RF COMMUNICATIONS PRODUCTS 20 19 18 17 16 15 14 13 IF AMP 12 11 9 10 LIMITER RSSI MIXER QUAD OSCILLATOR – – + + VREG E 1 2 3 AUDIO B 4 5 6 7 8 SA607 Low-voltage high performance mixer FM IF system Product specification Replaces data of November 3, 1992 IC17 Data Handbook Philips Semiconductors 1997 Nov 07 Philips Semiconductors Product specification Low voltage high performance mixer FM IF system DESCRIPTION SA607 PIN CONFIGURATION The SA607 is a low voltage high performance monolithic FM IF system incorporating a mixer/oscillator, two limiting intermediate frequency amplifiers, quadrature detector, logarithmic received signal strength indicator (RSSI), voltage regulator and audio and RSSI op amps. The SA607 is available in 20-lead SOL (surface-mounted miniature package) and 20-lead SSOP package. D and DK Packages The SA607 was designed for portable communication applications and will function down to 2.7V. The RF section is similar to the famous SA605. The audio output has an internal amplifier with the feedback pin accessible. The RSSI output is buffered. The SA607 also has an extra limiter output. This signal is buffered from the output of the limiter and can be used to perform frequency check. This is accomplished by comparing a reference frequency with the frequency check signal using a comparator to a varactor or PLL at the oscillator inputs. RF IN+ 1 20 MIXER OUT RF IN– DECOUPLING 2 19 IF AMP DECOUPLING OSCOUT 3 18 IF AMP IN OSCIN 4 17 IF AMP DECOUPLING RSSI 5 16 IF AMP OUT VCC 6 15 GND AUDIO FEEDBACK 7 14 LIMITER IN AUDIO 8 13 LIMITER DECOUPLING FREQ CHECK/LIM OUT (–) 9 12 LIMITER DECOUPLING 11 QUADRATURE IN 10 LIM OUT(+) SR00387 FEATURES • Low power consumption: 3.5mA typical at 3V • Mixer input to >150MHz • Mixer conversion power gain of 17dB at 45MHz • XTAL oscillator effective to 150MHz (L.C. oscillator or external Figure 1. Pin Configuration • Buffered frequency check output • Internal op amps with rail-to-rail outputs • ESD protection: Human Body Model 2kV Robot Model 200V oscillator can be used at higher frequencies) • 102dB of IF Amp/Limiter gain • 2MHz limiter small signal bandwidth • Temperature compensated logarithmic Received Signal Strength APPLICATIONS • Portable cellular radio FM IF • Cordless phones • Narrow band cellular applications (NAMPS/NTACS) • RF level meter • Spectrum analyzer • Instrumentation • FSK and ASK data receivers • Log amps • Portable high performance communication receivers • Single conversion VHF receivers • Wireless systems Indicator (RSSI) with a 90dB dynamic range • Low external component count; suitable for crystal/ceramic/LC filters • Excellent sensitivity: 0.31µV into 50Ω matching network for 12dB SINAD (Signal to Noise and Distortion ratio) for 1kHz tone, 8kHz deviation with RF at 45MHz and IF at 455kHz • SA607 meets cellular radio specifications • Audio output internal op amp • RSSI output internal op amp ORDERING INFORMATION DESCRIPTION TEMPERATURE RANGE ORDER CODE DWG # 20-Pin Plastic Small Outline Large (SOL) package (Surface-mount) -40 to +85°C SA607D SOT163-1 20-Pin Plastic Shirnk Small Outline Package (SSOP) (Surface-mount) -40 to +85°C SA607DK SOT266-1 1997 Nov 07 2 853-1677 18665 Philips Semiconductors Product specification Low voltage high performance mixer FM IF system SA607 BLOCK DIAGRAM 20 19 18 17 16 15 14 IF AMP 13 12 11 9 10 LIMITER RSSI MIXER QUAD OSCILLATOR – – + + VREG 1 2 E B 3 4 AUDIO 5 6 7 8 SR00388 Figure 2. Block Diagram ABSOLUTE MAXIMUM RATINGS