TDA7406T View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

TDA7406T

THREE BANDS DIGITALLY CONTROLLED AUDIO PROCESSOR

STMicroelectronics 

Prev 11 12 13 14 15 16 17 18 19 20 Next

TDA7406T

Figure 11. EQ band1, normal- and DC-mode @ boost = 15 dB, fCenter = 62 Hz

16

dB

14

12

10

8

6

4

2

0

-1

1

10

100

1K

Note: The center frequency, Q, DC-mode and boost/cut can be set fully independently for each filter.

Hz 10K

2.7 Subwoofer Application

There is one separate subwoofer output. A low-pass filter stage at this output allows the selection of three dif-

ferent frequencies: 80/120/160Hz. A high Pass Filter stage is present in the main path with selectable 90/135/

180/215Hz frequencies. Both filters, the low-pass as well as the high-pass filter can be disabled and have but-

terworth characteristics so that their cutoff frequencies are not equal but shifted by the factor 1.125 to get a flat

frequency response (see Figure 12).

Figure 12. Subwoofer Application with Lowpass @ 80/120/160Hz and HighPass @ 90/135/180Hz

0.0

-10.0

-20.0

dB

-30.0

-40.0

-50.0

10.0

16/49

100.0

1.0K

Hz

10.0K

Share Link: