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HFBR2464M

Low Cost, Miniature Fiber Optic Components with ST®, SMA, SC and FC Ports

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Typical Link Data

HFBR-0400 Series

Description

The following technical data is

taken from 4 popular links using

the HFBR-0400 series: the 5 MBd

link, Ethernet 20 MBd link,

Token Ring 32 MBd link, and the

155 MBd link. The data given

corresponds to transceiver solu-

tions combining the HFBR-0400

series components and various

recommended transceiver design

circuits using off-the-shelf

electrical components. This data

is meant to be regarded as an

example of typical link perform-

ance for a given design and does

not call out any link limitations.

Please refer to the appropriate

application note given for each

link to obtain more information.

5 MBd Link (HFBR-14XX/24X2)

Link Performance -40°C to +85°C unless otherwise specified

Parameter

Optical Power Budget

with 50/125 µm fiber

Optical Power Budget

with 62.5/125 µm fiber

Optical Power Budget

with 100/140 µm fiber

Optical Power Budget

with 200 µm fiber

Date Rate Synchronous

Asynchronous

Propagation Delay

LOW to HIGH

Propagation Delay

HIGH to LOW

System Pulse Width

Distortion

Bit Error Rate

Symbol Min.

OPB50

4.2

OPB62.5 8.0

OPB100 8.0

OPB200

12

dc

dc

tPLH

tPHL

tPLH- tPHL

BER

Typ.

9.6

15

15

20

72

46

26

Max. Units

dB

dB

dB

dB

5 MBd

2.5 MBd

ns

ns

ns

10-9

Conditions

HFBR-14X4/24X2

NA = 0.2

HFBR-14X4/24X2

NA = 0.27

HFBR-14X2/24X2

NA = 0.30

HFBR-14X2/24X2

NA = 0.37

TA = 25°C,

PR = -21 dBm Peak

Fiber cable

length = 1 m

Data Rate <5 Bd

PR > -24 dBm Peak

Reference

Note 1

Note 1

Note 1

Note 1

Note 2

Note 3,

Fig. 7

Figs. 6, 7, 8

Notes:

1. OPB at TA = -40 to 85°C, VCC = 5.0 V dc, IF ON = 60 mA. PR = -24 dBm peak.

2. Synchronous data rate limit is based on these assumptions: a) 50% duty factor modulation, e.g., Manchester I or BiPhase

Manchester II; b) continuous data; c) PLL Phase Lock Loop demodulation; d) TTL threshold.

3. Asynchronous data rate limit is based on these assumptions: a) NRZ data; b) arbitrary timing-no duty factor restriction; c) TTL

threshold.

55

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