Oplink Communications, Inc.

Transmitter Performance Characteristics

STX48 Series

(Over Operating Case Temperature.)

Parameter

Symbol

Minimum

Typical

Maximum

Units

Data Rate

B

0.05

2.5

3.0

Gb/s

Average Optical Output Power (50% duty cycle)

P

O

- 10.0

- 7.0

- 3.0

dBm

- 5.0

- 3.0

0

- 2.0

0

3.0

Extinction Ratio

8.2

-

-

dB

Center Wavelength

Short Reach (SR)

λ

C

1266

1310

1360

nm

Intermediate Reach (IR)

1266

1310

1360

Long Reach (LR) 1310 nm

1280

1310

1335

Long Reach (LR) 1550 nm

1500

1550

1580

Spectral Width (RMS)

Short Reach

-

-

4.0

nm

Spectral Width (-20 dB)

Intermediate Reach & Long Reach

-

-

1.0

Side Mode Suppression

Ratio

Intermediate Reach & Long Reach

SMSR

30

-

-

dB

Transmitter Output Eye

Compliant with Bellcore TR-NWT-000253 and ITU-T Recommendation G.957

Receiver Electrical Interface

Parameter

Symbol

Minimum

Typical

Maximum

Units

V

4.75

5.0

5.25

V

Supply Current

I

-

200

300

mA

Input HIGH Voltage (DATA & CLOCK, PECL)

V

IH

V

-

V

V

Input LOW Voltage (DATA & CLOCK, PECL)

V

IL

V

-

V

V

Input Voltage (DATA & CLOCK, PECL)

V

IN

0.30

0.80

1.00

Vp-p

Input DATA & CLOCK timing

T

DC

200

-

300

ps

MODE SELECTOR

Input Voltage

Clocked

V

MSCK

V

EE

-

V

V

Non-Clocked

V

MSNCK

V

-

V

CC

V

Transmitter Disable Voltage

V

DIS

V

-

V

CC

V

Transmitter Enable Voltage

V

EN

V

EE

-

V

V

LD Bias Alarm

Output Voltage

HIGH Voltage

V

ALMH

V

CC

-

V

V

LOS Voltage

V

ALML

V

-

V

V

Differential Bias

Monitor Voltage

at 25

V

BM, DIF

-

100

200

mV

Decreasing Light Input

-

300

500

Differential Back Facet Monitor Voltage

V

FM,DIF

10

100

250

mV

1

For +5V single supply modules, connect VCC to +5V and VEE to 0V or GND (circuit ground). The package housing is internally connected to VEE.

For - 5V single supply modules, connect VCC to 0V or GND (circuit ground) and VEE to - 5V. The package housing is internally connected to VCC.

2

R04.2008.04.30

Related OC-48/STM-16 Transceiver & Receiver Modules

SRX-48

: Receiver without Clock Recovery (24-pin DIP)

SRC-48

: Receiver with Clock Recovery (24-pin DIP)

DTR-2488-SM

: Transceiver without Clock Recovery (industry standard 1x9 package)

DTR-2488-SM2

: Transceiver without Clock Recovery (industry standard 2x9 package)

DTC-48

: Transceiver with Clock Recovery (industry standard 2x9 package)