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| INTEGRATED CIRCUITS DATA SHEET TDA1599 IF amplifier/demodulator for FM radio receivers Product specification File under Integrated Circuits, IC01 May 1994 Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers FEATURES * Balanced limiting amplifier * Balanced coincidence demodulator * Two open-collector stop pulse outputs for microcomputer tuning control * Simulated behaviour of a ratio detector (internal field strength and detuning dependent voltage for dynamic AF signal muting) * Mono/stereo blend field strength indication control voltage * AFC output * 3-state mode switch for FM-MUTE-ON, FM-MUTE-OFF and FM-OFF * Internal compensation of AF signal total harmonic distortion (THD) * Built-in hum and ripple rejection circuits. QUICK REFERENCE DATA SYMBOL VP IP Vi Vo S/N THD Tamb PARAMETER positive supply voltage (pin 1) supply current (I2 = I7 = 0) IF input sensitivity for limiting on pin 20 (RMS value) AF output signal on pin 4 (RMS value) signal-to-noise ratio (fm = 400 Hz; f = 75 kHz) total harmonic distortion (fm = 1 kHz; f = 75 kHz) with K2 adjustment and FM-MUTE-OFF operating ambient temperature - 14 180 - - - -40 MIN. 7.5 TYP. 8.5 20 22 200 82 0.1 0.07 - GENERAL DESCRIPTION TDA1599 The TDA1599 provides IF amplification, symmetrical quadrature demodulation and level detection for quality home and car FM radio receivers and is suitable for mono and stereo reception. It may also be applied to common front ends, stereo decoders and AM receiver circuits. MAX. 12 26 35 220 - 0.3 0.25 +85 UNIT V mA V mV dB % % C All pin numbers mentioned in this data sheet refer to the SO-version (TDA1599T) unless otherwise specified. ORDERING INFORMATION EXTENDED TYPE NUMBER TDA1599 TDA1599T Notes 1. SOT102-1; 1996 August 29. 2. SOT163-1; 1996 August 29. PACKAGE PINS 18 20 PIN POSITION DIL mini-pack MATERIAL plastic plastic CODE SOT102(1) SOT163A(2) May 1994 2 May 1994 Philips Semiconductors IF amplifier/demodulator for FM radio receivers 3 Product specification (1) (2) (3) (4) to connect pin 13 (11) to ground is only allowed to measure the current on pin 16 (14) FM-MUTE-OFF FM-OFF FM-MUTE-ON TDA1599 Fig.1 Block diagram and application circuit (TDA1599 pinning in parenthesis). Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers PINNING; note 1 SYMBOL VP LVA ULV VoAF VREF WLV MODE DDV n.c. DEMI1 DEMI2 n.c. TSW ST1 ST0 MUTE GND LFB1 LFB2 ViIF Note 1. SO-version TDA1599T; pinning for DIL-version in parenthesis. PIN 1 (1) 2 (2) 3 (3) 4 (4) 5 (5) 6 (6) 7 (7) 8 (8) 9 (-) 10 (9) 11 (10) 12 (-) 13 (11) 14 (12) 15 (13) 16 (14) 17 (15) 18 (16) 19 (17) 20 (18) supply voltage (+8.5 V) level adjustment for stop condition unweighted level output / K2 adjustment audio frequency output (MPX signal) reference voltage output weighted level output mode switch input detune detector voltage not connected demodulator input 1 demodulator input 2 not connected tau switch input STOP-1, stop pulse output 1 STOP-0, stop pulse output 0 muting voltage ground (0 V) IF limiter feedback 1 IF limiter feedback 2 IF signal input DESCRIPTION TDA1599 Fig.2 Pin configuration for DIL-version. Fig.3 Pin configuration for SO-version. May 1994 4 Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers FUNCTIONAL DESCRIPTION The limiter amplifier has five stages of IF amplification using balanced differential limiter amplifiers with emitter follower coupling. Decoupling of the stages from the supply voltage line and an internal high-ohmic DC feedback loop give a very stable IF performance. The amplifier