SYMBOL PARAMETER VCC Single supply voltage TSTG RATING UNITS 7 V Storage temperature range –65 to +150 °C TA Operating ambient temperature range SA607 –40 to +85 °C θJA Thermal impedance 90 117 °C/W D package DK package DC ELECTRICAL CHARACTERISTICS VCC = +3V, TA = 25°C; unless otherwise stated. LIMITS SYMBOL PARAMETER TEST CONDITIONS SA607 MIN VCC Power supply voltage range ICC DC current drain 1997 Nov 07 TYP 2.7 3.5 3 UNITS MAX 7.0 V 4.2 mA Philips Semiconductors Product specification Low voltage high performance mixer FM IF system SA607 AC ELECTRICAL CHARACTERISTICS TA = 25°C; VCC = +3V, unless otherwise stated. RF frequency = 45MHz + 14.5dBV RF input step-up; IF frequency = 455kHz; R17 = 2.4k; R18 = 3.3k; RF level = –45dBm; FM modulation = 1kHz with ±8kHz peak deviation. Audio output with de-emphasis filter and C-message weighted filter. Test circuit 3. The parameters listed below are tested using automatic test equipment to assure consistent electrical characterristics. The limits do not represent the ultimate performance limits of the device. Use of an optimized RF layout will improve many of the listed parameters. LIMITS SYMBOL PARAMETER TEST CONDITIONS SA607 MIN TYP UNITS MAX Mixer/Osc section (ext LO = 220mVRMS) fIN fOSC Input signal frequency 150 MHz Crystal oscillator frequency 150 MHz Noise figure at 45MHz 6.2 dB –9 dBm Third–order input intercept point (50Ω source) f1 = 45.0; f2 = 45.06MHz Input RF Level = –52dBm Conversion power gain Matched 14.5dBV step–up 13.5 50Ω source RF input resistance Single–ended input RF input capacitance 17 (Pin 20) 1.25 IF amp gain 50Ω source Limiter gain 50Ω source Input limiting –3dB, R17 = 2.4k Test at Pin 18 AM rejection 80% AM 1kHz Audio level Gain of two (2kΩ AC load) SINAD sensitivity RF level –110dB dB dB 8 kΩ 3.0 Mixer output resistance 19.5 +2.5 4.0 pF 1.5 kΩ 44 dB IF section 58 dB –109 dBm 45 dB 70 120 160 mV 17 dB –35 –50 dB THD Total harmonic distortion S/N Signal–to–noise ratio No modulation for noise 62 IF RSSI output, R9 = 2kΩ1 IF level = –118dBm 0.3 0.8 V V IF level = –68dBm .70 1.1 1.80 IF level = –23dBm 1.2 1.8 2.5 RSSI range 90 RSSI accuracy IF input impedance 1.3 IF output impedance Limiter input impedance Limiter output impedance Limiter output level dB 1.30 (Pin 11) (Pin 11) No load 5kΩ load V dB +1.5 dB 1.5 kΩ 0.3 kΩ 1.5 kΩ 200 Ω 130 115 mVRMS 200 Ω No load 5kΩ load 130 115 mVRMS Audio level 3V = VCC, RF level = –27dBm 120 mVRMS System RSSI output 3V = VCC, RF level = –27dBm 2.2 V System SINAD sensitivity RF level = –117dBm 12 dB Frequency check/limiter output impedance Frequency check/limiter output level (Pin 9) (Pin 9) RF/IF section (int LO) NOTE: 1. The generator source impedance is 50Ω, but the SA607 input impedance at Pin 18 is 1500Ω. As a result, IF level refers to the actual signal that enters the SA607 input (Pin 18) which is about 21dB less than the “available power” at the generator. 1997 Nov 07 4 Philips Semiconductors Product specification Low voltage high performance mixer FM IF system The signal from the second limiting amplifier goes to a Gilbert cell quadrature detector. One port of the Gilbert cell is internally driven by the IF. The other output of the IF is AC-coupled to a tuned quadrature network. This signal, which now has a 90° phase relationship to the internal signal, drives the other port of the multiplier cell. CIRCUIT DESCRIPTION The SA607 is an IF signal processing system suitable for second IF systems with input frequency as