INTEGRATED CIRCUITS DATA SHEET SAA4995WP PANorama-IC (PAN-IC) Preliminary specification File under Integrated Circuits, IC02 1997 Jun 10 Philips Semiconductors Preliminary specification PANorama-IC (PAN-IC) SAA4995WP FEATURES GENERAL DESCRIPTION • Horizontal sample rate conversion in both zoom and compress direction, with a sample rate conversion factor between 0.5 and 2 (in 384 steps) The PAN-IC is an add-on IC to be used, for example, between analog-to-digital conversion and a serial (field) memory. The device performs the following tasks: • Dynamic sample rate conversion for panorama mode display e.g. 4 : 3 material on a 16 : 9 display • Linear horizontal sample rate conversion in both zoom and compress direction, with a sample rate conversion factor between 0.5 and 2 • Dynamic sample rate conversion for amaronap mode display of e.g. 16 : 9 material on a 4 : 3 display • Dynamic sample rate conversion for panorama mode display of e.g. 4 : 3 material on a 16 : 9 display • Operates with 1fh and 2fh • Dynamic sample rate conversion for amaronap mode display of e.g. 16 : 9 material on a 4 : 3 display. • Programmable via microcontroller SNERT (Synchronous No parity Eight bit Receive Transmit) bus. The PAN-IC has the ability to increase the data rate from the ADC to a maximum of twice the data rate at the output. To achieve this a clock rate at twice the normal output clock rate is needed to write data to the memory. All actions to generate a lower data rate, produces disable cycles in Write Enable (WE). QUICK REFERENCE DATA SYMBOL PARAMETER MIN. TYP. MAX. UNIT VDD supply voltage 4.5 5 5.5 V IDD supply current − 110 − mA fCLK operating clock frequency − − 33 MHz Tamb operating ambient temperature 0 − 70 °C ORDERING INFORMATION PACKAGE TYPE NUMBER NAME SAA4995WP 1997 Jun 10 PLCC44 DESCRIPTION plastic leaded chip carrier; 44 leads 2 VERSION SOT187-2 Philips Semiconductors Preliminary specification PANorama-IC (PAN-IC) SAA4995WP BLOCK DIAGRAM handbook, full pagewidth CL16 CLK 5 YI7 VDD1 GND1 VDD2 GND2 VDD3 GND3 10 12 15 16 33 30 31 37 to 44 SECAM NOTCH to YI0 MUX CL16 UI1/UI0 and VI1/VI0 notch VDD4 GND4 6 32 VPD FRONT-END VPD BACK-END 29 to 22 VPD FRONT-END VPD BACK-END 21 to 18 YO7 to YO0 CLK 1 to 4 VO0/VO1 and UO0/UO1 SAA4995WP CL16 CLK '0' C1 ∆UV MUX INTEGRATOR + INTEGRATOR ∆Y DTO C2 C0 17 SNDA SNCL VRST 14 notch init 13 SPL out-phase X2I X2r X1I X1r CLK X0r CL16 in-phase LINE CONTROL X0I WEI 7 11 34 35 36 WEod T1 T0 C0 C1 SNERT BUS INTERFACE C2 8 TEST Fig.1 Block diagram. 1997 Jun 10 WEO 3 9 SCANIN MGK176 Philips Semiconductors Preliminary specification PANorama-IC (PAN-IC) SAA4995WP PINNING SYMBOL PIN SYMBOL DESCRIPTION PIN DESCRIPTION UI1 1 U input bit 1 YO2 24 luminance output bit 2 UI0 2 U input bit 0 YO3 25 luminance output bit 3 VI1 3 V input bit 1 YO4 26 luminance output bit 4 VI0 4 V input bit 0 YO5 27 luminance output bit 5 CL16 5 half system clock YO6 28 luminance output bit 6 VDD4 6 supply voltage 4 YO7 29 luminance output bit 7 WEI 7 write enable input GND3 30 ground 3 31 system clock 32 ground 4 TEST 8 test mode switch CLK SCANIN 9 input for scan chain GND4 VDD1 10 supply voltage 1 VDD3 33 supply voltage 3 SNDA 34 data input from interface SNERT bus SNCL 35 clock input from interface SNERT bus VRST 36 reset input in the vertical blanking interval YI7 37 luminance input bit 7 YI6 38 luminance input bit 6 YI5 39 luminance input bit 5 YI4 40 luminance input bit 4 YI3 41 luminance input bit 3 YI2 42 luminance input bit 2 YI1 43 luminance