TDA7492 STMicroelectronics, TDA7492 Datasheet - Page 26

• Manufacturer Part Number: TDA7492
• Description: IC, AMP, AUDIO, CLASS D, 36POWERSO
• Manufacturer: STMicroelectronics

Specifications of TDA7492

• Amplifier Class: D
• No. Of Channels: 2
• Supply Voltage Range: 8V To 26V
• Load Impedance: 8ohm
• Operating Temperature Range: 0°C To +70°C
• Amplifier Case Style: PowerSO
• No. Of Pins: 36
• Svhc: No SVHC
• Output Power: 40W
• Thd + N: 0.1% @ 1W, 8ohm, VCC=25V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Applications information
6.5
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Output low-pass filter
To avoid EMI problems, it may be necessary to use a low-pass filter before the speaker. The
cutoff frequency should be larger than 22 kHz and much lower than the output switching
frequency. It is necessary to choose the L-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 33. Typical LC filter for a 8-Ω speaker
Figure 34. Typical LC filter for a 4-Ω speaker
Figure 33
and
Figure 34
Doc ID 14926 Rev 4
below.
TDA7492