1998 Apr 07 7

Philips Semiconductors Product specification
2× 8 W stereo BTL audio output amplifier

with DC volume control TDA7057AQ

Fig.3 Quiescent current as a function of supply

voltage.
handbook, halfpage
04 20
V
P
(V)
40
30
10
0
20
MBG672
81216
I
q
(mA)

Fig.4 THD as a function of output power.

(1) RL=16.
(2) RL=8.
handbook, halfpage
12
THD
(%)
Pout (W)
0
8
1021011
MBG675
10
4
(1) (2)

Fig.5 THD as a function of frequency.

(1) Gv= 40 dB; Po= 0.5 W.
(2) Gv= 30 dB; Po= 0.5 W.
handbook, halfpage
102
MBG674
101102101f (kHz)
THD
(%)
10
0
4
8
6
2
(2)
(1)

Fig.6 Output power as a function of supply

voltage.
THD = 10%; f = 1 kHz.
(1) RL=8.
(2) RL=16.
handbook, halfpage
12
0
4
8
MBG676
0204 8 12 16
Po
(W)
VP (V)
(2)
(1)