input bit 1 YI0 44 luminance input bit 0 T0 11 test mode switch 0 GND1 12 ground 1 T1 13 test mode switch 1 WEod 14 write enable odd samples VDD2 15 supply voltage 2 GND2 16 ground 2 WEO 17 write enable output VO0 18 V output bit 0 VO1 19 V output bit 1 UO0 20 U output bit 0 UO1 21 U output bit 1 YO0 22 luminance output bit 0 YO1 23 luminance output bit 1 1997 Jun 10 4 Philips Semiconductors Preliminary specification 40 YI4 41 YI3 42 YI2 43 YI1 1 UI1 44 YI0 2 UI0 3 VI1 4 VI0 handbook, full pagewidth 5 CL16 SAA4995WP 6 VDD4 PANorama-IC (PAN-IC) WEI 7 39 YI5 TEST 8 38 YI6 SCANIN 9 37 YI7 VDD1 10 36 VRST T0 11 35 SNCL GND1 12 34 SDNA SAA4995WP T1 13 33 VDD3 WEod 14 32 GND4 VDD2 15 31 CLK GND2 16 30 GND3 YO6 28 YO5 27 YO4 26 YO3 25 YO2 24 YO1 23 YO0 22 UO1 21 UO0 20 VO1 19 29 YO7 VO0 18 WEO 17 MGK175 Fig.2 Pin configuration. In the centre of the line a high quality compression (e.g. with a factor 4⁄3) has to be made. Towards the sides of the line, more and more expansion and compression respectively is made. The sample rate conversion factor over a line will have a bathtub shape, with parameters illustrated in Fig.3: FUNCTIONAL DESCRIPTION The PAN-IC is an add-on IC to be used, for example, between analog-to-digital conversion and a serial (field) memory. The device performs the following tasks: • Linear horizontal sample rate conversion in both zoom and compress direction, with a sample rate conversion factor between 0.5 and 2 • Dynamic sample rate conversion for panorama mode display of e.g. 4 : 3 material on a 16 : 9 display • X0l and X0r, where in-between a constant data rate is maintained (area I) and starting points from where a curve can be programmed for its 2nd derivative (in areas II and V) • Dynamic sample rate conversion for amaronap mode display of e.g. 16 : 9 material on a 4 : 3 display. • X1l and X1r, points from where a new curve can be programmed for its 2nd derivative (for areas III and IV) The PAN-IC has the ability to increase the data rate from the ADC (maximum 16 MHz in a 16/32 MHz concept) to a maximum of twice the data rate. For this, a 32 MHz clock rate is needed to write to the memory. All actions to generate a lower data rate produces disable cycles in write enable. • X2l corresponds to the first sample in the output data stream, defined by start of WEI • X2r corresponds to the last sample in the output data stream, defined by the programmed number of samples • C1, which controls the second derivatives of the data rate in areas II and V In panorama and amaronap modes, the sample rate conversion factor is modulated along the video line. 1997 Jun 10 • C2, which controls the second derivatives of the data rate in areas III and IV. 5 Philips Semiconductors Preliminary specification PANorama-IC (PAN-IC) SAA4995WP There is an offset in the programmed number of samples compared to the effective number of samples per line. Interpolation function The interpolation for phase positions between the original samples, is achieved with a variable phase delay filter with 10 taps for luminance signals and 4 taps for chrominance signals. For luminance the PAN-IC supplies samples up to 32 MHz. For chrominance the PAN-IC supplies each U and V samples with a data rate of 8 MHz (max). • Effective number of Y samples = 4 × (programmed number of samples + 1) • Effective number of UV samples = 1 × (programmed number of samples + 1) SECAM Y notch Processing control in the PAN-IC A notch filter at the Y input of the PAN-IC can be switched