ICs for Audio Common Use
AN5278
s
Electrical Characteristics at V
CC
=
18 V, R
L
=
8
Ω,
f
=
1 kHz, Vol.
=
5.0 V, Tone
=
2.5 V, T
a
=
25
°C
Parameter
Quiescent current
Voltage gain
Total harmonic distortion
Max. output power
Max. output attenuation
Symbol
I
CQ
G
V
THD
P
Omax
Att
max
Conditions
No input signal
Measure V
CC
current
V
O
=
1 V[rms]
G
V
=
20 log (V
O
/V
IN
)
V
O
=
1 V[rms]
BPF : 400 Hz to 30 kHz
THD
=
10 %, P
O
=
V
O2
/R
L
V
O
=
1 V[rms]
Vol.
=
max.
→
min.
Att
max
=
20 log
[V
O
(Vol.
=
min.) / V
O
(Vol.
=
max.)]
Min
20
27
4.3
−66
Typ
27
30
0.4
4.8
−69
Max
48
33
1.0
Unit
mA
dB
%
W
dB
Tone variable range 1
∆GTC1
f
=
15 kHz, V
O
=
1 V[rms]
∆GTC =
20 log
[V
O
(Tone
=
5.0 V) / V
O
(Tone
=
2.5 V)]
∆GTC2
f
=
15 kHz, V
O
=
1 V[rms]
∆GTC =
20 log
[V
O
(Tone
=
0 V) / V
O
(Tone
=
2.5 V)]
7
9
dB
Tone variable range 2
−11
−9
dB
•
Design reference data
Note) The characteristic values below are theoretical values for designing and not guaranteed.
Parameter
Input dynamic range
Output DC bias
Max. output power 1
Max. output power 2
Symbol
DR
IN
V
ODC
P
Omax1
P
Omax2
Conditions
V
VOL
=
1 V
vary V
IN
until output THD
=
1 %
No input signal
Measure Pin8 DC
THD
=
10 %, V
CC
=
18.4 V
P
O
=
V
O2
/R
L
THD
=
10 %, V
CC
=
26 V
P
O
=
V
O2
/R
L
Min
Typ
4.5
Max
Unit
V[rms]
7.9
8.3
5
9
8.7
V
W
W
3
PANASONIC [ PANASONIC SEMICONDUCTOR ]
