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SA626 Low voltage high performance mixer FM IF system with high-speed RSSI
Product specification IC17 Data Handbook 1997 Sept 25
Philips Semiconductors
Philips Semiconductors
Product specification
Low voltage high performance mixer FM IF system with high-speed RSSI
SA626
DESCRIPTION
The SA626 is a low-voltage high performance monolithic FM IF system incorporating a mixer/oscillator, two limiting intermediate frequency amplifiers, quadrature detector, high speed logarithmic received signal strength indicator (RSSI), voltage regulator and audio and fast RSSI op amps. The SA626 is available in 20-lead SOL (surface-mounted small outline large package) and 20-lead SSOP (shrink small outline package). The SA626 was designed for high bandwidth portable communication applications and will function down to 2.7V. The RF section is similar to the famous NE605. The audio and RSSI outputs have amplifiers. The RSSI output has access to the feedback pin. This enables the designer to level adjust the outputs or add filtering. SA626 incorporates a power down mode which powers down the device when Pin 8 is low. Power down logic levels are CMOS and TTL compatible with high input impedance.
PIN CONFIGURATION
D and DK Packages
RFIN 1 20 MIXER OUT 19 IF AMP DECOUPLING 18 IF AMP IN 17 IF AMP DECOUPLING
RF BYPASS 2 XTAL OSC EMITTER XTAL OSC (BASE) VCC 3 4 5
16 IF AMP OUT 15 GND 14 LIMITER IN 13 12 11 LIMITER DECOUPLING LIMITER DECOUPLING LIMITER OUT
RSSI FEEDBACK 6 RSSIOUT 7
POWER DOWN CONTROL 8 AUDIO OUT 9 QUADRATURE IN 10
SR00470
APPLICATIONS
* Digital cordless telephones * Digital cellular telephones * Digital cellular base stations * Portable high performance communications receivers * Single conversion VHF/UHF receivers * SCA receivers * RF level meter * Spectrum analyzer * Instrumentation * FSK and ASK data receivers * Log amps * Wideband low current amplification
FEATURES
* Mixer input to >500MHz * Mixer conversion power gain of 11dB at 240MHz * Mixer noise figure of 14dB at 240MHz * XTAL oscillator effective to 150MHz (L.C. oscillator to 1GHz, local
oscillator can be injected)
Figure 1. Pin Configuration
* 92dB of IF Amp/Limiter power gain * 25MHz limiter small signal bandwidth * Temperature compensated logarithmic Received Signal Strength
Indicator (RSSI) with a dynamic range in excess of 90dB
* Audio output internal buffer * RSSI output internal buffer * Internal op amps with rail-to-rail outputs * 10.7MHz filter matching (330) reduces external component
count; suitable for crystal/ceramic/LC filters
* Fast RSSI rise and fall times * Low power consumption: 6.5mA typ at 3V * Power down mode (ICC = 200A)
* Excellent sensitivity:
0.54V into 50 matching network for 12dB SINAD (Signal to Noise and Distortion ratio) for 1kHz tone with RF at 240MHz and IF at 10.7MHz
* SA626 meets cellular radio specifications * ESD hardened
ORDERING INFORMATION
DESCRIPTION 20-Pin Plastic Small Outline Large (SOL) package (Surface-mount) 20-Pin Plastic Shrink Small Outline Package (Surface-mount) TEMPERATURE RANGE -40 to +85C -40 to +85C ORDER CODE SA626D SA626DK DWG # SOT163-1 SOT266-1
1997 Sept 25
2
853-1723 18427
Philips Semiconductors
Product specification
Low voltage high performance mixer FM IF system with high-speed RSSI
SA626
BLOCK DIAGRAM
