SA608 Philips, SA608 Datasheet
SA608
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SA608 Summary of contents
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... NE605. The audio output is buffered. The RSSI output has an internal amplifier with the feedback pin accessible. The SA608 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 ...
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... BLOCK DIAGRAM 20 19 MIXER 1 2 ABSOLUTE MAXIMUM RATINGS SYMBOL PARAMETER V Single supply voltage CC T Storage temperature range STG T Operating ambient temperature range SA608 A Thermal impedance D package DK package JA N package DC ELECTRICAL CHARACTERISTICS V = +3V unless otherwise stated SYMBOL PARAMETER V Power supply voltage range ...
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... System SINAD sensitivity NOTE: 1. The generator source impedance but the SA608 input impedance at Pin 18 is 1500 . As a result, IF level refers to the actual signal that enters the SA608 input (Pin 18) which is about 21dB less than the “available power” at the generator. ...
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... Philips Semiconductors RF Communications Products Low voltage high performance mixer FM IF system CIRCUIT DESCRIPTION The SA608 signal processing system suitable for second IF systems with input fre- quency as high as 150MHz. The bandwidth of the IF amplifier and limiter is at least 2MHz with 90dB of gain. The gain/bandwidth dis- tribution is optimized for 455kHz, 1 ...
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... L2 0.8 H nominal X1 44.545MHz Crystal ICM4712701 R9 2k +1% 1/4W Metal Film R10 10k +1% R11 10k +1% R14 5k +1% R17 2.4k +5% 1/4W Carbon Composition R18 3.3k +5% 1/4W Carbon Composition R19 16k +5% 1/4W Carbon Composition 6 Product specification SA608 36dB, – 156k/50 PAD 51.7 1.3k C15 C16 SW5 C17 LIMITER QUAD + – R19 ...
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... Monolithic Ceramic C18 100nF +10% Monolithic Ceramic C19 390pF +10% Monolithic Ceramic C21 100nF +10% Monolithic Ceramic C23 100nF +10% Monolithic Ceramic *NOTE: This value can be reduced when a battery is the power source. Figure 2. SA608 45MHz Test Circuit (Relays as shown) November 3, 1992 C26 R18 3.3k R17 2.4k FLT1 SW8 ...
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... R5 can be used to bias the oscillator transistor at a higher current for operation above 45MHz. Recommended value is 22k , but should not be below 10k . November 3, 1992 SA608 DEMO-BOARD RSSI (+3) DE-EMPHASIS DC VOLTMETER C–MESSAGE HP339A DISTORTION SCOPE ANALYZER Figure 3. SA608 Application Circuit Test Set Up 8 Product specification SA608 AUDIO FILTER ...
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... Figure 5. Third Order Intercept Point vs Supply Voltage November 3, 1992 = Figure Temperature CC 2. –20 – Temperature ( C) 9 Product specification SA608 C 85 105 125 ...
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... Low voltage high performance mixer FM IF system 8.00 7.75 7.50 7.25 7.00 6.75 6.50 6.25 6.00 5.75 5.50 5.25 5.00 –40 –30 18.00 17.75 17.50 17.25 17.00 16.75 16.50 16.25 16.00 –40 –30 –20 November 3, 1992 7.0V 3V 2.7V –20 – TEMPERATURE ( C) Figure 6. Mixer Noise Figure vs Supply Voltage 2.7V 3V 7.0V – TEMPERATURE ( C) Figure 7. Conversion Gain vs Supply Voltage 10 Product specification SA608 ...
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... FUND PRODUCT –40 –50 –60 –70 –80 *50 INPUT –66 –56 Figure 8. Mixer Third Order Intercept and Compression November 3, 1992 3rd ORDER PRODUCT –46 –36 –26 –16 –6 4 RF* INPUT LEVEL (dBm) 11 Product specification SA608 RF = 45MHz IF = 455kHz ...
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... Figure 9. Sensitivity vs RF Level (–40 C) AUDIO 45MHz DEVIATION = 8kHz AUDIO LEVEL = 58.5mV AM REJECTION NOISE –95 –85 –75 –65 –55 RF LEVEL (dBm) Figure 10. Sensitivity vs RF Level (+ Product specification SA608 RMS THD + NOISE –45 –35 –25 RMS THD + NOISE –45 –35 –25 ...
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... AUDIO LEVEL = 63.5mV AM REJECTION NOISE –95 –85 –75 –65 –55 RF LEVEL (dBm) AUDIO 45MHz RF LEVEL = –45dBm DEVIATION = 8kHz AUDIO LEVEL = +58.6mV DISTORTION AM REJECTION NOISE TEMPERATURE ( C) 13 Product specification SA608 RMS THD + NOISE –45 –35 –25 RMS 85 105 125 ...
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... Figure 14. RSSI vs RF Level and Temperature - V November 3, 1992 –65 –55 –45 –35 IF LEVEL (dBm) Figure 13. RSSI (455kHz IF @ 3V) –95 –85 –75 –65 RF LEVEL (dBm) 14 Product specification SA608 +85 C ROOM –40 C –25 –15 –5 5 +85 C +27 C –40 C –55 –45 –35 – ...
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... Philips Semiconductors RF Communications Products Low voltage high performance mixer FM IF system V 300 250 200 150 100 –55 –35 –15 November 3, 1992 Figure 15. Audio Output vs Temperature 15 Product specification SA608 C 85 105 125 ...