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| ICs for FM/AM Tuner AN7298FBP FM-IF, NC, and MPX IC for car radio I Overview The AN7298FBP is an IC for car radio. The FM-IF, NC (Noise Canceler) and MPX functions are integrated into a single chip. The IC has the higher functions than our conventional IC (AN7292NSC) and the characteristics of multi-pass detection, mute and SD functions are improved. 36 25 0.30.1 12.00.3 1.30.1 1.30.1 2.80.2 0.15 -0.05 +0.1 Unit: mm 37 24 48 13 I Features 0.10.1 * IF sensitivity is high. (limiting sensitivity 26 dB) * Adjustment-free VCO (912 kHz) * Good linearity of S-meter output (adjusting funciton) 1 12 I Applications * Car radios (0.55) 12.00.3 14.20.4 QFH048-P-1212 Note) The package of this product will be changed to lead-free type (QFH048-P-1212B). See the new package dimensions section later of this datasheet. 14.20.4 0.8 Publication date: November 2001 SDC00009BEB 1 AN7298FBP I Block Diagram GND VCC 35 34 33 32 31 30 29 36 28 27 26 37 2nd limiter 25 24 38 Quad det. AFC amp. 23 Band det. SD IF count. 39 Reg. 40 Mute amp. 22 21 41 1st limiter Pulse det. AGC 20 PNL 42 19 43 18 Pilot det. 44 Vcont det. Vcont DC amp. 17 Pilot canceler 45 16 46 Multipath detector ASC .ATC stereo demod. Divider VCO 15 47 14 48 13 10 11 2 SDC00009BEB 12 1 2 3 4 5 6 7 8 9 AN7298FBP I Pin Descriptions Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Description ASC adjustment ATC adjustment Separation adjustment ATC LPF R-ch. output L-ch. output Control voltage output Band mute control Soft mute filter Phase detection filter1 Forced monaural Phase detection filter 2-1 SD startup time constant setting Phase detection filter 2-2 VCO Phase detection filter 3 Pilot canceler negation filter PNL LPF PNL LPF PNL gate pulse filter PNL AGC PNL input PNL HPF IF-counter output stop Pin No. 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 Description IF detection output PNL output hold SD/IF counter output SD sensitivity adjustment AFC output VCC IF detection coil Limiter output Soft mute adjustment Stereo lamp drive 2nd limiter output GND Mute adjustment 1st limiter Reference voltage 1st limiter output GND 1st limiter bias IF input Mute slope adjustment Control voltage adjustment Control voltage output Control voltage input ASC Control voltage detection I Absolute Maximum Ratings Parameter Supply voltage Supply current Power dissipation *2 *1 Symbol VCC ICC PD Topr Tstg Rating 9.7 48 301 -30 to +80 -55 to +125 Unit V mA mW C C Operating ambient temperature Storage temperature *1 Note) *1 : All parameter values except for the power dissipation, the operating ambient temperature and the storage temperature are Ta = 25C. *2 : Power dissipation of IC alone at Ta = 80C. SDC00009BEB 3 AN7298FBP I Recommended Operating Range Parameter Supply voltage Symbol VCC Range 7.2 to 9.6 Unit V I Electrical Characteristics at VCC = 8 V, fIN = 10.70 MHz, fmod = 1 kHz 30%FM, Ta = 25C Parameter Control voltage 1 Control voltage 2 Control voltage 3 Control voltage 4 Control voltage 5 Control voltage 6 AFC offset voltage Output level L Output level R Channel balance Limiting sensitivity Residual pilot voltage Stereo lamp on-level Stereo lamp off-level Symbol VC1 VC2 VC3 VC4 VC5 VC6 