1997 Jul 15
7
Philips Semiconductors
Product specification
Stereo BTL audio output amplifier with DC
volume control
TDA7053A
Fig.3
Quiescent current as a function of supply
voltage.
handbook, halfpage
0
4
20
VP (V)
40
30
10
0
20
MBG672
8
12
16
Iq
(mA)
Fig.4 THD as a function of output power.
(1) V
P
= 4.5 V.
(2) V
P
= 6 V; R
L
= 8
Ω
.
(3) V
P
= 12 V; R
L
= 25
Ω
.
handbook, halfpage
12
THD
(%)
Pout (W)
0
8
10
−
2
10
−
1
1
MBG671
10
4
(1)
(2)
(3)
Fig.5 THD as a function of frequency.
(1) G
v
= 30 dB; P
o
= 0.1 W.
(2) G
v
= 40 dB; P
o
= 0.1 W.
handbook, halfpage
10
2
MBG669
10
1
10
−
2
10
−
1
f (kHz)
THD
(%)
10
0
4
6
8
2
(2)
(1)
Fig.6
Output power as a function of supply
voltage.
(1) R
L
= 8
Ω
.
(2) R
L
= 16
Ω
.
(3) R
L
= 25
Ω
.
handbook, halfpage
0
VP (V)
Pout
(W)
2.5
0
0.5
MBG670
1.0
1.5
2.0
4
8
12
16
(1)
(2)
(3)