high as 150MHz. The bandwidth of the IF amplifier and limiter is at least 2MHz with 90dB of gain. The gain/bandwidth distribution is optimized for 455kHz, 1.5kΩ source applications. The overall system is well-suited to battery operation as well as high performance and high quality products of all types. The demodulated output of the quadrature drives an internal op amp. This op amp can be configured as a unity gain buffer, or for simultaneous gain, filtering, and 2nd-order temperature compensation if needed. It can drive an AC load as low as 5kΩ with a rail-to-rail output. The input stage is a Gilbert cell mixer with oscillator. Typical mixer characteristics include a noise figure of 6.2dB, conversion gain of 17dB, and input third-order intercept of –9dBm. The oscillator will operate in excess of 200MHz in L/C tank configurations. Hartley or Colpitts circuits can be used up to 100MHz for xtal configurations. Butler oscillators are recommended for xtal configurations up to 150MHz. A log signal strength completes the circuitry. The output range is greater than 90dB and is temperature compensated. This log signal strength indicator exceeds the criteria for AMPs or TACs cellular telephone. This signal is buffered through an internal unity gain op amp. The frequency check pin provides a buffered limiter output. This is useful for implementing an AFC (Automatic Frequency Check) function. This same output can also be used in conjunction with limiter output (Pin 11) for demodulating FSK (Frequency Shift Keying) data. Both pins are of the same amplitude, but 180° out of phase. The output impedance of the mixer is a 1.5kΩ resistor permitting direct connection to a 455kHz ceramic filter. The input resistance of the limiting IF amplifiers is also 1.5kΩ. With most 455kHz ceramic filters and many crystal filters, no impedance matching network is necessary. The IF amplifier has 43dB of gain and 5.5MHz bandwidth. The IF limiter has 60dB of gain and 4.5MHz bandwidth. To achieve optimum linearity of the log signal strength indicator, there must be a 12dB(v) insertion loss between the first and second IF stages. If the IF filter or interstage network does not cause 12dB(v) insertion loss, a fixed or variable resistor or an L pad for simultaneous loss and impedance matching can be added between the first IF output (Pin 16) and the interstage network. The overall gain will then be 90dB with 2MHz bandwidth. 1997 Nov 07 SA607 NOTE: Limiter output or Frequency Check output has drive capability of a load minimum of 2kΩ or higher to obtain 115mV output level. NOTE: dB(v) = 20log VOUT/VIN 5 Philips Semiconductors Product specification Low voltage high performance mixer FM IF system –25dB, –10dB, 1500/50Ω PAD 50/50Ω PAD –29dB, 929/50Ω PAD 51.5 96.5 50.5 2430 3880 71.5 32.6 C20 C24 SW9 FLT1 SW8 19 C26 96.5 R18 3.3k 32.8 18 SW7 FLT2 17 16 –36dB, 156k/50Ω PAD 51.7 71.5 1.3k C19 C21 C23 20 –10.6dB, 50/50Ω PAD R17 2.4k C22 SA607 15 C16 SW6 C15 SW5 C18 14 C17 13 IF AMP 12 11 LIMITER MIXER RSSI QUAD OSCILLATOR – + – + VREG AUDIO 1 2 3 4 5 6 7 8 9 10 C26 SW1 C1 SW3 R11 R9 SW4 C27 C7 R4 51.1 SW2 R1 C3 R3 R2 R14 SW10 C12 L1 C2 R10 C9 C8 C5 C10 L2 R12 DEEMPHASIS FILTER IFT1 R19 16k X1 C6 C4 EXT. LOC OSC 44.545 R7 30.5 45MHZ 45.06 MHZ R6 178 ”C” WEIGHTED AUDIO MEASUREMENT CIRCUIT R8 39.2 VCC AUDIO C14 FREQ CHECK MINI–CIRCUIT ZSC2–1B Automatic Test Circuit Component List C1 C2 C5 C6 C7 C8 C9 C10 C12 C14 C15 C17 C18 C21 C23 C25 C26 C27 Flt 1 Flt 2 IFT 1 L1 L2 100pF