Datasheet 74f5302 DATASHEETS (Philips)

INTEGRATED CIRCUITS

74F5302

Fiber optic dual LED/clock driver

Product specification
IC15 Data Handbook

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1990 Jul 24

Philips Semiconductors Product specification

74F5302Fiber optic dual LED/clock driver

FEA TURES

•TTL inputs

•Output enable control

•High current source and sink capability

•Matched propagation delay times (t

PLH

, t

)

PHL

•Symmetrical rise and fall times

•ESD protection greater than 2000 volts

•Single +5V supply

•Surface mount package

APPLICATIONS

•High speed serial data communication

•Fiber optic data links

•Local area and metropolitan area networks

•Digital Television

•PBX systems

ASSOCIATED PRODUCTS

•NE5210/1 1/12 transimpedance amplifiers

•NE5214/5217 postamplifiers with link status indicator

•74F5300 fiber optic LED driver

PIN CONFIGURATION

NC

Q0

GND
GND
GND

Q1

NC

1
2
3
4
5
6

14
13
12
11
10

9
87

SF00591

LOGIC DIAGRAM (ONE DRIVER)

V

CC

14

D0

E0

VCC = Pin 10, 11, 12
GND = Pin 3, 4, 5

TTL
input
buffer

13

Linearizing
circuit

GND

D0

E0

V

CC

V

CC

V

CC

D1
E1

Output
driver

2

Q0

amp

SF00592SF00592

TYPE

TYPICAL

PROPAGATION

TYPICAL SUPPL Y

CURRENT( TOTAL)

DELA Y

74F5302 2.5ns 8mA

ORDERING INFORMATION

ORDER CODE

DESCRIPTION COMMERCIAL RANGE

= 5V ±10%,

V

CC

= 0°C to +70°C

T

amb

PKG DWG #

14–pin plastic DIP N74F5302N SOT27-1
14–pin plastic SO N74F5302D SOT108-1

INPUT AND OUTPUT LOADING AND FAN OUT TABLE

PINS DESCRIPTION

74F (U.L.)

HIGH/LOW

Dn Data inputs 1.0/1.0 20µA/0.6mA
En Enable inputs 1.0/1.0 20µA/0.6mA
Qn Current driver output 8000/266.6 160mA/160mA

NOTE: One (1.0) FAST unit load is defined as: 20µA in the high
state and 0.6mA in the low state.

LOAD VALUE

HIGH/LOW

DESCRIPTION

The 74F5302 is a dual LED/clock driver designed for use in fiber
optic links. The 74F5302 is ideally suited for use in high speed
optical high transmitter systems. It is also ideal for use as a clock
driver.

The TTL input buffer accepts TTL data. The linearizing circuits
ensures a constant propagation delay for t

PLH

and t
the rise and fall times. The output driver amplifier is capable of
sourcing more than 160mA and sinking more than 160mA at low
impedances. The high current output driver has been designed to
deal with transmission line effects of high speed switching systems
with fast rising and falling edges. The performance of the system
can be enhanced by matching impedance at the output for proper
termination. It exhibits closely matched propagation delays (t

) and symmetrical rise and fall times. The resulting optical

t

PHL

waveform has minimal duty cycle distortion (DCD). When used with
the external pre–bias and pre–charging circuits, the response can
be tailored to a specific LED to eliminate any overshoot and to
minimize the long fall response.

Additionally, this part can be used as the transmitter in a complete
fiber optic system when combined with any of the
NE5210/521 1/5212 preamplifiers and NE5214/5217 postamplifiers
for the optical receiver. Please refer to applications note AN1121 in
the Philips Semiconductors Fiber Optic Communication Data Book
for more specific applications information.

and controls

PHL,

PLH

and

July 24, 1990 853-1410 00037

2

Philips Semiconductors Product specification

74F5302Fiber optic dual LED/clock driver

APPLICATION FOR 50Mb/s OPTICAL TRANSMITTER

0.1 µF

11 12

14

D0

13

E0

TTL
input
buffer

Linearizing
circuit

74F5302 (one driver)

+5V

Output
driver
amp

10 µF

120pF

2

4 Ω14 Ω

LED

543

90 Ω

+5V

10 µF

SF00593

ABSOLUTE MAXIMUM RATINGS

(Operation beyond the limit set forth in this table may impair the useful life of the device. Unless otherwise noted these limits are over the
operating free air temperature range.)