20 19 18 17 16 15 14 13 12 11
IF AMP MIXER
GND LIMITER
OSCILLATOR
FAST RSSI
QUAD
VCC E B RSSI
-+
PWR DWN
-+
AUDIO
1
2
3
4
5
6
7
8
9
10
SR00471
Figure 2. Block Diagram
ABSOLUTE MAXIMUM RATINGS
SYMBOL VCC VIN TSTG TA JA Single supply voltage Voltage applied to any other pin Storage temperature range Operating ambient temperature range SA626 Thermal impedance D package DK package PARAMETER RATING 0.3 to 7 -0.3 to (VCC+0.3) -65 to +150 -40 to +85 90 117 UNITS V V
C C C/W C/W
DC ELECTRICAL CHARACTERISTICS
VCC = +3V, TA = 25C; unless otherwise stated. LIMITS SYMBOL PARAMETER TEST CONDITIONS MIN VCC ICC ICC Power supply voltage range DC current drain Standby Input current Pin 8 = HIGH Pin 8 = LOW Pin 8 LOW Pin 8 HIGH Input level Pin 8 LOW Pin 8 HIGH tON tOFF Power up time Power down time RSSI valid (10% to 90%) RSSI invalid (90% to 10%) -10 -10 0 0.7VCC 10 5 2.7 5.5 SA626 TYP 3.0 6.5 0.2 MAX 5.5 7.5 0.5 10 10 0.3VCC VCC V mA mA A A V V s s UNITS
1997 Sept 25
3
Philips Semiconductors
Product specification
Low voltage high performance mixer FM IF system with high-speed RSSI
SA626
AC ELECTRICAL CHARACTERISTICS
TA = 25C; VCC = +3V, unless otherwise stated. RF frequency = 240.05MHz + 14.5dBV RF input step-up; IF frequency = 10.7MHz; RF level = -68dBm; FM modulation = 1kHz with 125kHz peak deviation. Audio output with C-message weighted filter and de-emphasis filter. Test circuit Figure 1. The parameters listed below are tested using automatic test equipment to assure consistent electrical characteristics. 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 MIN Mixer/Osc section (ext LO = 160mVRMS) fIN fOSC Input signal frequency External oscillator (buffer) Noise figure at 240MHz Third-order input intercept point Conversion power gain RF input resistance RF input capacitance Mixer output resistance IF section IF amp power gain Limiter amp power gain Input limiting -3dB AM rejection Audio level Audio DC level SINAD sensitivity THD S/N Total harmonic distortion Signal-to-noise ratio IF RSSI output with buffer No modulation for noise IF level = -118dBm IF level = -68dBm IF level = -10dBm IF RSSI output rise time (10kHz pulse, no 10.7MHz filter) (no RSSI bypass capacitor) IF RSSI output fall time (10kHz pulse, no 10.7MHz filter) (no RSSI bypass capacitor) RSSI range RSSI accuracy IF input impedance IF output impedance Limiter input impedance Limiter output impedance Limiter output level with no load RF/IF section (int LO) Audio level System RSSI output System SINAD RF level = -10dBm RF level = -10dBm RF level = -106dBm 160 1.4 12 mVRMS V dB IF frequency = 10.7MHz RF level = -56dBm RF level = -28dBm IF frequency = 10.7MHz RF level = -56dBm RF level = -28dBm 2.0 7.3 90 +1.5 330 330 330 300 130 s s dB dB mVRMS 1.2 1.1 s s 0.3 0.9 Test at Pin 18 80% AM 1kHz Unity gain Pin 9, no signal IF level = -111dBm 120 38 54 -105 50 160 1.0 16 -43 60 0.2 0.6 1.3 0.5 1.0 1.8 -38 200 dB dB dBm dB mVRMS V dB dB dB V V V (Pin 20) Matched f1=240.05; f2=240.35MHz Matched 14.5dBV step-up Single-ended input 8 500 500 14 -16 11 700 3.5 330 14 MHz MHz dB dBm dB pF SA626 TYP MAX UNITS
1997 Sept 25
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Philips Semiconductors
Product specification
Low voltage high performance mixer FM IF system with high-speed RSSI
SA626
