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=16Ω.
(2) RL=8Ω.
handbook, halfpage
12
THD
(%)
Pout (W)
0
8
10−210−11
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
10110−210−1f (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=8Ω.
(2) RL=16Ω.
handbook, halfpage
12
0
4
8
MBG676
0204 8 12 16
Po
(W)
VP (V)
(2)
(1)