TDA7719 STMicroelectronics, TDA7719 Datasheet - Page 18

• Manufacturer Part Number: TDA7719
• Description: IC AUDIO PROCESSOR CAR 28-TSSOP
• Manufacturer: STMicroelectronics
• Type: Audio Processorr
• Series: -r

Specifications of TDA7719

• Applications: Radio
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Description
4.3.3
4.3.4
4.4
18/46
High frequency boost
Figure 7
Figure 7.
Flat mode
In flat mode the loudness stage works as a 0dB to -15dB attenuator.
SoftMute
The digitally controlled SoftMute stage allows muting/demuting the signal with a I
programmable slope. The mute process can either be activated by the SoftMute pin or by
the I
regions (see
For timing purposes the Bit0 of the I
until the end of demuting.
Figure 8.
1. A started Mute action is always terminated and could not be interrupted by a change of the mute signal.
2
C-bus. This slope is realized in a special S-shaped curve to mute slow in the critical
shows the different Loudness shapes in low and high frequency boost.
Loudness attenuation, f
SoftMute timing
Figure
8).
+SIGNAL
-SIGNAL
I
2
MUTE
C BUS
EXT.
OUT
REF
Doc ID 13698 Rev 4
1
1
2
C-bus output register is set to 1 from the start of muting
c
=2.4 kHz
D97AU634
Time
2
C-bus
TDA7719