NPO Ceramic 390pF NPO Ceramic 100nF +10% Monolithic Ceramic 22pF NPO Ceramic 1nF Ceramic 10.0pF NPO Ceramic 100nF +10% Monolithic Ceramic 10µF Tantalum (minimum) * 2.2µF 100nF +10% Monolithic Ceramic 10pF NPO Ceramic 100nF +10% Monolithic Ceramic 100nF +10% Monolithic Ceramic 100nF +10% Monolithic Ceramic 100nF +10% Monolithic Ceramic 100nF +10% Monolithic Ceramic X1 R9 R10 R11 R12 R14 R17 R18 R19 0.1µF +10% Monolithic Ceramic 2.2µF Ceramic Filter Murata SFG455A3 or equiv Ceramic Filter Murata SFG455A3 or equiv 455kHz (Ce = 180pF) Toko RMC–2A6597H 147–160nH Coilcraft UNI–10/142–04J08S 0.8µH nominal Toko 292CNS–T1038Z 44.545MHz Crystal ICM4712701 2kΩ +1% 1/4W Metal Film 8.2kΩ +1% 10kΩ +1% 2kΩ +1% 5kΩ +1% 2.4kΩ +5% 1/4W Carbon Composition 3.3kΩ +5% 1/4W Carbon Composition 16kΩ +5% 1/4W Carbon Composition *NOTE: This value can be reduced when a battery is the power source. SR00389 Figure 3. SA607 45MHz Test Circuit (Relays as shown) 1997 Nov 07 6 Philips Semiconductors Product specification Low voltage high performance mixer FM IF system SA607 C26 R18 3.3k R17 2.4k C15 FLT1 20 19 FLT2 C21 C23 18 17 15 16 C18 14 C17 13 IF AMP 12 11 LIMITER MIXER RSSI QUAD OSCILLATOR – + – + VREG AUDIO 1 2 3 5 4 6 7 9 8 10 R11 C9 C1 C8 C2 C12 R10 L1 C7 C27 C10 C5 IFT1 L2 45MHz INPUT R19 11k C19 390pF X1 C6 C14 RSSI OUTPUT VCC AUDIO FREQ CHECK SA607D/DK Application Component List C1 C2 C5 C6 C7 C8 C9 C10 C12 C14 C15 C17 C18 C19 C21 51pF NPO Ceramic 220pF NPO Ceramic 100nF +10% Monolithic Ceramic 5-30pF trim cap 1nF Ceramic 10.0pF NPO Ceramic 100nF +10% Monolithic Ceramic 10µF Tantalum (minimum) * 2.2µF +10% Tantalum 100nF +10% Monolithic Ceramic 10pF NPO Ceramic 100nF +10% Monolithic Ceramic 100nF +10% Monolithic Ceramic 390pF +10% Monolithic Ceramic 100nF +10% Monolithic Ceramic C23 C26 C27 Flt 1 Flt 2 IFT 1 L1 L2 X1 R5 R10 R11 R17 R18 R19 100nF +10% Monolithic Ceramic 100nF +10% Monolithic Ceramic 2.2µF Tantalum Ceramic Filter Murata SFG455A3 or equiv Ceramic Filter Murata SFG455A3 or equiv 330µH TOKO 303LN-1130 .33µH TOKO SCB-1320Z 1.2µH Coilcraft 1008C S-122 44.545MHz Crystal Hy–Q Not Used in Application Board (see Note 8, pg 8) 8.2k +5% 1/4W Carbon Composition 10k +5% 1/4W Carbon Composition 2.4k +5% 1/4W Carbon Composition 3.3k +5% 1/4W Carbon Composition 11k +5% 1/4W Carbon Composition *NOTE: This value can be reduced when a battery is the power source. SR00390 Figure 4. SA607 45MHz Application Circuit 1997 Nov 07 7 Philips Semiconductors Product specification Low voltage high performance mixer FM IF system RF GENERATOR 45MHz SA607 SA607 DEMO-BOARD RSSI AUDIO VCC (+3) DE-EMPHASIS FILTER DC VOLTMETER C–MESSAGE SCOPE HP339A DISTORTION ANALYZER SR00391 Figure 5. SA607 Application Circuit Test Set Up NOTES: 1. C-message: The C-message and de-emphasis filter combination has a peak gain of 10 for accurate measurements. Without the gain, the measurements may be affected by the noise of the scope and HP339 analyzer. The de-emphasis filter has a fixed -6dB/Octave slope between 300Hz and 3kHz. 2. Ceramic filters: The ceramic filters can be 30kHz SFG455A3s made by Murata which have 30kHz IF bandwidth (they come in blue), or 16kHz CFU455Ds, also made by Murata (they come in black). All of our specifications and testing are done with the more wideband filter. 3. RF generator: Set your RF generator at 45.000MHz, use a 1kHz modulation frequency and a 6kHz deviation if you use 16kHz filters, or 8kHz if you use 30kHz filters. 