VAFC VOL VOR CB Vlim VPC LampON LampOFF Conditions Without input, pin 45 DC voltage VIN = 40 dB, pin 45 DC voltage VIN = 70 dB, pin 45 DC voltage VC5 = VC3-VC2 VC6 = VC4-VC3 Without input, DC voltage between pin 29 and pin 39 VIN = 70dB, pin 6 AC voltage VIN = 70dB, pin 5 AC voltage CB = 20Log (VOL /VOR) VOL to 0 dB. Input when pin 6 AC voltage drops by 3 dB Pin 26 output when VIN = 70 dB, pilot signal 10% modulation Modulation with pilot signal only, DC voltage of pin 34 is below 2 V Modulation with pilot signal only. Ratio of stereo lamp on and off level VIN = 70 dB, L+R = 90% Pilot 10% VIN = 70 dB, L+R = 90% Pilot 10% VIN = 70 dB, pilot signal 6.5% modulation VIN = 70 dB, pin 28 = 0V, pin 27 10.7 MHz, output voltage VIN = 70 dB, pin 28 = VCC, pin 27 AC output voltage Without input, pin 11 = 0 V Monaural input 400 mV, 1kHz, L-ch. distortion Monaural input 400 mV, 1kHz, R-ch. distortion Min 0.05 1.20 2.75 Typ 0.50 1.65 3.45 5.35 1.80 1.90 0.0 110 110 0.0 26 4 3.5 6.0 Max 0.90 2.10 4.15 6.25 2.00 2.10 0.1 Unit V V V V V V V VIN =100 dB, pin 45 DC voltage 4.45 1.60 1.70 - 0.1 90 90 -1.0 20.0 1.0 2.0 130 mV[rms] 130 mV[rms] 1.0 30.0 dB dB 14.0 mV[rms] 6.0 10.0 % dB Separation L-ch. Separation R-ch. Capture range Counter output level 1 Counter output level 2 Power supply current Monaural THD (L-ch.) Monaural THD (R-ch.) SepL SepR CR VIF1 VIF2 Itot THDL THDR 25 25 +0.6 -0.2 0 85 28.0 33 33 +0.8 0.4 2.0 100 35.0 0.15 0.15 5.0 dB dB % mV[rms] 115 mV[rms] 42.0 0.3 0.3 mA % % 4 SDC00009BEB AN7298FBP I Electrical Characteristics at VCC = 8 V, fIN = 10.70 MHz, fmod = 1 kHz 30%FM, Ta = 25C (continued) Parameter Stereo THD (L-ch.) Stereo THD (R-ch.) AGC voltage 1 AGC voltage 2 Noise detection voltage Gate pulse width Residual noise voltage SD bandwidth SD sensitivity Symbol THDSL THDSR VAGC1 VAGC2 VDET PW VNR SDW SDS Conditions Stereo, L+R = 360 mV,VP = 40 mV, L-ch. distortion Stereo, L+R = 360 mV,VP = 40 mV, R-ch. distortion Input = 0, RS = 600 , pin 21 DC voltage Input VIN2 = 2 mV[rms], 150 kHz, pin 21 DS voltage VIN2 = 100 mV[rms],150 kHz, pin 20 DC voltage VIN2 = 0.3 V[p-p], tW=1 s, f=1 kHz, pin 26 output pulse width VIN2 =1 V[p-p], tW =10 s, f=1 kHz, input through LPF, L-ch. output Bandwidth when SD output (pin 27) is over 4.5 V, V28 = 2.7 V Input when SD output (pin 27) is over 4.5 V, V28 = 2.7 V Min 1.3 19 110 45 Typ 0.15 0.15 0.0 1.48 0.0 24 0.0 140 55 Max 0.3 0.3 0.4 1.65 0.3 29 1.2 170 65 Unit % % V V V s mV[rms] kHz dB SDC00009BEB 5 AN7298FBP I Application Circuit Example VAF (IF detection output) 26 25 24 23 22 21 20 19 18 17 16 15 14 13 36 GND 35 34 33 32 31 30 29 AFC output 28 37 38 Vref 39 40 41 IF input 50 42 43 44 45 Vcont 46 47 48 27 SD output Counter output VCC (8 V) IF counter stop 10 11 12 Monaural Stereo 1 2 3 4 5 6 7 8 9 R out 6 L out 2 1 SDC00009BEB Forced monaural Band mute On Off AN7298FBP I New Package Dimensions (Unit: mm) * QFH048-P-1212B (Lead-free package) 14.200.40 12.000.30 36 37 25 24 (1.60) 48 1 (1.60) 0.80 12 0.30+0.10 -0.05 13 (1.10) 0.15-0.05 +0.10 0 to 10 (0.55) 1.300.10 Seating plane 0.100.10 1.300.10 2.800.20 12.000.30 14.200.40 SDC00009BEB 7 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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