MUTING / STAND- BY

The muting function allows to inhibit the output

signal through an external control signal.

It can be used in many cases, when a temporary

inhibition of the output signal is requested, for ex-

ample:

– in switch-on condition, to avoid preamplifier

power-on transients

– during switching at the input stages

– during the receiver tuning.

The stand-by function is very useful and permits a

complete turn ON/OFF of the device through a

low power signal, which can be provided by a

µP.

Figure 18: Quiescent Current (St-By) vs. Supply

Voltage

TDA7245

8/11