INTEGRATED CIRCUITS DATA SHEET TDA3508 Video control combination circuit with automatic cut-off control Product specification Supersedes data of April 1993 File under Integrated Circuits, IC02 1996 Oct 25 Philips Semiconductors Product specification Video control combination circuit with automatic cut-off control TDA3508 FEATURES GENERAL DESCRIPTION • Capacitive coupling of the colour difference and luminance input signals with black level clamping in the input stages The TDA3508 is an integrated circuit which performs video control functions in a PAL/SECAM decoder for negative colour difference signals −(R−Y) and −(B−Y). • Linear saturation control acting on the colour difference signals The required input signals are luminance and colour difference and a 3-level sandcastle pulse for control purposes. Linear RGB signals can be inserted from an external source. RGB output signals are available for driving the video output stages. The circuit provides automatic cut-off control of the picture tube. • (G−Y) and RGB matrix • Linear transmission of inserted signals • Equal black levels for inserted and matrixed signals • Three identical channels for the RGB signals • Linear contrast and brightness controls, operating on both the inserted and matrixed RGB signals • Peak beam current limiting input • Clamping, horizontal and vertical blanking of the three input signals controlled by a 3-level sandcastle pulse • Three DC gain controls for the RGB output signals (white point adjustment) • Emitter-follower outputs for driving the RGB output stages • Input for automatic cut-off control with compensation for leakage current of the picture tube. ORDERING INFORMATION TYPE NUMBER TDA3508 1996 Oct 25 PACKAGE NAME DIP28 DESCRIPTION plastic dual in-line package; 28 leads (600 mil) 2 VERSION SOT117-1 Philips Semiconductors Product specification Video control combination circuit with automatic cut-off control TDA3508 QUICK REFERENCE DATA All voltages referenced to pin 24 (ground). SYMBOL PARAMETER MIN. TYP. MAX. UNIT VP supply voltage (pin 6) − 12.0 − V IP supply current − 95 − mA V15(p-p) composite video input signal (pin 15) (peak-to-peak value) − 0.45 − V V18(p-p) −(B−Y) colour difference input signal (pin 18) (peak-to-peak value) − 1.33 − V V17(p-p) −(R−Y) colour difference input signal (pin 17) (peak-to-peak value) − 1.05 − V V12,13,14(b-w) inserted RGB signals (black-to-white value) (pins 12, 13 and 14) − 1.0 − V V10 3-level sandcastle pulse (pin 10) level 1 − 2.5 − V level 2 − 4.5 − V − 8.0 − V V20 control voltage for brightness (pin 20) 1.0 − 3.0 V V19 control voltage for contrast (pin 19) 2.0 − 4.3 V V16 control voltage for saturation (pin 16) 2.0 − 4.3 V Tamb operating ambient temperature 0 − 70 °C level 3 1996 Oct 25 3 4 composite video signal (0.45 Vp-p) −(B−Y) (1.33 Vp-p) −(R−Y) (1.05 Vp-p) MSA736 15 18 4.4 V 17 2.9 V CLAMPING CLAMPING CLAMPING TDA3508 (part A) (1 V) VP (+12 V) 6 10 dB Y AMPLIFIER Y B MATRIX Y G MATRIX Y R MATRIX 24 input for signal switching voltage 11 DRIVER FOR SIGNAL SWITCHES 14 control input for peak beam current limiting 25 TRESHOLD DETECTOR CURRENT SOURCE CONTRAST CONTROL CONTRAST CONTROL CONTRAST CONTROL 12 4.5 V 13 contrast control voltage (2 to 4.3 V) 19 8 7 brightness control voltage (1 to 3 V) 20 clamping pulse BRIGHTNESS CONTROL BRIGHTNESS CONTROL BRIGHTNESS CONTROL 9 blue green red Video control combination circuit with automatic cut-off control Fig.1 Block diagram (continued in Fig.2). saturation control voltage (2 to 4.3 V) 16 (B−Y) (G−Y) (R−Y) clamping pulse SATURATION CONTROL (G−Y) MATRIX SATURATION