AN7149N [PANASONIC]
Dual 5.3W Audio Power Amplifier Circuit; 双5.3W音频功率放大电路
| 型号： | AN7149N |
| 厂家： | 
PANASONIC |
| 描述： | Dual 5.3W Audio Power Amplifier Circuit |
| 文件： | 总3页 (文件大小：48K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ICs for Audio Common Use
AN7149N
Dual 5.3W Audio Power Amplifier Circuit
■ Overview
Unit : mm
The AN7149N 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 few, 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-densely mounted
set.
5.9±0.25 7.7±0.3 7.8±0.25
ø 3.6
12
1
■ Features
•
•
•
•
•
•
•
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 components
■ 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
Input
11
Driver
Circuit
Output
Circuit
2
3
5
12
Circuit
Over Current
Over Temperature
Protection
10 VCC
Input
Driver
Circuit
Output
Circuit
7
Circuit
6
4
9
8
GND (Input)
GND (Output)
ICs for Audio Common Use
AN7149N
■ Absolute Maximum Ratings (Ta= 25˚C)
Parameter
Symbol
Rating
Unit
V
Supply Voltage
Supply Current
VCC
ICC
24
4
A
Power Dissipation
PD
41.7
W
˚C
˚C
– 30 ~ + 75
– 55 ~ + 150
Operating Ambient Temperature
Storage Temperature
Topr
Tstg
■ Electrical Characteristics (VCC = 12V, RC = 3Ω, f = 1kHz, Ta = 25˚C)
Parameter
Quiescent Circuit Current
Voltage Gain
Symbol
ICQ
Condition
min.
47.5
4.7
typ.
13
max.
19
Unit
mA
dB
%
Vi = 0mV
PO = 1.0W
GV
49.5
0.2
5.3
4.3
51.5
0.5
Total Harmonic Distortion
THD
PO = 1.0W, f= 1kHz
THD= 10%, RL = 3Ω
THD= 10%, RL = 4Ω
W
PO
Maximum Output Power
Output Noise Voltage
THD= 10%, VCC = 9V,
2.9
0.5
RL = 3Ω
Rg = 10kΩ, f= 15Hz ~ 30kHz,
12dB/OCT
Vno
mV
1.0
1.0
dB
dB
Channel Balance
PO = 0.5W
PO = 0.5W
CB
RR
0
Ripple Rejection Ratio
40
45
PD – Ta
50
(1) Tc = Ta (θ
= 3˚C/W)
j– c
(2) With a 100cm2 × 3mm Al
heat sink (black color coated)
or a 200cm2 × 2mm Al heat
sink (not lacquered)
40
(1)
(3) With a 100cm2 × 2mm Al
heat sink (not lacquered)
(4) Without heat sink
30
20
(2)
10
(3)
(4)
0
0
40
80
120
160
Ambient Temperature Ta (˚C)
ICs for Audio Common Use
AN7149N
GV, THD – f
PO, THD – Vin
PO – VCC
50
49
48
47
46
45
44
16
THD = 10%
f = 1kHz
VCC = 12V
L = 3Ω
R
14
GV
RL = 2Ω
10
12
10
1
RL = 3Ω
VCC = 12V
L = 3Ω
in = 3mV
R
V
10
RL = 4Ω
f = 10kHz
f = 1kHz
THD
1
f = 100Hz
1.0
0.8
0.6
0.4
0.2
8
RL = 6Ω
6
0.1
0.1
0.01
4
2
0
PO
f = 1kHz
THD
1k
10
100
10k
100k
0.1
1
10
100
0
4
8
12
16
20
Frequency f (Hz)
Input Voltage Vin (mV)
Supply Voltage VCC (V)
Vno – Rg
VCC = 12V
L = 3Ω
■ Application Circuit
R
VCC
–
+
–
1000µF
1000µF
+
3
10
0.1µF
1.0
0.8
0.6
0.4
0.2
0
1
11
+
–
+
2.2Ω
1000µF
100µF
–
FLAT
47µF
12
2
–
+
Input Ch.1
AN7149N
–
+
DIN/AUDIO
10k
5
7
8
Input Ch.2
1000µF
0.1µF
47µF
–
+
6
+
10
100
1k
100k
100µF
4
9
–
Input Resistance Rg (Ω)
2.2Ω
Printed Circuit Board Layout
AN7149N
Output2
Output1
–
1000µF
+
–
+
Input2
GND
1000µF
0.1µF
+
–
100µF
–
+
VCC
–
+
100µF
+
–
100µF
+
–
– +
47µF
1000µF
47µF
Input1
1
12
GND
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