Document Outline
- FEATURES
- APPLICATIONS
- ASSOCIATED PRODUCTS
- ORDERING INFORMATION
- INPUT AND OUTPUT LOADING AND FAN OUT TABLE
- PIN CONFIGURATION
- LOGIC DIAGRAM (ONE DRIVER)
- DESCRIPTION
- APPLICATION FOR 50Mb/s OPTICAL TRANSMITTER
- ABSOLUTE MAXIMUM RATINGS
- RECOMMENDED OPERATING CONDITIONS
- DC ELECTRICAL CHARACTERISTICS
- AC ELECTRICAL CHARACTERISTICS
- AC WAVEFORMS
- TYPICAL (V CC = 5.0V) V OL VERSUS I OL FOR VARIOUS TEMPERATURES
- TYPICAL (V CC = 5.0V) V OH VERSUS I OH FOR VARIOUS TEMPERATURES
- TEST CIRCUIT AND WAVEFORMS
- PACKAGE OUTLINES
- Data sheet status
- Definitions
- Disclaimers
Philips
Semiconductors
74F5302
Fiber optic dual LED/clock driver
Product specification
IC15 Data Handbook
1990 Jul 24
INTEGRATED CIRCUITS
Philips Semiconductors
Product specification
74F5302
Fiber optic dual LED/clock driver
2
July 24, 1990
853-1410 00037
FEATURES
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
NE5210/11/12 transimpedance amplifiers
NE5214/5217 postamplifiers with link status indicator
74F5300 fiber optic LED driver
TYPE
TYPICAL
PROPAGATION
DELAY
TYPICAL SUPPLY
CURRENT( TOTAL)
74F5302
2.5ns
8mA
ORDERING INFORMATION
ORDER CODE
DESCRIPTION
COMMERCIAL RANGE
V
CC
= 5V
10%,
T
amb
= 0
C to +70
C
PKG DWG #
14pin plastic DIP
N74F5302N
SOT27-1
14pin plastic SO
N74F5302D
SOT108-1
INPUT AND OUTPUT LOADING
AND FAN OUT TABLE
PINS
DESCRIPTION
74F (U.L.)
HIGH/LOW
LOAD VALUE
HIGH/LOW
Dn
Data inputs
1.0/1.0
20
A/0.6mA
En
Enable inputs
1.0/1.0
20
A/0.6mA
Qn
Current driver output
8000/266.6
160mA/160mA
NOTE: One (1.0) FAST unit load is defined as: 20
A in the high
state and 0.6mA in the low state.
PIN CONFIGURATION
14
13
12
11
10
9
8
7
6
5
4
3
2
1
NC
V
CC
D1
E1
E0
NC
Q0
Q1
GND
GND
GND
D0
V
CC
V
CC
SF00591
LOGIC DIAGRAM (ONE DRIVER)
V
CC
= Pin 10, 11, 12
GND = Pin 3, 4, 5
Linearizing
circuit
Output
driver
amp
TTL
input
buffer
D0
E0
14
13
2
Q0
V
CC
GND
SF00592
SF00592
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
PHL,
and controls
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
PLH
and
t
PHL
) and symmetrical rise and fall times. The resulting optical
waveform has minimal duty cycle distortion (DCD). When used with
the external prebias and precharging 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
NE5210/5211/5212 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.
Philips Semiconductors
Product specification
74F5302
Fiber optic dual LED/clock driver
July 24, 1990
3
APPLICATION FOR 50Mb/s OPTICAL TRANSMITTER
Linearizing
circuit
Output
driver
amp
TTL
input
buffer
D0
E0
14
13
2
11
12
5
4
3
0.1
F
10
F
10
F
90
4
14
120pF
LED
+5V
+5V
74F5302 (one driver)
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
CC
Supply voltage
0.5 to +7.0
V
V
IN
Input voltage
0.5 to +7.0
V
I
IN
Input current
30 to +5
mA
V
OUT
Voltage applied to output in high output state
0.5 to V
CC
V
I
OUT
Current applied to output in low output state
240
mA
T
amb
Operating free air temperature range
0 to +70
C
T
stg
Storage temperature range
65 to +150
C
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
LIMITS
T
A
= 40 to +85
C
MIN
NOM
MAX
UNIT
V
CC
Supply voltage
4.5
5.0
5.5
V
V
IH
Highlevel input voltage
2.0
V
V
IL
Lowlevel input voltage
0.8
V
I
Ik
Input clamp current
18
mA
I
OH
Highlevel output current
160
mA
I
OL
Lowlevel output current
160
mA
T
amb
Operating free air temperature range
0
+70
C
Philips Semiconductors
Product specification
74F5302
Fiber optic dual LED/clock driver
July 24, 1990
4
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
SYMBOL
PARAMETER
TEST CONDITIONS
1
LIMITS
UNIT
MIN
TYP
2
MAX
V
CC
= MIN,
10%V
CC
2.5
V
V
OH
High-level output voltage
V
IL
= MAX,
I
OH
= 80mA
5%V
CC
2.8
3.3
3.9
V
V
IH
= MIN
V
CC
= 5V
3.0
3.3
3.6
V
I
OH
= 160mA
10%V
CC
2.0
V
V
CC
= MIN,
I
OL
= 100mA
10%V
CC
0.42
0.55
V
V
OL
Low-level output voltage
V
IL
= MAX,
I
OL
= 120mA
10%V
CC
0.45
0.60
V
V
IH
= MIN
I
OL
= 160mA
10%V
CC
0.55
0.80
V
V
IK
Input clamp voltage
V
CC
= MIN, I
I
= I
IK
-0.73
-1.2
V
I
I
Input current at maximum input voltage
V
CC
= MAX, V
I
= 7.0V
100
A
I
IH
Highlevel input current
V
CC
= MAX, V
I
= 2.7V
20
A
I
IL
Lowlevel input current
V
CC
= MAX, V
I
= 0.5V
-0.6
mA
I
CC
Supply current (total)
I
CCH
V
CC
= MAX
5.0
12
mA
I
CCL
V
CC
= 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
CC
= 5V, T
amb
= 25
C.
