HFBR-2531 - Agilent / Hewlett-Packard

Versatile Link

The Versatile Fiber Optic

Connection

Technical Data

HFBR-0501 Series

Features

• Low Cost Fiber Optic

Components

• Enhanced Digital Links

dc-5 MBd

• Extended Distance Links up

to 120 m at 40 kBd

• Low Current Link: 6 mA

Peak Supply Current

• Horizontal and Vertical

Mounting

• Interlocking Feature

• High Noise Immunity

• Easy Connectoring

Simplex, Duplex, and

Latching Connectors

• Flame Retardant

• Transmitters Incorporate a

660 nm Red LED for Easy

Visibility

• Compatible with Standard

TTL Circuitry

Applications

• Reduction of Lightning/Volt-

age Transient Susceptibility

• Motor Controller Triggering

• Data Communications and

Local Area Networks

• Electromagnetic

Compatibility (EMC) for

Regulated Systems: FCC,

VDE, CSA, etc.

• Tempest-Secure Data

Processing Equipment

• Isolation in Test and

Measurement Instruments

• Error Free Signalling for

Industrial and Manufactur-

ing Equipment

• Automotive Communications

and Control Networks

• Noise Immune Communica-

tion in Audio and Video

Equipment

Description

The Versatile Link series is a

complete family of fiber optic link

components for applications

requiring a low cost solution. The

HFBR-0501 series includes trans-

mitters, receivers, connectors and

cable specified for easy design.

This series of components is ideal

for solving problems with voltage

isolation/insulation, EMI/RFI

immunity or data security. The

optical link design is simplified

by the logic compatible receivers

and complete specifications for

each component. The key optical

and electrical parameters of links

configured with the HFBR-0501

family are fully guaranteed from

0° to 70°C.

A wide variety of package config-

urations and connectors provide

the designer with numerous

mechanical solutions to meet

application requirements. The

transmitter and receiver compo-

nents have been designed for use

in high volume/low cost assembly

processes such as auto insertion

and wave soldering.

Transmitters incorporate a 660

nm LED. Receivers include a

monolithic dc coupled, digital IC

receiver with open collector

Schottky output transistor. An

internal pullup resistor is avail-

able for use in the HFBR-25X1/2/

4 receivers. A shield has been

integrated into the receiver IC to

provide additional, localized noise

immunity.

Internal optics have been optim-

ized for use with 1 mm diameter

plastic optical fiber. Versatile

Link specifications incorporate

all connector interface losses.

Therefore, optical calculations for

common link applications are

simplified.

HFBR-0501 Series Part Number Guide

HFBR X5XX

1 = Transmitter

2 = Receiver

5 = 600 nm Transmitter and

Receiver Products 1 = 5 MBd High Performance Link

2 = 1 MBd High Performance Link

3 = 40 kBd Low Current/Extended Distance Link

2 = Horizontal Package 4 = 1 MBd Standard Link

3 = Vertical Package 6 = 155 MBd Receiver

7 = 155 MBd Transmitter

8 = 10 MBd High Performance Link

Link Selection Guide

(Links specified from 0 to 70°C, for plastic optical fiber unless specified.)

Signal Rate Distance (m) 25°C Distance (m) Transmitter Receiver

40 kBd 120 110 HFBR-1523 HFBR-2523

1 MBd 20 10 HFBR-1524 HFBR-2524

1 MBd 55 45 HFBR-1522 HFBR-2522

5 Mbd 30 20 HFBR-1521 HFBR-2521

Evaluation Kit

HFBR-0501 1 MBd Versatile Link:

This kit contains: HFBR-1524 Tx, HFBR-2524 Rx, polishing kit, 3 styles of plastic connectors, Bulkhead

feedthrough, 5 meters of 1 mm diameter plastic cable, lapping film and grit paper, and HFBR-0501 data

sheet.

Application Literature

Application Note 1035 (Versatile Link)

VALOX® is a registered trademark of the General Electric Corporation.

Package and Handling

Information

The compact Versatile Link pack-

age is made of a flame retardant

VALOX® UL 94 V-0 material

(UL file # E121562) and uses the

same pad layout as a standard,

eight pin dual-in-line package.

Vertical and horizontal mountable

parts are available. These low

profile Versatile Link packages

are stackable and are enclosed to

provide a dust resistant seal.

Snap action simplex, simplex

latching, duplex, and duplex

latching connectors are offered

with simplex or duplex cables.

