AN7293NFBQ PANASONIC | Alldatasheet

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FM-IF, NC, MPX IC for Car Radio n Overview The AN7293NFBQ is an IC having FM-IF, NC and MPX function for car radio. A tuner block of car radio can be constructed by this IC and the AN7289NFBQ/NSC. n Features

  • A less number of external components is required (8 components reduction compared with our conventional IC)
  • Neighbering-station interference characteristics im- provement by band-ATC function
  • Band-mute on/off function
  • DIL package product (the AN7293NSC) is also available n Applications
  • Car radios 7.0±0.3 (0.55) 1.4±0.2 0.1±0.1 9.2±0.4 7.0±0.3 0.8 9.2±0.4 0.3+0.10 –0.050.15+0.10 –0.05 24 17 Unit: mm SSOP032-P-0375 Forced mono ATC-Adj. SEP-Adj. R-Out L-Out Mute-Adj. SD-Adj. AFC ST-Ind. Mono: high Stereo: low V REF IF-In V S Out V BAND IF det. IF limiter Level det. Multipath det. Band-det. SD IF-counter Mute PNL Noise det. Demod. VCO PLL Pilot det. GND V REF V CC

AN7293NFBQ ICs for FM/AM Tuner n Pin Description Pin No. Description

17 Detection output

18 PNL output hold

19 SD/FM-IF counter output/stereo indicator

20 SD sensitivity adjustment

21 AFC voltage

22 V CC

23 FM detection

24 Soft mute adjustment

25 GND

26 V REF

27 IF bypass

28 IF input

29 Control voltage adjustment

30 Control voltage

31 Multi-path noise input

32 Multi-path detection

Pin No. Description

1 ASC adjustment/forced monaural

2 ATC adjustment

3 Separation adjustment

4 ATC low-pass filter

5 R-ch. output 6 L-ch. output

7 Mute voltage

8 Pilot detection low-pass filter

9 PLL low-pass filter

10 PLL low-pass filter

11 VCO

12 Pilot cancel control low-pass filter

13 Band signal output/band mute SW

14 PNL low-pass filter

15 PNL AGC

16 PNL input

Parameter Symbol Rating Unit Supply voltage V CC 9.1 V Supply current I CC 45 mA Power dissipation *2 PD 343.3 mW Operating ambient temperature *1 T opr -30 to +80 °C Storage temperature *1 Tstg -55 to +125 °C n Absolute Maximum Ratings Note) *1: Except for the power dissipation, operating ambient temperature, and storage temperature, all ratings are for Ta = 25°C. *2: Ta = 80°C n Recommended Operating Range Parameter Symbol Range Unit Supply voltage V CC 7.2 to 9.0 V