3. The device is not short circuit protected.
AC ELECTRICAL CHARACTERISTICS
LIMITS
T
amb
= +25
C
T
amb
= 0
C to +70
C
SYMBOL
PARAMETER
TEST CONDITION
V
CC
= +5.0V
V
CC
= +5.0V
10%
UNIT
C
L
= 50pF, R
L
= 100
C
L
= 50pF, R
L
= 100
MIN
TYP
MAX
MIN
MAX
t
PLH
t
PHL
Propagation delay
Dn, En
,
to Qn
Waveform 1
1.0
1.0
2.0
2.5
4.5
5.0
1.0
1.0
4.5
5.0
ns
D
tpw
Pulse width distortion
1
Frequency = 10MHz
0.8
1.2
1.8
ns
t
RFS
Rise and fall time skew
3, 4
0.3
1.5
2.0
ns
t
sk (0)
Output skew
2,
4
Waveform 2
0.9
1.3
1.6
ns
t
THL
t
TLH
Fall time 90% to 10%
Rise time 10% to 90%
Test circuits and
Waveforms
1.0
1.0
1.5
1.8
3.0
3.0
0.5
0.5
4.0
4.5
ns
NOTES:
1. D
tpw
is defined as the difference between input pulse width and output pulse width (0 to 3 volt swing and 50% duty cycle).
2. | t
PN
actual t
PM
actual| for any output compared to any other output where N and M are either LH or HL.
3. | t
TLH
actual t
THL
actual|.
4. Skew times are valid only under same test conditions (temperature, V
CC
, loading, etc.,).
AC WAVEFORMS
V
M
V
M
V
M
V
M
Qn
Dn, En
t
PLH
t
PHL
SF00594
Waveform 1. Propagation delay for input to output
V
M
V
M
Qn
tsk (0)
Qn
SF00595
Waveform 2. Output skew
NOTE: For all waveforms, V
M
= 1.5V.
Philips Semiconductors
Product specification
74F5302
Fiber optic dual LED/clock driver
July 24, 1990
5
TYPICAL (V
CC
= 5.0V) V
OL
VERSUS I
OL
FOR VARIOUS TEMPERATURES
0
100
200
300
400
500
600
0
0.2
0.4
0.6
0.8
1
1.2
1.4
V
OL
(V)
I
OL
(mA)
25
C
55
C
70
C
125
C
0
C
SF00596
Philips Semiconductors
Product specification
74F5302
Fiber optic dual LED/clock driver
July 24, 1990
6
TYPICAL (V
CC
= 5.0V) V
OH
VERSUS I
OH
FOR VARIOUS TEMPERATURES
400
350
300
250
200
150
100
50
0
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
4
V
OH
(V)
I
OH
(mA)
125
C
70
C
25
C
0
C
55
C
SF00597
Philips Semiconductors
Product specification
74F5302
Fiber optic dual LED/clock driver
July 24, 1990
7
TEST CIRCUIT AND WAVEFORMS
tw
90%
VM
10%
90%
VM
10%
90%
VM
10%
90%
VM
10%
NEGATIVE
PULSE
POSITIVE
PULSE
tw
AMP (V)
0V
0V
tTHL (tf
)
INPUT PULSE REQUIREMENTS
rep. rate
t
w
t
TLH
t
THL
1MHz
500ns
2.5ns
2.5ns
Input Pulse Definition
VCC
family
74F
D.U.T.
PULSE
GENERATOR
RL
CL
RT
VIN
VOUT
Test Circuit for Totem-Pole Outputs
DEFINITIONS:
R
L
= Load resistor;
see AC ELECTRICAL CHARACTERISTICS for value.
C
L
= Load capacitance includes jig and probe capacitance;
see AC ELECTRICAL CHARACTERISTICS for value.
R
T
= Termination resistance should be equal to Z
OUT
of
pulse generators.
tTHL (tf
)
tTLH (tr
)
tTLH (tr
)
AMP (V)
amplitude
3.0V
1.5V
V
M
SF00006
Philips Semiconductors
Product specification
74F5302
Fiber optic dual LED/clock driver
1990 Jul 24
8
DIP14:
plastic dual in-line package; 14 leads (300 mil)
SOT27-1
Philips Semiconductors
Product specification
74F5302
Fiber optic dual LED/clock driver
1990 Jul 24
9
SO14:
plastic small outline package; 14 leads; body width 3.9 mm
SOT108-1
Philips Semiconductors
Product specification
74F5302
Fiber optic dual LED/clock driver
yyyy mmm dd
10
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 940883409
Telephone 800-234-7381
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
Philips
Semiconductors
Data sheet
status
Objective
specification
Preliminary
specification
Product
specification
Product
status
Development
Qualification
Production
Definition
[1]
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.
Data sheet status
[1]
Please consult the most recently issued datasheet before initiating or completing a design.
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