on. The purpose of this filter is to prevent artefacts from scan velocity modulation with SECAM inputs. The notch filter is an FIR filter with coefficients (−1 0 3 0 3 0 −1). When fs = 16 MHz, the notch frequency is 4 MHz; the maximum gain of the filter is +3 dB at 2 and 6 MHz. The compress factor (see Fig.4) at any position in the lines is a function of the dynamically changing DTO-increment. When DTOincr = 255, the sample rate is divided by 2; when DTOincr = 0, the sample rate in the PAN-IC remains unchanged; when DTOincr = −128, the sample rate is doubled. Timing Control of number of samples per line Three possibilities exist for the relationship between the end of WEI and the required number of samples per line for storage in the field memory: The inputs are related to CL16 (half system clock). This clock is used for reference in the PAN-IC from the CL16 pin. The system clock must have a fixed phase relationship to the CL16 enable signal (one clock system). • WEI negative edge coincides with the required last sample in the line; standard operation. Relationship of WE to video data • WEI negative edge is reached before the present last sample in the line was required; extra dummy WE cycles will be generated at the maximum rate (zoom factor 2) to arrive at the required number of samples per line. WE inputs and outputs may be used with either coincident or advanced WE to video timing (see Fig.5). The advanced WE to video timing is applicable to field memories, such as the SAA4955TJ. The input and output WEs of the PAN-IC can be programmed separately to either timing by the in-phase and out-phase bits. • The required number of samples per line is reached before WEI negative edge; the DTO calculations will continue until the required number of samples is reached, but without generation of WE cycles. Odd/even sample distribution The PAN-IC usually delivers a complete YUV data stream to one receiving device, e.g. a field memory. Optionally, a data stream can be split into odd and even samples, to be received by two receiving devices. The programmed number of samples per line is thus always realized, independent of all other controls (unless the line period becomes insufficient to store up to the last sample in a line). When using odd/even sample distribution, the programmed number of samples refers to the number of samples in each data stream. Consequently, the total number of samples is twice as many. 1997 Jun 10 The relationship between Y and UV samples is then non-trivial (see Tables 1 to 4). 6 Philips Semiconductors Preliminary specification PANorama-IC (PAN-IC) SAA4995WP NO SPLITTING INTO ODD AND EVEN SAMPLE STREAM Table 1 Normal output YUV data stream E O E O E O E O E O E O E Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 Y9 Y10 Y11 Y12 UV760 UV540 UV320 UV100 UV764 UV544 UV324 UV104 UV768 UV548 UV328 UV108 UV7612 SPLITTING INTO ODD AND EVEN SAMPLE STREAM Keeps corresponding parts of the UV samples in one stream (UV0, UV8, etc. in even stream and UV4, UV12, etc. in odd stream): The odd data stream misses two samples at the start of a line and has two dummy samples at the end of the line, to keep the UV format correct and maintain the same line length as for the even stream (In the odd stream, the last two Y samples and the last U and V samples of a line are not valid). Table 2 Even YUV data stream E − E − E − E − E − E − E Y0 − Y2 − Y4 − Y6 − Y8 − Y10 − Y12 UV760 − UV540 − UV320 − UV100 − UV768 − UV548 − UV3212 − Table 3 Odd YUV