RF COMMUNICATIONS PRODUCTS SA605 High performance low power mixer FM IF system Product specification Replaces data of November 3, 1992 RF Communications Handbook Philips Semiconductors 1997 Nov 07
Philips Semiconductors Product specification High performance low power mixer FM IF system DESCRIPTION SA605 PIN CONFIGURATION The SA605 is a high performance monolithic low-power FM IF system incorporating a mixer/oscillator, two limiting intermediate frequency amplifiers, quadrature detector, muting, logarithmic received signal strength indicator (RSSI), and voltage regulator.
Philips Semiconductors Product specification High performance low power mixer FM IF system SA605 BLOCK DIAGRAM 20 19 18 17 16 15 14 13 IF AMP 12 11 LIMITER RSSI OSCILLATOR 1 2 E B 3 4 5 6 7 8 9 10 SR00336 Figure 2.
Philips Semiconductors Product specification High performance low power mixer FM IF system SA605 AC ELECTRICAL CHARACTERISTICS TA = 25°C; VCC = +6V, unless otherwise stated. RF frequency = 45MHz + 14.5dBV RF input step-up; IF frequency = 455kHz; R17 = 5.1k; RF level = -45dBm; FM modulation = 1kHz with ±8kHz peak deviation. Audio output with C-message weighted filter and de-emphasis capacitor. Test circuit Figure 3.
Philips Semiconductors Product specification High performance low power mixer FM IF system network does not cause 12dB(v) insertion loss, a fixed or variable resistor can be added between the first IF output (Pin 16) and the interstage network. CIRCUIT DESCRIPTION The SA605 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 39.7dB(v) of gain from a 50Ω source.
Philips Semiconductors Product specification High performance low power mixer FM IF system -25dB, -10dB, 1500/50Ω PAD 50/50Ω PAD -29dB, 929/50Ω PAD 2430 3880 SW8 19 18 SW7 16 C16 SW6 FLT2 17 1.3k C19 C21 C23 20 71.5 R17 5.1k C22 FLT1 51.7 32.8 C20 C24 -36dB, 156k/50Ω PAD 96.5 71.5 32.6 SW9 -10.6dB, 50/50Ω PAD 51.5 96.5 50.
Philips Semiconductors Product specification High performance low power mixer FM IF system SA605 R17 5.
Philips Semiconductors Product specification High performance low power mixer FM IF system RF GENERATOR 45MHz SA605 NE605 DEMO BOARD VCC (+6) RSSI AUDIO DATA C–MESSAGE DC VOLTMETER SCOPE HP339A DISTORTION ANALYZER SR00339 Figure 5. SA605 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.
Philips Semiconductors Product specification High performance low power mixer FM IF system SA605 20 RF = 45MHz IF = 455kHz VCC = 6V RELATIVE TO AUDIO OUTPUT (dB) AUDIO REF = 174mVRMS 0 5 –20 4 RSSI (Volts) THD NOISE 3 –40 AM (80%) 2 –60 –80 –100 –130 1 NOISE RSSI (Volts) 0 –110 –90 –70 –50 –30 –10 10 RF INPUT LEVEL (dBm) SR00340 Figure 6.
Philips Semiconductors Product specification High performance low power mixer FM IF system DIP20: plastic dual in-line package; 20 leads (300 mil) 1997 Nov 07 10 SA605 SOT146-1
Philips Semiconductors Product specification High performance low power mixer FM IF system SO20: plastic small outline package; 20 leads; body width 7.
Philips Semiconductors Product specification High performance low power mixer FM IF system SSOP20: plastic shrink small outline package; 20 leads; body width 4.
Philips Semiconductors Product specification High performance low power mixer FM IF system SA605 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.