gain is virtually independent of changes in temperature. The FM demodulator is fully balanced and compromises two cross-coupled differential amplifiers. The quadrature detection of the FM signal is performed by direct feeding of one differential amplifier from the limiter amplifier output, and the other via an external 90 degrees phase shifting network. The demodulator has a good stability and a small zero-cross-over shift. The bandwidth on the demodulator output is restricted by an internal low-pass filter to approximately 1 MHz. Non-linearities, which are introduced by demodulation, are compensated by the THD compensation circuit. For this reason, the demodulator resonance circuit (between pins 10 and 11) must have a loaded Q-factor of 19. TDA1599 Consequently, there is no need for the demodulator tuned circuit to be adjusted for minimum distortion. Adjustment criterion is a symmetrical stop pulse. The control voltage for the mute attenuator (pin 16) is derived from the values of the level detector and the detuning detector output signals. The mute attenuator has a fast attack and a slow decay determined by the capacitor on pin 16. The AF signal is fed via the mute attenuator to the output (pin 4). A weighted control voltage (pin 6) is obtained from the mute attenuator control voltage via a buffer amplifier that introduces an additional voltage shift and gain. The level detector generates a voltage output signal proportional to the amplitude of the input signal. The unweighted level detector output signal is available in FM-MUTE-ON condition (mode switch). The open-collector tuning stop output voltages STOP-0 and STOP-1 (pins 15 and 14) are derived from the detuning and the input signal level. The pins 14 and 15 may be tied together, if only one tuning-stop output is required. May 1994 5 Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers LIMITING VALUES (TDA1599T PINNING) In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL VP Vn1 Vn2 V13 I14, 15 Ptot Tstg Tamb VESD supply voltage (pin 1) voltage at pins 2, 4, 5, 6, 10, 11 and 16 voltage at pins 7, 3, 8, 14, 15, 18, 19 and 20 voltage on pin 13 current at pins 14 and 15 total power dissipation storage temperature operating ambient temperature electrostatic handling; note 1 all pins except 5 and 7 pin 5 pin 7 - - - PARAMETER MIN. -0.3 -0.3 -0.3 - - - -55 -40 TDA1599 MAX. +13 +10 VP 6 2 360 +150 +85 2000 +800 -2000 +1000 -2000 V V V V UNIT mA mW C C V V V V V Note to the limiting values 1. Equivalent to discharging a 100 pF capacitor through a 1.5 k series resistor. THERMAL RESISTANCE SYMBOL Rth j-a SOT102 SOT163A PARAMETER from junction to ambient in free air 80 K/W 90 K/W THERMAL RESISTANCE May 1994 6 Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1599 CHARACTERISTICS (TDA1599T PINNING) VP = 8.5 V; Tamb = +25 C; FM-MUTE-ON (I7 = 0); fIF = 10.7 MHz; deviation 22.5 kHz with fm = 400 Hz; Vi = 10 mV RMS at pin 20; de-emphasis of 50 s; tuned circuit at pins 10 and 11 aligned for symmetrical stop pulses; measurements taken in Fig.4 unless otherwise specified. SYMBOL VP IP I7 V7 PARAMETER positive supply voltage (pin 1) supply current I2 = I7 = 0 CONDITIONS - - 2.4 0.9VREF AF attenuation > 60 dB - MIN. 7.5 TYP. 8.5 20 MAX. 12 26 - 3.2 - 1.4 V mA UNIT Mode switch input input current for FM-MUTE-ON input voltage for FM-MUTE-ON input voltage for FM-MUTE-OFF input voltage for FM-OFF IF amplifier and demodulator Zi Ci demodulator input impedance between pins 10 and 11 demodulator input capacitance between pins 10 and 11 25 - 40 6 55 - k pF 0 2.8 - - mA V V V AF output (pin 4) Ro V4 RR1000 output resistance DC output level ViIF 5 V RMS on pin 20 power supply ripple rejection on pin 4 f = 1000 Hz; Vripple = 50 mV RMS detuning frequency for STOP-0 for V15 3.5 V for V15 0.3 V f detuning frequency for STOP-1 for V14 3.5 V for V14 0.3 V V20 dependence on input voltage for STOP-0 and STOP-1 (RMS value) Fig.9; V14, 15 3.5 V V14, 15 0.3 V V14, 15 VREF R5 TC output voltage I14, 15 = 1 mA I5 = -1 mA I5 = -1 mA Reference voltage source (pin 5) reference output voltage output resistance temperature coefficient 3.3 - - 3.7 40 3.3 4.1 80 - V mV/VK 250 - - - - - - 50 0.3 V V V on pin 14; Fig.10 - -22.0 - - -14.0 - kHz kHz on pin 15; Fig.11 - +22.0 - - +14.0 - kHz kHz - 2.75 33 400 3.1 36 - 3.45 - V dB Tuning stop detector f May 1994 7 Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers SYMBOL External muting V16 S muting voltage at I2 = 0 steepness of control voltage (slope: 100 V V20 100 mV) 20 log V20 = 20 dB (V16 / log V20) V16 VREF V16 = 0.77VREF V16 = 0.55VREF I16 current for capacitor (pin 16) charge current discharge current charge current discharge current Level detector R6 V6 output resistance output voltage at I2 = 0 V20 5 V RMS; Fig.14 V20 = 1 mV RMS 200 kHz detuning output voltage at V2 = V5 V6 TC f S output voltage at detuning temperature coefficient detuning frequency steepness of control voltage (slope: 50 V V20 50 mV) 20 log V20 = 20 dB (V6 / log V20) slope of output voltage at detuning level shift adjustments range by pin 2 gain range by pin 2 gain V6/VREF -V6/V2 V16/VREF -V16/V2 0.42 - 0.21 - 0.5 1.7 0.25 0.85 - - - - f = 125 20 kHz V6 = 1.8 V; Fig.13 V20 5 V RMS 45 kHz detuning - 0.1 3.0 1.2 - - - 90 1.4 - - - 1.5 - - 3.3 - 1.7 V13 = 0 V V13 = 0 V V13 = VREF V13 = VREF - - - - -8 +120 -100 +120 - - - - V20 5 V RMS; Fig.12 V20 = 1 mV RMS 1.45 3.0 - 1.75 3.45 0.85 PARAMETER CONDITIONS MIN. TYP. TDA1599 MAX. UNIT 2.05 3.9 - V V V/dec Internal mute = 20 log (V4(FM-MUTE-OFF)/ V4(FM-MUTE-ON)) mute voltage - 1.5 - 0 - 20 - 4.5 - dB dB dB A A A A V V V V V mV/VK kHz V/dec 500 1.1 4.2 1.8 0.3 0.2 - 160 2.0 V6/f S - 35 - mV/kHz V/V V/V V/V V/V May 1994 8 Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1599 OPERATING CHARACTERISTICS (TDA1599T PINNING) VP = 7.5 to 12 V; Tamb = +25 C; FM-MUTE-ON (I7 = 0); fIF = 10.7 MHz; deviation 22.5 kHz with fm = 400 Hz; Vi = 10 mV RMS at pin 20; de-emphasis of 50 s; tuned circuit at pins 10 and 11 aligned for symmetrical stop pulses; measurements taken in Fig.4 unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT V IF amplifier and demodulator Vi input signal for start of limiting (-3 dB) (RMS value; pin 20) input signal for signal-to-noise ratio (RMS value) S/N = 26 dB S/N = 46 dB S/N Vo THD signal-to-noise ratio AF output signal (RMS value; pin 4) total harmonic distortion without de-emphasis without detuning 25 kHz detuning compensated via pin 3 V4 AM K2 adjustment (V4 = V4(V3 = 0) - V4(V3 = VREF)) AM suppression on pin 4 Vi = 0.3 to 1000 mV RMS Vi = 1 to 300 mV RMS V7 = VREF; m = 30% on pin 20 on pin 20 deviation 75 kHz; fm = 100 kHz; V2 = 1 V Tuning stop detector f detuning frequency for STOP-0 for V15 3.5 V for V15 0.3 V f detuning frequency for STOP-1 for V14 3.5 V for V14 0.3 V V20 dependence on input voltage for STOP-0 and STOP-1 (RMS value) Fig.9; V14, 15 3.5 V V14, 15 0.3 V R8 internal low-pass resistance of detune detector 250 - 12 - - 25 - 50 50 V V k on pin 14; Fig.10 - -22.0 - - -14.0 - kHz kHz on pin 15; Fig.11 - +22.0 - - +14.0 - kHz kHz 46 60 - 55 65 - - - dB dB V7 = VREF deviation 75 kHz; fm = 1 kHz; I7 = 0 - - - 10 0.1 - 0.07 - 0.3 0.6 0.25 - % % % mV V7 = VREF; FM-MUTE-OFF f = 250 to 15000 Hz V7 = VREF V7 = VREF deviation 75 kHZ - - - 180 15 60 82 200 - - - 220 V V dB mV 14 22 35 Dynamic mute attenuation = 20 log (V4(FM-MUTE-OFF)/V4(FM-MUTE-ON)) dynamic mute attenuation 14 dB May 1994 9 Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers SYMBOL V8 PARAMETER voltage on capacitor CONDITIONS I7 = 0; Vi 5 V RMS on input pin 20 Level detector (I2 = 0) V6 output voltage V20 5 V RMS V20 = 1 mV RMS Reference voltage source (pin 5) VREF reference output voltage I5 = -1 mA 3.3 3.7 0.1 3.0 - - - MIN. TYP. 2.2 - TDA1599 MAX. UNIT V 1.1 4.2 V V 4.1 V Operation with AM-IF Level and stop information (on pins 6,13, 14, 15 and 16) is provided for the modes FM-MUTE-ON and FM-MUTE-OFF. This information is also available in the FM-OFF mode when an AM-IF signal is input (for example 455 kHz). This can also provide a valid detuning information when a suitable AM-IF resonance circuit is provided for demodulator (Fig.18). Fig.4 Test circuit (TDA1599 pinning in parenthesis). May 1994 10 Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1599 (1) audio signal (2) noise Fig.5 FM-MUTE-ON: Audio signal and noise as functions of the input signal ViIF (pin 20) with f = 22.5 kHz; fm = 1 kHz; de-emphasis 50 s. handbook, full pagewidth 20 MEH071 V4 (dB) 0 (1) -20 (2) -40 -60 -80 10-6 (1) audio signal (2) noise 10-5 10-4 10-3 10-2 10-1 Vi20 (rms) (V) 1 Fig.6 FM-MUTE-OFF: Audio signal and noise as functions of the input signal ViIF (pin 20) with f = 22.5 kHz; fm = 1 kHz; de-emphasis 50 s. May 1994 11 Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1599 (1) audio signal (2) spurious AM signal Fig.7 FM-MUTE-ON: Typical AM suppression as a function of the input signal ViIF (pin 20) with f = 22.5 kHz; fm = 1 kHz; AM with fm = 400 Hz; m = 0.3 and 250 to 15000 Hz bandwidth. handbook, full pagewidth 20 MEH073 V4 (dB) 0 (1) -20 (2) -40 -60 -80 10-6 (1) audio signal (2) spurious AM signal 10-5 10-4 10-3 10-2 10-1 Vi20 (rms) (V) 1 Fig.8 FM-MUTE-OFF: Typical AM suppression as a function of the input signal ViIF (pin 20) with f = 22.5 kHz; fm = 1 kHz; AM with fm = 400 Hz; m = 0.3 and 250 to 15000 Hz bandwidth. May 1994 12 Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1599 handbook, full pagewidth 10 MEH074 V14, 15 (12, 13) (V) 8 6 4 2 0 10-6 10-5 10-4 10-3 10-2 10-1 Vi20 (rms (V) 1 Fig.9 STOP-0 and STOP-1 output voltage dependent on input signal ViIF (pin 20). handbook, halfpage 10 MEH075 V15(13) (V) 8 6 4 2 0 -20 -10 0 10 20 30 40 detune (kHz) Fig.10 STOP-1 output voltage dependent on ViIF = 10 mV RMS (pin 20). Fig.11 STOP-0 output voltage dependent on ViIF = 10 mV RMS (pin 20). May 1994 13 Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1599 handbook, full pagewidth 10 MEH076 V16(14) (V) 8 6 (1) (2) 4 (3) 2 0 10-6 10-5 10-4 10-3 10-2 10-1 Vi20 (rms) (V) 1 Fig.12 External mute voltage V16 dependent on input signal ViIF (pin 20); typical adjusting range. handbook, full pagewidth 10 MEH079 V16(14) (V) 8 6 4 2 0 -400 -300 -200 -100 0 100 200 300 400 detune (kHz) Fig.13 Mute voltage V16 dependent on detuning; ViIF = 10 mV RMS. May 1994 14 Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1599 Fig.14 Control voltage V6 dependent on input signal ViIF (pin 20); typical adjusting range. handbook, full pagewidth 10 MED834 V6 (V) 8 6 4 2 0 -400 -300 -200 -100 0 100 200 300 400 detune (kHz) Fig.15 Control voltage V6 dependent on detuning; ViIF = 10 mV RMS. May 1994 15 Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1599 