CONTROL handbook, full pagewidth 1996 Oct 25 3 x SIGNAL SWITCH signal insertion 1 V(b-w) Philips Semiconductors Product specification TDA3508 BLOCK DIAGRAM 5 10 8V SANDCASTLE DETECTOR H+V H+V 4.5 V 2.5 V 0 H lines 21 (1) clamping pulse lines 21 to 23 (1) line 23 (1) line 22 (1) line 21 (1) CONTROL AMPLIFIER CONTROL AMPLIFIER 21 COMPARATOR & V/I CONVERTER + CONTROLLED OUTPUT STAGE CONTROLLED OUTPUT STAGE CONTROLLED OUTPUT STAGE 4 control current (3x) 2 storage of leakage current information 27 SWITCHING AND CLAMPING CIRCUIT COMPARATOR MB & V/I CONVERTER MG COMPARATOR & V/I CONVERTER MR TDA3508 (part B) 28 Fig.2 Block diagram (continued from Fig.1). COUNTER & PULSE FORMER INSERTION OF BLACK CURRENT MEASURING PULSE INSERTION OF BLACK CURRENT MEASURING PULSE CONTROL AMPLIFIER 22 26 5 3 1 storage capacitors for cut-off control G B 2 V B/W 2 V B/W 2 V B/W input for voltage derived from leakage current of RL and cut-off currents (R or G or B) R blue green red MSA737 Video control combination circuit with automatic cut-off control (1) After start of vertical blanking pulse. sandcastle pulse clamping pulse BLANKING BLANKING green blue BLANKING red INSERTION OF BLACK CURRENT MEASURING PULSE handbook, full pagewidth 1996 Oct 25 23 white point adjustment (0 to 12 V) Philips Semiconductors Product specification TDA3508 Philips Semiconductors Product specification Video control combination circuit with automatic cut-off control TDA3508 PINNING SYMBOL PIN DESCRIPTION RO 1 red output CGC 2 green storage capacitor for cut-off control GO 3 green output CBC 4 blue storage capacitor for cut-off control BO 5 blue output VP 6 supply voltage (+12 V) CB 7 blue storage capacitor for brightness CG 8 green storage capacitor for brightness CR 9 red storage capacitor for brightness SC 10 FSW handbook, halfpage RO 1 28 CRC CGC 2 27 CSL GO 3 26 ACO CBC 4 25 PBL BO 5 24 GND VP 6 23 WPR sandcastle pulse input CB 7 22 WPG 11 fast switch for RGB inputs CG 8 21 WPB BI 12 blue input (external signal) CR 9 20 BRI GI 13 green input (external signal) SC 10 19 CON RI 14 red input (external signal) FSW 11 18 (B Y) Y 15 luminance input SAT 16 saturation control input BI 12 17 (R Y) −(R−Y) 17 colour difference input GI 13 16 SAT −(B−Y) 18 colour difference input RI 14 15 Y CON 19 contrast control input BRI 20 brightness control input WPB 21 white point adjustment input; blue WPG 22 white point adjustment input; green WPR 23 white point adjustment input; red GND 24 ground (0 V) PBL 25 control input for peak beam current limiting ACO 26 automatic cut-off control input CSL 27 storage capacitor for leakage current CRC 28 red storage capacitor for cut-off control 1996 Oct 25 TDA3508 MSA738 Fig.3 Pin configuration. 6 Philips Semiconductors Product specification Video control combination circuit with automatic cut-off control TDA3508 LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT VP supply voltage on pin 6 0 13.2 V Vn input voltage on pins 10, 21, 22, 23, 25 and 26 0 VP V V11 input voltage on pin 11 −0.5 +3.0 V 0 0.5VP V V16,19,20 input voltage on pins 16, 19 and 20 Vn1 voltage on pins 1 to 5, 7 to 9, 12 to 15, 17, 18, 27 and 28 I1,3,5 output current on pins 1, 3 and 5 − −3 no external DC voltage V mA I19 input current on pin 19 − 10 mA I20 input current on pin 20 − 5 mA I25 input current on pin 25 −5 − mA Ptot total power dissipation − 1.7 W Tamb operating ambient temperature 0 70 °C Tstg storage temperature −25 +150 °C Ves electrostatic handling voltage; pin 10 note 1 −500 +450 V all other pins note 1 −500 +500 V Note 1. Equivalent to discharging a 200 pF capacitor via a 0 Ω series resistor. 