Package Orientation

Performance and pinouts for the

vertical and horizontal packages

are identical. To provide addi-

tional attachment support for the

vertical Versatile Link housing,

the designer has the option of

using a self-tapping screw

through a printed circuit board

into a mounting hole at the

bottom of the package. For most

applications this is not necessary.

Package Housing Color

Versatile Link components and

simplex connectors are color

coded to eliminate confusion

when making connections.

Receivers are blue and transmit-

ters are gray, except for the

HFBR-15X3 transmitter, which is

black.

Handling

Versatile Link components are

auto-insertable. When wave

soldering is performed with

Versatile Link components, the

optical port plug should be left in

to prevent contamination of the

port. Do not use reflow solder

processes (i.e., infrared reflow or

vapor-phase reflow).

Nonhalogenated water soluble

fluxes (i.e., 0% chloride), not

rosin based fluxes, are recom-

mended for use with Versatile

Link components.

Versatile Link components are

moisture sensitive devices and

are shipped in a moisture sealed

bag. If the components are

exposed to air for an extended

period of time, they may require

a baking step before the solder-

ing process. Refer to the special

labeling on the shipping tube for

details.

Recommended Chemicals for

Cleaning/Degreasing

Alcohols: methyl, isopropyl,

isobutyl. Aliphatics: hexane,

heptane, Other: soap solution,

naphtha.

Do not use partially halogenated

hydrocarbons such as 1,1.1

trichloroethane, ketones such as

MEK, acetone, chloroform, ethyl

acetate, methylene dichloride,

phenol, methylene chloride, or N-

methylpyrolldone. Also, Agilent

does not recommend the use of

cleaners that use halogenated

hydrocarbons because of their

potential environmental harm.

6.8

(0.270) 10.2

(0.400)

4.2

(0.165)

1.27

(0.050)

2.5

(0.100)

0.51

(0.020)

18.8

(0.740)

2.0

(0.080)

7.71

(0.305)

0.64

(0.025)

7.62

(0.300)

2.8

(0.109) 1.85

(0.073)

0.64 (0.025) DIA.

5.1

(0.200)

3.81 (0.150) MAX.

3.56 (0.140) MIN.

Mechanical Dimensions

Horizontal Modules Vertical Modules

18.8

0.740

7.6

(0.30)

7.6

(0.30)

Level

CAUTION

This bag contains

MOISTURE-SENSITIVE

DEVICES

1. Shelf life in sealed bag: 12 months at < 40°C and < 90% Relative

Humidity (RH).

2. After this bag is opened, devices that will be subjected to wave

soldering, or equivalent processing (solder temperature < 260°C for

10 sec) must be:

a) Mounted within 72 hours at factory conditions of ≤ 30°C/60% RH.

b) Stored at ≤ 20% RH.

3. Devices require baking, before mounting, if:

a) Desiccant changes to PINK.

b) If 2a or 2b are not met.

4. If baking is required, devices may be baked outside of tube for 20

hours at 75°C.

Bag Seal Date: ______________________________________________________

(If blank, see barcode label)

Note: LEVEL defined by EIA JEDEC Standard J-STD-020

Versatile Link Printed Board Layout Dimensions

Horizontal Module Vertical Module

Interlocked (Stacked)

Assemblies (refer to

Figure 1)

Horizontal packages may be

stacked by placing units with pins

facing upward. Initially engage

the interlocking mechanism by

sliding the L bracket body from

above into the L slot body of the

lower package. Use a straight

edge, such as a ruler, to bring all

stacked units into uniform

alignment. This technique

prevents potential harm that

could occur to fingers and hands

of assemblers from the package

pins. Stacked horizontal packages

can be disengaged if necessary.

Repeated stacking and unstack-

ing causes no damage to

individual units.

To stack vertical packages, hold

one unit in each hand, with the

pins facing away and the optical

ports on the bottom. Slide the L

bracket unit into the L slot unit.

The straight edge used for

horizontal package alignment is

not needed.

Stacking Horizontal Modules

Figure 1. Interlocked (Stacked) Horizontal or Vertical Packages.

4 13 2

5 6

7.62

(0.300)

1.01 (0.040) DIA.

1.85

(0.073) MIN.

TOP VIEW

2.54

(0.100)

7.62

(0.300)

DIMENSIONS IN MILLIMETERS (INCHES).