Fig.16 Level output voltage V3 dependent on input signal ViIF (pin 20); typical adjusting range. Fig.17 Total harmonic distortion dependent on detuning at FM-MUTE-ON; deviation 75 kHz; fm = 1 kHz; ViIF = 10 mV. May 1994 16 Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1599 Fig.18 Interface for AM stop pulse application (SO-version). May 1994 17 Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers TDA1599 Fig.19 Interface for AM stop pulse application (DIL-version). May 1994 18 Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers PACKAGE OUTLINES DIP18: plastic dual in-line package; 18 leads (300 mil) TDA1599 SOT102-1 D seating plane ME A2 A L A1 c Z e b1 b 18 10 b2 MH wM (e 1) pin 1 index E 1 9 0 5 scale 10 mm DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT mm inches A max. 4.7 0.19 A1 min. 0.51 0.020 A2 max. 3.7 0.15 b 1.40 1.14 0.055 0.044 b1 0.53 0.38 0.021 0.015 b2 1.40 1.14 0.055 0.044 c 0.32 0.23 0.013 0.009 D (1) 21.8 21.4 0.86 0.84 E (1) 6.48 6.20 0.26 0.24 e 2.54 0.10 e1 7.62 0.30 L 3.9 3.4 0.15 0.13 ME 8.25 7.80 0.32 0.31 MH 9.5 8.3 0.37 0.33 w 0.254 0.01 Z (1) max. 0.85 0.033 Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT102-1 REFERENCES IEC JEDEC EIAJ EUROPEAN PROJECTION ISSUE DATE 93-10-14 95-01-23 May 1994 19 Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers SO20: plastic small outline package; 20 leads; body width 7.5 mm TDA1599 SOT163-1 D E A X c y HE vMA Z 20 11 Q A2 A1 pin 1 index Lp L 1 e bp 10 wM detail X (A 3) A 0 5 scale 10 mm DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT mm inches A max. 2.65 0.10 A1 0.30 0.10 A2 2.45 2.25 A3 0.25 0.01 bp 0.49 0.36 c 0.32 0.23 D (1) 13.0 12.6 0.51 0.49 E (1) 7.6 7.4 0.30 0.29 e 1.27 0.050 HE 10.65 10.00 0.42 0.39 L 1.4 Lp 1.1 0.4 Q 1.1 1.0 0.043 0.039 v 0.25 0.01 w 0.25 0.01 y 0.1 Z (1) 0.9 0.4 0.012 0.096 0.004 0.089 0.019 0.013 0.014 0.009 0.043 0.055 0.016 0.035 0.004 0.016 8 0o o Note 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. OUTLINE VERSION SOT163-1 REFERENCES IEC 075E04 JEDEC MS-013AC EIAJ EUROPEAN PROJECTION ISSUE DATE 92-11-17 95-01-24 May 1994 20 Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers 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. 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). DIP 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. 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. 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. SO REFLOW SOLDERING Reflow soldering techniques are suitable for all SO packages. 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. TDA1599 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. WAVE SOLDERING Wave soldering techniques can be used for all SO packages if the following conditions are observed: * 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 end. 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. 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. 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. May 1994 21 Philips Semiconductors Product specification IF amplifier/demodulator for FM radio receivers DEFINITIONS Data sheet status Objective specification Preliminary specification Product specification Limiting values TDA1599 This data sheet contains target or goal specifications for product development. This data sheet contains preliminary data; supplementary data may be published later. This data sheet contains final product specifications. 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. May 1994 22 |
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