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.

V5=1.4 V; no load.
handbook, halfpage
20
0
4
MGM578
8
12
16
04 2081216
I
q
(mA)
VP (V)

Fig.4 THD as a function of output power.

VDC= 1.4 V.
(1) VP=12 V; RL=16Ω.
handbook, halfpage
12
0
MGM579
Po (W)
THD
(%)
10−1110
2
4
6
10
8
(1)

Fig.5 THD as a function of frequency.

VP=12 V, Po=0.5 W, VDC= 1.4 V.
(1) RL=16Ω.
handbook, halfpage
0
2
4
6
8
MGM580
10 102103104105
f (Hz)
THD
(%)
(1)

Fig.6 Ripple rejection as a function of frequency.

VP=12 V; RL=16Ω; Vr=200 mV.
(1) V7=0.3 V; Rs=5kΩ.
(2) V7=1.4 V; Rs=0Ω.
(3) V7=1.4 V; Rs=5kΩ.
handbook, halfpage
0
100
20
40
60
80
MGM581
10 102103104105
f (Hz)
RR
(dB)
(2)
(3)
(1)