AN7086

ICs for Cassette, Cassette Deck AN7086S Recording/Playback Pre-/Power Amplifier IC for 3V Microcassette s Overview The AN7086S is an integrated circuit developed for recording playback pre-/power amp., built-in VAS (Voice Activated System) function especially. 0.45 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 2.0±0.2 Unit : mm s 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 switch 0.4±0.25 circuit 0.1±0.1 1.27 0.3 7.2±0.3 9.4±0.3 24-Lead SOP Package (SOP024-P-0375) s Block Diagram GND 24 23 22 21 20 NC 19 18 17 1/2 VCC 16 15 VCC 14 13 + 55dB – – + Open Loop Gain 74dB ALC R/P Cont. Ripple Rej. + 20dB – + 14dB – 120kΩ + 24dB – + 14dB – VAS Det. Power Mute 1 2 3 4 5 6 7 8 9 10 Power GND 11 Power VCC 0.15 0.925 12 15.3±0.3 AN7086S s Absolute Maximum Ratings (Ta=25˚C) Parameter Supply Voltage Supply Current Power Dissipation Operating Ambient Temperature Storage Temperature Symbol VCC ICC PD Topr Tstg ICs for Cassette, Cassette Deck Rating 6 1000 520 –20 ~ + 75 –55 ~ + 125 Unit V mA mW ˚C ˚C s Recommended Operating Range (Ta= 25˚C) Parameter Operating Supply Voltage Range Symbol VCC Range 1.8V ~ 4.5V s Electrical Characteristics (VCC=3V, f=1kHz, Ta=25˚C) Parameter Quiescent Circuit Current Open Circuit Gain Total Harmonic Distortion Maximum Output Voltage Noise Voltage Referred to Input Close Circuit Gain Total Harmonic Distortion Maximum Output Voltage Output Noise Voltage Closed Circuit Gain Total Harmonic Distortion Maximum Output Voltage Output Noise Voltage Output Offset Voltage VAS Operation Input Voltage Effective Voltage Effective width Playback System Ripple Rejection Recording System Ripple Rejection Rec./Playback Switching Pin Rec./Playback Switching Pin VPB VREC Playback mode Recording mode 0.1 1.6 0.3 2.3 V V RRP RRR fr = 270Hz, Vr = 30mVrms, Rg= 1kΩ fr = 270Hz, Vr = 30mVrms, Rg= 2.2kΩ –70 –40 –50 –30 dBV dBV VALC WALC Vin= – 60dBV, Rg= 1.5kΩ Vin= – 30dBV, Rg= 1.5kΩ –6.6 –4.5 1.5 –2.5 3 dBV % VAS Mic. input level at Piny Voltage= 0.2V 8 14 18 µVrms GV – PO THD – PO VO – PO Vn – PO VDC Vin= 5mVrms, RL= 8Ω Vin= 5mVrms, RL= 8Ω THD = 10%, RL= 8Ω Rg= 0Ω, RL= 8Ω, DIN/AUDIO Filter Rg= 0Ω, RL= 8Ω, 300 38.5 41 0.11 350 –74 –50 0 –65 50 43.5 1 dB % mW dBV mV GV2 THDR VoR VnR Vin= – 80dBV Vin= – 80dBV THD = 5% Rg= 2.2kΩ, DIN/AUDIO Filter 0.8 69.5 72.5 1.3 1.08 –46 –42 75.5 3 dB % Vrms dBV GV1 THD1 VO1 Vni Vin= – 85dBV, Rg= 1kΩ Vin= 3mVrms, Rg= 1kΩ THD= 1%, Rg= 1kΩ Rg= 1kΩ, DIN/AUDIO Filter 0.3 65 74 0.1 0.6 1 1.8 1 dB % Vrms µVrms Symbol Itot Condition At No Input/Playback min. 10 typ. 20 max. 35 Unit mA ICs for Cassette, Cassette Deck s Characteristics Curve Pre. Amp. Input/Output Characteristics Vout, THD-Vin 10 5 3 Output Voltage Vout (Vrms) VCC=3V RL=50kΩ freq.=1kHz 100 10 AN7086S Power Amp. Input/Output Characteristics Vout, THD-Vin VCC=3V RL=80Ω freq.=1kHz 100 10 Rec. Amp. Input/Output Characteristics Vout, THD-Vin VCC=3V freq.