INTEGRATED CIRCUITS 74F5302 Fiber optic dual LED/clock driver Product specification IC15 Data Handbook 1990 Jul 24 Philips Semiconductors Product specification Fiber optic dual LED/clock driver 74F5302 FEATURES PIN CONFIGURATION • 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 NC 1 14 D0 2 13 E0 Q0 GND 3 12 VCC GND 4 11 VCC GND 5 10 VCC Q1 6 9 D1 NC 7 8 E1 SF00591 APPLICATIONS • High speed serial data communication • Fiber optic data links • Local area and metropolitan area networks • Digital Television • PBX systems LOGIC DIAGRAM (ONE DRIVER) VCC 14 D0 TTL input buffer Linearizing circuit Output driver amp 2 Q0 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 E0 GND VCC = Pin 10, 11, 12 GND = Pin 3, 4, 5 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. ORDER CODE COMMERCIAL RANGE VCC = 5V ±10%, Tamb = 0°C to +70°C PKG DWG # 14–pin plastic DIP N74F5302N SOT27-1 14–pin plastic SO N74F5302D SOT108-1 The TTL input buffer accepts TTL data. 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. 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 20µA/0.6mA En Enable inputs 1.0/1.0 20µA/0.6mA 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. 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. July 24, 1990 SF00592 DESCRIPTION ORDERING INFORMATION DESCRIPTION 13 2 853-1410 00037 Philips Semiconductors Product specification Fiber optic dual LED/clock driver 74F5302 APPLICATION FOR 50Mb/s OPTICAL TRANSMITTER +5V 0.1 µF 10 µF 11 +5V 12 120pF D0 E0 14 90 Ω TTL input buffer Output driver amp Linearizing circuit 10 µF 2 14 Ω 4Ω LED 13 74F5302 (one driver) 3 4 5 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 VCC Supply voltage –0.5 to +7.0 V VIN Input voltage –0.5 to +7.0 V IIN Input current –30 to +5 mA VOUT Voltage applied to output in high output state –0.5 to VCC V IOUT Current applied to output in low output state 240 mA Tamb Operating free air temperature range 0 to +70 °C Tstg Storage temperature range –65 to +150 °C RECOMMENDED OPERATING CONDITIONS SYMBOL PARAMETER TA = –40 to +85°C LIMITS MIN NOM MAX UNIT VCC Supply voltage 4.5 5.0 5.5 V VIH High–level input voltage 2.0 VIL Low–level input voltage 0.8 V IIk Input clamp current –18 mA IOH High–level output current –160 mA IOL Low–level output current 160 mA Tamb Operating free air temperature range +70 °C July 24, 1990 0 3 V Philips Semiconductors Product specification Fiber optic dual LED/clock driver 74F5302 DC ELECTRICAL CHARACTERISTICS (Over recommended operating free-air temperature range unless otherwise noted.) SYMBOL TEST CONDITIONS1 PARAMETER LIMITS MIN High-level output voltage UNIT MAX ±10%VCC 2.5 ±5%VCC 2.8 3.3 3.9 V VCC = 5V 3.0 3.3 3.6 V IOH = –160mA ±10%VCC 2.0 VCC = MIN, IOL = 100mA ±10%VCC 0.42 0.55 V VIL = MAX, IOL = 120mA ±10%VCC 0.45 0.60 V VIH = MIN IOL = 160mA ±10%VCC 0.55 0.80 V -0.73 -1.2 V VCC = MIN, VOH TYP2 VIL = MAX, IOH = –80mA VIH = MIN V V VOL Low-level output voltage VIK Input clamp voltage VCC = MIN, II = IIK II Input current at maximum input voltage VCC = MAX, VI = 7.0V 100 µA IIH High–level input current VCC = MAX, VI = 2.7V 20 µA IIL Low–level input current VCC = MAX, VI = 0.5V -0.6 mA ICC Supply current (total) mA ICCH VCC = MAX 5.0 12 ICCL VCC = 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 VCC = 5V, Tamb = 25°C. 3. The device is not short circuit protected. AC ELECTRICAL CHARACTERISTICS LIMITS