data stream − − − − − O − O − O − O − − − − − Y5 − Y7 − Y9 − Y11 − − − − − UV764 − UV544 − UV324 − UV10 − 4 − The even and odd data streams given in Tables 2 and 3 can be distributed to two receiving devices with input enable facilities. A separate input signal for each of the receiving devices must then be applied while the even YUV data stream and odd YUV data stream are again combined. COMBINED ODD/EVEN OUTPUT YUV DATA STREAM Table 4 Distribution with odd/even input enable signals E Y0 0 UV76 1997 Jun 10 − E − Y2 − UV54 0 − E − Y4 − UV32 0 − E O E O E O Y5 Y6 Y7 Y8 Y9 Y10 Y11 UV764 UV100 UV544 UV758 UV324 UV548 7 UV10 E Y12 4 UV328 Philips Semiconductors Preliminary specification PANorama-IC (PAN-IC) SAA4995WP active period handbook, full pagewidth area: V IV sample rate II I III C2 C2 C1 C1 C0 positions: X2I X1I X0r X0I X1r X2r MGK177 Fig.3 Panorama mode. MGK178 handbook, full pagewidth 2 compress factor 1 0.5 −256 −128 0 DTOincr Fig.4 Compress factor. 1997 Jun 10 8 256 Philips Semiconductors Preliminary specification PANorama-IC (PAN-IC) SAA4995WP handbook, full pagewidth CL16 WEI with in-phase = 0 WEI with in-phase = 1 YUVI CLK WEO/WEod with out-phase = 0 WEO/WEod with out-phase = 1 YUVO MGK179 Fig.5 WE timing. LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT VDD supply voltage −0.5 +6.5 V Vi, Vo input and output voltages −0.5 VDD + 0.5 V Io/out output current per output pin − 20 mA P/out power dissipation per output pin − 100 mW Tstg storage temperature −55 +140 °C Tamb operating ambient temperature −40 +85 °C VESD electrostatic handling for all pins note 1 − ±2000 V note 2 − ±300 V Notes 1. Human body model: C = 100 pF, R = 1.5 kΩ, V = 2 kV. 2. Machine model: C = 200 pF, R = 0 Ω, V = 300 V. THERMAL CHARACTERISTICS SYMBOL Rth j-a 1997 Jun 10 PARAMETER thermal resistance from junction to ambient in free air 9 VALUE UNIT 50 K/W Philips Semiconductors Preliminary specification PANorama-IC (PAN-IC) SAA4995WP CHARACTERISTICS VDD = 5.0 V; Tamb = 25 °C; unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT VDD supply voltage 4.5 5 5.5 V IDD supply current − 110 − mA fCLK operating frequency (CLK) − − 33 MHz 1⁄ − MHz fCL16 operating frequency (CL16) − 2fCLK VIL LOW level input voltage − − 0.8 V VIH HIGH level input voltage 2.0 − VDD V Ci input capacitance − 10 15 pF VOL LOW level output voltage Io = 4 mA − − 0.4 V VOH HIGH level output voltage Io = −4 mA 2.6 3.4 − V tsu(i)(D) input set-up time with respect to CL16 rising edge except pins SNDA, SNCL, VRST and CLK; see Fig.6 8 − − ns th(i)(CL16) input hold time with respect to CL16 rising edge except pins SNDA, SNCL, VRST and CLK; see Fig.6 0 − − ns tsu(i)(CL16) input set-up time with respect to CLK rising edge see Fig.6 7 − − ns th(i)(CL16) input hold time with respect to CLK rising edge see Fig.6 3 − − ns th(o) output hold time with respect to CLK CL = 7 pF 5 − − ns td output delay time with respect to CLK CL = 15 pF − − 19 ns Tamb operating ambient temperature 0 − 70 °C Tj junction temperature − − 125 °C handbook, CLKfull pagewidth th(i)(CL16) th(i)(CL16) tsu(i)(CL16) tsu(i)(CL16) CL16 data input tsu(i)(D) th(i)(D) data output data valid data valid MGK180 th(o) td Fig.6 Clock timing. 