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