9.0 8.5 8.0 7.5 7.0 6.5 VCC = 2.7V 6.0 5.5 5.0 -50 -40 -30 -20 -10 0 10 20 30 40 TEMPERATURE (C) VCC = 3V VCC = 5V
0.50 0.45 POWER DOWN SUPPLY CURRENT (mA) 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0.00 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 TEMPERATURE (C) VCC = 2.7V VCC = 3V
SUPPLY CURRENT (mA)
VCC = 5V
50
60
70 80 90
Supply Current vs Temp and Supply Voltage
20 19 18 17 MIXER GAIN (dB) 16 15 14 13 12 11 10 9 8 7 6 5 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 VCC = 2.7V VCC = 3V VCC = 5V
Power Down Supply Current vs Temp and Supply Voltage
-6 THIRD ORDER INPUT INTERCEPT POINT dBm) -8 -10 -12 -14 -16 -18 -20 -22 -24 -26 -28 -30 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 VCC = 3V VCC = 5V
VCC = 2.7V
TEMPERATURE (C)
TEMPERATURE (C)
Mixer Power Gain vs Temperature and Supply Voltage
300 275
Third Order Input Intercept Point vs Temp and Supply Voltage
20 AUDIO 0
250 225 200 AUDIO (mV) 175 150 125 100 75 50 25 0 -50 -40 -30 -20 -10 -120 0 10 20 30 40 TEMPERATURE (C) 50 60 70 80 90 -50 -40 -30 -20 -10 0 10 20 30 40 50 TEMPERATURE (C) 60 70 80 90 -100 12dB SINAD VCC = 3V VCC = 2.7V -80 NOISE VCC = 5V AUDIO (dB) -40 DISTORTION -60 -20 AM REJECTION
Audio Output Level vs. Temp and Supply Voltage
12dB SINAD and Relative Audio, THD, Noise and AM Rejection for VCC = 3V vs Temperature RF = 240MHz, SR00472 Level = -68dBm, Deviation = 125kHz
Figure 3. Performance Characteristics
1997 Sept 25
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Philips Semiconductors
Product specification
Low voltage high performance mixer FM IF system with high-speed RSSI
SA626
10 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -110 -90 -80 -70 -60 -50 -40 -30 -20 -100 -10 0 RF INPUT LEVEL (dBm) NOISE THD+N AM REJECTION RSSI AUDIO
2 1.8 RELATIVE TO AUDIO OUTPUT (dB) 1.6 1.4 1.3 RSSI (V) 1.0 0.8 0.6 0.4 0.2 0
10 0 -10 -20 AM REJECTION -30 -40 -50 -60 -70 RSSI -80 -90 -110 -90 -80 -70 -60 -50 -40 -30 -20 -100 RF INPUT LEVEL (dBm) -10 0 -15 THD+N NOISE AUDIO
2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 RSSI (V)
RELATIVE TO AUDIO OUTPUT (dB)
Receiver RF Performance -- T = 25C, Audio Level = 129mVRMS
10 AUDIO 0 RELATIVE TO AUDIO OUTPUT (dB) -10 -20 AM REJECTION -30 -40 -50 -60 -70 -80 -90 -110 -90 -80 -70 -60 -50 -40 -30 -20 -100 -10 0 THD+N NOISE RSSI 1.8 1.6 IF OUTPUT POWER (dBm) 1.4 1.2 1 0.8 0.6 0.4 -100 0.2 0 -65 -60 -110 RSSI (V) -10 -20 -30 -40 -50 -60 -70 -80 -90 2 0
Receiver RF Performance -- T = -40C, Audio Level = 118mVRMS
-55
-50
-45
-40
-35
-30
-25
-20
RF INPUT POWER (dBm)
Receiver RF Performance - T = 85C, Audio Level = 131mVRMS
Mixer Third Order Intercept and Compression
SR00473
Figure 4. Performance Characteristics
1997 Sept 25
6
-10
Philips Semiconductors
Product specification
Low voltage high performance mixer FM IF system with high-speed RSSI
SA626
50.00 48.00 46.00 POWER GAIN (dB) 44.00 42.00 40.00 38.00 36.00 34.00 32.00 30.00 10.00 30.00 50.00 70.00 -50.00 -30.00 -10.00 90.00 VCC = 2.7V VCC = 5V VCC = 3V POWER GAIN (dB)
65.00 63.00 61.00 59.00 57.00 55.00 53.00 51.00 49.00 47.00 45.00 10.00 30.00 50.00 70.00 -50.00 -30.00 -10.00 90.00 VCC = 2.7V VCC = 3V VCC = 5V
TEMPERATURE (C)
TEMPERATURE (C)
SA626 IF Amplifier Gain vs Temperature vs Supply Voltage
SA626 Limiting Amplifier Gain vs Temperature vs Supply Voltage
SR00474
Figure 5. Performance Characteristics
CIRCUIT DESCRIPTION
