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1998 Feb 23 8
Philips Semiconductors Product specification
3 W mono BTL audio amplifier with DC
volume control
TDA7056AT
Fig.7 Gain control as a function of DC volume
control.
handbook, halfpage
MGM582
40
−80
20
−20
−40
0
0 1.2 2.00.4 1.60.8
V
7
(V)
gain
(dB)
−60
Fig.8 Noise output voltage as a function of DC
volume control.
Measured with R
s
=5kΩ unweighted; f = 22 Hz to 22 kHz.
handbook, halfpage
1000
0
800
400
200
600
0 1.2 2.0
MGM583
0.4 1.60.8
V
n
(µV)
V
7
(V)
Fig.9 Input signal handling as a function of the
supply voltage.
T
amb
=25°C; THD = 1%; R
L
=16Ω; V
DC
= 0.8 V.
handbook, halfpage
1000
0
200
MGM584
400
600
800
04 2081216
V
i
(mV)
V
P
(V)
Fig.10 Output power as a function of the supply
voltage.
Measured at THD = 10%. The maximum output power is limited by
the maximum power dissipation and the maximum available output
current.
(1) R
L
=8Ω.
(2) R
L
=16Ω.
(3) R
L
=25Ω.
handbook, halfpage
5
0
1
MGM585
2
3
4
04 2081216
P
o
(W)
V
P
(V)
(1) (2) (3)