TDA7498 STMicroelectronics, TDA7498 Datasheet - Page 24

• Manufacturer Part Number: TDA7498
• Description: Audio Amplifiers 100W +100W Dual BTL Class-D 4-Select dB
• Manufacturer: STMicroelectronics

Specifications of TDA7498

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Applications information
5.6
24/29
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
loud-speaker impedance. Some typical values, which give a cut-off frequency of 27 kHz, are
shown in
Figure 25. Typical LC filter for a 8-Ω speaker
Figure 26. Typical LC filter for a 6-Ω speaker
Figure 25
and
Figure 26
Doc ID 16107 Rev 4
below.
TDA7498