AN7147N [PANASONIC]
Dual 5.3W Audio Power Amplifier Circuit; 双5.3W音频功率放大电路
| 型号： | AN7147N |
| 厂家： | 
PANASONIC |
| 描述： | Dual 5.3W Audio Power Amplifier Circuit |
| 文件： | 总4页 (文件大小：57K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ICs for Audio Common Use
AN7147N
Dual 5.3W Audio Power Amplifier Circuit
■ Overview
Unit : mm
The AN7147N is an integrated circuit designed for
power amplifier of 5.3W (12.0V, 3Ω) output. Stereo oper-
ation 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 suit-
ably 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.
5.9±0.25 7.7±0.3 7.8±0.25
ø 3.6
12
■ Features
1
•
•
•
•
•
•
•
Low quiescent current
High operation stability
Low radiation
Low distortion
Low noise
12-Lead SIP Package with Fin (HSIP012-P-0000A)
Low shock noise from power ON/OFF operation
Fewer external componetns
■ Pin Descriptions
Pin No.
Pin Name
N.F.B Ch.1
Pin No.
Pin Name
Output Ch.2
1
2
3
4
5
6
7
8
9
Input Ch.1
Ripple Filter
GND (Input)
Input Ch.2
N.F.B Ch.2
Bootstrap Ch.2
GND (Output)
10 VCC
11 Bootstrap Ch.1
12 Output Ch.1
■ Block Diagram
1
11
Input
Circuit
Driver
Circuit
Output
Circuit
2
3
5
12
Over Current
Over Temperature
Protection
10 VCC
Input
Circuit
Driver
Circuit
Output
Circuit
7
6
4
9
8
GND (Input)
GND (Output)
ICs for Audio Common Use
AN7147N
■ Absolute Maximum Ratings (Ta= 25˚C)
Parameter
Symbol
Rating
Unit
V
Supply Voltage
Supply Current
Power Dissipation
VCC
ICC
24
4
A
*
PD
41.7
W
˚C
˚C
– 30 ~ + 75
– 55 ~ + 150
Operating Ambient Temperature
Storage Temperature
Rθj – c = 3˚C/W
Topr
Tstg
*
■ Electrical Characteristics (VCC = 12V, RC = 3Ω, f = 1kHz, Ta = 25˚C)
Parameter
Quiescent Circuit Current
Voltage Gain
Symbol
ICQ
Condition
min.
42.5
typ.
13
max.
19
Unit
Vi = 0mV
PO = 1.0W
mA
dB
GV
44.5
0.2
0.4
0.3
5.3
4.3
2.9
46.5
0.75
PO = 1.0W, f= 1kHz
Total Harmonic Distortion
THD
PO = 1.0W, f= 100Hz
PO = 1.0W, f= 10kHz
THD= 10%, RL = 3Ω
THD= 10%, RL = 4Ω
THD= 10%, VCC = 9V, RL = 3Ω
%
4.7
Maximum Output Power
Output Noise Voltage
PO
W
Rg = 10kΩ, f= 15Hz ~ 30kHz,
12dB/OCT
0.25
Vno
mV
0.40
0
0.5
1
Rg = 10kΩ, Without Filter
PO = 0.5W
Channel Balance
CB
CS
dB
dB
Channel Separation
Ripple Rejection Ratio
Output Offset Voltage
40
45
50
50
0
PO = 0.5W
RR
dB
PO = 0.5W
VO (offset)
mV
200
Vi = 0
Note) Operating Supply Voltage Range : 5V to 22V
PD – Ta
50
(1) Tc= Ta (θj – c = 3˚C/W)
(2) With a 100cm2 × 3mm Al
heat sink (black color coated)
or a 200cm2 × 2mm Al heat
sink (not lacquered)
40
30
20
10
0
(1)
(3) With a 100cm2 × 2mm Al
heat sink (not lacquered)
(4) Without heat sink
(2)
(3)
(4)
0
40
80
120
160
Ambient Temperature Ta (˚C)
ICs for Audio Common Use
AN7147N
PO – VCC
PO, THD – Vi
THD, GV – f
46
45
44
43
42
24
100
30
VCC = 12V
L = 3Ω
f = 1kHz
THD = 10%
R
GV
20
10
RL = 4Ω
16
12
8
THD
3
f = 10kHz
f = 100Hz
1
VCC = 12V
L = 3Ω
PO = 1.0W
f = 1kHz
2.0
1.5
1.0
0.5
0
R
0.3
0.1
0.03
0.01
4
PO
THD
f = 1kHz
10
0
0.1 0.3
1
3
30
100
10
100
1k
10k
100k
0
4
8
12
16
20
24
Supply Voltage VCC (V)
Input Voltage Vi (mV)
Frequency f (Hz)
GV, ICQ, THD – VCC
ICC – VCC
THD – PO
46
45
44
43
1000
800
600
400
200
0
10
3
VCC = 12.0V
R
L = 3Ω
Rg = 600Ω
GV
f = 1kHz
RL = 3Ω
1
100Hz
10kHz
1.0
0.3
0.1
0.03
0.01
f = 1kHz
Rg = 600Ω
THD = 10%
20
15
10
5
0.8
0.6
0.4
0.2
1kHz
ICQ
THD
20
0
0.1
0.3 0.5
1
3
5
10
0
4
8
12
16
24
4
8
12
16
20
24
Supply Voltage VCC (V)
Supply Voltage VCC (V)
Output Power PO (W)
Vno – Rg
PO – f
PC – PO
8
6
4
2
0
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
4.0
3.0
2.0
1.0
0
RL = 3Ω
f = 1kHz
Single channel operation
VCC = 12V
L = 3Ω
VCC = 12V
RL = 3Ω
R
THD = 10%
THD = 5%
FLAT
DIN AUDIO
1k 10k
Source Resistance Rg (Ω)
10
100
1k
10k
10
100
100k
0.1
0.3 0.5
1
3
5
10
Frequency f (Hz)
Output Power PO (W)
ICs for Audio Common Use
AN7147N
■ Application Circuit
VCC
+
–
1000µF
100µF
–
+
3
10
0.1µF
1
11
+
–
2.2Ω
+
–
100µF
47µF
1000µF
Ch.1
Input
2
5
12
7
+
+
–
–
AN7147N
Ch.2
Input
1000µF
47µF
–
+
6
8
0.1µF
2.2Ω
+
–
100µF
4
9
■ Printed Circuit Board Layout
Scale : 1/1
AN7147N
Output2
Output1
–
1000µF
+
–
+
Input2
GND
1000µF
0.1µF
+
–
100µF
–
+
VCC
–
+
100µF
+
–
100µF
+
–
– +
47µF
1000µF
47µF
Input1
1
12
GND
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