SYMBOL PARAMETER RATING UNIT

V
V
I

IN

V
I

OUT

T
T

CC
IN

OUT

amb

stg

Supply voltage –0.5 to +7.0 V
Input voltage –0.5 to +7.0 V
Input current –30 to +5 mA

Voltage applied to output in high output state –0.5 to V

CC

Current applied to output in low output state 240 mA
Operating free air temperature range 0 to +70
Storage temperature range –65 to +150

V

°C
°C

RECOMMENDED OPERATING CONDITIONS

SYMBOL PARAMETER LIMITS

MIN NOM MAX UNIT

V

CC

V

IH

V

IL

I

Ik

I

OH

I

OL

T

amb

July 24, 1990

Supply voltage 4.5 5.0 5.5 V
High–level input voltage 2.0 V
Low–level input voltage 0.8 V
Input clamp current –18 mA
High–level output current –160 mA
Low–level output current 160 mA
Operating free air temperature range 0 +70

3

T

= –40 to +85°C

A

°C

Philips Semiconductors Product specification

74F5302Fiber optic dual LED/clock driver

DC ELECTRICAL CHARACTERISTICS

(Over recommended operating free-air temperature range unless otherwise noted.)

SYMBOL

PARAMETER TEST CONDITIONS

VCC = MIN,

V

OH

High-level output voltage VIL = MAX, IOH = –80mA

VIH = MIN VCC = 5V 3.0 3.3 3.6 V

IOH = –160mA

VCC = MIN, IOL = 100mA

V

OL

Low-level output voltage VIL = MAX, IOL = 120mA

VIH = MIN IOL = 160mA

V

IK

I

I

I

IH

I

IL

I

CC

Input clamp voltage VCC = MIN, II = I

IK

Input current at maximum input voltage VCC = MAX, VI = 7.0V 100 µA
High–level input current VCC = MAX, VI = 2.7V 20 µA
Low–level input current VCC = MAX, VI = 0.5V -0.6 mA
Supply current (total) I

CCHVCC

I

CCLVCC

= MAX 5.0 12 mA
= MAX 18 25 mA

NOTES:

1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable type.

2. All typical values are at V

3. The device is not short circuit protected.

= 5V, T

CC

amb

= 25°C.

1

±10%V

±5%V

±10%V
±10%V
±10%V
±10%V

LIMITS UNIT

MIN TYP2MAX

2.5 V

CC

2.8 3.3 3.9 V

CC

2.0 V

CC

CC

CC

CC

0.42 0.55 V

0.45 0.60 V

0.55 0.80 V

-0.73 -1.2 V

AC ELECTRICAL CHARACTERISTICS

LIMITS

T

= +25°C T

amb

SYMBOL PARAMETER TEST CONDITION VCC = +5.0V

CL = 50pF, RL = 100Ω CL = 50pF, RL = 100Ω

MIN TYP MAX MIN MAX

t

PLH

t

PHL

D

tpw

t

RFS

t

sk (0)

t

THL

t

TLH

Propagation delay
Dn, En, to Qn

Pulse width distortion
Rise and fall time skew
Output skew2,

4

Fall time 90% to 10%
Rise time 10% to 90%

Waveform 1

1

3, 4

Frequency = 10MHz 0.8 1.2 1.8 ns

1.0

1.0

2.0

2.5

4.5

5.0

0.3 1.5 2.0 ns

Waveform 2 0.9 1.3 1.6 ns

Test circuits and

Waveforms

1.0

1.0

1.5

1.8

3.0

3.0

NOTES:

1. D

is defined as the difference between input pulse width and output pulse width (0 to 3 volt swing and 50% duty cycle).

tpw

actual – tPM actual| for any output compared to any other output where N and M are either LH or HL.

2. | t

PN

3. | t

4. Skew times are valid only under same test conditions (temperature, V

actual – t

TLH

THL

actual|.

, loading, etc.,).

CC

AC WAVEFORMS

Dn, En

V

M

t

PLH

V

M

t

PHL

Qn

V

M

t

sk (0)

= 0°C to +70°C

amb

VCC = +5.0V ± 10%

1.0

1.0

0.5

0.5

4.5

5.0

4.0

4.5

UNIT

ns

ns

Qn

V

M

Waveform 1. Propagation delay for input to output

NOTE: For all waveforms, V

= 1.5V.

