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SA614A Dataheets PDF



Part Number SA614A
Manufacturers Philips
Logo Philips
Description Low power FM IF system
Datasheet SA614A DatasheetSA614A Datasheet (PDF)

RF COMMUNICATIONS PRODUCTS SA614A Low power FM IF system Product specification Replaces data of December 15, 1994 IC17 Data Handbook 1997 Nov 07 Philips Semiconductors Philips Semiconductors Product specification Low power FM IF system SA614A DESCRIPTION The SA614A is an improved monolithic low-power FM IF system incorporating two limiting intermediate frequency amplifiers, quadrature detector, muting, logarithmic received signal strength indicator, and voltage regulator. The SA614A featu.

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RF COMMUNICATIONS PRODUCTS SA614A Low power FM IF system Product specification Replaces data of December 15, 1994 IC17 Data Handbook 1997 Nov 07 Philips Semiconductors Philips Semiconductors Product specification Low power FM IF system SA614A DESCRIPTION The SA614A is an improved monolithic low-power FM IF system incorporating two limiting intermediate frequency amplifiers, quadrature detector, muting, logarithmic received signal strength indicator, and voltage regulator. The SA614A features higher IF bandwidth (25MHz) and temperature compensated RSSI and limiters permitting higher performance application compared with the SA604. The SA614A is available in a 16-lead dual-in-line plastic and 16-lead SO (surface-mounted miniature) package. PIN CONFIGURATION D and N Packages IF AMP DECOUPLING 1 GND 2 MUTE INPUT 3 VCC 4 16 IF AMP INPUT 15 IF AMP DECOUPLING 14 IF AMP OUTPUT 13 GND 12 LIMITER INPUT 11 LIMITER DECOUPLING 10 LIMITER DECOUPLING 9 LIMITER RSSI OUTPUT 5 MUTE AUDIO OUTPUT 6 FEATURES • Low power consumption: 3.3mA typical • Temperature compensated logarithmic Received Signal Strength Indicator (RSSI) with a dynamic range in excess of 90dB UNMUTE AUDIO OUTPUT 7 QUADRATURE INPUT 8 SR00323 • Two audio outputs - muted and unmuted • Low external component count; suitable for crystal/ceramic filters • Excellent sensitivity: 1.5µV across input pins (0.22µV into 50Ω matching network) for 12dB SINAD (Signal to Noise and Distortion ratio) at 455kHz Figure 1. Pin Configuration APPLICATIONS • SA614A meets cellular radio specifications • Cellular radio FM IF • High performance communications receivers • Intermediate frequency amplification and detection up to 25MHz • RF level meter • Spectrum analyzer • Instrumentation • FSK and ASK data receivers ORDERING INFORMATION DESCRIPTION 16-Pin Plastic Dual In-Line Package (DIP) 16-Pin Plastic Small Outline (SO) package (Surface-mount) TEMPERATURE RANGE -40 to +85°C -40 to +85°C ORDER CODE SA614AN SA614AD DWG # SOT38-4 SOT109-1 1997 Nov 07 2 853-0594 18663 Philips Semiconductors Product specification Low power FM IF system SA614A BLOCK DIAGRAM 16 15 14 13 GND IF AMP LIMITER QUAD DET 12 11 10 9 LIMITER SIGNAL STRENGTH VOLTAGE REGULATOR MUTE GND VCC 1 2 3 4 5 6 7 8 SR00324 Figure 2. Block Diagram ABSOLUTE MAXIMUM RATINGS SYMBOL VCC TSTG TA θJA Single supply voltage Storage temperature range Operating ambient temperature range SA614A Thermal impedance D package N package PARAMETER RATING 9 -65 to +150 -40 to +85 90 75 UNITS V °C °C °C/W °C/W DC ELECTRICAL CHARACTERISTICS VCC = +6V, TA = 25°C; unless otherwise stated. LIMITS SYMBOL PARAMETER TEST CONDITIONS MIN VCC ICC Power supply voltage range DC current drain Mute switch input threshold (ON) (OFF) 4.5 2.5 1.7 3.3 SA614A TYP MAX 8.0 4.0 1.0 V mA V V UNITS 1997 Nov 07 3 Philips Semiconductors Product specification Low power FM IF system SA614A AC ELECTRICAL CHARACTERISTICS Typical reading at TA = 25°C; VCC = +6V, unless otherwise stated. IF frequency = 455kHz; IF level = -47dBm; 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 assure consistent electrical characterristics. 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 Input limiting -3dB AM rejection Recovered audio level Recovered audio level THD S/N Total harmonic distortion Signal-to-noise ratio No modulation for noise RF level = -118dBm RSSI output1 RF level = -68dBm RF level = -18dBm RSSI range RSSI accuracy IF input impedance IF output impedance Limiter input impedance Unmuted audio output resistance Muted audio output resistance R4 = 100k (Pin 5) R4 = 100k (Pin 5) 1.4 0.85 1.4 0 1.7 3.6 Test at Pin 16 80% AM 1kHz 15nF de-emphasis 150pF de-emphasis -30 25 60 SA614A TYP -92 33 175 530 -42 68 160 2.50 4.80 80 +2.0 1.6 1.0 1.6 58 58 800 3.3 5.8 260 MAX dBm/50Ω dB mVRMS mVRMS dB dB mV V V dB dB kΩ kΩ kΩ kΩ kΩ UNITS NOTE: 1. SA614A data sheets refer to power at 50Ω input termination; about 21dB less power actually enters the internal 1.5k input. SA614A (50) SA614A (1.5k)/SA615 (1.5k) -97dBm -118dBm -47dBm -68dBm +3dBm -18dBm The SA615 and SA614A are both derived from the same basic die. The SA615 performance plots are directly applicable to the SA614A. 1997 Nov 07 4 Philips Semiconductors Product specification Low power FM IF system SA614A NE614A TEST CIRCUIT F1 C4 C1 INPUT R1 Q = 20 LOADED R2 C2 R3 16 15 14 13 12 11 10 C5 C6 F2 9 C7 SA614A C3 1 2 3 4 5 6 7 8 C8 S1 R4 C9 C10 C12 C11 RSSI OUTPUT AUDIO OUTPUT DATA OUTPUT MUTE INPUT C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 F1 F2 R1 R2 R3 R4 100nF + 80 – 20% 63V K10000–25V Ceramic 100nF +10% 50V 100nF +10% 50V 100nF +10% 50V 100nF +10% 50V 10pF +2% 10.


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