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| ICs for Audio Common Use AN7147N Dual 5.3W Audio Power Amplifier Circuit s Overview The AN7147N is an integrated circuit designed for power amplifier of 5.3W (12.0V, 3) output. Stereo operation is enabled due to incorporating two amps. on one chip. It makes high reliability by smaller quiescent current compared with power amp. current and protectors built in. As quiescent circuit current is very small, it is most suitably used for battery operated set such as radio cassette recorder. Furthermore, low distortion and low noise are realized and external components are very few. 12-pin SIL package enabled compact and high integrated set. 5.90.25 7.70.3 7.80.25 o 3.6 12 Unit : mm 29.960.3 28.00.3 20.00.2 0.60.1 R1.8 0.6 s Features * Low quiescent current * High operation stability * Low radiation * Low distortion * Low noise * Low shock noise from power ON/OFF operation * Fewer external componetns s Pin Descriptions Pin No. 1 2 3 4 5 6 Pin Name N.F.B Ch.1 Input Ch.1 Ripple Filter GND (Input) Input Ch.2 N.F.B Ch.2 1 + 0.1 0.35 - 0.05 2.54 12-Lead SIP Package with Fin (HSIP012-P-0000A) 1.20.1 Pin No. 7 8 9 10 11 12 Pin Name Output Ch.2 Bootstrap Ch.2 GND (Output) VCC Bootstrap Ch.1 Output Ch.1 s Block Diagram 1 Input Circuit Driver Circuit 11 Output Circuit Over Current Over Temperature Protection Input Circuit 6 4 GND (Input) Driver Circuit 9 GND (Output) Output Circuit 8 2 12 3 10 VCC 5 7 3.50.3 29.60.3 AN7147N s Absolute Maximum Ratings (Ta= 25C) Parameter Supply Voltage Supply Current Power Dissipation * Operating Ambient Temperature Storage Temperature * Rj - c = 3C/W Symbol VCC ICC PD Topr Tstg ICs for Audio Common Use Rating 24 4 41.7 - 30 ~ + 75 - 55 ~ + 150 Unit V A W C C s Electrical Characteristics (VCC = 12V, RC = 3, f = 1kHz, Ta = 25C) Parameter Quiescent Circuit Current Voltage Gain Total Harmonic Distortion Symbol ICQ GV THD Vi = 0mV PO = 1.0W PO = 1.0W, f = 1kHz PO = 1.0W, f = 100Hz PO = 1.0W, f = 10kHz THD = 10%, RL = 3 Maximum Output Power PO THD = 10%, RL = 4 THD = 10%, VCC = 9V, RL = 3 Output Noise Voltage Channel Balance Channel Separation Ripple Rejection Ratio Output Offset Voltage Note) Vno CB CS RR VO (offset) Rg = 10k, f = 15Hz ~ 30kHz, 12dB/OCT Rg = 10k, Without Filter PO = 0.5W PO = 0.5W PO = 0.5W Vi = 0 40 45 4.7 42.5 Condition min. typ. 13 44.5 0.2 0.4 0.3 5.3 4.3 2.9 0.25 0.40 0 50 50 0 200 0.5 1 dB dB dB mV mV W max. 19 46.5 0.75 % Unit mA dB Operating Supply Voltage Range : 5V to 22V PD - Ta 50 (1) Tc= Ta (j - c = 3C/W) (2) With a 100cm2 x 3mm Al heat sink (black color coated) or a 200cm2 x 2mm Al heat sink (not lacquered) (3) With a 100cm2 x 2mm Al heat sink (not lacquered) (4) Without heat sink 40 Power Dissipation PD (W) (1) 30 20 (2) 10 (3) (4) 0 0 40 80 120 160 Ambient Temperature Ta (C) ICs for Audio Common Use AN7147N PO - VCC Output Power PO (W), Total Harmonic Distortion THD (%) 24 THD = 10% 20 100 30 10 3 1 0.3 0.1 0.03 0.01 0.1 f = 100Hz PO, THD - Vi VCC = 12V RL = 3 f = 1kHz Total Harmonic Distortion THD (%) Voltage Gain GV (dB) 46 45 THD, GV - f GV 44 43 42 Output Power PO (W) 16 RL = 4 THD f = 10kHz 12 RL =3 Hz 8 R = L 8 f = 1kHz 100 z 2.0 1.5 1.0 0.5 0 10 100 VCC = 12V RL = 3 PO = 1.0W f= 4 PO f = 1kHz 0.3 1 3 10 30 100 f= 10H THD 1k 10k 100k 0 0 4 8 12 16 20 24 Supply Voltage VCC (V) Input Voltage Vi (mV) Frequency f (Hz) GV, ICQ, THD - VCC Quiescent Circuit Current ICQ (mA) Voltage Gain GV (dB) 46 45 2 ICC - VCC 1000 10 VCC = 12.0V RL = 3 Rg = 600 THD - PO GV 44 Supply Current ICC (mA) 43 f = 1kHz RL = 3 Total Harmonic Distortion THD (%) 800 Total Harmonic Distortion THD (%) RL = =3 RL RL = 4 3 1 100Hz 0.3 10kHz 1kHz 0.1 600 1.0 20 15 10 THD 5 0 0 4 8 12 16 20 0.2 24 ICQ 0.8 0.6 0.4 400 f = 1kHz Rg = 600 THD = 10% 200 0.03 0 4 8 12 16 20 24 0.01 0.1 0.3 0.5 1 3 5 10 Supply Voltage VCC (V) Supply Voltage VCC (V) Output Power PO (W) PC - PO 4.0 8 RL = 3 f = 1kHz Single channel operation 6 Output Power PO (W) PO - f 2.0 VCC = 12V RL = 3 THD = 10% 1.8 1.6 Output Noise Voltage Vno (W) 1.4 1.2 1.0 0.8 0.6 0.4 0.2 Vno - Rg VCC = 12V RL = 3 Power Consumption PC (W) 3.0 VC C = V 12 THD = 5% 2.0 V CC 4 V =9 1.0 2 FLAT DIN AUDIO 1k 10k 0 0.1 0.3 0.5 1 3 5 10 0 10 100 1k 10k 0 10 100 100k Output Power PO (W) Frequency f (Hz) Source Resistance Rg () AN7147N s Application Circuit ICs for Audio Common Use VCC - + 3 1 100F Ch.1 Input + - 47F 2 12 + - - + 100F - 10 11 + - 1000F 2.2 1000F 0.1F AN7147N Ch.2 Input + 5 7 47F - + 6 100F + - 4 9 2.2 8 0.1F 1000F s Printed Circuit Board Layout Scale : 1/1 AN7147N Output2 - + Input2 1000F - + 1000F Output1 0.1 0.1F GND - + Input1 1 + - 100F - + 100F F 100F 2.2 2.2 +- 47F 12 + - 1000F VCC -+ 47F GND |
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