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INTEGRATED CIRCUITS
74F5300 Fiber optic LED driver
Product specification IC15 Data Handbook 1989 Dec 13
Philips Semiconductors
Philips Semiconductors FAST Products
Prroduct specification
Fiber optic LED driver
74F5300
FEATURES
* TTL inputs * Output enable control * High current source and sink capability * Matched propagation delay times (tPLH, tPHL) * Symmetrical rise and fall times * ESD protection greater than 2000 volts * Single +5V supply * Surface mount package
APPLICATIONS
PIN CONFIGURATION
VCC 1 ENABLE 2 INPUT 3 GND 4
8 VCC 7 GND 6 OUTPUT
5 GND
SF01312
LOGIC DIAGRAM (ONE DRIVER)
VCC
* High speed serial data communication * Fiber optic data links * Local area and metropolitan area networks * Digital Television * PBX systems
ASSOCIATED PRODUCTS
3 INPUT
TTL input buffer
Linearizing circuit
Output driver amp
6 OUTPUT
2 ENABLE
* NE5210/11/12 transimpedance amplifiers * NE5214/5217 postamplifiers with link status indicator * 74F5300 fiber optic LED driver
TYPE TYPICAL PROPAGATION DELAY 2.5ns TYPICAL SUPPLY CURRENT( TOTAL) 8mA
GND VCC = Pin 1, 8 GND = Pin 4, 5, 7
SF01313
DESCRIPTION
The 74F5300 is a LED driver designed for use in fiber optic links. The 74F5300 is ideally suited for use in high speed optical high transmitter systems. The TTL input buffer accepts TTL data. A logic high on the enable pin enables the buffer to drive the output driver amplifier. The linearizing circuits ensures a constant propagation delay for tPLH and tPHL, 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 (tPLH and tPHL) and symmetrical rise and fall times. The resulting optical 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 NE5210/5211/5212 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.
74F5300
ORDERING INFORMATION
ORDER CODE DESCRIPTION COMMERCIAL RANGE VCC = 5V 10%, Tamb = 0C to +70C N74F5300N N74F5300D DWG. PKG. #
8-pin plastic DIP 8-pin plastic SO
SOT97-1 SOT96-1
INPUT AND OUTPUT LOADING AND FAN OUT TABLE
PINS Input Enable DESCRIPTION Data input Enable input 74F (U.L.) HIGH/LOW 1.0/1.0 1.0/1.0 LOAD VALUE HIGH/LOW 20A/0.6mA 20A/0.6mA
Output Current driver output 8000/266.6 160mA/160m NOTE: One (1.0) FAST unit load is defined as: 20A in the high state and 0.6mA in the low state.
1989 Dec 13
2
853-1409 98304
Philips Semiconductors FAST Products
Prroduct specification
Fiber optic LED driver
74F5300
APPLICATION FOR 50Mb/s OPTICAL TRANSMITTER
+5V 0.1 F 10 F 1 8
+5V
120pF INPUT 3 90 TTL input buffer Linearizing circuit Output driver amp 6 14 4
10 F
ENABLE
2
LED
4
5
7
SF01314
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 VCC VIN IIN VOUT IOUT Tamb Tstg Supply voltage Input voltage Input current Voltage applied to output in high output state Current applied to output in low output state Operating free air temperature range Storage temperature range PARAMETER RATING -0.5 to +7.0 -0.5 to +7.0 -30 to +5 -0.5 to VCC 240 0 to +70 -65 to +150 UNIT V V mA V mA
C C
RECOMMENDED OPERATING CONDITIONS
SYMBOL PARAMETER MIN VCC VIH VIL IIk IOH IOL Tamb Supply voltage High-level input voltage Low-level input voltage Input clamp current High-level output current Low-level output current Operating free air temperature range 0 4.5 2.0 0.8 -18 -160 160 +70 LIMITS NOM 5.0 MAX 5.5 TA = -40 to +85C UNIT V V V mA mA mA
C
1989 Dec 13
3
Philips Semiconductors FAST Products
Prroduct specification
Fiber optic LED driver
74F5300
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.) SYMBOL PARAMETER TEST CONDITIONS1 MIN VCC = MIN, VOH High-level output voltage VIL = MAX, VIH = MIN IOH = -160mA VCC = MIN, VOL Low-level output voltage VIL = MAX, VIH = MIN VIK II IIH IIL ICC Input clamp voltage Input current at maximum input voltage High-level input current Low-level input current Supply current (total) ICCH ICCL VCC = MIN, II = IIK VCC = MAX, VI = 7.0V VCC = MAX, VI = 2.7V VCC = MAX, VI = 0.5V VCC = MAX VCC = MAX 4.0 10.5 IOL = 100mA IOL = 120mA IOL = 160mA IOH = -80mA LIMITS TYP2 MAX V 3.3 3.3 3.9 3.6 V V V 0.42 0.45 0.55 -0.73 0.55 0.60 0.80 -1.2 100 20 -0.6 12 22 V V V V A A mA mA UNIT
10%VCC 5%VCC
VCC = 5V
2.5 2.8 3.0 2.0
10%VCC 10%VCC 10%VCC 10%VCC
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 VCC = 5V, Tamb = 25C. 3. The device is not short circuit protected.
