AN5270
s
Technical Information
•
Characteristic curve chart
P
D
T
a
11
10.4
10
9
4
P
max
<
T
jmax
−
T
a
R
th
2
1.7
1
ICs for Audio Common Use
Area of safe operation
10 ms single pulse,
free air
Power dissipation
P
D
(W)
8
7
6
5
4.14
4
3.36
3
2.5
2
1
0
0
20
40
60
80 100 120 140 160
3
2
1
2.15
2.63
0.5
6.65
I
C
(A)
25
°C
0.1
0.05
70
°C
1.6
0.02
0.01
1
5
10
26
50
100
Ambient temperature
T
a
(°C)
V
CE
(V)
1 No heat sink
2 5.5
×
5.0 cm
2
Al board
(t
=
1 mm)
3 7.5
×
7.5 cm
2
Al board
(t
=
1 mm)
4 Infinity heat sink
•
Structure of pre-amp. stage
Pre-amp. stage
Tone-control
Power
stage
Volume-control
G
P
(25 dB)
Output
8
G
T
Ci
G
2.8 kΩ
Point1
G
L1
47 kΩ
2.8 kΩ
Input 2
G
F
Point2
G
L2
LF input 3
G
B
5.6 kΩ
1 kΩ
33 pF
C2
V
IN
R1
C1
Fig. Simplified structure of AN5270 pre-amp. stage
Explanation of gain notations :
G
T
: Gain of tone-amp. (treble-amp.)
G
F
G
B
: Gain of flat-response amp.
: Gain of bass-amp.
G
L1
: Gain at point 1 with respect to V
IN
.
G
L2
: Gain at point 2 with respect to V
IN
.
G
P
: Gain of power stage.
G
pre
: Gain of pre-amp. stage.
4
PANASONIC [ PANASONIC SEMICONDUCTOR ]
