tda7053at-n2 NXP Semiconductors, tda7053at-n2 Datasheet - Page 9

• Manufacturer Part Number: tda7053at-n2
• Description: Stereo Btl Audio Output Amplifier With Dc Volume Control
• Manufacturer: NXP Semiconductors

Philips Semiconductors
APPLICATION INFORMATION
The application diagram is illustrated in Fig.13.
Test conditions
T
V
The quiescent current has been measured without load
impedance.
The output power as a function of the supply voltage has
been measured at THD = 10%. The maximum output
power is limited by the maximum power dissipation and the
maximum available output current.
1997 Jul 15
handbook, halfpage
amb
DC
Stereo BTL audio output amplifier with DC
volume control
THD = 1 %.
= 1.4 V; f
V in
(V)
= 25 C unless otherwise specified; V
2.0
1.6
1.2
0.8
0.4
0
0
i
Fig.11 Input signal handling.
= 1 kHz; R
4
8
L
= 8 .
12
16
V P (V)
P
MBG665
= 6 V;
20
9
The maximum input signal voltage is measured at
THD = 1% at the output with a voltage gain of 0 dB.
To avoid instabilities and too high distortion, the input
ground and power ground must be separated as far as
possible and connected as close as possible to the IC.
The DC volume control can be applied in several ways.
Two possible circuits are shown below the main
application diagram. The circuits at the control pin will
influence the switch-on and switch-off behaviour and the
maximum voltage gain.
For single-end applications the output peak current must
not exceed 100 mA. At higher output currents the
short-circuit protection (MCL) will be active.
handbook, halfpage
Fig.12 Volume control current as a function of
( A)
I VC
30
20
10
10
20
30
0
0
volume control voltage.
0.4
0.8
1.2
Product specification
TDA7053A
1.6
V VC (V)
MBG666
2.0