Document
ICs for Audio Common Use
AN7158N
Dual 7.5W Audio Power Amplifier Circuit
s Overview
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.
15.0±0.3 3.6±0.2 7.7±0.25 1.0±0.5 12 11 10 9 8 7 6 5 4 3 2 1 2.54 Unit : mm 4.7±0.3 2.7±0.4
1.8R 30.0±0.3 24.0±0.3 1.26±0.25
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
0.7±0.1 11 Ch.2 Output 1 VCC Ch.1 Output 2 0.35
+ 0.1 – 0.05
s Features • Incorporating protection circuits (surge, thermal protec-
0.95±0.25
5.5±0.3
0.35±0.25 12-Lead SIP Package (HSIP012-P-0000B)
s Block Diagram
Ch.2 Bootstrap 8 7 GND 10
Shock Noise Suppression
Temperature Compensation
Over Voltage Protection
Ch.2 Input
9
Input Circuit
Drive
Output Circuit
Ch.1 Input
4
Input Circuit
Drive
Output Circuit
12
Shock Noise Suppression
Temperature Compensation
Over Voltage Protection
5
6 Ch.1 Bootstrap
3 GND
AN7158N
s Absolute Maximum Ratings (Ta= 25˚C)
Parameter Supply Voltage Supply Current Power Dissipation (Ta= 45˚C) Operating Ambient Temperature Storage Temperature Note 1) Note 2)
Note 1)
ICs for Audio Common Use
Symbol VCC VCC ICC PD Topr Tstg
Rating 24 20 4 30 – 30 ~ + 75 – 55 ~ + 150
Unit V V A W ˚C ˚C
Supply Voltage Note 2)
Without signal VCC = 24V (For non-stabilized supply) Operation VCC= 20V (For stabilized supply)
s Electrical Characteristics (Ta = 25˚C) • VCC=13.2V, RL= 4Ω, f =1kHz
Parameter Quiescent Circuit Current Voltage Gain Output Power Total Harmonic Distortion Output Noise Voltage Channel Balance Separation Ripple Rejection Ratio Symbol ICQ GV PO THD Vno CB Sep. RR Vi = 0mV Vi = 3mV THD = 10% Vi = 3mV Rg = 10kΩ Vi = 3mV f = 60Hz, Rg = 600Ω 45 Condition min. 40 52 4.8 typ. 70 54 5.5 0.15 1 0 50 40 1 3 1 max. 120 56 Unit mA dB W % mV dB dB dB
• VCC =16V, RL= 8Ω, f =1kHz
Parameter Quiescent Circuit Current Voltage Gain Output Power Total Harmonic Distortion Output Noise Voltage Crosstalk Symbol ICQ GV PO THD Vno CT Vi = 0mV Vi = 4mV THD = 10% RL = 4Ω, THD = 10% Vi = 4mV Rg = 10kΩ Vi = 4mV, Rg = 10kΩ 45 Condition min. 40 52 4 typ. 80 54 4.5 7.5 0.1 1 1 3 max. 140 56 Unit mA dB W W % mV dB
PD – Ta
40 36 32 Power Dissipation PD (W) 28 24 20 (2) 16 (3) 12 8 4 0 –20 0 (4) (1) 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 (1) (2)
20
40
60
80
100
120
140
160
180
Ambient Temperature Ta (˚C)
ICs for Audio Common Use
AN7158N
PO, ICQ – VCC
Output Power PO (W), Total Harmonic Distortion THD (%) 16 THD = 10% 14 12 Output Power PO (W) PO 10 8 6 8Ω 4 2 0 40 20 0 20 RL = 3Ω 100 4Ω ICQ 60 80 140 120 100
PO, THD – Vi
VCC = 13.2V RL = 4Ω 30 f = 1kHz 10 3 1 0.3 0.1 0.03 PO 0.01 0.1 0.3 1 3 10 30 100 : GV ≈ 54dB : GV ≈ 46dB (with 4, 9 Pin 82Ω) Output Power PO (W), Total Harmonic Distortion THD (%) 100 30 10 3 1 THD THD
PO, THD – Vi
VCC = 16V RL = 8Ω f = 1kHz : GV ≈ 54dB : GV ≈ 46dB (with 4, 9 Pin 82Ω)
otal 2-ch. T
Quiescent Circuit Current ICQ (mA)
PO 0.3 THD 0.1 0.03 0.01 0.1
PO
0
4
8
12
16
0.3
1
3
10
30
100
Supply Voltage VCC (V)
Input Voltage Vi (mV)
Input Voltage Vi (mV)
THD, GV – f
Total Harmonic Distortion THD (%), Voltage Gain Response ,GV (dB) Total Harmonic Distortion THD (%), Voltage Gain Response GV (dB) 3 2 1 0 –1 –2 –3 –4 –5 1 0 –1 –2 –3 –4 –5 VCC = 13.2V RL = 4Ω PO = 0.5W
GV, THD – f
GV Power Dissipation (Single Channel Operation) PD (W) 4.0 3.6 3.2 2.8 2.4 2.0 1.6 1.2
PD – PO
8.0 Power Dissipation (Dual Operation) PD (W) f = 1kHz Ta = 25˚C 6.4 5.6 4.8 VCC = 13.2V RL = 4Ω 4.0 3.2 2.4 13.2V, 8Ω 0.8 0.4 0 0 2 9V, 4Ω 9V, 8Ω 4 6 8 10 1.6 0.8 0
GV
: GV ≈ 54dB : GV ≈ 46dB (with 4, 9 Pin 82Ω)
2.0 1.5 1.0 0.5 0 10
VCC = 16V RL = 8Ω PO = 0.5W : GV ≈ 54dB : GV ≈ 46dB (with 4, 9 Pin 82Ω)
2.0 1.5 1.0 0.5 0 10
THD 100 1k 10k 100k
THD 100 1k 10k 100k
Frequency f (Hz)
Frequency f (Hz)
Output Power PO (W)
THD – PO
100 50 Total Harmonic Distortion THD (%) 30 Output Noise Voltage Vno (mV) VCC = 13.2V RL = 4Ω f =100kHz 2.0 V = 13.2V 1.8 R CC L = 4Ω 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.1 0.01 0.1 1 10 100 0 10 100
Vno – Rg
10 5 3
: Commend Circuit : GV ≈ 47dB (with82Ω to Pin 4, 9) 82Ω100µF or less
1 0.5 0.3
1k
10k
100k
Output Power PO (W)
Source Resistance Rg (Ω)
AN7158N
ICs for Audio Common Use
47µF
+ – + –
100µF
2.2Ω 0.1µF
5 Ch.1 Input 1000pF 30kΩ 4
3 Ch.1
6 2 1 12
1000µF
+ –
AN7158N
Ch.2
+ –
1000µF
+ –
VCC
Ch.1 RL
Ch.2 Input 1000pF 30kΩ
9 8
+ –
100µF 11 7
1000µF
+ –
10
0.1µF 100µF 47µF
+ –
Ch.2 RL 2.2Ω
s Printed Circuit Board Layout
Output 1000µF Ch.2 – + 47µF – + 100µF 0.1µF – + 100µF – + Output 1000µF – + Ch.1 47.