AN7086SAN7086S, Serwisówki TV, Układy Scalone
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ICs for Cassette, Cassette Deck AN7086S Recording/Playback Pre-/Power Amplifier IC for 3V Microcassette Overview The AN7086S is an integrated circuit developed for recording playback pre-/power amp., built-in VAS (Voice Activated System) function especially. Unit : mm 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 Features • Rec. playback pre-/power amp. IC • VAS function built-in • Earphone monitor at recording is possible • 350mW BTL, OCL power amp. built-in • Mic. amp built-in • ALC function built-in • Rec./Play switching is possible with a single circuit switch 0.3 7.2±0.3 9.4±0.3 24-Lead SOP Package (SOP024-P-0375) n Block Diagram GND NC 1/2 V CC V CC 24 23 22 21 20 19 18 17 16 15 14 13 + 55dB – ALC R/ P Cont. Rip p le Rej. – + Open Loop Gain 74dB + 20dB – + 14dB – + 24dB – + 14dB – 120k½ V A S Det. Po w er Mute 1 2 3 4 5 6 7 8 9 10 11 12 Power GND Power V CC n n AN7086S ICs for Cassette, Cassette Deck n Absolute Maximum Ratings (Ta=25˚C) Parameter Symbol Rating Unit Supply Voltage Supply Current Power Dissipation Operating Ambient Temperature Storage Temperature V CC I CC P D T opr T stg 6 1000 520 –20 ~ + 75 –55 ~ + 125 V mA mW ˚C ˚C n Recommended Operating Range (Ta= 25˚C) Parameter Symbol Range Operating Supply Voltage Range V CC 1.8V ~ 4.5V n Electrical Characteristics (V CC =3V, f=1kHz, Ta=25˚C) Parameter Symbol Condition min. typ. max. Unit Quiescent Circuit Current <Pre-Amp.> Open Circuit Gain Total Harmonic Distortion Maximum Output Voltage I tot At No Input/Playback 10 20 35 mA G V1 THD 1 V O1 V in = – 85dBV, R g = 1k½ V in = 3mVrms, R g = 1k½ THD= 1%, R g = 1k 65 74 0.1 0.6 1 dB % Vrms ½ 0.3 Noise Voltage Referred to Input V ni , DIN/AUDIO Filter ½ 1 1.8 µVrms <Recording Amp.> Close Circuit Gain Total Harmonic Distortion Maximum Output Voltage G V2 THD R V oR V nR V in = – 80dBV V in = – 80dBV THD = 5% R g = 2.2k½ , DIN/AUDIO Filter 69.5 72.5 1.3 1.08 75.5 3 dB % Vrms 0.8 Output Noise Voltage –46 –42 dBV <Power Amp.> Closed Circuit Gain Total Harmonic Distortion Maximum Output Voltage G V – P O THD – P O V O – P O V in = 5mVrms, R L = 8½ V in = 5mVrms, R L = 8 38.5 41 0.11 350 43.5 1 dB % mW ½ THD = 10%, R L = 8½ R g = 0½ , R L = 8½ , DIN/AUDIO Filter R g = 0½ , R L = 8½ , 300 Output Noise Voltage V DC –74 –65 dBV Output Offset Voltage <VAS> –50 0 50 mV VAS Operation Input Voltage VAS Mic. input level at Piny Voltage= 0.2V 8 14 18 µ Vrms <ALC> Effective Voltage Effective width <Ripple Rejection> V ALC W ALC V in = – 60dBV, R g = 1.5k½ V in = – 30dBV, R g = 1.5k –6.6 –4.5 1.5 –2.5 3 dBV % ½ Playback System Ripple Rejection RR P f r = 270Hz, V r = 30mVrms, R g = 1k½ f r = 270Hz, V r = 30mVrms, R g = 2.2k½ –70 –50 dBV Recording System Ripple Rejection RR R –40 –30 dBV <Switching Pin> Rec./Playback Switching Pin Rec./Playback Switching Pin V PB V REC Playback mode Recording mode 0.1 1.6 0.3 2.3 V V R g = 1k V n – P O ICs for Cassette, Cassette Deck AN7086S n Characteristics Curve Pre. Amp. Power Amp. Rec. Amp. Input/Output