=1kHz RL=10kΩ 100 Total Harmonic Distortion THD (%) Total Harmonic Distortion THD (%) 1 0.5 0.3 VO 0.1 0.05 0.03 THD 10 1 10 1 10 3 0.3 VO 3 0.3 Vout THD 3 1 0.1 1 0.1 1 0.3 0.03 THD 0.3 0.03 0.3 0.01 0.1 0.3 0.5 1 3 5 10 0.1 0.01 0.3 1 3 10 30 0.1 100 0.01 0.003 0.01 0.03 0.1 0.3 1 Input Voltage Vin (mVrms) Input Voltage Vin (mVrms) Input Voltage Vin (mVrms) Pre. Amp. Frequency Characteristics GV, THD – f Maximum Output Voltage VO max. (Vrms) 50 Voltage Gain GV (dB) VCC=3V RL=150kΩ Vout= –10dBV Total Harmonic Distortion THD (%) Pre. Amp. Maximum Output Voltage VO max.– VCC 1.2 1.0 0.8 0.6 0.4 0.2 0 freq.=1kHz RL=50kΩ THD=1% 40 GV 30 3 2 THD 10 30 100 300 1k 3k 10k 30k 1 0 100k 0 1 2 3 4 5 6 Frequency f (Hz) Supply Voltage VCC (V) Pre. Amp. Supply Voltage Characteristics VCC – GV, THD GV VO= –10dBV freq.=1kHz RL=50kΩ 50 Total Harmonic Distortion THD (%) Voltage Gain GV (dB) Power Amp. Frequency Characteristics GV, THD – f VCC=3V RL=8Ω VO= –10dBV VO 40 4 30 THD 3 2 1 10 30 100 300 1k 3k 10k 30k 100k 40 38 Voltage Gain GV (dB) 36 34 32 3 2 THD 1 0 30 0 1 2 3 4 5 6 Supply Voltage VCC (V) Frequency f (Hz) Total Harmonic Distortion THD (%) Total Harmonic Distortion THD (%) 30 3 Output Voltage Vout (Vrms) 30 3 Output Voltage Vout (Vrms) 30 AN7086S Power Amp. Maximum Output Power PO max.– VCC 1.2 Voltage Gain GV (dB) Maximum Output Power PO max. (W) THD=10% freq.=1kHz 1.0 R =8Ω L 0.8 0.6 0.4 0.2 0 44 42 40 38 ICs for Cassette, Cassette Deck Power Amp. Supply Voltage Characteristics GV, THD – VCC VO=10dBV freq.=1kHz RL=8Ω GV Total Harmonic Distortion THD (%) Total Harmonic Distortion THD (%) THD 5 4 3 2 1 0 4 5 6 0 1 2 3 4 5 6 0 1 2 3 Supply Voltage VCC (V) Supply Voltage VCC (V) Rec. Amp. Frequency Characteristics GV, THD – f Maximum Output VO max. (Vrms) VCC=3V VO=–5dBV RL=10kΩ Voltage Gain GV (dB) 70 Rec. Amp. Maximum Output Voltage VO max.– VCC 80 2.4 Total Harmonic Distortion THD (%) GV THD=10% freq.=1kHz 2.0 R =10kΩ L 1.6 1.2 0.8 0.4 0 60 THD 50 4 3 2 1 40 10 100 1k Frequency f (Hz) 10k 0 100k 0 1 2 3 4 5 6 Supply Voltage VCC (V) Rec. Amp. Supply Voltage Characteristics GV, THD – VCC Output Voltage Vout (dBV) 0 80 Voltage Gain GV (dB) 76 72 68 64 60 0 1 2 3 4 5 6 THD 5 4 3 2 1 0 VO=5dB freq.=1kΩ RL=10kΩ Total Harmonic Distortion THD (%) GV ALC Input/Output Characteristics Vout, THD – Vin VCC=3V freq.=1kHz –2 R =10kΩ L –4 –6 –8 THD 5 4 3 2 1 0 Vout –80 –60 –40 –20 0 Supply Voltage VCC (V) Input Voltage Vin (dBV) ICs for Cassette, Cassette Deck s Application Circuit 0.0056µF 0.0047µF 1MΩ 10kΩ 4.7µF 21 20 19 18 17 + AN7086S 0.01µF 2.2µF Mic. + + 0.1µF 24 23 33µF + 4.7µF 14kΩ Rec. 1.5kΩ PLAY 220µF VCC 220µF + 16 220µF + 15 14 Head + 22 13 AN7086S 1 40kΩ 0.033µF 4.7kΩ 0.22µF + + 2.2kΩ 0.01µF VAS OFF PAUSE + 47µF to Motor VCC Speaker 8Ω 2 + 3 0.22µF 4 + 4.7µF 5 6 + 7 2.2µF 8 + 33µF + 33µF 9 10 11 12 82Ω 33µF s Pin Descriptions Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 Pin Name 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 VCC Power Output 2-pin Pin No. 13 14 15 16 17 18 19 20 21 22 23 24 B.S.2 VCC 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 Pin Name