1996 Oct 25 7 Philips Semiconductors Product specification Video control combination circuit with automatic cut-off control TDA3508 CHARACTERISTICS VP = 12 V; V12,13,14(p-p) = 1 V; V15(p-p) = 0.45 V; V17(p-p) = 1.05 V; V18(p-p) = 1.33 V; Tamb = 25 °C; measured in application circuit of Fig.4; nominal settings of brightness, contrast, saturation and white point adjustment; all voltages referenced to ground (pin 24); unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Supply (pin 6) VP supply voltage IP supply current 10.8 12.0 13.2 V note 1 − 95 125 mA Colour difference inputs (pins 17 and 18) V17(p-p) −(R−Y) input signal (pin 17) (peak-to-peak value) for saturated colour bar with 75% of maximum amplitude − 1.05 1.48 V V18(p-p) −(B−Y) input signal (pin 18) (peak-to-peak value) for saturated colour bar with 75% of maximum amplitude − 1.33 1.88 V I17,18 input current during scanning − − 1.0 µA RI input resistance 1.0 − − MΩ V17,18 internal DC voltage due to clamping note 2 3.8 4.4 4.8 V Saturation control (pin 16) V16 input control voltages SATmin minimum saturation I16 input current maximum saturation; note 2 4.0 4.2 4.4 V nominal saturation 6 dB below maximum; note 2 2.9 3.1 3.3 V −26 dB saturation referenced 1.9 to maximum; note 2 2.1 2.3 V V16 = 1.8 V 46 50 − dB − − 20 µA (G−Y) matrix (see note 3) Luminance input (pin 15) V15(p-p) composite video input signal (peak-to-peak value) − 450 630 mV I15 input current during scanning − − 1.0 µA R15 input resistance 0.1 − − MΩ C15 input capacitance − − 5 pF V15 input DC voltage due to clamping note 2 2.5 2.9 3.3 V m linearity nominal settings 0.85 − − RGB channels SIGNAL SWITCHING INPUT (PIN 11) V11 normal state voltage; no insertion 0 − 0.4 V V11 voltage level for insertion on 0.9 − 3.0 V C11 input capacitance − − 10 pF I11 input current −100 − +450 µA 1996 Oct 25 V11 = 0 to 3 V 8 Philips Semiconductors Product specification Video control combination circuit with automatic cut-off control SYMBOL TDA3508 PARAMETER CONDITIONS MIN. TYP. MAX. UNIT SIGNAL INSERTION: RI, GI AND BI (PINS 14, 13 AND 12) V14,13,12(b-w) external RGB input signals (black-to-white value) − 1.0 1.4 V I14,13,12 input current during scanning − − 1.0 µA V14,13,12 internal DC voltage due to clamping notes 2 and 4 4.0 4.5 5.0 V maximum contrast; note 2 4.0 4.2 4.4 V nominal contrast 3 dB below maximum; note 2 3.4 3.6 3.8 V −10 dB below maximum; note 2 2.6 2.8 3.0 V Contrast control (pin 19) V19 control voltage CON minimum contrast referenced to maximum; V19 = 2 V 18 21 29 dB I19 input current V25 > 6 V − − 2.0 µA RGBdiff difference between RGB channels contrast −10 dB below maximum − − 0.6 dB note 2 5.3 5.5 5.7 V − 10 − kΩ V25 = 4.5 V 10 20 34 mA Peak beam current limiting (pin 25) V25 internal DC bias voltage R25 input resistance I19 input current at contrast control input Brightness control (pin 20) V20 control voltage note 2 1.0 − 3.0 V I20 input current no beam current limiting − − −10 µA ∆Vblk(b-w) shift of black level in the control range referenced to the luminance signal (black-to-white value) ∆V20 = 1 V − ±50 − % 95 − − % − −25 − % 115 120 125 % V21,22,23 = 5.5 V; note 5 − 100 − % V21,22,23 = 0 V; note 5 −35 −40 − % V21,22,23 = 12 V; note 5 +35 +40 − % − 20 − kΩ tracking Internal signal limiting (RGB) signal limiting referenced to nominal black luminance and nominal black level white White point adjustment (pins 21, 22 and 23); note 2 Gv RI 1996 Oct 25 AC voltage gain input resistance 9 Philips Semiconductors Product specification Video control combination circuit with