Philips Semiconductors
Product specification
2 × 8 W stereo BTL audio output amplifier
with DC volume control
TDA7057AQ
MBG675
MBG672
12
40
handbook, halfpage
handbook, halfpage
I
q
THD
(%)
(mA)
30
8
4
0
(1)
(2)
20
10
0
0
−2
−1
4
8
12
16
20
10
10
1
10
P
(W)
out
V
(V)
P
(1) RL = 16 Ω.
(2) RL = 8 Ω.
Fig.3 Quiescent current as a function of supply
voltage.
Fig.4 THD as a function of output power.
MBG676
MBG674
12
10
handbook, halfpage
handbook, halfpage
THD
(%)
8
P
o
(W)
(1)
(2)
8
6
4
4
2
(1)
(2)
−1
0
0
0
10
4
8
12
16
20
−2
2
10
1
10
10
V
(V)
f (kHz)
P
THD = 10%; f = 1 kHz.
(1) RL = 8 Ω.
(2) RL = 16 Ω.
(1) Gv = 40 dB; Po = 0.5 W.
(2) Gv = 30 dB; Po = 0.5 W.
Fig.6 Output power as a function of supply
voltage.
Fig.5 THD as a function of frequency.
1998 Apr 07
7
ETC [ ETC ]
