AN7158N [PANASONIC]
Dual 7.5W Audio Power Amplifier Circuit; 双7.5W音频功率放大电路
| 型号： | AN7158N |
| 厂家： | 
PANASONIC |
| 描述： | Dual 7.5W Audio Power Amplifier Circuit |
| 文件： | 总4页 (文件大小：93K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ICs for Audio Common Use
AN7158N
Dual 7.5W Audio Power Amplifier Circuit
■ Overview
Unit : mm
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 com-
pact and high-densely mounted set.
15.0±0.3
3.6±0.2
7.7±0.25
1.0±0.5
4.7±0.3
2.7±0.4
12
11
10
9
1.8R
8
7
6
5
4
3
2
1
■ Features
•
Incorporating protection circuits (surge, thermal protec-
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
5.5±0.3
0.35±0.25
Fewer external components
12-Lead SIP Package (HSIP012-P-0000B)
■ Block Diagram
Ch.2 Bootstrap
7
GND
10
8
Shock Noise
Suppression
Temperature
Compensation
Over Voltage
Protection
Ch.2
9
Ch.2
Output
11
1
Input Circuit
Input Circuit
Drive
Drive
Output Circuit
Output Circuit
Input
VCC
Ch.1
4
Ch.1
Output
2
Input
Shock Noise
Suppression
Temperature
Compensation
Over Voltage
Protection
12
5
6
3
Ch.1 Bootstrap
GND
ICs for Audio Common Use
AN7158N
■ Absolute Maximum Ratings (Ta= 25˚C)
Parameter
Supply Voltage Note 1)
Supply Voltage Note 2)
Symbol
Rating
Unit
V
VCC
VCC
ICC
24
20
4
V
Supply Current
A
Power Dissipation (Ta= 45˚C)
Operating Ambient Temperature
Storage Temperature
PD
30
W
˚C
˚C
– 30 ~ + 75
– 55 ~ + 150
Topr
Tstg
Note 1) Without signal VCC = 24V (For non-stabilized supply)
Note 2) Operation VCC= 20V (For stabilized supply)
■ Electrical Characteristics (Ta = 25˚C)
• VCC=13.2V, RL= 4Ω, f =1kHz
Parameter
Quiescent Circuit Current
Voltage Gain
Symbol
ICQ
Condition
min.
40
typ.
70
max.
120
56
Unit
Vi = 0mV
Vi = 3mV
mA
dB
W
GV
52
54
5.5
0.15
1
Output Power
PO
THD = 10%
Vi = 3mV
4.8
Total Harmonic Distortion
Output Noise Voltage
Channel Balance
THD
Vno
1
3
1
%
Rg = 10kΩ
mV
dB
dB
dB
CB
0
Vi = 3mV
Separation
Sep.
RR
45
50
Ripple Rejection Ratio
f = 60Hz, Rg = 600Ω
40
• VCC =16V, RL= 8Ω, f =1kHz
Parameter
Symbol
ICQ
Condition
Vi = 0mV
min.
typ.
80
max.