automatic cut-off control SYMBOL PARAMETER TDA3508 CONDITIONS MIN. TYP. MAX. UNIT RGB outputs (emitter follower; pins 1, 3 and 5) V1,3,5 output voltage black-to-white positive 1.5 2.0 2.5 V V1,3,5 black level without automatic cut-off control V28,2,4 = 10 V; note 2 6.1 6.9 7.7 V ∆V1,3,5 difference in black level between RGB channels due to variation of contrast control − − 10 mV V1,3,5 cut-off control range I1,3,5 internal current source note 2 4.0 4.6 − V 2.0 3.0 − mA Automatic cut-off control (pin 26); notes 2, 6, 7, 8 and 9 V26 input voltage 0 − 6.5 V V26 voltage difference between cut-off current measurement and leakage current measurement 0.5 0.64 0.72 V 14 16 18 dB − − 3 dB 3 6 9 dB − − 3 dB 4 6 8 dB − − 3 dB Gain data (at nominal brightness, contrast, saturation and white point settings) Gv1,3,5-15 voltage gain with respect to luminance input (pin 15) α1,3,5-15 frequency response of luminance path Gv voltage gain with respect to colour difference inputs (pins 1 to 17 and 5 to 18) α frequency response of colour difference paths (pins 1 to 17 and 5 to 18) Gv voltage gain with respect to inserted signals (pins 1 to 14, 3 to 13 and 5 to 12) α frequency response of inserted signal paths (pins 1 to 14, 3 to 13 and 5 to 12) tr rise time of RGB output signals (pins 1, 3 and 5) − 40 − ns tf fall time of RGB output signals (pins 1, 3 and 5) − 40 − ns ∆t1,3,5 difference in transition times between R, G and B channels − 0 15 ns td delay time between signal switching and signal insertion −25 − +25 ns ∆Gv1,3,5 difference in gain between normal and signal insertion mode − − 10 % 1996 Oct 25 fi = 0 to 5 MHz fi = 0 to 2 MHz fi = 0 to 10 MHz 10 Philips Semiconductors Product specification Video control combination circuit with automatic cut-off control SYMBOL PARAMETER TDA3508 CONDITIONS MIN. TYP. MAX. UNIT Sandcastle pulse detector (pin 10) V10 the following amplitudes are required for separating the various pulses horizontal and vertical blanking; notes 10 and 11 1.0 1.5 2.0 V required pulses (H + V); note 10 2.1 2.5 2.9 V horizontal; note 10 3.0 3.5 4.0 V required pulses (H); note 10 4.1 4.5 5.0 V clamping; notes 10 and 12 6.5 7.0 7.5 V required pulses; note 10 7.6 − 12.0 V no keying; note 10 input current I10 − − 1.0 V − − −110 µA Notes 1. Maximum value <110 mA after warm-up. 2. Values are proportional to the supply voltage. 3. Matrixed according to equation V(G−Y) = −0.51V(R−Y) − 0.19V(B−Y). 4. When V11-24 < 0.4 V during clamping time, the black levels of the inserted RGB signals are clamped on the black levels of the internal RGB signals. When V11-24 > 0.9 V during clamping time, the black levels of the inserted RGB signals are clamped on an internal DC voltage (correct clamping of the external RGB signals is possible only when they are synchronous with the sandcastle pulse). 5. When pins 21, 22 and 23 are not connected, an internal bias voltage of 5.5 V is supplied. 6. Automatic cut-off control measurement occurs in the following lines after start of the vertical blanking pulse: a) line 20: measurement of leakage current (R + G + B). b) line 21: measurement of red cut-off current. c) line 22: measurement of green cut-off current. d) line 23: measurement of blue cut-off current. 7. Black level of the measured channel is nominal; the other two channels are blanked to ultra-black. 8. All three channels blanked to ultra-black. The cut-off control cycle occurs when the vertical blanking part of the sandcastle pulse contains more than 3 line pulses. The internal blanking continues until the end of the last measured line. The vertical blanking pulse is not allowed to contain more than 34 line pulses, otherwise another control cycle begins. 