PCB EDGE

Stacking Vertical Modules

5 MBd Link (HFBR-15X1/25X1)

System Performance 0 to 70°C unless otherwise specified.

Parameter Symbol Min. Typ. Max. Units Conditions Ref.

High Data Rate dc 5 MBd BER ≤10-9, PRBS:27-1

Link Distance 19 m IFdc = 60 mA Fig. 3

(Standard Cable) 27 48 m IFdc = 60 mA, 25°C Note 3

Link Distance 22 m IFdc = 60 mA Fig. 4

(Improved Cable) 27 53 m IFdc = 60 mA, 25°C Note 3

Propagation tPLH 80 140 ns RL = 560 Ω, CL = 30 pF Fig. 5, 8

Delay tPHL 50 140 ns fiber length = 0.5 m Notes 1, 2

-21.6 ≤PR ≤-9.5 dBm

Pulse Width tD30 ns PR = -15 dBm Fig. 5, 7

Distortion tPLH-tPHL RL = 560 Ω, CL = 30 pF

Notes:

1. The propagation delay for one metre of cable is typically 5 ns.

2. Typical propagation delay is measured at PR = -15 dBm.

3. Estimated typical link life expectancy at 40°C exceeds 10 years at 60 mA.

Figure 2. Typical 5 MBd Interface Circuit.

Figure 4. Guaranteed System Performance with Improved

Cable (HFBR-15X1/25X1).

Figure 3. Guaranteed System Performance with Standard

Cable (HFBR-15X1/25X1).

Performance

5 MBd

501020304050

I – FORWARD CURRENT (mA)

– CABLE LENGTH – METRES

25°C

0°C–70°C

OVERDRIVE

UNDERDRIVE

50 1020 304050

I – FORWARD CURRENT (mA)

– CABLE LENGTH – METRES

OVERDRIVE

UNDERDRIVE

25°C

0°C–70°C

Figure 5. 5 MBd Propagation Delay Test Circuit.

Figure 8. Typical Link Propagation Delay vs. Optical Power.Figure 7. Typical Link Pulse Width Distortion vs.

Optical Power.

Figure 6. Propagation Delay Test Waveforms.

– PULSE WIDTH DISTORTION – ns

-25

500

200

– INPUT OPTICAL POWER – dBm

-20 -15 -5

400

100

300

-10 0

70°C

25°C

0°C

HFBR-15X1/25X1

HFBR-15X2/25X2

HFBR-15X4/25X4

70°C

25°C

0°C

– PROPAGATION DELAY – ns

-25

500

200

– INPUT OPTICAL POWER – dBm

-20 -15 -5

400

100

300

-10 0

HFBR-15X1/25X1

HFBR-15X2/25X2

HFBR-15X4/25X4

pLH

pHL

pLH

Absolute Maximum Ratings

Parameter Symbol Min. Max. Units Reference

Storage Temperature TS–40 +85 °C

Operating Temperature T

A–40 +85 °C

Lead Soldering Cycle Temp. 260 °C Note 1

Time 10 sec

Forward Input Current IFPK 1000 mA Note 2, 3

IFdc 80

Reverse Input Voltage VBR 5V

Notes:

1. 1.6 mm below seating plane.

2. Recommended operating range between 10 and 750 mA.

3. 1 µs pulse, 20 µs period.

Pin # Function

1 Anode

2 Cathode

3 Open

4 Open

5 Do not connect

8 Do not connect

Note: Pins 5 and 8 are for mounting and

retaining purposes only. Do not

electrically connect these pins.

HFBR-15X1 Transmitter

All HFBR-15XX LED transmitters are classified as IEC 825-1 Accessible

Emission Limit (AEL) Class 1 based upon the current proposed draft scheduled

to go into effect on January 1, 1997. AEL Class 1 LED devices are considered

eye safe. Contact your local Agilent sales representative for more information.

ANODE 1

CATHODE 2

N.C. 3

N.C. 4

8 DO NOT CONNECT

5 DO NOT CONNECT

Transmitter Electrical/Optical Characteristics 0°C to 70°C unless otherwise specified.

Parameter Symbol Min. Typ.[5] Max. Units Conditions Ref.

