ICs for Audio Common Use AN7158N Dual 7.5W Audio Power Amplifier Circuit ■ Overview Unit : mm 3.6±0.2 7.7±0.25 12 11 10 9 8 7 6 5 4 3 2 1 30.0±0.3 24.0±0.3 1.26±0.25 1.8R ■ Features • Incorporating protection circuits (surge, thermal protec- 5.5±0.3 0.35 0.95±0.25 2.7±0.4 + 0.1 – 0.05 tion and etc.) • Automatic operating point stabilizer circuit • Low distortion, low 1/f noise • Low shock noise from power ON/OFF operation • Better channel separation • Fewer external components 4.7±0.3 1.0±0.5 2.54 15.0±0.3 0.7±0.1 The AN7158N is an integrated circuit designed for power amplifier of 7.5W (16V, 4Ω) output with low noise and low distortion, and it suits TV set with multi-sound. Stereo operation is enabled due to incorporating two amplifiers on one chip. 12-pin SIL package enabled compact and high-densely mounted set. 0.35±0.25 12-Lead SIP Package (HSIP012-P-0000B) ■ Block Diagram 8 Ch.2 Input Ch.1 Input 9 Shock Noise Suppression Temperature Compensation Input Circuit Drive Ch.2 Bootstrap GND 7 10 Over Voltage Protection 4 Input Circuit Drive Output Circuit 12 Shock Noise Suppression Temperature Compensation Over Voltage Protection 5 11 Ch.2 Output Output Circuit 6 3 Ch.1 Bootstrap GND 1 VCC 2 Ch.1 Output ICs for Audio Common Use AN7158N ■ Absolute Maximum Ratings (Ta= 25˚C) Symbol Rating Unit Note 1) Parameter VCC 24 V Supply Voltage Note 2) VCC 20 V Supply Current ICC 4 A Power Dissipation (Ta= 45˚C) PD 30 W Operating Ambient Temperature Topr – 30 ~ + 75 ˚C Storage Temperature Tstg – 55 ~ + 150 ˚C Supply Voltage Note 1) Note 2) Without signal VCC = 24V (For non-stabilized supply) Operation VCC= 20V (For stabilized supply) ■ Electrical Characteristics (Ta = 25˚C) • VCC=13.2V, RL= 4Ω, f =1kHz Parameter Symbol Condition min. typ. max. Unit Quiescent Circuit Current ICQ Vi = 0mV 40 70 120 mA Voltage Gain GV Vi = 3mV 52 54 56 dB Output Power PO THD = 10% 4.8 5.5 THD Vi = 3mV Output Noise Voltage Vno Rg = 10kΩ Channel Balance CB Separation Sep. Ripple Rejection Ratio RR Total Harmonic Distortion Vi = 3mV 45 f = 60Hz, Rg = 600Ω W 0.15 1 % 1 3 mV 0 1 dB 50 dB 40 dB • VCC =16V, RL= 8Ω, f =1kHz Parameter Symbol Condition min. typ. max. Unit Quiescent Circuit Current ICQ Vi = 0mV 40 80 140 mA Voltage Gain GV Vi = 4mV 52 54 56 dB 4 4.5 Output Power THD = 10% PO THD Total Harmonic Distortion 7.5 Vi = 4mV 0.1 1 % 1 3 mV Output Noise Voltage Vno Rg = 10kΩ Crosstalk CT Vi = 4mV, Rg = 10kΩ PD – Ta 40 (1) (2) Tc = Ta With a 100cm2 × 3mm Al heat sink (black) or a 200cm2 × 2mm Al heat sink (3) With a 100cm2 × 2mm Al heat sink (4) Without heat sink 36 Power Dissipation PD (W) 32 (1) 28 24 20 (2) 16 (3) 12 8 (4) 4 0 –20 0 20 40 60 80 100 120 Ambient Temperature Ta (˚C) 140 W RL = 4Ω, THD = 10% 160 180 45 W dB ICs for Audio Common Use AN7158N 120 PO 10 100 RL = 3Ω 4Ω otal 2-ch. T 8 80 ICQ 60 6 8Ω 4 40 2 20 0 0 4 8 12 16 VCC = 13.2V RL = 4Ω 30 f = 1kHz 10 3 : GV ≈ 54dB : GV ≈ 46dB (with 4, 9 Pin 82Ω) 0.3 0.1 PO 0.03 PO 0.3 1 Total Harmonic Distortion THD (%), Voltage Gain Response GV (dB) Total Harmonic Distortion THD (%), Voltage Gain Response ,GV (dB) 2.0 1.5 1.0 0.5 0 10 VCC = 13.2V RL = 4Ω PO = 0.5W : GV ≈ 54dB : GV ≈ 46dB (with 4, 9 Pin 82Ω) THD 100 1k 30 10k –2 –3 –4 –5 2.0 100k VCC = 16V RL = 8Ω PO = 0.5W : GV ≈ 54dB : GV ≈ 46dB (with 4, 9 Pin 82Ω) 1.5 1.0 0.5 THD 100 1k 10k 100k Frequency f (Hz) Vno – Rg VCC = 13.2V RL = 4Ω f =100kHz V = 13.2V 1.8 R CC= 4Ω L Output Noise Voltage Vno (mV) 30 10 5 3 1 0.5 1.6 1.4 : Commend Circuit : GV ≈ 47dB (with82Ω to Pin 4, 9) 1.2 82Ω100µF or less 1.0 0.8 0.6 0.4 0.3 0.2 1 PO 0.3 THD 0.1 0.03 0.3 10 Output Power PO (W) 100 0 10 100 1k 10k Source Resistance Rg (Ω) 1 3 10 30 100 4.0 8.0 f = 1kHz Ta = 25˚C 3.6 3.2 6.4 2.8 5.6 2.4 4.8 VCC = 13.2V RL = 4Ω 2.0 100k 4.0 1.6 3.2 1.2 2.4 13.2V, 8Ω 0.8 1.6 9V, 4Ω 0.4 0.8 9V, 8Ω 0 0 2 4 6 8 Output Power PO (W) 2.0 0.1 1 PD – PO –1 THD – PO 0.1 0.01 3 Input Voltage Vi (mV) GV 0 0 10 100 50 : GV ≈ 54dB : GV ≈ 46dB (with 4, 9 Pin 82Ω) 10 0.01 0.1 100 1 Frequency f (Hz) Total Harmonic Distortion THD (%) 10 VCC = 16V RL = 8Ω f = 1kHz GV, THD – f THD, GV – f GV 3 30 Input Voltage Vi (mV) Supply Voltage VCC (V) 3 2 1 0 –1 –2 –3 –4 –5 THD 1 0.01 0.1 0 20 THD Power Dissipation (Single Channel Operation) PD (W) Output Power PO (W) 12 Quiescent Circuit Current ICQ (mA) 140 100 10 0 Power Dissipation (Dual Operation) PD (W) Output Power PO (W), Total Harmonic Distortion THD (%) THD = 10% 14 PO, THD – Vi 100 Output Power PO (W), Total Harmonic Distortion THD (%) PO, THD – Vi PO, ICQ – VCC 16 ICs for Audio Common Use AN7158N 47µF – + – 2.2Ω 100µF + 0.1µF 5 3 1000µF 6 2 Ch.1 Input 4 1 AN7158N 30kΩ 1000pF + – 1000µF 12 Ch.2 Input + Ch.2 9 30kΩ 8 10 Ch.1 RL VCC – 100µF 11 1000pF – + Ch.1 1000µF – + 7 0.1µF Ch.2 RL + 100µF – 47µF + 100µF 100µF – + – + 1000µF VCC 7 Bootstrap Ch.2 Output Ch.1 8 N.F.B Ch.2 VCC 3 GND 9 Input Ch.2 4 Input Ch.1 10 GND 5 N.F.B Ch.1 11 Output Ch.2 6 Bootstrap Ch.1 12 Ripple Filter 47µF + – 0.1µF – + IN IN 1000pF 1000pF 30kΩ 30kΩ 12 11 10 9 8 7 6 5 4 3 2 Pin Name 2 Ω 2.2Ω Pin No. 1 2.2 – + Pin Name – + 0.1µF 47µF – + Ch.1 100µF – + 1000µF 1000µF Ch.2 Pin No. AN7158N Output – ■ Pin Descriptions ■ Printed Circuit Board Layout Output 2.2Ω