参数资料
型号: TDA7417
厂商: STMICROELECTRONICS
元件分类: 音频控制
英文描述: 1 CHANNEL(S), EQUALIZER CIRCUIT, PQFP32
封装: 7 X 7 MM, 1.40 MM HEIGHT, LEAD FREE, TQFP-44
文件页数: 13/34页
文件大小: 438K
代理商: TDA7417
Description of the audioprocessor
TDA7417
4.8
Highpass filter
The highpass filter has 2 order filter characteristics with programmable cut-off frequency
(80/120/160Hz)
Figure 15.
Highpass Control
4.9
Output Selector and Mixing
The output-selector allows different sources to connect to the front output. The setup of the
output selector is shown in Figure 16. A Mixing-stage is placed after the front speaker-
attenuator and can be set to mixing-mode.
In normal mode, switch (sw1) turns to down and main signal is directly outputted through
front pin. In the mixing mode, switch (sw1) turns up, mono differential signal and main signal
are mixed with ratio -6/-6dB. Having a full volume-attenuator for the mix-signal, the stage
offers a wide flexibility to adapt the mixing levels.
Figure 16.
Output Selector
Rear
Main
Mix_out
Attenuator
SW
sw
1
-6/-6
dB
Mono
Differential
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