AN7411 PANASONIC | Alldatasheet
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— eee FM Stereo Multiplex Demodulator oo Unit : mm @ Description The AN7411 is a monolithic integrated circuit designed for 16 low voltage operating FM multiplex demodulator. » : 3s 3 32/6 3 d | > sd | be @ Features aw Lf @ LED mis-tuning protection circuit at transient 3.55 4.65 operation voltage 15 @ High performance (small gain loss, low distortion) 18 @ Provided with forced monaural and VCO stop circuits | . © Wide operating supply voltage: Voc = 3.6V ~ 14.4V lhe 16-Lead DIL Plastic Package (16-DIP) ® Block Diagram Vec Output In : Se ’ Double tf oa Forced | | Phase -*} Low = Lamp Amp. Ag Balance P| | Mono. | [Detector Fass) Trigger |") Driver Stereo Yt ee se Low 19kHz 19kHz Voltage | Phase [“] Base [7] V.C.0 [*] 38kHz [°) Zor [ “| 20" Fip- Stabilizer: Denese | Filter Killer | | Flip-Flop Flip-Flop Flop GND SE @® £932652 0014038 411 Panasonic 419
@ Absolute Maximum Ratings (Ta=25°C) Te [__syabeh—[ Rag Sony Wage [Veep Circuit Current mA Power Dissipation ee Storage Temperature Se ee Operating Supply Voltage Range: Vcc = 3.6V ~ 14.4V @ Electrical Characteristics (VCC=6V, Ta=25°C) Teal a a Separation | Sep_| Vas =135mV,fa=iktz, [30 | 45 | | a8 Total Harmonic Distortion (Stereo) Vp= 15m | [oo | o3 | % Total Harmonic Distortion (Monaural) [ [om[o3 | « Output Voltage(Monaural) Vin = 150mV, fn = 1kHz. | 135 | 15s [ 180 | mv Chel Balen rapetape Stereo Lamp ON Level Pilot signal (19kH2) [35 | 55 | 75 | mV Test Circuit (De-emphasis: approximately 75s) Frequency Check 19kH; {f Sirol Capacitor on” | Frequency 10kB 4710p (£1%) Counter Vp-40S0A 18k Ik: 0.47} 220.22 ele) oa game OH 4.7« __ Forced AC Volage " ‘WO Monaural (eter (Vp- a ay VCO Killer AC Voltage Stereo Signal AN7411 Meter (Vp- Modulator |_o 960A) (Vp-7632A) | $-0 pete SPS. (ae ( i & (19kHz, Distortion CR Oscillator ‘ey Q 38kHz) Meter (Vp- (Vp-7220) | SR, tT el 4 OT | Gy=200B 77028) anLyt | [Toor | + ton | vA Q 47h % 4 0.015p: 0.015p 27k > Mi} Veo MT Tete) 41%) =6V Note 1) VCO free-run frequency is adjusted to 19kHz (+10Hz) with frequency check terminal. Note 2) Outer component should be in less than (45%) unless otherwise specified. LPR. (3L-13) is afilter amplifier with gain 20dB manufactured by Koringiken. ——— Panasonic MB 4932852 0014039 358 ml 420
@ Application Circuit 18k 1k 0.47) 1%) om Sam OME ° Wo killer » oO TP eel yt SH) Input oH" r_| 0047p 1 Font I © LCh, Output 4 © RCh. Output 4m | ani 0.015p 7 T 0015p * Printed Circuit Board Layout please refer to AN7410N. @ Pin Pino Nowe 2 Coupling capacitor 4.7F (to front stage FM detector) 3 Coupling capacitor 0.047yF ( between pin 3 and 13) 4 | Left Channel Signal Output ‘Coupling capacitor 10uF (to next stage low frequency amplifier) (Built-in Output Load Resistor 4.7k2) _| De-emphasis capacitor 0.015pF (between pin 4 and GND) 5 | Right Channel Signal Output ‘Coupling capacitor LOMF (to next stage low frequency amplifier) (Built-in Output Load Resistor 4.7kQ) | De-emphasis capacitor 0.0154F (between pin 5 and GND)
6 Drive Terminal for Stereo Display Lamp | Lamp or LED (maximum supply voltage 12V)
8 | Channel Separation Adjusting Fixed resistor 27KQ (1%) (between pin 8 and GND) Best separation value is obtained by using VR 50k0(B) 9 | Emphasis Monaural VCO Emphasis Stop| Emphasis monaural operates at DC 0.9V (between pin 9 and GND) CO stops oscillation at more than 1.5V 10 | Stereo Switch Circuit Low pass filter capacitor 0.474F (between pin 10 and 11) Low Pass Filter (Capacitor with low leakage should be used) 11 | Stereo Switch Circuit Refer to pin 10 12 | 19kHz Frequency Check Resistor 47KQ (Protection resistor) [rere | evepn ite ancy ne B Refer tin’ 14 | PLLCircuit Filter element 0.22HF / 0.47uF + 1kQ (between pin 14 and 15) Low Pass Filter Condenser with low leakage current should be used. B Refer pin 4 16 | VCO Frequency Adjustment. ‘Condenser 470pF (£1%) // (between pin 16 and GND) OOO @™ 69328652 0024040 O7T a Panasonic 421