ICs for Audio Common Use
AN7170
P
D
– Ta
40
(1) Tc = Ta (θ
j – c
= 4˚C/W)
(2) With a 100cm
2
×
3mm Al
heat sink (black color coated)
or a 200cm
2
×
2mm Al heat
sink (not lacquered)
(3) With a 100cm
2
×
2mm Al
(1)
heat sink (not lacquered)
24
P
O
– V
CC
100
5%
1%
Output Power P
O
(W)
16
10
%
P
O
, P
D
, THD – V
i
Output Power P
O
(W), Power Dissipation P
D
(W),
Total Harmonic Distortion THD (%)
V
CC
= 24V, R
L
= 4Ω
f = 1kHz, G
V
= 53dB
P
O
10
3
1
0.3
0.1
THD
P
D
R
L
= 4Ω
R
L
= 8Ω
20
THD = 10%
30
32
Power Dissipation P
D
(W)
12
16
(2)
1%
8
8
(3)
4
5%
24
0.03
0.01
0.1
0
0
40
80
120
160
200
0
0
12
16
20
24
28
32
0.3
1
3
10
30
100
Ambient Temperature Ta (˚C)
Supply Voltage V
CC
(V)
Input Voltage V
i
(mV)
P
O
, P
D
, THD – V
i
Output Power P
O
(W), Power Dissipation P
D
(W)
V
CC
= 24V, R
L
= 8Ω
f = 1kHz
G
V
= 53dB
G
V
= 46dB
Total Harmonic Distortion THD (%), Voltage Gain G
V
(dB)
100
30
10
3
1
0.3
0.1
THD
0.1
0.3
1
3
10
30
THD
P
D
P
O
P
O
100
30
Total Harmonic Distortion THD (%)
10
3
1
0.3
0.1
4
2
G
V
, THD – f
G
V
= 53dB
G
V
= 46dB
V
CC
= 24V
R
L
= 8Ω
P
O
= 2W
Voltage Gain G
V
(dB)
G
V
, THD – f
V
CC
= 24V
R
L
= 4Ω
P
O
= 4W
G
V
= 53dB
0
–2
–4
–6
2.0
1.5
1.0
G
V
Total Harmonic Distortion THD (%)
0
G
V
–2
–4
1.5
1.0
0.5
0
10
100
THD
1k
10k
100k
10
100
0.03
0.01
0.03
0.01
100
0.5
THD
1k
10k
0
100k
Input Voltage V
i
(mV)
Frequency f (Hz)
Frequency f (Hz)
P
D
– P
O
16
f = 1kHz
14
12
V
CC
= 30V
10
8
6
4
2
0
28V
24V
30V
28V
24V 22V
16V
16V
0
4
22V
8
12
16
20
24
28
32
R
L
= 4Ω
R
L
= 8Ω
Power Dissipation P
D
(W)
Output Voltage P
O
(W)
PANASONIC [ PANASONIC SEMICONDUCTOR ]