1997 Jun 10 10 Philips Semiconductors Preliminary specification PANorama-IC (PAN-IC) SAA4995WP MICROCONTROLLER BUS TIMING (SNERT BUS) SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT Tcy(SNCL) SNCL cycle time see Fig.7 1 − µs tsu(i) input data set-up time see Fig.7 90 − ns th(i) input data hold time see Fig.7 50 − ns th(o)(D) output data hold time see Fig.7 0 − ns td output data delay time see Fig.7 − 700 ns Tcy(SNCL) handbook, full pagewidth SNCL tsu(i) SNDA (receiver mode) th(i) LSB td SNDA (transmitter mode) data valid data valid data valid data valid data valid MGK181 th(o)(D) Fig.7 SNERT bus interface timing. MICROCONTROLLER BUS CONTROL (SNERT BUS) The following control table applies (Table 5), for control via the microcontroller bus (SNERT bus, consisting of SNCL, SNDA and VRST signals). Data communication is by writing to the PAN-IC (address 40H to 48H) and reading from it (address 49H) Table 5 SNERT-bus control ADDRESS (HEX) FUNCTION # OF BITS BIT POSITION 40 X1l 8 7:0 definition of X1l with a resolution of 4 samples; see Fig.3 and note 1 41 X0l 8 7:0 definition of X0l with a resolution of 4 samples; see Fig.3 and note 1 42 X0r 8 7:0 definition of X0r with a resolution of 4 samples; see Fig.3 and note 1 43 X1r 8 7:0 definition of X1r with a resolution of 4 samples; see Fig.3 and note 1 44 output samples per line 8 7:0 resolution of 4 luminance samples; actual # samples = (programmed # samples + 1) × 4; note 2 1997 Jun 10 REMARKS 11 Philips Semiconductors Preliminary specification PANorama-IC (PAN-IC) SAA4995WP ADDRESS (HEX) FUNCTION # OF BITS BIT POSITION 45 C0 8 7:0 constant DTOincr value for area I, MSB extended by zoom bit at address 48 (twos complement value); see Figs 3 and 4 46 C1 6 5:0 2nd derivatives for DTOincr for areas II and V (twos complement value); see Figs 3 and 4 distribution 1 6 C2 6 5:0 47 48 49 REMARKS enables odd/even sample distribution; see Tables 1 to 4 2nd derivatives for DTOincr for areas III and IV (twos complement value) test 1 1 6 test bit, must be logic 0 in normal operation notch 1 7 SECAM Y notch on/off (logic 1 = on, logic 0 = off) zoom bit 1 0 logic 1 = zoom, logic 0 = compress in area I in-phase 1 1 logic 1 = shifted relation WE_IN to input data; see Fig.5 out-phase 1 2 logic 1 = shifted relation WEO/WEod to output data; see Fig.5 init 1 3 circuitry is initialized at VRST pulse vrst_xfer 1 4 new settings are activated at VRST pulse keep 1 5 compression curve is kept from last active line in field test 2 1 6 test bit, must be logic 0 in normal operation adapt bit, must be logic 0 in normal operation adapt 1 7 identify read 8 read bits 7:0 PAN-IC identifies by pulling all bits LOW (hardware cluck) Notes 1. For a symmetrical bathtub curve Xnl + Xnr = output samples per line + 1. 2. WEI falling edge delay to the WEO latest sample should not be equal to the pipeline delay. This can be controlled with the WEI length via the microcontroller. TEST The test mode can be chosen via pins TEST, T0 and T1. Table 6 Test modes PIN NAME MODE TEST T1 T0 Functional test 0 X(1) X(1) Test mode on 1 X(1) X(1) Note 1. X = don’t care. 1997 Jun 10 12 Philips Semiconductors Preliminary specification PANorama-IC (PAN-IC) SAA4995WP PACKAGE OUTLINE PLCC44: plastic leaded chip carrier; 44 leads SOT187-2 eD eE y X 39 A 29 28 40 ZE bp b1 w M 44 1 E HE pin 1 index A A4 A1 e (A 3) 6 β 18 k 1 Lp k 7 detail X 17 e v M A ZD D B HD v M B 0 5 10 mm scale DIMENSIONS (millimetre dimensions are derived from the original inch dimensions) UNIT A A1 min. A3 A4 max. bp b1 mm 4.57 4.19 0.51 0.25 3.05 0.53 0.33 0.81 0.66 0.180 inches 0.020 0.01 0.165 D (1) E (1) e eD eE HD HE k 16.66 16.66 16.00 16.00 17.65 17.65 1.22 1.27 16.51 16.51 14.99 14.99 17.40 17.40 1.07 k1 max. Lp v w y 0.51 1.44 1.02 0.18 0.18 0.10 Z D(1) Z E (1) max. max. 