TDA7719 Datasheet, PDF (16/45 Pages) STMicroelectronics – 3 band car audio processor

Description
TDA7719
Note:
Since the input stage of this device has different configurations, the corresponding sources
for mixing selector are also different according to the configurations. The following table
defines the available sources for mixing under different configurations.
Table 8. Available sources for mixing
Mix selector bits ⁰⁰⁰
001
010
011
100
101
110
111
(Byte2 Bit2~Bit0) _{MixIN0 MixIN1 MixIN2 MixIN3 MixIN4 MixIN5 MixIN6 MixIN7}
CFG0
NA
NA
NA
NA
NA
NA
Beep Mute
CFG1
SE1
SE2
SE3
NA
NA
NA
Beep Mute
CFG2
SE1
SE2
SE3
SE4
SE5
NA
Beep Mute
CFG3
SE1
SE2
SE3 MD1
NA
MD2 Beep Mute
CFG4
NA
CFG5
NA
NA
NA
NA
NA
NA
Beep Mute
NA
NA
SE4
SE5
NA
Beep Mute
CFG6
MD3
SE2
SE3
NA
NA
NA
Beep Mute
CFG7
SE1
SE2
SE3
NA
NA
NA
Beep Mute
Only green cells are allowed mixing input. The red cells are not allowed.
The beep input is available only when DC offset detector function is not used.
4.3
4.3.1
Loudness
There are four parameters programmable in the loudness stage:
Loudness attenuation
Figure 5 shows the attenuation as a function of frequency at f_P = 400Hz
Figure 5. Loudness attenuation @ f_P = 400Hz.
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