Справочник Пользователя для Nxp Semiconductors TFA9812

TFA9812_2

© NXP B.V. 2009. All rights reserved.

Remark: A 4.8

Ω

 speaker (6

Ω

 speaker with 20 % spread) in BTL configuration can be

used up to a supply voltage of 17 V without running into current limiting. Current limiting
(clipping) will avoid audio holes, but it causes a distortion comparable to voltage clipping.

For a flat-frequency response (second-order Butterworth filter) it is necessary to change
the low pass filter components L

LC

 and C

LC

 according to the speaker configuration and

impedance.

Ω

µ

6

15

680

8

18

560

16

47

330