2.16 β 2.16 45 o 0.630 0.630 0.695 0.695 0.048 0.057 0.021 0.032 0.656 0.656 0.020 0.05 0.007 0.007 0.004 0.085 0.085 0.12 0.590 0.590 0.685 0.685 0.042 0.040 0.013 0.026 0.650 0.650 Note 1. Plastic or metal protrusions of 0.01 inches maximum per side are not included. REFERENCES OUTLINE VERSION IEC JEDEC SOT187-2 112E10 MO-047AC 1997 Jun 10 EIAJ EUROPEAN PROJECTION ISSUE DATE 92-11-17 95-02-25 13 Philips Semiconductors Preliminary specification PANorama-IC (PAN-IC) SAA4995WP SOLDERING Wave soldering Introduction Wave soldering techniques can be used for all PLCC packages if the following conditions are observed: 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. • A double-wave (a turbulent wave with high upward pressure followed by a smooth laminar wave) soldering technique should be used. • The longitudinal axis of the package footprint must be parallel to the solder flow. • The package footprint must incorporate solder thieves at the downstream corners. 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). During placement and before soldering, the package must be fixed with a droplet of adhesive. The adhesive can be applied by screen printing, pin transfer or syringe dispensing. The package can be soldered after the adhesive is cured. Reflow soldering Reflow soldering techniques are suitable for all PLCC packages. Maximum permissible solder temperature is 260 °C, and maximum duration of package immersion in solder is 10 seconds, if cooled to less than 150 °C within 6 seconds. Typical dwell time is 4 seconds at 250 °C. The choice of heating method may be influenced by larger PLCC packages (44 leads, or more). If infrared or vapour phase heating is used and the large packages are not absolutely dry (less than 0.1% moisture content by weight), vaporization of the small amount of moisture in them can cause cracking of the plastic body. For more information, refer to the Drypack chapter in our “Quality Reference Handbook” (order code 9398 510 63011). A mildly-activated flux will eliminate the need for removal of corrosive residues in most applications. Repairing soldered joints Fix the component by first soldering two diagonallyopposite end leads. Use only a low voltage soldering iron (less than 24 V) applied to the flat part of the lead. Contact time must be limited to 10 seconds at up to 300 °C. When using a dedicated tool, all other leads can be soldered in one operation within 2 to 5 seconds between 270 and 320 °C. Reflow soldering requires solder paste (a suspension of fine solder particles, flux and binding agent) to be applied to the printed-circuit board by screen printing, stencilling or pressure-syringe dispensing before package placement. Several techniques exist for reflowing; for example, thermal conduction by heated belt. Dwell times vary between 50 and 300 seconds depending on heating method. Typical reflow temperatures range from 215 to 250 °C. Preheating is necessary to dry the paste and evaporate the binding agent. Preheating duration: 45 minutes at 45 °C. 1997 Jun 10 14 Philips Semiconductors Preliminary specification PANorama-IC (PAN-IC) SAA4995WP 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 this 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. 1997 Jun 10 15 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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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 547047/20/01/pp16 Date of release: 1997 Jun 10 Document order number: 9397 750 01609