The SA626 is an IF signal processing system suitable for second IF or single conversion systems with input frequency as high as 1GHz. The bandwidth of the IF amplifier is about 40MHz, with 38dB of power gain from a 50 source. The bandwidth of the limiter is about 28MHz with about 54dB of power gain from a 50 source. However, the gain/bandwidth distribution is optimized for 10.7MHz, 330 source applications. The overall system is well-suited to battery operation as well as high performance and high quality products of all types, such as cordless and cellular hand-held phones. The input stage is a Gilbert cell mixer with oscillator. Typical mixer characteristics include a noise figure of 14dB, conversion power gain of 11dB, and input third-order intercept of -16dBm. The oscillator will operate in excess of 1GHz 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. The output of the mixer is internally loaded with a 330 resistor permitting direct connection to a 10.7MHz ceramic filter. The input resistance of the limiting IF amplifiers is also 330. With most 10.7MHz ceramic filters and many crystal filters, no impedance matching network is necessary. To achieve optimum linearity of the log signal strength indicator, there must be a 3dB insertion loss
between the first and second IF stages. If the IF filter or interstage network does not cause 3dB insertion loss, a fixed or variable resistor can be added between the first IF output (Pin 16) and the interstage network. 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. Overall, the IF section has a power gain of 92dB. For operation at intermediate frequency at 10.7MHz. Special care must be given to layout, termination, and interstage loss to avoid instability. The demodulated output of the quadrature drives an internal op amp. This op amp is configured as a unity gain buffer. It can drive an AC load as low as 5k with a rail-to-rail output. A log signal strength indicator 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, and RCR-28 cordless telephone. This signal drives an internal op amp. The op amp is capable of rail-to-rail output. It can be used for gain, filtering, or 2nd-order temperature compensation of the RSSI, if needed.
1997 Sept 25
7
Philips Semiconductors
Product specification
Low voltage high performance mixer FM IF system with high-speed RSSI
SA626
PIN FUNCTIONS
PIN PIN DC V No. MNEMONIC EQUIVALENT CIRCUIT PIN PIN DC V No. MNEMONIC EQUIVALENT CIRCUIT
VCC
RSSI 1 RF IN +1.07 6 FEEDBACK +0.20
6
--
+
0.8k 1
0.8k 2 VCC
RF 2 BYPASS +1.07 7
RSSI OUT +0.20
+ -- 7
R
XTAL 3 OSC +1.57
4
18k
POWER 8 DOWN +2.75
8
R MIX
VCC 3
XTAL 4 OSC +2.32
150A
AUDIO 9 OUT +1.09
+ -- 9
80k 5 VREF
QUAD. 10
BANDGAP
10
5
VCC
+3.00
IN
+3.00
20A
SR00475
Figure 6. Pin Functions 1997 Sept 25 8
Philips Semiconductors
Product specification
Low voltage high performance mixer FM IF system with high-speed RSSI
SA626
PIN FUNCTIONS (continued)
PIN PIN DC V No. MNEMONIC EQUIVALENT CIRCUIT PIN PIN DC V No. MNEMONIC EQUIVALENT CIRCUIT
LIMITER 11 OUT +1.35
11 8.8k
IF 16 AMP OUT +1.22
140 16 8.8k
LIMITER 12 DECOUP +1.23 17
IF AMP DECOUP +1.22
14
18 330
LIMITER 13 COUPLING +1.23
IF 18
50A
AMP IN
+1.22
330
50A
12 13 19
17
LIMITER 14 IN +1.23 19
IF AMP DECOUP +1.22
MIXER 15 GND 0 20 OUT +1.03
110 20
400A
SR00476
Figure 7. Pin Functions (cont.)
