of the module high speed inputs/outputs