ICs for FM/AM Tuner AN7293NFBQ n Electrical Characteristics at Ta = 25°C Unless otherwise specified, VCC = 8V, VIN1 is f = 10.70 MHz, Mod. = 1 kHz, 30% FM modulation stereo input is L + R = 90% VP = 10% Parameter Symbol Conditions Min Typ Max Unit Control voltage (1) V C1 Without signal input, pin 30 DC voltage0.0 0.3 0.9 V Control voltage (2) V C2 V IN1 = 40 dBm, pin 30 DC voltage 0.6 1.3 1.6 V Control voltage (3) V C3 V IN1 = 70 dBm, pin 30 DC voltage 2.4 3.1 3.8 V Control voltage (4) V C4 V IN1 = 100 dBm, pin 30 DC voltage 4.5 5.3 5.8 V Control voltage (5) V C5 V C5 = VC3 - VC2 1.8 2.0 2.2 V Control voltage (6) V C6 V C6 = VC4 - VC3 1.85 2.05 2.25 V Output level L-channel V OL V IN1 = 70 dBm, pin 6 AC voltage 85 105 125 mV[rms] Output level R-channel V OR V IN1 = 70 dBm, pin 5 AC voltage 85 105 125 mV[rms] Channel balance CB CB = 20·log (VOL /VOR ) -1.0 0 1.0 dB Residual pilot voltage V PC V P = 10% modulation, VIN1 = 70 dBm, ¾ 41 4 mV[rms] pin 18 output voltage Stereo lamp light up level LAMP ON 19 kHz modulation, Modulation factor 1.3 4.0 6.3 % at which pin 19 becomes under 1 V Separation L-channel Sep L L+R = 90% , VP = 10% 25 33 ¾ dB Larger separation value after Separation R-channel Sep R changing over pin 3 external resistor 25 33 ¾ dB Capture range CR Modulation at V P = 6.5% –0.4 –0.7 ¾% Referred to 19 kHz Counter output level (1) VIF 1 V IN1 = 100 dBm, V20 = 2 V 135 155 175 mV[rms] pin 19 output voltage Counter output level (2) VIF 2 V IN1 = 100 dBm, V20 = 5 V 0 2 5 mV[rms] pin 19 output voltage Monaural THD (L) THD L V IN2 monaural input, 500 mV[0-p]¾ 0.1 0.3 % 1 kHz, L-ch. output distortion factor Monaural THD (R) THD R V IN2 monaural input, 500 mV[0-p]¾ 0.1 0.3 % 1 kHz, R-ch. output distortion factor Stereo THD (L) THD STL V IN2 stereo input, 500 mV[0-p] ¾ 0.1 0.3 % 1 kHz, L-ch. output distortion factor Stereo THD (R) THD STR V IN2 stereo input, 500 mV[0-p] ¾ 0.1 0.3 % 1 kHz, R-ch. output distortion factor PNL-AGC voltage (1) V AGC1 V IN2 = Without input 1.2 1.4 1.7 V pin 15 DC voltage PNL-AGC voltage (2) V AGC2 V IN2 = 100 mV, f = 100 kHz input 0.1 0.35 0.60 V Difference from VAGC1 Residual noise voltage V NR V IN2 = (pulse width 10 ms, 1 V[p-p] 0.0 0.2 0.7 mV[rms] 1 kHz) L-ch. output

AN7293NFBQ ICs for FM/AM Tuner n Electrical Characteristics at Ta = 25°C (continued) Unless otherwise specified, VCC = 8V, VIN1 is f = 10.70 MHz, Mod. = 1 kHz, 30% FM modulation stereo input is L + R = 90% VP = 10% Parameter Symbol Conditions Min Typ Max Unit SD sensitivity SD S V IN1 when V20 = 2 V, V19 > 2 V 70 80 90 dB m SD bandwidth SD W V IN bandwidth when V24 = 2 V, 100 130 160 kHz and V19 > 2 V, VIN1 = 100 dBm Supply current I TOT Without input 30 37 44 mA Limiting sensitivity V LIM V IN1 input level when pin 5 AC 24 32 38 dB m voltage drops by 3 dB ATC V ATC L-ch. output ratio when 7 11 15 dB V 2 = 2 V and 0 V Gate pulse width PW V IN2 = (pulse width 1 ms, 0.3 V[p-p] 16 23 30 ms 1 kHz) pin 18 output pulse width

  • Design reference data Note) The following characteristics are the reference values for design and not guaranteed values. Parameter Symbol Conditions Min Typ Max Unit Stereo lamp turn off level LAMP OFF Ratio between the modulation factor 2.0 6.010.0 dB when pin 19 becomes 2 V or more and LAMP ON AFC offset voltage V AFC Without signal input, DC potential- 0.1 0.0 0.1 V difference between pin 21 and pin 26.

ICs for FM/AM Tuner AN7293NFBQ n Application circuit Example Forced mono ATC-Adj. ASC-Adj. SEP-Adj. R-Out L-Out Mute-Adj. AFC ST-Ind. Mono: high Stereo: low V REF IF-In V S Out V BAND V CC 50 kW 50 kW 10 kW 0.1 mF 0.01 mF 0.022 mF 0.022 mF 0.1 mF 0.1 mF 0.1 mF 1 mF 0.1 mF 0.047 mF 0.47 mF 912kHz 10 kW 330 kW 100 mF 0.1 mF 0.1 mF 0.01 mF 0.01 mF 0.1mF 680 pF 470 pF50 kW 2.2 kW 180 pF 100 kW 100 kW 10 kW IF-Counter SD SD-Adj.Seek/Lamp ST-Lamp: high (4.5 V or more) Seek: Open 0.1 mF GND V S-Adj. 0.1 mF 0.01 mF Ms 3 Ms 3 0.022 mF 50 kW 100 kW 330 kW V CC 1000pF IF det. IF limiter Level det. Multipath det. Band-det. SD IF-counter Mute PNL Noise det. Demod. VCO PLL Pilot det. V REF