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3.SOUND AMP IC
1) BLOCK DIAGRAM
33V
N.C
1
From
#51
of I501
From
#35
of I701
2) EXPLAINATION OF THE OPERATION
•The audio signal from the I501 goes into the #3 of the I601.
•I601 amplifies this audio signal correspond to the volume control signal from I701.
•The amplified audio signal from the #6 and #8 drives the speaker (s).
¡ AUDIO MUTE function is activated by the I701(SOFTWARE MUTE).
TDA7056A
VP
IN
S.GND Volume OUT(+) P.GND OUT(–) N.C
2
3
4
5
6
7
8
9
15
Earphone
Jack
SPEAKER
16 ohm
3W
SP01
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