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1998 Feb 23 7
Philips Semiconductors Product specification
3 W mono BTL audio amplifier with DC
volume control
TDA7056AT
Fig.3 Quiescent current as a function of the
supply voltage.
V
5
= 1.4 V; no load.
handbook, halfpage
20
0
4
MGM578
8
12
16
04 2081216
I
q
(mA)
V
P
(V)
Fig.4 THD as a function of output power.
V
DC
= 1.4 V.
(1) V
P
= 12 V; R
L
=16Ω.
handbook, halfpage
12
0
MGM579
P
o
(W)
THD
(%)
10
−1
110
2
4
6
10
8
(1)
Fig.5 THD as a function of frequency.
V
P
= 12 V, P
o
= 0.5 W, V
DC
= 1.4 V.
(1) R
L
=16Ω.
handbook, halfpage
0
2
4
6
8
MGM580
10 10
2
10
3
10
4
10
5
f (Hz)
THD
(%)
(1)
Fig.6 Ripple rejection as a function of frequency.
V
P
= 12 V; R
L
=16Ω; V
r
= 200 mV.
(1) V
7
= 0.3 V; R
s
=5kΩ.
(2) V
7
= 1.4 V; R
s
=0Ω.
(3) V
7
= 1.4 V; R
s
=5kΩ.
handbook, halfpage
0
100
20
40
60
80
MGM581
10 10
2
10
3
10
4
10
5
f (Hz)
RR
(dB)
(2)
(3)
(1)