AC ELECTRICAL CHARACTERISTICS
LIMITS Tamb = +25C SYMBOL PARAMETER TEST CONDITION MIN tPLH tPHL Dtpw tPS tRFS tTHL tTLH Propagation delay Input or Enable to Output Pulse width distortion1 Propagation delay skew2, 4 Rise and fall time skew3, 4 Test circuits and Waveforms 0.5 1.0 Waveform 1 Frequency = 10MHz Waveform 2 1.0 1.0 VCC = +5.0V CL = 50pF, RL = 100 TYP 2.5 2.5 0.8 0.7 0.6 1.4 2.0 MAX 5.0 5.0 1.2 1.2 1.5 3.5 4.0 0.5 1.0 Tamb = 0C to +70C VCC = +5.0V 10% MIN 1.0 1.0 MAX 5.0 5.0 1.8 1.3 1.5 4.0 4.5 ns ns ns ns ns UNIT CL = 50pF, RL = 100
Fall time 90% to 10% Rise time 10% to 90%
NOTES: 1. Dtpw is defined as the difference between input pulse width and output pulse width (0 to 3 volt swing and 50% duty cycle). 2. | tPLH actual - tPHL actual|. 3. | tTLH actual - tTHL actual|. 4. Skew times are valid only under same test conditions (temperature, VCC, loading, etc.,).
AC WAVEFORMS
For all waveforms, VM = 1.5V.
OUTPUT INPUT OR ENABLE VM tPLH VM tPHL VM tPS
OUTPUT
VM
VM OUTPUT
VM
SF01315
SF01316
Waveform 1. Propagation delay for input to output 1989 Dec 13 4
Waveform 2. Propagation delay skew
Philips Semiconductors FAST Products
Prroduct specification
Fiber optic LED driver
74F5300
TYPICAL (VCC = 5.0V) VOL VERSUS IOL FOR VARIOUS TEMPERATURES
600
70C 500 25C 0C
125C 400 -55C
IOL (mA)
300
200
100
0 0 0.2 0.4 0.6 0.8 1 1.2 1.4
VOL (V)
SF00596
1989 Dec 13
5
Philips Semiconductors FAST Products
Prroduct specification
Fiber optic LED driver
74F5300
TYPICAL (VCC = 5.0V) VOH VERSUS IOH FOR VARIOUS TEMPERATURES
VOH (V)
2.5 0 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
-50
-100
-150
IOH (mA)
-200
-250
-300
-350
-400 0C -55C 25C 70C
125C
SF00597
1989 Dec 13
6
Philips Semiconductors FAST Products
Prroduct specification
Fiber optic LED driver
74F5300
TEST CIRCUIT AND WAVEFORMS
VCC NEGATIVE PULSE VIN PULSE GENERATOR RT D.U.T. VOUT 90% VM 10% tTHL (tf ) CL RL tw VM 10% tTLH (tr ) 0V 90% AMP (V)
tTLH (tr ) 90% POSITIVE PULSE VM 10% tw
tTHL (tf ) AMP (V) 90% VM 10% 0V
Test Circuit for Totem-Pole Outputs DEFINITIONS: RL = Load resistor; see AC ELECTRICAL CHARACTERISTICS for value. CL = Load capacitance includes jig and probe capacitance; see AC ELECTRICAL CHARACTERISTICS for value. RT = Termination resistance should be equal to ZOUT of pulse generators.
Input Pulse Definition INPUT PULSE REQUIREMENTS family amplitude 74F 3.0V rep. rate 1MHz tw 500ns tTLH 2.5ns tTHL 2.5ns
SF01317
1989 Dec 13
7
Philips Semiconductors
Product specification
Fiber optic LED driver
74F5300
DIP8: plastic dual in-line package; 8 leads (300 mil)
SOT97-1
1989 Dec 13
8
Philips Semiconductors
Product specification
Fiber optic LED driver
74F5300
SO8: plastic small outline package; 8 leads; body width 3.9mm
SOT96-1
1989 Dec 13
9
Philips Semiconductors
Product specification
Fiber optic LED driver
74F5300
Data sheet status
Data sheet status Objective specification Preliminary specification Product specification Product status Development Qualification 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.
Production
[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 800-234-7381 (c) Copyright Philips Electronics North America Corporation 1998 All rights reserved. Printed in U.S.A. print code Document order number: Date of release: 10-98 9397-750-05208
Philips Semiconductors
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