140
56
Unit
mA
dB
W
Quiescent Circuit Current
Voltage Gain
40
52
4
GV
Vi = 4mV
54
THD = 10%
4.5
7.5
0.1
1
Output Power
PO
RL = 4Ω, THD = 10%
Vi = 4mV
W
Total Harmonic Distortion
Output Noise Voltage
Crosstalk
THD
Vno
1
3
%
Rg = 10kΩ
mV
dB
CT
Vi = 4mV, Rg = 10kΩ
45
PD – Ta
40
36
32
28
24
20
16
12
8
(1) Tc = Ta
(2) With a 100cm2 × 3mm
Al heat sink (black)
or a 200cm2 × 2mm
Al heat sink
(1)
(3) With a 100cm2 × 2mm
Al heat sink
(4) Without heat sink
(2)
(3)
(4)
4
0
–20
0
20
40
60
80
100 120 140 160
180
Ambient Temperature Ta (˚C)
ICs for Audio Common Use
AN7158N
PO, ICQ – VCC
PO, THD – Vi
PO, THD – Vi
16
100
30
100
30
VCC = 13.2V
L = 4Ω
f = 1kHz
VCC = 16V
L = 8Ω
f = 1kHz
THD = 10%
THD
R
R
140
14
12
10
8
: GV ≈ 54dB
: GV ≈ 54dB
: GV ≈ 46dB
(with 4, 9 Pin 82Ω)
THD
120
100
80
60
40
20
0
10
10
: GV ≈ 46dB
(with 4, 9
Pin 82Ω)
PO
3
3
RL = 3Ω
4Ω
1
1
ICQ
PO
0.3
0.1
0.03
0.01
0.3
0.1
0.03
0.01
6
THD
8Ω
4
PO
2
PO
0
0
4
8
12
16
20
0.1 0.3
1
3
10 30
100
0.1
0.3
1
3
10
30 100
Supply Voltage VCC (V)
Input Voltage Vi (mV)
Input Voltage Vi (mV)
THD, GV – f
GV, THD – f
PD – PO
3
2
1
0
1
4.0
8.0
VCC = 13.2V
L = 4Ω
PO = 0.5W
GV
f = 1kHz
Ta = 25˚C
0
– 1
– 2
– 3
– 4
– 5
R
3.6
3.2
2.8
2.4
2.0
1.6
1.2
0.8
0.4
0
GV
6.4
5.6
4.8
4.0
3.2
2.4
1.6
0.8
0
– 1
– 2
– 3
– 4
– 5
VCC = 16V
R
L = 8Ω
PO = 0.5W
: GV ≈ 54dB
VCC = 13.2V
RL = 4
Ω
: GV ≈ 54dB
: GV ≈ 46dB
: GV ≈ 46dB
(with 4, 9
Pin 82Ω)
(with 4, 9 Pin 82Ω)
2.0
1.5
1.0
0.5
0
2.0
1.5
1.0
0.5
0
13.2V, 8Ω
9V, 4Ω
9V, 8Ω
THD
THD
10
100
1k
10k
100k
10
100
1k
10k
100k
0
2
4
6
8
10
Frequency f (Hz)
Frequency f (Hz)
Output Power PO (W)
THD – PO
Vno – Rg
100
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
VCC = 13.2V
L = 4Ω
f =100kHz
VCC = 13.2V
R
50
30
R
L = 4Ω
: Commend Circuit
: GV ≈ 47dB (with82Ω to
Pin 4, 9)
10
5
3
82Ω100µF or less
1
0.5
0.3
0.1
0.01
0.1
1
10
100
10
100
1k
10k
100k
Output Power PO (W)
Source Resistance Rg (Ω)
ICs for Audio Common Use
AN7158N
47µF
–
+
–
2.2Ω
100µF
+
0.1µF
1000µF
5
3
6
2
1
–
+
Ch.1
4
9
Ch.1
Input
Ch.1
RL
VCC
+
–
AN7158N
1000µF
30kΩ
30kΩ
1000pF
12
11
–
+
Ch.2
10
Ch.2
Input
100µF
1000µF
–
+
8
7
1000pF
0.1µF
Ch.2
RL
+
–
100µF
2.2Ω
47µF
–
+
■ Pin Descriptions
■ Printed Circuit Board Layout
Pin No.
Pin Name
Pin No.
Pin Name
AN7158N
Output
Output
1
2
3
4
5
6
VCC
7
8
9
Bootstrap Ch.2
N.F.B Ch.2
Input Ch.2
–
+
–
+
–
+
Ch.2
Ch.1
Output Ch.1
GND
47µF
VCC
47µF
–
+
Input Ch.1
N.F.B Ch.1
Bootstrap Ch.1
10 GND
2.2Ω
+
–
0.1µF
11 Output Ch.2
12 Ripple Filter
–
+
–
+
IN
1000pF
30kΩ
12 11 10 8 7 6 5 4 3 2
IN
1000pF
100µF
30kΩ
9
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