M

July 24, 1990

V

M

SF00594

Qn

V

M

SF00595

Waveform 2. Output skew

4

Philips Semiconductors Product specification

74F5302Fiber optic dual LED/clock driver

TYPICAL (VCC = 5.0V) VOL VERSUS IOL FOR VARIOUS TEMPERATURES

600

70°C

500

400

IOL (mA)

300

200

100

25°C

0°C

125°C

–55°C

0

July 24, 1990

0 0.2 0.4 0.6 0.8 1 1.2 1.4

VOL (V)

SF00596

5

Philips Semiconductors Product specification

74F5302Fiber optic dual LED/clock driver

TYPICAL (VCC = 5.0V) VOH VERSUS IOH FOR VARIOUS TEMPERATURES

V

(V)

OH

I

OH

(mA)

2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9

0

–50

–100

–150

–200

–250

4

July 24, 1990

–55°C

–300

–350

–400

0°C

25°C

70°C

6

125°C

SF00597

Philips Semiconductors Product specification

74F5302Fiber optic dual LED/clock driver

TEST CIRCUIT AND WAVEFORMS

V

CC

PULSE

GENERATOR

V

IN

R

T

D.U.T.

V

OUT

R

C

L

L

Test Circuit for Totem-Pole Outputs

DEFINITIONS:

= Load resistor;

R

L

see AC ELECTRICAL CHARACTERISTICS for value.

C

= Load capacitance includes jig and probe capacitance;

L

see AC ELECTRICAL CHARACTERISTICS for value.

R

= Termination resistance should be equal to Z

T

pulse generators.

OUT

of

NEGATIVE
PULSE

POSITIVE
PULSE

family

74F

90%

10%

amplitude

t

w

V

M

10%

)

V

90%

M

t

THL (tf

t

TLH (tr

)

t

TLH (tr

t

THL (tf

t

w

Input Pulse Definition

INPUT PULSE REQUIREMENTS

V

rep. rate

M

3.0V 1.5V

1MHz 500ns

10%

)

)

90%

t

w

V

M

V

M

90%

10%

t

TLHtTHL

2.5ns 2.5ns

AMP (V)

0V

AMP (V)

0V

SF00006

July 24, 1990

7

Philips Semiconductors Product specification

74F5302Fiber optic dual LED/clock driver

DIP14: plastic dual in-line package; 14 leads (300 mil) SOT27-1

1990 Jul 24

8

Philips Semiconductors Product specification

74F5302Fiber optic dual LED/clock driver

SO14: plastic small outline package; 14 leads; body width 3.9 mm SOT108-1

1990 Jul 24

9

Philips Semiconductors Product specification

74F5302Fiber optic dual LED/clock driver

Data sheet status

Data sheet
status

Objective
specification

Preliminary
specification

Product
specification

Product
status

Development

Qualification

Production

Definition

This data sheet contains the design target or goal specifications for product development.
Specification may change in any manner without notice.

This data sheet contains preliminary data, and supplementary data will be published at a later date.
Philips Semiconductors reserves the right to make chages at any time without notice in order to
improve design and supply the best possible product.

This data sheet contains final specifications. Philips Semiconductors reserves the right to make
changes at any time without notice in order to improve design and supply the best possible product.

[1]

[1] Please consult the most recently issued datasheet before initiating or completing a design.

Definitions

Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For

detailed information see the relevant data sheet or data handbook.
Limiting values definition — Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one

or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or
at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended
periods may affect device reliability.

Application information — Applications that are described herein for any of these products are for illustrative purposes only. Philips
Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or
modification.

Disclaimers

Life support — These products are not designed for use in life support appliances, devices or systems where malfunction of these products can

reasonably be expected to result in personal injury . Philips Semiconductors customers using or selling these products for use in such applications
do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application.

Right to make changes — Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard
cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no
responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these
products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless
otherwise specified.

Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 94088–3409
Telephone [phone]

 Copyright Philips Electronics North America Corporation 1998

All rights reserved. Printed in U.S.A.

print code Date of release: 10-98
Document order number: 9397-750-05209

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