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INTEGRATED CIRCUITS
SA615
High performance low power mixer FM IF
system
Product specification 1997 Nov 07
Replaces data of 1992 Nov 03
IC17 Data Handbook
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Philips Semiconductors Product specification High performance low power mixer FM IF system SA615 DESCRIPTION PIN CONFIGURATION The SA615 is a high performance monolithic low-power FM IF system incorporating a mixer/oscillator, two limiting intermediate N, D and DK Packages frequency amplifiers, quadrature detector, muting, logarithmic received signal strength indicator (RSSI), and voltage regulator. The RF 1 IN 20 MIXER OUT SA615 combines the functions of Signetics’ SA602 and SA604A, but feature
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Philips Semiconductors Product specification High performance low power mixer FM IF system SA615 BLOCK DIAGRAM 20 19 18 17 16 15 14 13 12 11 IF LIMITER AMP RSSI OSCILLATOR EB 1 2 3 4 5 6 7 8 9 10 SR00342 Figure 2. Block Diagram ABSOLUTE MAXIMUM RATINGS SYMBOL PARAMETER RATING UNITS V Single supply voltage 9 V CC T Storage temperature range –65 to +150 °C STG T Operating ambient temperature range SA615 –40 to +85 °C A Thermal impedance D package 90 θ N package 75 °C/W JA SSOP package 117 DC EL
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Philips Semiconductors Product specification High performance low power mixer FM IF system SA615 AC ELECTRICAL CHARACTERISTICS T = 25°C; V = +6V, unless otherwise stated. RF frequency = 45MHz + 14.5dBV RF input step–up; IF frequency = 455kHz; R17 = 5.1k; RF A CC level = –45dBm; FM modulation = 1kHz with +8kHz peak deviation. Audio output with C-message weighted filter and de-emphasis capacitor. Test circuit Figure 3. The parameters listed below are tested using automatic test equipment to a
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Philips Semiconductors Product specification High performance low power mixer FM IF system SA615 network does not cause 12dB(v) insertion loss, a fixed or variable CIRCUIT DESCRIPTION resistor can be added between the first IF output (Pin 16) and the The SA615 is an IF signal processing system suitable for second IF interstage network. or single conversion systems with input frequency as high as 1GHz. The bandwidth of the IF amplifier is about 40MHz, with 39.7dB(v) of The signal from the second
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Philips Semiconductors Product specification High performance low power mixer FM IF system SA615 –25dB, –10dB, –29dB, –10.6dB, –36dB, 1500/50Ω PAD 50/50Ω PAD 929/50Ω PAD 50/50Ω PAD 156k/50Ω PAD 51.5 96.5 51.7 96.5 50.5 71.5 2430 32.8 71.5 1.3k 3880 32.6 C20 R17 C15 C24 C22 C19 C16 5.1k SW9 FLT1 SW8 SW7 SW6 SW5 FLT2 C18 C21 C17 C23 20 19 18 17 16 15 14 13 12 11 IF AMP 700 LIMITER MIXER QUAD DETECTOR OSCILLATOR RSSI MUTE SWITCH EMITTER BASE 1 2 3 4 5 6 7 8 9 10 C9 R9 R10 R11 SW1 SW3 SW4 C1 C8 L1
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Philips Semiconductors Product specification High performance low power mixer FM IF system SA615 R17 C15 5.1k FLT1 FLT2 C18 C21 C17 C23 20 19 18 17 16 15 14 13 12 11 IF AMP 700 LIMITER MIXER QUAD DETECTOR OSCILLATOR RSSI MUTE SWITCH 1 2 3 4 5 6 7 8 9 10 C9 R9 R10 R11 C1 C8 L1 C2 C7 R5 C10 C11 C12 C13 C5 IFT1 L2 45MHz X1 C26 C6 INPUT C25 C14 MUTE RSSI AUDIO UNMUTED V CC AUDIO OUTPUT NE/SA615N Application Component List C1 47pF NPO Ceramic C21 100nF +10% Monolithic Ceramic C2 180pF NPO Ceramic C23
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Philips Semiconductors Product specification High performance low power mixer FM IF system SA615 RF GENERATOR SA615 DEM0–BOARD 45MHz RSSI AUDIO DATA V (+6) CC C–MESSAGE DC VOLTMETER HP339A DISTORTION SCOPE ANALYZER SR00345 Figure 5. SA615 Application Circuit Test Set Up NOTES: 1. C-message: The C-message filter has a peak gain of 100 for accurate measurements. Without the gain, the measurements may be affected by the noise of the scope and HP339 analyzer. 2. Ceramic filters: The ceramic filt
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Philips Semiconductors Product specification High performance low power mixer FM IF system SA615 20 RF = 45MHz IF = 455kHz V = 6V CC AUDIO REF = 174mV RMS RSSI 0 5 (Volts) –20 4 THD NOISE –40 3 AM (80%) –60 2 –80 1 NOISE RSSI (Volts) –100 0 –130 –110 –90 –70 –50 –30 –10 10 RF INPUT LEVEL (dBm) SR00346 Figure 6. SA615 Application Board at 25°C 1997 Nov 07 9 RELATIVE TO AUDIO OUTPUT (dB)
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Philips Semiconductors Product specification High performance low power mixer FM IF system SA615 DIP20: plastic dual in-line package; 20 leads (300 mil) SOT146-1 1997 Nov 07 10
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Philips Semiconductors Product specification High performance low power mixer FM IF system SA615 SO14: plastic small outline package; 14 leads; body width 3.9 mm SOT108-1 1997 Nov 07 11
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Philips Semiconductors Product specification High performance low power mixer FM IF system SA615 SSOP20: plastic shrink small outline package; 20 leads; body width 4.4 mm SOT266-1 1997 Nov 07 12
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Philips Semiconductors Product specification High performance low power mixer FM IF system SA615 NOTES 1997 Nov 07 13
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Philips Semiconductors Product specification High performance low power mixer FM IF system SA615 Data sheet status [1] Data sheet Product Definition status status Objective Development This data sheet contains the design target or goal specifications for product development. specification Specification may change in any manner without notice. Preliminary Qualification This data sheet contains preliminary data, and supplementary data will be published at a later date. specification Philips Semic