Characteristics V out , THD-V in Input/Output Characteristics V out , THD-V in Input/Output Characteristics V out , THD-V in 10 100 10 100 10 100 V CC =3V R L =5 0 k½ f req. =1kHz V CC =3V R L =8 0 ½ f req. =1kHz V CC =3V f req. =1 k Hz R L =10k½ 5 3 30 3 30 3 30 1 10 1 10 1 10 0.5 0.3 3 0.3 V O 3 0.3 V out 3 V O THD 0.1 0.05 0.03 1 0.1 1 0.1 1 THD 0.3 0.03 THD 0.3 0.03 0.3 0.01 0.1 0.01 0.1 0.01 0.1 0.3 0.5 1 3 5 10 0.3 1 3 10 30 100 0.003 0.01 0.03 0.1 0.3 1 Input Voltage V in (mVrms) Input Voltage V in (mVrms) Input Voltage V in (mVrms) Pre. Amp. Pre. Amp. Frequency Characteristics G V , THD – f Maximum Output Voltage V O max. – V CC 1.2 50 V CC =3V R L =150k½ V out = –10dBV 1.0 f req. =1kHz R L =50k½ THD=1% 40 0.8 G V 0.6 30 3 2 1 0.4 0.2 THD 10 30 100 300 1k 3k 10k 30k 100k 0 0 0 1 2 3 4 5 6 Frequency f (Hz) Supply Voltage V CC (V) Pre. Amp. Power Amp. 40 Supply Voltage Characteristics V CC – G V , THD Frequency Characteristics G V , THD – f V O = –10dBV f req. =1kHz R L =50k½ V CC =3V R L =8½ V O = –10dBV 38 50 G V V O 36 40 34 3 4 3 2 32 2 30 THD THD 30 1 1 0 1 2 3 4 5 6 0 10 30 100 300 1k 3k 10k 30k 100k Supply Voltage V CC (V) Frequency f (Hz) AN7086S ICs for Cassette, Cassette Deck Power Amp. Power Amp. Maximum Output Power P O max. – V CC Supply Voltage Characteristics G V , THD – V CC 1.2 THD=10% f req. =1kHz R L =8 V O =10dBV f req. =1kHz R L =8 44 1.0 ½ ½ 42 G V 0.8 40 0.6 5 38 4 0.4 3 2 0.2 THD 1 0 0 0 1 2 3 4 5 6 0 1 2 3 4 5 6 Supply Voltage V CC (V) Supply Voltage V CC (V) Rec. Amp. Rec. Amp. 80 Frequency Characteristics G V , THD – f 2.4 Maximum Output Voltage V O max. – V CC V CC =3V V O =–5dBV R L =10k½ THD=10% f req. =1kHz R L =10k 2.0 ½ G V 70 1.6 60 4 1.2 THD 3 0.8 50 2 1 0.4 40 10 100 1k 10k 100k 0 0 0 1 2 3 4 5 6 Frequency f (Hz) Supply Voltage V CC (V) Rec. Amp. ALC Supply Voltage Characteristics G V , THD – V CC Input/Output Characteristics V out , THD – V in 0 V O =5dB f req. =1k V CC =3V f req. =1kHz R L =10k½ 80 ½ R L =10k –2 ½ 76 G V –4 V out 72 –6 68 5 5 4 –8 4 64 THD 3 THD 3 2 2 60 1 1 0 1 2 3 4 5 6 0 –80 –60 –40 –20 0 0 Supply Voltage V CC (V) Input Voltage V in (dBV) ICs for Cassette, Cassette Deck AN7086S n Application Circuit 0.00 4 7 µ F 33µF 14k½ Rec. 1.5k½ PLAY 0.01 µ F + 1M½ 2.2µF 4.7 µ + + Mic. 10k½ V CC 220µF + 2 20 µ F 2 20 µ F 0.1µF 4.7 µ F Head + + + 24 23 22 21 20 19 18 17 16 15 14 13 AN7086S 1 2 3 4 5 6 7 8 9 10 11 12 40k ½ + 0. 22µ F + + 0.033µ F 4.7µF 2.2µF 33µF 4.7k½ 2.2k ½ + 0.22µF + 82 ½ 0.01µF 33 µ + VAS OFF 33 µ F V CC Speaker 8½ PAUSE 47µF to Motor n Pin Descriptions Pin No. Pin Name Pin No. Pin Name 1 2 3 4 5 6 7 8 9 10 11 12 Pre-Amp. NF Pin Pre-Amp. Output Pin Power Amp. Input Pin Power Amp. NF Pin VAS Detection MOTOR Output Pin Power Mute Pin Power Output 1 Pin B.S.1 Power GND Power V CC Power Output 2-pin 13 14 15 16 17 18 19 20 21 22 23 24 B.S.2 V CC Filter Pin Center Rec./Play Switching Pin ALC Detection NC Rec. Amp. Output Pin Mic. Amp. NF Pin Mic. Amp. Input Pin Pre. GND Pre. Amp. Input Pin F F [ Pobierz całość w formacie PDF ] |
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