TDA7462 데이터 시트보기 (PDF) - STMicroelectronics
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TDA7462 Datasheet PDF : 25 Pages
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TDA7462
Mute Functions
Direct mute
Digitally controlled softmute with 4 program-
mable mute times
Pause Detector
Programmable threshold
Delay time defined by external capacitor
Figure 1. Input Stage
FUNCTIONAL DESCRIPTION
Input Stages
Most of the input stages are similar to the others
ST audioprocessors with exception of the CD in-
puts (see Figure 1). In fact there are some CD
players in the market having a significant high
source impedance which affects strongly on the
common-mode rejection (CHRR) of the normal
differential input stage. The additional buffer of
the TDA7462 CD input avoids this drawback and
CD+
CD-
PD+
PDGND
MDGND
MD+
SE1
SE2
SE3
1
100K
1
100K
1
100K
100K
100K
100K
15K
15K
-
+
15K
15K
15K
15K
-
+
15K
15K
28K
28K
+
-
28K
28K
IN GAIN
D98AU866
8/25
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