Transmitter Output PT-16.5 -7.6 dBm IFdc = 60 mA Notes 1, 2

-14.3 -8.0 dBm IFdc = 60 mA, 25°C

Output Optical Power ∆PT/∆T -0.85 %/°C

Temperature Coefficient

Peak Emission λPK 660 nm

Wavelength

Forward Voltage VF1.45 1.67 2.02 V IFdc = 60 mA

Forward Voltage ∆VF/∆T -1.37 mV/°C Fig. 9

Temperature Coefficient

Effective Diameter D 1 mm

Numerical Aperture NA 0.5

Reverse Input Breakdown VBR 5.0 11.0 V IFdc = 10 µA,

Voltage TA = 25°C

Diode Capacitance CO86 pF VF = 0, f = MHz

Rise Time tr80 ns 10% to 90%, Note 3

Fall Time tf40 ns

Notes:

1. Measured at the end of 0.5 m standard fiber optic cable with large area detector.

2. Optical power, P (dBm) = 10 Log [P(µW)/1000 µW].

3. Rise and fall times are measured with a voltage pulse driving the transmitter and a series connected 50 Ω load. A wide bandwidth

optical to electrical waveform analyzer, terminated to a 50 Ω input of a wide bandwidth oscilloscope, is used for this response time

measurement.

IF = 60 mA

Figure 9. Typical Forward Voltage vs. Drive Current. Figure 10. Normalized Typical Output Power vs. Drive

Current.

Optical Power

– FORWARD VOLTAGE – V

1.8

1.6

1.4

Fdc

– TRANSMITTER DRIVE CURRENT (mA)

1.7

1.5

100

70°C

25°C

0°C

– NORMALIZED OUTPUT POWER – dB

-5

-20

Fdc

– TRANSMITTER DRIVE CURRENT (mA)

-15

100

-10

Receiver Electrical/Optical Characteristics

0°C to 70°C, 4.75 V ≤VCC ≤5.25 V unless otherwise specified

Parameter Symbol Min. Typ. Max. Units Conditions Ref.

Input Optical Power PR(L) –21.6 –9.5 dBm VOL = 0.5 V Notes 1,

Level for Logic “0” IOL = 8 mA 2, 4

–21.6 –8.7 VOL = 0.5 V

IOL = 8 mA, 25°C

Input Optical Power PR(H) –43 dBm VOL = 5.25 V Note 1

Level for Logic “1” IOH ≤250 µA

High Level Output Current IOH 5 250 µAV

= 18 V, PR = 0 Note 3

Low Level Output Current VOL 0.4 0.5 V IOL = 8 mA, Note 3

PR = PR(L)MIN

High Level Supply ICCH 3.5 6.3 mA VCC = 5.25 V, Note 3

Current PR = 0

Low Level Supply Current ICCL 6.2 10 mA VCC = 5.25 V Note 3

PR = -12.5 dBm

Effective Diameter D 1 mm

Numerical Aperture NA 0.5

Internal Pull-up Resistor RL680 1000 1700 Ω

Notes:

1. Optical flux, P (dBm) = 10 Log [P (µW)/1000 µW].

2. Measured at the end of the fiber optic cable with large area detector.

3. RL is open.

4. Pulsed LED operation at IF > 80 mA will cause increased link tPLH propagation delay time. This extended tPLH time contributes to

increased pulse width distortion of the receiver output signal.

Absolute Maximum Ratings

Parameter Symbol Min. Max. Units Reference

Storage Temperature TS–40 +85 °C

Operating Temperature T

A–40 +85 °C

Lead Soldering Cycle Temp. 260 °C Note 1

Time 10 sec

Supply Voltage VCC –0.5 7 V Note 2

Output Collector Current IOAV 25 mA

Output Collector Power Dissipation POD 40 mW

Output Voltage VO–0.5 18 V

Pull-up Voltage VP–5 VCC V

Fan Out (TTL) N 5

Notes:

1. 1.6 mm below seating plane.

2. It is essential that a bypass capacitor 0.01 µF be connected from pin 2 to pin 3 of the receiver. Total lead length between both ends

of the capacitor and the pins should not exceed 20 mm.

Pin # Function

2 Ground

5 Do not connect

8 Do not connect

Note: Pins 5 and 8 are for mounting and

retaining purposes only. Do not

electrically connect these pins.

HFBR-25X1 Receiver

DO NOT CONNECT 5

DO NOT CONNECT 8

GROUND

1000 Ω

1 MBd Link

(High Performance HFBR-15X2/25X2, Standard HFBR-15X4/25X4)

System Performance Under recommended operating conditions unless otherwise specified.

Parameter Symbol Min. Typ. Max. Units Conditions Ref.

High Data Rate dc 1 MBd BER ≤10-9, PRBS:27-1

Link Distance 39 m IFdc = 60 mA Fig. 14

(Standard Cable) 47 70 m IFdc = 60 mA, 25°C Notes 1,

3, 4

Link Distance 45 m IFdc = 60 mA Fig. 15

(Improved Cable) 56 78 m IFdc = 60 mA, 25°C Notes 1,

3, 4

Propagation tPLH 180 250 ns RL = 560 Ω, CL = 30 pF Fig. 16, 18

Delay tPHL 100 140 ns I = 0.5 metre Notes 2, 4

PR = -24 dBm

Pulse Width tD80 ns PR = -24 dBm Fig. 16, 17

Distortion tPLH-tPHL RL = 560 Ω, CL = 30 pF Note 4

Performance

1 MBd

Parameter Symbol Min. Typ. Max. Units Conditions Ref.

Standard Data Rate dc 1 MBd BER ≤10-9, PRBS:27-1

Link Distance 8 m IFdc = 60 mA Fig. 12

(Standard Cable) 17 43 m IFdc = 60 mA, 25°C Notes 1,

3, 4

Link Distance 10 m IFdc = 60 mA Fig. 13

(Improved Cable) 19 48 m IFdc = 60 mA, 25°C Notes 1,

3, 4

Propagation tPLH 180 250 ns RL = 560 Ω, CL = 30 pF Fig. 16, 18

Delay tPHL 100 140 ns I = 0.5 metre Notes 2, 4

PR = -20 dBm

Pulse Width tD80 ns PR = -20 dBm Fig. 16, 17

Distortion tPLH-tPHL RL = 560 Ω, CL = 30 pF Note 4

Notes:

1. For IFPK > 80 mA, the duty factor must be such as to keep IFdc ≤80 mA. In addition, for IFPK > 80 mA, the following rules for

pulse width apply:

IFPK ≤160 mA: Pulse width ≤1 ms

IFPK > 160 mA: Pulse width ≤1 µS, period ≥20 µS.

2. The propagation delay for one meter of cable is typically 5 ns.

3. Estimated typical link life expectancy at 40°C exceeds 10 years at 60 mA.

4. Pulsed LED operation at IFPK > 80 mA will cause increased link tPLH propagation delay time. This extended tPLH time contributes

to increased pulse width distortion of the receiver output signal.

1 MBd

Figure 11. Required 1 MBd Interface Circuit.

Figure 15. Guaranteed System Performance for the

HFBR-15X2/25X2 Link with Improved Cable.

Figure 14. Guaranteed System Performance for the

HFBR-15X2/25X2 Link with Standard Cable.

Figure 13. Guaranteed System Performance for the

HFBR-15X4/25X4 Link with Improved Cable.

Figure 12. Guaranteed System Performance for the

HFBR-15X4/25X4 Link with Standard Cable.

05 2010 2515

I – FORWARD CURRENT (mA)

– CABLE LENGTH – METRES

HFBR-15X4/25X4

0°C–70°C

25°C

02010 30

I – FORWARD CURRENT (mA)

– CABLE LENGTH – METRES

HFBR-15X4/25X4

0°C–70°C

25°C

100

50 1020 304050

– FORWARD CURRENT (mA)

– CABLE LENGTH – METRES

UNDERDRIVE

25°C

0°C–70°C

100

501020304050

– FORWARD CURRENT (mA)

– CABLE LENGTH – METRES

25°C

0°C–70°C

UNDERDRIVE

The HFBR-25X2 receiver can not be overdriven when using the

required interface circuit shown in Figure 11.

Figure 17. Pulse Width Distortion vs.

Optical Power.

Figure 16. 1 MBd Propagation Delay Test Circuit.

Figure 19. Propagation Delay Test

Waveforms.

Figure 18. Typical Link Propagation

Delay vs. Optical Power.

– PULSE WIDTH DISTORTION – ns

-25

500

200

– INPUT OPTICAL POWER – dBm

-20 -15 -5

400

100

300

-10 0

70°C

25°C

0°C

HFBR-15X1/25X1

HFBR-15X2/25X2

HFBR-15X4/25X4

70°C

25°C

0°C

– PROPAGATION DELAY – ns

-25

500

200

– INPUT OPTICAL POWER – dBm

-20 -15 -5

400

100

300

-10 0

HFBR-15X1/25X1

HFBR-15X2/25X2

HFBR-15X4/25X4

pLH

pHL

pLH

Pin # Function

1 Anode

2 Cathode

3 Open

4 Open

5 Do not connect

8 Do not connect

Note: Pins 5 and 8 are for mounting and

retaining purposes only. Do not

electrically connect these pins.