1997 Sept 25
9
Philips Semiconductors
Product specification
Low voltage high performance mixer FM IF system with high-speed RSSI
SA626
MIXER IF/LIM OUT
IF/LIM IN
R9 R4 C12 C11 L5 2 1 FLT1 1 2 C14 2 C15 1 R2 R3 C16 R5 FLT2 1 2 C18 SW5 C19 R6 R11 R7 R8 C17 C20 R10
C13
20
19
18
17
16
15
14
13
12
11
IF AMP MIXER
LIMITER
QUAD RSSI OSCILLATOR
C21
VCC
-+
PWR DWN
-+ AUDIO
1
C1
2
C3
3
4
C4
5
6
7
8
9
10
C6 *L1 C2 L3 C5 FLT 3
C8 R1 C9 L4
*L2
C7
FLT 4 PWR DWN CTRL AUDIO OUT C10
VCC RF IN LO IN
RSSI OUT
Automatic Test Circuit Component List R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 8.2k select 6.42k 347.8 49.9 1k 49.9 6.42k 347.8 49.9 1k 49.9 C1 C2 C3 C4 C5 C6 *C7 C8 C9 C10 C11 0.1F 1-5pF select for input match 0.1F 0.1F 1-5pF select for input match 100pF 6.8F 10V 1F 39pF select 0.1F 0.1F C12 160pF select C13 1000pF C14 0.1F C15 1000pF C16 0.1F C17 0.1F C18 1000pF C19 1000pF C20 0.1F C21 1pF L1 L2 L3 L4 L5 FLT1 FLT2 FLT3 FLT4 150nH select for input match 22nH select for input match 47nH select for input match 5.6H select for input match 1.27-2.25H select for mixer output match 10.7MHz (Murata SFE10.7MA5-A) 10.7MHz (Murata SFE10.7MA5-A) "C" message weighted Active de-emphasis
SR00477
*NOTE: This value can be reduced when a battery is the power source.
Figure 8. SA626 240.5MHz (RF) / 10.7MHz (IF) Test Circuit
1997 Sept 25
10
Philips Semiconductors
Product specification
Low voltage high performance mixer FM IF system with high-speed RSSI
SA626
SMA RF IN
C1 5-30pF 240MHz 1 I
10.7MHz FLT1 O G L1 33nH C17 0.1F U1 2 3
C2 22pF
1
C3 0.1F
RF IN
MIXER OUT
20
C16 0.1F
2
RF BYPASS
IF AMP DECOUPLING
19
3
SMA RF IN 229.3MHz C5 5-30pF C4 1.0nF
XTAL OSC (EMITTER)
IF IN
18
4
L2 47nH
XTAL OSC (BASE)
IF AMP DECOUPLING
17
1
10.7MHz FLT1 I G 2 O 3
C6 39pF
5
VCC
IF OUT
16
6
RSSI FEEDBACK
GROUND
15
7
RSSI OUT
LIMITER IN
14
8
PD CTRL
LIMITER DEC
13
9
VCC C8 6.8F + C7 0.1F
AUDIO OUT
LIMITER DEC
12
10
QUAD SA626/636
LIMITER OUT
11
C14 0.1F
C15 0.1F
RSSI
C13 4.7pF
PWR DWN CTRL R4 12k AUDIO C12 0.1F C11 39pF
L3 5.6H
C10
R3
NOTE: For SA626 C10 and R3 are not required.
