TDA7297SA Datasheet, PDF(4/11 Page) STMicroelectronics

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TDA7297SA Datasheet, PDF (4/11 Pages) STMicroelectronics – 10W+10W DUAL BRIDGE AMPLIFIER

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TDA7297SA

Figure 2. Microprocessor Driving Signals

+VS(V)

VIN

(mV)

VST-BY

pin 7

1.8

1.3

0.8

VMUTE

pin 6

4.1

2.9

2.3

(mA)

VOUT

(V)

OFF

ST-BY

MUTE

PLAY

MUTE

ST-BY

OFF

D96AU259/mod

B) Low Cost Application

In low cost applications where the ÂµP is not present, the suggested circuit is shown in fig.3.

The St-by and mute terminals are tied together and they are connected to the supply line via an external voltage

divider.

The device is switched-on/off from the supply line and the external capacitor C4 is intended to delay the St-by

and mute threshold exceeding, avoiding "Popping" problems.

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