9. Input pin 26 switches to ground during horizontal flyback. 10. The sandcastle pulse is compared with three internal thresholds (proportional to VP) and the given levels separate the various pulses. 11. Blanked to ultra-black (−25%). 12. Pulse duration ≥3.5 µs. 1996 Oct 25 11 Philips Semiconductors Product specification Video control combination circuit with automatic cut-off control TDA3508 APPLICATION INFORMATION +200 V −B 22 µH 22 µF 560 Ω 18 kΩ −G 820 Ω 560 Ω 18 kΩ −R 820 Ω 560 Ω 18 kΩ BF869 BF869 BF869 1N4148 1N4148 1N4148 1N4148 1N4148 820 Ω 1N4148 BF423 BF423 22 pF(2) BF423 22 pF(2) 22 pF(2) +12 V 100 kΩ 1.5 kΩ 33 kΩ 1N4148 100 kΩ 1.5 kΩ BF869 100 kΩ 1.5 kΩ BF869 1.6 kΩ 10 pF(2) 33 kΩ 680 Ω 560 Ω BF869 BC558 BC558 BC558 10 pF(2) 33 kΩ 1.6 kΩ 10 pF(2) BC558 1.6 kΩ 560 Ω 1 nF dark current G B R 1N4148 100 pF 180 Ω 56 kΩ 28 1 330 nF 330 nF 5.6 kΩ 27 2 22 µF 180 Ω 3 26 4 25 5 24 6 23 1N4148 1.5 kΩ 100 nF 330 nF +12 V peak beam current limiting (actual value) 1N4148 180 Ω +12 V (VP) 22 µH +12 V (to other circuitry) 22 µF R G 10 kΩ B 10 kΩ +12 V 10 kΩ 22 nF 22 7 TDA3508 22 nF 8 21 180 kΩ 22 nF 56 kΩ 15 kΩ 9 20 10 19 brightness 0 to 12 V 910 kΩ 22 nF sandcastle pulse signal switch pulse 4.7 µF 11 1V 75 Ω B 1 V (b-w) signal insertion (1) 75 Ω (1) 240 kΩ 18 22 nF 22 nF 22 nF 12 G 1 V (b-w) 680 kΩ 17 22 nF 100 kΩ 22 nF 13 16 56 kΩ 75 Ω R 1 V (b-w) 75 Ω (1) 22 nF 100 nF 14 22 kΩ 1 kΩ 15 1 kΩ (1) contrast 0 to 12 V −(B−Y) 1.33 V (p-p) −(R−Y) 1.05 V (p-p) saturation 0 to 12 V Y (1 V composite video signal) Y delay line 1N4148 +12 V 8.2 kΩ 10 kΩ 1N4148 3.9 kΩ (1) When supplied via a 75 Ω line. (2) Capacitor value depends on circuit layout. beam current (actual value) 22 µF MSA735 Fig.4 Typical application circuit diagram using TDA3508; colour difference inputs are negative. 1996 Oct 25 12 Philips Semiconductors Product specification Video control combination circuit with automatic cut-off control TDA3508 PACKAGE OUTLINE seating plane handbook, full pagewidthdual in-line package; 28 leads (600 mil) DIP28: plastic SOT117-1 ME D A2 L A A1 c e Z w M b1 (e 1) b MH 15 28 pin 1 index E 1 14 0 5 10 mm scale DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT A max. A1 min. A2 max. b b1 c D (1) E (1) e e1 L ME MH w Z (1) max. mm 5.1 0.51 4.0 1.7 1.3 0.53 0.38 0.32 0.23 36.0 35.0 14.1 13.7 2.54 15.24 3.9 3.4 15.80 15.24 17.15 15.90 0.25 1.7 inches 0.20 0.020 0.16 0.066 0.051 0.020 0.014 0.013 0.009 1.41 1.34 0.56 0.54 0.10 0.60 0.15 0.13 0.62 0.60 0.68 0.63 0.01 0.067 Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. REFERENCES OUTLINE VERSION IEC JEDEC SOT117-1 051G05 MO-015AH 1996 Oct 25 EIAJ EUROPEAN PROJECTION ISSUE DATE 92-11-17 95-01-14 13 Philips Semiconductors Product specification Video control combination circuit with automatic cut-off control TDA3508 The device may be mounted up to the seating plane, but the temperature of the plastic body must not exceed the specified maximum storage temperature (Tstg max). If the printed-circuit board has been pre-heated, forced cooling may be necessary immediately after soldering to keep the temperature within the permissible limit. SOLDERING Introduction There is no soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. However, wave soldering is not always suitable for surface mounted ICs, or for printed-circuits with high population densities. In these situations reflow soldering is often used. Repairing soldered joints Apply a low voltage soldering iron (less than 24 V) to