SR00478
Figure 9. SA626 240MHz (RF) / 10.7MHz (IF) Application Circuit
1997 Sept 25
11
Philips Semiconductors
Product specification
Low voltage high performance mixer FM IF system with high-speed RSSI
SA626
RF GENERATOR 240MHz
SA626 DEMO BOARD RSSI AUDIO VCC = 3V
LO / GENERATOR 229.3MHz C-MESSAGE DC VOLTMETER DE-EMPHASIS FILTER
SCOPE
HP8903A DISTORTION ANALYZER
SR00479
Figure 10. SA626 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 HP8903A analyzer. The de-emphasis filter has a fixed -6dB/Octave slope between 300Hz and 3kHz. 2. Ceramic filters: The ceramic filter can be SFE10.7MA5-A made by Murata which has 280kHz IF bandwidth. 3. RF generator: Set your RF generator at 240.000MHz, use a 1kHz modulation frequency and a 125kHz deviation. 4. Sensitivity: The measured typical sensitivity for 12dB SINAD should be 0.54V or -112dBm 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 0.1F bypass capacitor on the supply pin improves sensitivity.
1997 Sept 25
12
Philips Semiconductors
Product specification
Low voltage high performance mixer FM IF system with high-speed RSSI
SA626
C3
C3
C2
C2
C1 C6 C16 L1 C17 L2 C4 L1
C1 C16 C17 FLT2
C6
L2 C4
LO C5 +C8 C7
LO FLT2 C5 +C8 C7
C9
C14
C9 R2
R1
C15
R2 R1
V C13 TP1 C11 R4
V FLT1 R C11 PD A L3 FLT1 C14 C13 TP1 L3 C12 R3 C10 R4 TOP SILK SCREEN (SOL) TOP VIEW (SOL) BOTTOM VIEW (SOL) C15
R PD A
C10
TOP SILK SCREEN (SSOP)
BOTTOM VIEW (SSOP)
C12
R3
TOP VIEW (SSOP)
#30017
RF IN
RF IN
SR00480
Figure 11. SA626 Demoboard Layout (Not Actual Size) 1997 Sept 25 13
Philips Semiconductors RF Communications Products
Product specification
Low voltage high performance mixer FM IF system with high-speed RSSI
SA626
SO20: plastic small outline package; 20 leads; body width 7.5 mm
SOT163-1
1997 Sept 25
14
Philips Semiconductors RF Communications Products
Product specification
Low voltage high performance mixer FM IF system with high-speed RSSI
SA626
SSOP20: plastic shrink small outline package; 20 leads; body width 4.4 mm
SOT266-1
1997 Sept 25
15
Philips Semiconductors RF Communications Products
Product specification
Low voltage high performance mixer FM IF system with high-speed RSSI
SA626
DEFINITIONS
Data Sheet Identification
Objective Specification
Product Status
Formative or in Design
Definition
This data sheet contains the design target or goal specifications for product development. Specifications may change in any manner without notice. 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. 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.
Preliminary Specification
Preproduction Product
Product Specification
Full Production
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. Philips Semiconductors 811 East Arques Avenue P.O. Box 3409 Sunnyvale, California 94088-3409 Telephone 800-234-7381 Philips Semiconductors and Philips Electronics North America Corporation register eligible circuits under the Semiconductor Chip Protection Act. (c) Copyright Philips Electronics North America Corporation 1993 All rights reserved. Printed in U.S.A. 98-2006-260 1997 Sept 25 16

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