TDA7402 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

TDA7402

Car Radio Signal Processor

STMicroelectronics 

Prev 21 22 23 24 25 26 27 28 29 30 Next

Audioprocessor part

TDA7402

3.14 Subwoofer

Several different applications are possible with the subwoofer circuit:

1. Subwoofer filter OFF

a) Main source stereo (AC coupled)

b) Second source stereo (DC coupled)

c) Main source mono differential (DC coupled)

d) Second source mono-differential (DC coupled)

2. Subwoofer filter ON

a) Main source mono differential (DC coupled)

b) Second source mono differential (DC coupled)

c) Center speaker mode (filtered mono signal at SWL, unfiltered mono signal at

t(s) SWR)

c In all applications the phase of the output-signal can be configured to be 0° or 180°. In the

u center speaker mode only at the filtered output the phase is changed.

rod Figure 20. Application 1 using internal highpass and mono low pass filter

P PROGRAMMING

te 5/1xxxxxxx

7/xxxxx1xx

le 10/xxxx10xx

12/1010xxxx

220nF

220nF

ACINF ACOUT ACINR

SWIN

- Obso MAIN SOURCE

) LEFT CHANNEL

BASS-FILTER

VOICE BAND

BANDPASS

Product(s MAIN SOURCE

RIGHT CHANNEL

teSECOND SOURCE

Obsole LEFT CHANNEL

25K

MS MONO

50K

50K 50K

25K

LOWPASS

25K

SEC.S MONO

25K

OFF/ON FC

SPEAKER FRONT

SPEAKER REAR

SPEAKER SUBWOOFER

D00AU1156

SECOND SOURCE

28/69

Share Link: