TDA7498LTR STMicroelectronics, TDA7498LTR Datasheet - Page 22

• Manufacturer Part Number: TDA7498LTR
• Description: Audio Amplifiers 80W and 80W Dual BTL Class-D Audio Amp
• Manufacturer: STMicroelectronics

Specifications of TDA7498LTR

• Product Category: Audio Amplifiers
• Rohs: yes
• Product: Class-D
• Output Type: Dual
• Output Power: 80 W
• Thd Plus Noise: 10 %
• Operating Supply Voltage: 44 V
• Supply Current: 40 mA
• Maximum Power Dissipation: 16 W
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: PowerSSO-36
• Available Set Gain: 25.6 dB, 31.6 dB, 35.1 dB, 37.6 dB
• Input Signal Type: Differential
• Minimum Operating Temperature: - 40 C

Applications information
5.6
22/27
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 and C component values depending on the
loudspeaker impedance. Some typical values, which give a cutoff 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 16504 Rev 3
below.
TDA7498L