HFBR-15X2/15X4 Transmitters

All HFBR-15XX LED transmitters are classified as IEC 825-1 Accessible

Emission Limit (AEL) Class 1 based upon the current proposed draft scheduled

to go into effect on January 1, 1997. AEL Class 1 LED devices are considered

eye safe. Contact your Agilent sales representative for more information.

Transmitter Electrical/Optical Characteristics 0°C to 70°C unless otherwise specified.

For forward voltage and output power vs. drive current graphs.

Parameter Symbol Min. Typ. Max. Units Conditions Ref.

Transmitter HFBR-15X2 PT–13.6 –4.5 dBm IFdc = 60 mA

–11.2 –5.1 IFdc = 60 mA, 25°C

HFBR-15X4 PT–17.8 –4.5 dBm IFdc = 60 mA

–15.5 –5.1 IFdc = 60 mA, 25°C

Output Optical Power ∆PT/∆T –0.85 %/°C

Temperature Coefficient

Peak Emission Wavelength λPK 660 nm

Forward Voltage VF1.45 1.67 2.02 V IFdc = 60 mA

Forward Voltage ∆VF/∆T –1.37 mV/°C Fig. 11

Temperature Coefficient

Effective Diameter DT1mm

Numerical Aperture NA 0.5

Reverse Input Breakdown VBR 5.0 11.0 V IFdc = 10 µA,

Voltage T

A = 25°C

Diode Capacitance CO86 pF VF = 0, f = 1 MHz

Rise Time tr80 ns 10% to 90%, Note 1

Fall Time tf40 ns

Note:

1. Rise and fall times are measured with a voltage pulse driving the transmitter and a series connected 50 Ω load. A wide bandwidth

optical to electrical waveform analyzer, terminated to a 50 Ω input of a wide bandwidth oscilloscope, is used for this response time

measurement.

IF = 60 mA

Output

Optical

Power

ANODE 1

CATHODE 2

N.C. 3

N.C. 4

8 DO NOT CONNECT

5 DO NOT CONNECT

Absolute Maximum Ratings

Parameter Symbol Min. Max. Units Reference

Storage Temperature TS–40 +85 °C

Operating Temperature TA–40 +85 °C

Lead Soldering Cycle Temp. 260 °C Note 1

Time 10 sec

Forward Input Current IFPK 1000 mA Note 2, 3

IFdc 80

Reverse Input Voltage VBR 5V

Notes:

1. 1.6 mm below seating plane.

2. Recommended operating range between 10 and 750 mA.

3. 1 µs pulse, 20 µs period.

Receiver Electrical/Optical Characteristics 0°C to 70°C, 4.75 V ≤VCC ≤5.25 V unless otherwise

specified.

Parameter Symbol Min. Typ. Max. Units Conditions Ref.

Receiver HFBR-2522 PR(L) –24 dBm VOL = 0 V Notes 1, 2, 3

IOL = 8 mA

HFBR-2524 –20 Note 4

Optical Input Power PR(H) -43 dBm VOH = 5.25 V

Level Logic 1 IOH = ≤250 µA

High Level Output Current IOH 5 250 µAV

= 18 V, PR = 0 Note 5

Low Level Output Voltage VOL 0.4 0.5 V IOL = 8 mA Note 5

PR = PR(L)MIN

High Level Supply Current ICCH 3.5 6.3 mA VCC = 5.25 V, Note 5

PR = 0

Low Level Supply Current ICCL 6.2 10 mA VCC = 5.25 V, Note 5

PR = -12.5 dBm

Effective Diameter D 1 mm

Numerical Aperture NA 0.5

Internal Pull-up Resistor RL680 1000 1700 Ω

Notes:

1. Measured at the end of the fiber optic cable with large area detector.

2. Pulsed LED operation at IF > 80 mA will cause increased link tPLH propagation delay time. This extended tPLH time contributes to

increased pulse width distortion of the receiver output signal.

