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| ICs for FM/AM Tuner AN7289NSC FM-FE+AM IC for car radio s Overview The AN7289NSC is an IC having FM-FE+AM functions for car radio. A tuner block of car radio can be constructed by combination of this IC and the AN7293NSC / NFBQ. 17.810.3 32 17 Unit: mm s Features * A less number of electrolytic capacitors is required (3 capacitors reduction compared with our conventional IC) * AM: Practical sensitivity is improved by 2 dB by ATC * AM: Strong input characteristics is improved by 2-loop AGC function 1 16 7.20.3 9.30.3 1.23 0.350.1 1.0 Seating plane s Applications * Car radios SSOP032-P-0375 s Block Diagram GND2 32 31 30 29 28 27 26 25 24 23 22 21 20 19 0.10.1 0.9 2.00.2 0.15 18 15 FE OSC AM OSC FM AGC FM/AM SW FM mix. AM RF-AGC AM mix. AM.S-meter FM IF-amp. AM ATC 1 2 3 AM IF-AGC 4 5 AM det. 6 7 AM SSC 10 8 9 AM IF-amp. 11 12 13 14 16 1 GND1 VCC 17 0.3 AN7289NSC s Pin Description Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Description FM-keyed-AGC input AM-AF output / LO setting AM-ATC input AM-IF level detection AM detection output VCC1 AM-IF counter output / DX / LO SW AM-SD output AM-signal meter output FM-IF output AM-IF output GND1 SSC AM-RF level detection AM-WAGC detection / DX setting AM-IF input AM-mix. output 31 32 Pin No. 18 19 20 21 22 23 24 25 26 27 28 29 30 ICs for FM/AM Tuner Description FM-IF input AM-RF gain control AM-mix. input FM-PIN-diode driver AM-OSC coil pin FM-mix. output (2) FM-mix. output (1) FM-PIN-diode driver FM-mix. input VCC2 / FM / AM SW FM-AGC output FM-OSC buffer output AM-OSC buffer output / FE-AGC sensitivity setting GND2 FM-OSC coil pin s Absolute Maximum Ratings Parameter Supply voltage Supply current Power dissipation *2 *1 Symbol VCC ICC PD Topr Tstg *1 Rating 9.1 56 380.2 -35 to +80 -55 to +125 Unit V mA mW C C Operating ambient temperature Storage temperature Note) *1 : Except for the power dissipation, operating ambient temperature, and storage temperature, all ratings are for Ta = 25C. *2: Ta = 80C s Recommended Operating Range Parameter Supply voltage Symbol VCC Range 7.2 to 9.0 Unit V 2 ICs for FM/AM Tuner s Electrical Characteristics at Ta = 25C 1. AM mode VCC = 8.0 V, fIN = 1 MHz AM tuning condition: OSC output frequency = 1 450 kHz 500 Hz AN7289NSC Parameter AM consumption current AM-AF output AM signal-to-noise ratio AM-AGC width AM-ATC operation Symbol amIt1 amVO amSN amW amATC Conditions Without input AM-AF output at VIN2 = 74 dB, 400 Hz 30% AM-AF output S/N at VIN2 = 74 dB, 400 Hz 30% AM-AF output when input changes -10 dB at VIN2 = 74 dB, 400 Hz 30% (Output ratio [dB] of 400 Hz and 3 kHz when VIN2 = 18 dB) - (Output ratio [dB] of 400 Hz and 3 kHz when VIN2 = 74 dB) 80% Mod., AM-AF Out output VIN2 = 74 dB 400 Hz 80% AM-AF output distortion VIN2 = 130 dB 400 Hz 80% AM-AF output distortion fIN2 = 1.4 MHz Input when pin 15 voltage becomes below 3 V Without input VIN2 = 40 dB Without input VIN2 = 40 dB Without input Without input, pin 9 voltage Pin 9 voltage at VIN2 = 30 dB Pin 9 voltage at VIN2 = 130 dB AM-IF count output is 120 mV or over VIN2 when f becomes 450 kHz 2 kHz AM-IF count output is 120 mV or over VIN2 when f becomes 450 kHz 2 kHz Min 28 100 48 55 3.5 Typ 36 125 52 59 6.5 Max 44 155 58 63 9.5 Unit mA mA dB dB dB AM-distortion 1 AM-distortion 2 AM wide band AGC on input AM local oscillation buffer output AM-IF count output 1 AM-IF count output 2 AM-SD output 1 AM-SD output 2 AM signal meter output 1 AM signal meter output 2 AM signal meter output 3 AM search sensitivity DX AM search sensitivity LO amT1 amT2 amVW amVOS amIF1 amIF2 amSD1 amSD2 amVS1 amVS2 amVS3 amDX amLO 0.01 0.01 97 160 150 4.5 0.0 1 0.7 4.1 24 44 0.5 0.5 103 210 210 4.9 0.2 50 0.95 4.8 30 50 1.5 1.5 109 260 270 10 5.1 0.5 200 1.2 5.1 36 56 % % dB mV mV mV V V mV V V dB dB 3 AN7289NSC s Electrical Characteristics at Ta = 25C (continued) 2. FM mode VCC = 8.0 V, fIN1 = 98 MHz FM tuning condition: OSC output frequency = 108.7 MHz 10 kHz ICs for FM/AM Tuner Parameter FM local oscillation buffer output FM-IF output level FM-AGC sensitivity FM-AGC voltage (high) FM-AGC voltage (low) FM consumption current Symbol fmVOS fmIF fmAGC fmVaH fmVaL fmIt Conditions fOSC = 108.7 MHz without input VIN1 = 71 dB VIN1 level when V28 becomes 3 V VIN1 = 70 dB V28 VIN1 = 82 dB V28 Without input Min 140 50 59 6.0 26 Typ 200 95 63 6.4 0.05 35 Max 260 140 67 6.8 0.5 44 Unit mV mV dB V V mA s Application Circuit Example AM-VT FM-MIX In VfOSC VaOSC FE-VT 32 31 30 29 28 27 26 25 FM-Pin D FM-AGC 24 23 22 21 AM-ANT 20 19 18 15 FE OSC AM OSC FM AGC FM/AM SW FM mix. AM RF-AGC AM mix. AM.S-meter FM IF-amp. AM ATC AM IF-AGC AM det. AM SSC AM IF-amp. 10 11 12 13 14 KEYED-AGC In 16 1 2 3 4 5 6 7 8 9 17 VCC AM-IF Count AM-SD Out AM-S.Meter AM-AF Out 4 FM-IF Out 5V Request for your special attention and precautions in using the technical information and semiconductors described in this material (1) An export permit needs to be obtained from the competent authorities of the Japanese Government if any of the products or technologies described in this material and controlled under the "Foreign Exchange and Foreign Trade Law" is to be exported or taken out of Japan. (2) The technical information described in this material is limited to showing representative characteristics and applied circuit examples of the products. It does not constitute the warranting of industrial property, the granting of relative rights, or the granting of any license. (3) The products described in this material are intended to be used for standard applications or general electronic equipment (such as office equipment, communications equipment, measuring instruments and household appliances). Consult our sales staff in advance for information on the following applications: * Special applications (such as for airplanes, aerospace, automobiles, traffic control equipment, combustion equipment, life support systems and safety devices) in which exceptional quality and reliability are required, or if the failure or malfunction of the products may directly jeopardize life or harm the human body. * Any applications other than the standard applications intended. (4) The products and product specifications described in this material are subject to change without notice for reasons of modification and/or improvement. At the final stage of your design, purchasing, or use of the products, therefore, ask for the most up-to-date Product Standards in advance to make sure that the latest specifications satisfy your requirements. (5) When designing your equipment, comply with the guaranteed values, in particular those of maximum rating, the range of operating power supply voltage and heat radiation characteristics. Otherwise, we will not be liable for any defect which may arise later in your equipment. Even when the products are used within the guaranteed values, redundant design is recommended, so that such equipment may not violate relevant laws or regulations because of the function of our products. (6) When using products for which dry packing is required, observe the conditions (including shelf life and after-unpacking standby time) agreed upon when specification sheets are individually exchanged. (7) No part of this material may be reprinted or reproduced by any means without written permission from our company. Please read the following notes before using the datasheets A. These materials are intended as a reference to assist customers with the selection of Panasonic semiconductor products best suited to their applications. Due to modification or other reasons, any information contained in this material, such as available product types, technical data, and so on, is subject to change without notice. Customers are advised to contact our semiconductor sales office and obtain the latest information before starting precise technical research and/or purchasing activities. B. Panasonic is endeavoring to continually improve the quality and reliability of these materials but there is always the possibility that further rectifications will be required in the future. Therefore, Panasonic will not assume any liability for any damages arising from any errors etc. that may appear in this material. C. These materials are solely intended for a customer's individual use. Therefore, without the prior written approval of Panasonic, any other use such as reproducing, selling, or distributing this material to a third party, via the Internet or in any other way, is prohibited. 2001 MAR |
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