Tamb = +25°C SYMBOL PARAMETER TEST CONDITION Tamb = 0°C to +70°C VCC = +5.0V ± 10% VCC = +5.0V CL = 50pF, RL = 100Ω tPLH tPHL Propagation delay Dn, En, to Qn Dtpw Pulse width distortion1 tRFS Rise and fall time skew3, 4 Waveform 1 MIN TYP MAX MIN MAX 1.0 1.0 2.0 2.5 4.5 5.0 1.0 1.0 4.5 5.0 ns 0.8 1.2 1.8 ns 0.3 1.5 2.0 ns 0.9 1.3 1.6 ns 1.5 1.8 3.0 3.0 4.0 4.5 ns Frequency = 10MHz tsk (0) Output skew2, 4 Waveform 2 tTHL tTLH Fall time 90% to 10% Rise time 10% to 90% Test circuits and Waveforms UNIT CL = 50pF, RL = 100Ω 1.0 1.0 0.5 0.5 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. | tPN actual – tPM actual| for any output compared to any other output where N and M are either LH or HL. 3. | tTLH actual – tTHL actual|. 4. Skew times are valid only under same test conditions (temperature, VCC, loading, etc.,). AC WAVEFORMS Dn, En VM VM tPLH Qn Qn tsk (0) tPHL VM VM Qn VM VM SF00595 SF00594 Waveform 1. Propagation delay for input to output NOTE: For all waveforms, VM = 1.5V. July 24, 1990 Waveform 2. Output skew 4 Philips Semiconductors Product specification Fiber optic dual LED/clock driver 74F5302 TYPICAL (VCC = 5.0V) VOL VERSUS IOL FOR VARIOUS TEMPERATURES 600 70°C 25°C 500 0°C 125°C 400 –55°C IOL (mA) 300 200 100 0 0 0.2 0.4 0.6 0.8 1 1.2 1.4 VOL (V) SF00596 July 24, 1990 5 Philips Semiconductors Product specification Fiber optic dual LED/clock driver 74F5302 TYPICAL (VCC = 5.0V) VOH VERSUS IOH FOR VARIOUS TEMPERATURES VOH (V) 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 0 –50 –100 –150 IOH (mA) –200 –250 –300 –350 –400 125°C 0°C –55°C 70°C 25°C SF00597 July 24, 1990 6 Philips Semiconductors Product specification Fiber optic dual LED/clock driver 74F5302 TEST CIRCUIT AND WAVEFORMS VCC NEGATIVE PULSE VIN tw 90% VM D.U.T. RT CL RL AMP (V) VM 10% VOUT PULSE GENERATOR 90% 10% tTHL (tf ) tTLH (tr ) tTLH (tr ) tTHL (tf ) 0V AMP (V) 90% 90% POSITIVE PULSE 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. VM VM 10% Test Circuit for Totem-Pole Outputs 10% tw 0V Input Pulse Definition INPUT PULSE REQUIREMENTS family amplitude VM 74F 3.0V 1.5V rep. rate tw tTLH tTHL 1MHz 500ns 2.5ns 2.5ns SF00006 July 24, 1990 7 Philips Semiconductors Product specification Fiber optic dual LED/clock driver 74F5302 DIP14: plastic dual in-line package; 14 leads (300 mil) 1990 Jul 24 8 SOT27-1 Philips Semiconductors Product specification Fiber optic dual LED/clock driver 74F5302 SO14: plastic small outline package; 14 leads; body width 3.9 mm 1990 Jul 24 9 SOT108-1 Philips Semiconductors Product specification Fiber optic dual LED/clock driver 74F5302 Data sheet status Data sheet status Product status Definition [1] Objective specification Development This data sheet contains the design target or goal specifications for product development. Specification may change in any manner without notice. Preliminary specification Qualification 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. Product specification Production 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] 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. Copyright Philips Electronics North America Corporation 1998 All rights reserved. Printed in U.S.A. Philips Semiconductors 811 East Arques Avenue P.O. Box 3409 Sunnyvale, California 94088–3409 Telephone 800-234-7381 print code Document order number: yyyy mmm dd 10 Date of release: 10-98 9397-750-05209