4. Sensitivity: The measured typical sensitivity for 12dB SINAD should be 0.35µV or –116dBm at the RF input. 5. Layout: The layout is very critical in the performance of the receiver. We highly recommend our demo board layout. 6. RSSI: The smallest RSSI voltage (i.e., when no RF input is present and the input is terminated) is a measure of the quality of the layout and design. If the lowest RSSI voltage is 500mV or higher, it means the receiver is in regenerative mode. In that case, the receiver sensitivity will be worse than expected. 7. Supply bypass and shielding: All of the inductors, the quad tank, and their shield must be grounded. A 10-15µF or higher value tantalum capacitor on the supply line is essential. A low frequency ESR screening test on this capacitor will ensure consistent good sensitivity in production. A 0.1µF bypass capacitor on the supply pin, and grounded near the 44.545MHz oscillator improves sensitivity by 2-3dB. 8. R5 can be used to bias the oscillator transistor at a higher current for operation above 45MHz. Recommended value is 22kΩ, but should not be below 10kΩ. 1997 Nov 07 8 Philips Semiconductors Product specification Low voltage high performance mixer FM IF system SA607 mA 6 VCC = 7V 5 VCC = 5V 4 VCC = 3V 3 VCC = 2.7V °C 2 –55 –35 –15 5 25 45 65 85 105 125 SR00392 Figure 6. ICC vs Temperature –8.0 –8.5 50 Ω INPUT INTERCEPT POINT (dBm) –9.0 2.7V 3V –9.5 –10.0 7V –10.5 –11.0 –11.5 –12.0 –12.5 –13.0 –13.5 –14.0 –40 –30 –20 –10 0 10 20 30 40 50 60 70 80 Temperature (°C) SR00393 Figure 7. Third Order Intercept Point vs Supply Voltage 1997 Nov 07 9 Philips Semiconductors Product specification Low voltage high performance mixer FM IF system SA607 8.00 7.75 7.50 7.25 7.00 NOISE FIGURE 6.75 7.0V 6.50 6.25 3V 6.00 2.7V 5.75 5.50 5.25 5.00 –40 –30 –20 –10 0 10 20 30 40 50 60 70 80 TEMPERATURE (°C) SR00394 Figure 8. Mixer Noise Figure vs Supply Voltage 18.00 17.75 2.7V CONVERSION GAIN (dB) 17.50 3V 17.25 7.0V 17.00 16.75 16.50 16.25 16.00 –40 –30 –20 –10 0 10 20 30 40 50 60 70 80 TEMPERATURE (°C) SR00395 Figure 9. Conversion Gain vs Supply Voltage 1997 Nov 07 10 Philips Semiconductors Product specification Low voltage high performance mixer FM IF system SA607 20 10 0 RF = 45MHz IF = 455kHz IF OUTPUT POWER (–dBm) –10 –20 –30 –40 3rd ORDER PRODUCT FUND PRODUCT –50 –60 –70 *50Ω INPUT –80 –66 –56 –46 –36 –26 –16 –6 4 14 RF* INPUT LEVEL (dBm) Figure 10. Mixer Third Order Intercept and Compression 1997 Nov 07 11 24 34 SR00396 Philips Semiconductors Product specification Low voltage high performance mixer FM IF system SA607 5 AUDIO 0 –5 DECIBELS (dB) –10 –15 VCC = 3V RF = 45MHz –20 DEVIATION = ±8kHz AUDIO LEVEL = 104.9mVRMS –25 –30 AM REJECTION –35 –40 THD + NOISE –45 –50 –55 –60 NOISE –65 –125 –115 –105 –95 –85 –75 –65 –55 –45 –35 –25 RF LEVEL (dBm) SR00397 Figure 11. Sensitivity vs RF Level (–40°C) 5 AUDIO 0 –5 –10 DECIBELS (dB) VCC = 3V RF = 45MHz –20 DEVIATION = ±8kHz –25 AUDIO LEVEL = 117.6mVRMS –30 AM REJECTION –35 –40 –45 –50 THD + NOISE –55 –60 –65 –125 NOISE –115 –105 –95 –85 –75 –65 –55 RF LEVEL (dBm) Figure 12. Sensitivity vs RF Level (+25°C) 1997 Nov 07 12 –45 –35 –25 SR00398 Philips Semiconductors Product specification Low voltage high performance mixer FM IF system SA607 5 AUDIO 0 –5 DECIBELS (dB) –10 –15 VCC = 3V RF = 45MHz –20 DEVIATION = ±8kHz AUDIO LEVEL = 127mVRMS –25 –30 AM REJECTION –35 –40 –45 THD + NOISE –50 –55 –60 –65 –125 NOISE –115 –105 –95 –85 –75 –65 –55 –45 –35 –25 RF LEVEL (dBm) SR00399 Figure 13. Sensitivity