3. The LED drive circuit of Figure 11 is required for 1 MBd operation of the HFBR-25X2/25X4.

4. Optical flux, P (dBm) = 10 Log [P(µW)/1000 µW].

5. RL is open.

Absolute Maximum Ratings

Parameter Symbol Min. Max. Units Reference

Storage Temperature TS–40 +85 °C

Operating Temperature TA–40 +85 °C

Lead Soldering Cycle Temp. 260 °C Note 1

Time 10 sec

Supply Voltage VCC –0.5 7 V Note 2

Output Collector Current IOAV 25 mA

Output Collector Power Dissipation POD 40 mW

Output Voltage VO–0.5 18 V

Pull-up Voltage VP–5 VCC V

Fan Out (TTL) N 5

Notes:

1. 1.6 mm below seating plane.

2. It is essential that a bypass capacitor 0.01 µF be connected from pin 2 to pin 3 of the receiver. Total lead length between both ends

of the capacitor and the pins should not exceed 20 mm.

Pin # Function

2 Ground

5 Do not connect

8 Do not connect

Note: Pins 5 and 8 are for mounting and

retaining purposes only. Do not

electrically connect these pins.

HFBR-25X2/25X4 Receivers

Optical Input

Power Level

Logic 0

DO NOT CONNECT 5

DO NOT CONNECT 8

GROUND

1000 Ω

40 kBd Link

System Performance Under recommended operating conditions unless otherwise specified.

Parameter Symbol Min. Typ. Max. Units Conditions Ref.

Data Rate dc 40 kBd BER ≤10-9, PRBS: 27 - 1

Link Distance 13 41 m IFdc = 2 mA Fig. 21

(Standard Cable) 94 138 m IFdc = 60 mA Note 1

Link Distance 15 45 m IFdc = 2 mA Fig. 22

(Improved Cable) 111 154 m IFdc = 60 mA Note 1

Propagation tPLH 4µsR

= 3.3 kΩ, CL = 30 pF Fig. 22, 25

Delay tPHL 2.5 µsP

= -25 dBm, 1 m fiber Note 2

Pulse Width tD7µs -39 ≤PR≤- 14 dBm Fig. 23, 24

Distortion tPLH-tPHL RL = 3.3 kΩ, CL = 30 pF

Notes:

1. Estimated typical link life expectancy at 40°C exceeds 10 years at 60 mA.

2. The propagation delay for one metre of cable is typically 5 ns.

Figure 20. Typical 40 kBd Interface Circuit.

Figure 22. Guaranteed System Performance with Improved

Cable.

Figure 21. Guaranteed System Performance with

Standard Cable.

0 1020304050

I – FORWARD CURRENT (mA)

– CABLE LENGTH – METRES

HFBR-15X3/25X3

0°C–70°C

25°C

70 80 90 100

01020304050

I – FORWARD CURRENT (mA)

– CABLE LENGTH – METRES

60 70 80 90 100

2110

HFBR-15X3/25X3

0°C–70°C

25°C

Figure 23. 40 kBd Propagation Delay Test Circuit.

Figure 26. Propagation Delay Test Waveforms.

Figure 25. Typical Link Propagation Delay vs. Optical

Power.

Figure 24. Typical Link Pulse Width Distortion vs.

Optical Power.

-40 -28-34 -10

t – PULSE WIDTH DISTORTION – µs

0-22 -16

P – INPUT OPTICAL POWER, dBm

-40 -28-34 -10

t – PROPAGATION DELAY – µs

0-22 -16

P – INPUT OPTICAL POWER, dBm

tPLH

tPHL

Transmitter Electrical/Optical Characteristics 0°C to 70°C unless otherwise specified.

For forward voltage and output power vs. drive current graphs.

Parameter Symbol Min. Typ. Max. Units Conditions Ref.

Transmitter Output PT–11.2 –5.1 dBm IFdc = 60 mA, 25°C Notes 3, 4

Optical Power –13.6 –4.5 IFdc = 60 mA

–35.5 IFdc = 2 mA, 0-70°C Fig. 9, 10

Output Optical Power ∆PT/∆T –0.85 %/°C

Temperature Coefficient

Peak Emission λPK 660 nm

Wavelength

Forward Voltage VF1.45 1.67 2.02 V IFdc = 60 mA

Forward Voltage ∆VF/∆T –1.37 mV/°C Fig. 18

Temperature Coefficient

Effective Diameter D 1 mm

Numerical Aperture NA 0.5

Reverse Input Breakdown VBR 5.0 11.0 V IFdc = 10 µA,

Voltage TA = 25°C

Diode Capacitance CO86 pF VF = 0, f = 1 MHz

Rise Time tr80 ns 10% to 90%, Note 1

Fall Time tf40

Note:

1. Rise and fall times are measured with a voltage pulse driving the transmitter and a series connected 50 Ω load. A wide bandwidth

optical to electrical waveform analyzer, terminated to a 50 Ω input of a wide bandwidth oscilloscope, is used for this response time

measurement.

