Philips Semiconductors
Product specification
2 × 8 W stereo BTL audio output amplifier
with DC volume control
TDA7057AQ
MBG667
MBG677
80
15
handbook, halfpage
handbook, halfpage
G
v
(1)
(dB)
40
P
d
(W)
10
0
−40
−80
(2)
5
−120
0
0
0
0.4
0.8
1.2
1.6
V
2.0
(V)
4
8
12
16
20
V
(V)
P
VC
(1) RL = 8 Ω.
(2) RL = 16 Ω.
Fig.7 Total worst case power dissipation as a
function of supply voltage.
Fig.8 Voltage gain as a function of volume control
voltage.
MBG678
MBG663
1
0
handbook, halfpage
handbook, halfpage
SVRR
(dB)
V
no
(mV)
−20
(1)
−1
10
−40
−60
(2)
−2
−80
10
10
−2
−1
2
0
0.4
0.8
1.2
1.6
V
2.0
(V)
10
1
10
10
f (kHz)
VC
f = 22 Hz to 22 kHz.
(1) VDC = 1.4 V; Vripple = 0.2 V.
(2) VDC = 0.4 V; Vripple = 0.2 V.
Fig.9 Noise voltage as a function of volume
control voltage.
Fig.10 SVRR as a function of frequency.
1998 Apr 07
8
ETC [ ETC ]