vs RF Level (Temperature 85°C) 5 AUDIO 0 –5 –10 VCC = 3V RF = 45MHz RF LEVEL = –45dBm –15 DECIBELS (dB) –20 DEVIATION = ±8kHz AUDIO LEVEL = +117.6mVRMS –25 –30 –35 –40 DISTORTION –45 –50 AM REJECTION –55 –60 NOISE –65 –55 –35 –15 5 25 45 TEMPERATURE (°C) 65 85 105 Figure 14. Relative Audio Level, Distortion, AM Rejection and Noise vs Temperature 1997 Nov 07 13 125 SR00400 Philips Semiconductors Product specification Low voltage high performance mixer FM IF system SA607 2.400 2.000 +85°C VOLTAGE (V) 1.600 ROOM 1.200 –40°C 0.800 0.400 0.000 –95 –85 –75 –65 –55 –45 –35 –25 –15 –5 5 IF LEVEL (dBm) SR00401 Figure 15. RSSI (455kHz IF @ 3V) 2.1 2.0 1.9 1.8 1.7 1.6 VOLTAGE (V) 1.5 1.4 +85°C 1.3 +27°C 1.2 –40°C 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 –125 –115 –105 –95 –85 –75 –65 –55 RF LEVEL (dBm) Figure 16. RSSI vs RF Level and Temperature - VCC = 3V 1997 Nov 07 14 –45 –35 –25 SR00402 Philips Semiconductors Product specification Low voltage high performance mixer FM IF system SA607 V 300 VCC = 7V 250 mV RMS 200 VCC = 5V 150 VCC = 3V 100 VCC = 2.7V 50 °C 0 –55 –35 –15 5 25 45 65 Figure 17. Audio Output vs Temperature 1997 Nov 07 15 85 105 125 SR00403 Philips Semiconductors Product specification Low voltage high performance mixer FM IF system SA607 607 Silk Screen 607 TOP 607 BOTTOM NOTE; All views are TOP VIEW and not actual size. For reference only. SR00404 Figure 18. 1997 Nov 07 16 Philips Semiconductors Product specification Low voltage high performance FM IF system SO20: plastic small outline package; 20 leads; body width 7.5 mm 1997 Nov 07 17 SA607 SOT163-1 Philips Semiconductors Product specification Low voltage high performance FM IF system SSOP20: plastic shrink small outline package; 20 leads; body width 4.4 mm 1997 Nov 07 18 SA607 SOT266-1 Philips Semiconductors Product specification Low voltage high performance FM IF system SA607 DEFINITIONS Data Sheet Identification Product Status Definition Objective Specification Formative or in Design This data sheet contains the design target or goal specifications for product development. Specifications may change in any manner without notice. Preliminary Specification Preproduction Product This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips Semiconductors reserves the right to make changes at any time without notice in order to improve design and supply the best possible product. Product Specification Full 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. Philips Semiconductors and Philips Electronics North America Corporation reserve 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. Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. LIFE SUPPORT APPLICATIONS Philips Semiconductors and Philips Electronics North America Corporation Products are not designed for use in life support appliances, devices, or systems where malfunction of a Philips Semiconductors and Philips Electronics North America Corporation Product can reasonably be expected to result in a personal injury. Philips Semiconductors and Philips Electronics North America Corporation customers using or selling Philips Semiconductors and Philips Electronics North America Corporation Products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors and Philips Electronics North America Corporation for any damages resulting from such improper use or sale. Copyright Philips Electronics North America Corporation 1997 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 1997 Nov 07 19