Fiber Optics

V23809-C8–C10, MM 1300 nm LED Fast Ethernet/FDDI/ATM Transceiver

2

DESCRIPTION

This data sheet describes the Infineon Fast Ethernet/FDDI/ATM

transceiver—part of Infineon Multistandard Transceiver Family.

It is fully compliant with the Asynchronous Transfer Mode

(ATM) OC-3 standard, the Fiber Distributed Data Interface

(FDDI) Low Cost Fiber Physical Layer Medium Dependent (LCF-

ATM was developed because of the need for multimedia appli-

cations, including real time transmission. The data rate is scal-

able and the ATM protocol is the basis of the broadband public

networks being standardized in the International Telegraph and

Telephone Consultative Committee (CCITT). ATM can also be

used in local private applications.

FDDI is a Dual Token Ring standard developed in the U.S. by the

Accredited National Standards Committee (ANSC) X3T9, within

the Technical Committee X3T9.5. It is applied to the local area

networks of stations, transferring data at 100 Mbits/s with a

125 MBaud transmission rate. LCF FDDI is specially developed

for short distance applications of up to 500 m (fiber-to-the-desk)

as compared to 2 km for backbone applications.

Fast Ethernet was developed because of the higher bandwidth

requirement in local area networking. It is based on the proven

effectiveness of millions of installed Ethernet systems.

The Infineon multimode transceiver is a single unit comprised

of a transmitter, a receiver, and an SC receptacle. This design

frees the customer from many alignment and PC board layout

concerns. The modules are designed for low cost applications.

The inputs/outputs are PECL compatible and the unit operates

from a 3.0 V to 5.5 V power supply. As an option, the data out-

put stages can be switched to static levels during absence of

light, as indicated by the Signal Detect function. It can be

directly interfaced with available chipsets.

Notes

1. FDDI Token Ring, Low Cost Fiber Physical Layer Medium Depen-

dent (LCF-PMD) ANSI X3T9.5 / 92 LCF-PMD / Proposed Rev. 1.3,

September 1, 1992. American National Standard.

2. FDDI Token Ring, Physical Layer Medium Dependent (PMD) ANSI

X3.166-1990 American National Standard. ISO/IEC 9314-3: 1990.

Regulatory Compliance

TECHNICAL DATA

The electro-optical characteristics described in the following

tables are valid only for use under the recommended operating

conditions.

Recommended Operating Conditions

Notes

45 mA for the three outputs. Load is 50

Ω into VCC –2V.

2. To maintain good LED reliability, the device should not be held in the

ON state for more than the specified time. Normal operation should

be done with 50% duty cycle.

3. To achieve proper PECL output levels the 50

Ω termination should be

done to VCC –2 V. For correct termination see the application notes.

Feature

Standard

Comments

Electromagnetic

Interference (EMI)

FCC Class B

EN 55022 Class B

CISPR 22

Noise frequency

range:30 MHz to

40 GHz

Immunity:

Electrostatic

Discharge

EN 61000-4-2

IEC 61000-4-2

Discharges of

± 15kV with an air

discharge probe on

the receptacle cause

no damage.

Immunity:

Radio Frequency

Electromagnetic

Field

EN 61000-4-3

IEC 61000-4-3

With a field strength

of 10 V/m rms, noise

frequency ranges

from 10 MHz to

1 GHz

Eye Safety

IEC 825-1

Class 1

Parameter

Symbol

Min.

Typ. Max.

Units

Ambient Temperature

070

°C

Power Supply Voltage

V

Supply Current 3.3 V

230

mA

260

Transmitter

Data Input

High Voltage

–1165

–880

mV

Data Input

Low Voltage

–1810

–1475

Threshold Voltage

–1260

Input Data Rise/Fall,

20%–80%

0.4

1.3

ns

1000

Receiver

Output Current

25

mA

Input Duty Cycle

Distortion

1.0

ns

Input Data

Dependent Jitter

Input Random Jitter

0.76

Input Center

Wavelength

1260

1380

nm

Electrical Output

50

Ω