STA510F datasheet(20/26 Pages) STMICROELECTRONICS

20 / 26 page

Output filter

STA510F

20/26

DocID014268 Rev 5

See Figure 6.

See Figure 7.

5.2

Optimized filter

Suggest to avoid resonant peak when running amplifiers without load

See Figure 8.

Table 10. Theoretical table BTL

Load

Impedance

LC Low-Pass Filter

Damping network

10 µH

1 µF

220 nF

3.3

Ω

10 µH

1 µF

220 nF

3.3

Ω

15 µH

680 nF

100 nF

4.7

Ω

22 µH

470 nF

100 nF

6.2

Ω

Table 11. Theoretical table PBTL

Load

Impedance

LC Low-Pass Filter

Damping network

10 µH

1 µF

220 nF

2.7

Ω

10 µH

1 µF

220 nF

3.3

Ω

15 µH

680 nF

100 nF

6.2

Ω

22 µH

470 nF

100 nF

6.2

Ω

Table 12. Filter optimized to minimize the peak SE

Load

impedance

LC Low-pass filter

Damping network

15 µH

680 µF

100 nF

6.2

Ω

22 µH

470 nF

100 nF

6.2

Ω

33 µH

330 nF

100 nF

6.2

Ω

47 µH

220 nF

100 nF

6.2

Ω

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