Pin # Function

1 Anode

2 Cathode

3 Open

4 Open

5 Do not connect

8 Do not connect

Note: Pins 5 and 8 are for mounting and

retaining purposes only. Do not

electrically connect these pins.

HFBR-15X3 Transmitter

All HFBR-15XX LED transmitters are classified as IEC 825-1 Accessible

Emission Limit (AEL) Class 1 based upon the current proposed draft scheduled

to go into effect on January 1, 1997. AEL Class 1 LED devices are considered

eye safe. Contact your Agilent sales representative for more information.

IF = 60 mA

ANODE 1

CATHODE 2

N.C. 3

N.C. 4

8 DO NOT CONNECT

5 DO NOT CONNECT

Absolute Maximum Ratings

Parameter Symbol Min. Max. Units Reference

Storage Temperature TS–40 +85 °C

Operating Temperature T

A–40 +85 °C

Lead Soldering Cycle Temp. 260 °C Note 1

Time 10 sec

Forward Input Current IFPK 1000 mA Note 2, 3

IFdc 80

Reverse Input Voltage VBR 5V

Notes:

1. 1.6 mm below seating plane.

2. Recommended operating range between 10 and 750 mA.

3. 1 µs pulse, 20 µs period.

Absolute Maximum Ratings

Parameter Symbol Min. Max. Units Reference

Storage Temperature TS–40 +85 °C

Operating Temperature T

A–40 +85 °C

Lead Soldering Cycle Temp. 260 °C Note 1

Time 10 sec

Supply Voltage VCC –0.5 7 V Note 2

Average Output Collector Current IO–1 5 mA

Output Collector Power Dissipation POD 25 mW

Output Voltage VO–0.5 7 V

Notes:

1. 1.6 mm below seating plane.

2. It is essential that a bypass capacitor 0.01 µF be connected from pin 2 to pin 3 of the receiver.

Pin # Function

2 Ground

3 Open

5 Do not connect

8 Do not connect

Note: Pins 5 and 8 are for mounting and

retaining purposes only. Do not

electrically connect these pins.

HFBR-25X3 Receiver

Receiver Electrical/Optical Characteristics 0°C to 70°C, 4.5 V ≤VCC ≤5.5 V unless otherwise

specified.

Parameter Symbol Min. Typ. Max. Units Conditions Ref.

Input Optical Power PR(L) –39 –13.7 dBm VO = VOL, IOL = 3.2 mA Notes 1,

Level Logic 0 –39 –13.3 VO = VOL,

IOH = 8 mA, 25°C

Input Optical Power PR(H) –53 dBm VOH = 5.5 V Note 3

Level Logic 1 IOH = ≤40 µA

High Level Output Voltage VOH 2.4 V IO = -40 µA, PR = 0 µW

Low Level Output Voltage VOL 0.4 V IOL = 3.2 mA Note 4

PR = PR(L)MIN

High Level Supply Current ICCH 1.2 1.9 mA VCC = 5.5 V, PR = 0 µW

Low Level Supply Current ICCL 2.9 3.7 mA VCC = 5.5 V, Note 4

PR = PRL (MIN)

Effective Diameter D 1 mm

Numerical Aperture NA 0.5

Notes:

1. Measured at the end of the fiber optic cable with large area detector.

2. Optical flux, P (dBm) = 10 Log P(µW)/1000 µW.

3. Because of the very high sensitivity of the HFBR-25X3, the digital output may switch in response to ambient light levels when a

cable is not occupying the receiver optical port. The designer should take care to filter out signals from this source if they pose a

hazard to the system.

4. Including current in 3.3 k pull-up resistor.

2, 3

DO NOT CONNECT 5

DO NOT CONNECT 8

OPEN

GROUND

www.semiconductor.agilent.com

Data subject to change.

June 12, 2001

Obsoletes 5968-1712E

5988-1765EN