参数资料
型号: TDA7498MV
厂商: STMICROELECTRONICS
元件分类: 音频/视频放大
英文描述: 100 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO36
封装: ROHS COMPLIANT, SSOP-36
文件页数: 15/27页
文件大小: 779K
代理商: TDA7498MV
Applications information
TDA7498MV
22/27
Doc ID 16505 Rev 2
5.6
Output low-pass filter
To avoid EMI problems, it may be necessary to use a low-pass filter before the speaker. The
cut-off frequency should be larger than 22 kHz and much lower than the output switching
frequency. It is necessary to choose the L and C component values depending on the
loudspeaker impedance. Some typical values, which give a cut-off frequency of 27 kHz, are
shown in Figure 23 and Figure 24 below.
Figure 23.
Typical LC filter for a 8-
speaker
Figure 24.
Typical LC filter for a 6-
speaker
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