the lead(s) of the package, below the seating plane or not more than 2 mm above it. If the temperature of the soldering iron bit is less than 300 °C it may remain in contact for up to 10 seconds. If the bit temperature is between 300 and 400 °C, contact may be up to 5 seconds. This text gives a very brief insight to a complex technology. A more in-depth account of soldering ICs can be found in our “IC Package Databook” (order code 9398 652 90011). Soldering by dipping or by wave The maximum permissible temperature of the solder is 260 °C; solder at this temperature must not be in contact with the joint for more than 5 seconds. The total contact time of successive solder waves must not exceed 5 seconds. DEFINITIONS Data sheet status Objective specification This data sheet contains target or goal specifications for product development. Preliminary specification This data sheet contains preliminary data; supplementary data may be published later. Product specification This data sheet contains final product specifications. Limiting values 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 Where application information is given, it is advisory and does not form part of the specification. LIFE SUPPORT APPLICATIONS 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 customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale. 1996 Oct 25 14 Philips Semiconductors Product specification Video control combination circuit with automatic cut-off control NOTES 1996 Oct 25 15 TDA3508 Philips Semiconductors – a worldwide company Argentina: see South America Australia: 34 Waterloo Road, NORTH RYDE, NSW 2113, Tel. +61 2 9805 4455, Fax. +61 2 9805 4466 Austria: Computerstr. 6, A-1101 WIEN, P.O. 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Box 1041, AUCKLAND, Tel. +64 9 849 4160, Fax. +64 9 849 7811 Norway: Box 1, Manglerud 0612, OSLO, Tel. +47 22 74 8000, Fax. +47 22 74 8341 Philippines: Philips Semiconductors Philippines Inc., 106 Valero St. Salcedo Village, P.O. Box 2108 MCC, MAKATI, Metro MANILA, Tel. +63 2 816 6380, Fax. +63 2 817 3474 Poland: Ul. Lukiska 10, PL 04-123 WARSZAWA, Tel. +48 22 612 2831, Fax. +48 22 612 2327 Portugal: see Spain Romania: see Italy Russia: Philips Russia, Ul. Usatcheva 35A, 119048 MOSCOW, Tel. +7 095 247 9145, Fax. +7 095 247 9144 Singapore: Lorong 1, Toa Payoh, SINGAPORE 1231, Tel. +65 350 2538, Fax. +65 251 6500 Slovakia: see Austria Slovenia: see Italy South Africa: S.A. PHILIPS Pty Ltd., 195-215 Main Road Martindale, 2092 JOHANNESBURG, P.O. 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No. 5, 80640 GÜLTEPE/ISTANBUL, Tel. +90 212 279 2770, Fax. +90 212 282 6707 Ukraine: PHILIPS UKRAINE, 4 Patrice Lumumba str., Building B, Floor 7, 252042 KIEV, Tel. +380 44 264 2776, Fax. +380 44 268 0461 United Kingdom: Philips Semiconductors Ltd., 276 Bath Road, Hayes, MIDDLESEX UB3 5BX, Tel. +44 181 730 5000, Fax. +44 181 754 8421 United States: 811 East Arques Avenue, SUNNYVALE, CA 94088-3409, Tel. +1 800 234 7381 Uruguay: see South America Vietnam: see Singapore Yugoslavia: PHILIPS, Trg N. Pasica 5/v, 11000 BEOGRAD, Tel. +381 11 625 344, Fax.+381 11 635 777 For all other countries apply to: Philips Semiconductors, Marketing & Sales Communications, Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN, The Netherlands, Fax. +31 40 27 24825 Internet: http://www.semiconductors.philips.com © Philips Electronics N.V. 1996 SCA52 All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights. Printed in The Netherlands 537021/1200/02/pp16 Date of release: 1996 Oct 25 Document order number: 9397 750 00968