參數(shù)資料
型號: TDA7417TR
廠商: 意法半導(dǎo)體
英文描述: Car radio audio processor
中文描述: 汽車收音機(jī)音頻處理器
文件頁數(shù): 14/34頁
文件大?。?/td> 347K
代理商: TDA7417TR
Description of the audioprocessor
TDA7417
14/34
AutoZero-Remain
In some cases, for example if the μP is executing a refresh cycle of the IIC-Bus-
programming, it is not useful to start a new AutoZero-action because no new source is
selected and an undesired mute would appear at the outputs. For such applications, it can
be switched in the
AutoZero-Remain-Mode
(Bit 6 of the subaddress-byte). If this bit is set
to high, the AutoZero will not be invoked and the old adjustment-value remains.
4.3
Loudness
There are four parameters programmable in the loudness stage:
4.3.1
Attenuation
Figure 4
shows the attenuation as a function of frequency at f
P
= 400Hz.
Figure 4.
Loudness Attenuation @ f
P
= 400Hz
4.3.2
Peak Frequency
Figure 5
shows the four possible peak-frequencies at 400, 800 and 2400Hz.
Figure 5.
Loudness Center frequencies @ Attn. = 15dB
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