E-TDA7462D STMicroelectronics, E-TDA7462D Datasheet - Page 8

• Manufacturer Part Number: E-TDA7462D
• Description: Audio DSPs DUAL AUDIOPROCESSOR
• Manufacturer: STMicroelectronics

Specifications of E-TDA7462D

• Operating Temperature Range: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SO-28
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TDA7462
Mute Functions
Pause Detector
Figure 1. Input Stage
8/25
Direct mute
Digitally controlled softmute with 4 program-
mable mute times
Programmable threshold
Delay time defined by external capacitor
MDGND
PDGND
MD+
CD+
PD+
SE1
SE2
SE3
CD-
100K
100K
100K
100K
100K
100K
1
1
1
15K
15K
15K
15K
28K
28K
+
+
+
-
-
-
15K
15K
15K
15K
28K
28K
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
D98AU866
IN GAIN