CN2501273Y - High-power hi-fi surrounding stereo TV set - Google Patents

Abstract

The utility model discloses a television with a large power and high fidelity surround stereophonic sound system, the sound signal of a single sound channel and a double sound channels is treated by surround sound, meanwhile, large power amplification is used, compared with a common television, the non-distortion power of accompanying sound of the utility model is greatly improved, and the accompanying sound effect of the television is improved. Therefore, the utility model has the advantage of strong shocking effect.

Description

High-power, high-fidelity surround sound television set

Technical field

The utility model belongs to the improvement of TV set circuit, is specifically related to the processing to audio signal.

Background technology

General television set adopts two loud speakers of left and right sound channels, and when playing stereo audio signal, plane sound field of each loud speaker performance only just can be heard real stereophonic effect at two overlapping parts of sound field.It is far away more to depart from this position, and stereophonic effect is poor more.Simultaneously,, cause present television field frame effect not fully up to expectations, and bass is powerful inadequately, does not have the shock effect because the sound accompaniment rated power of present most of TV is all less.

Summary of the invention

For addressing the above problem, the utility model provides a kind of television set high-power, the high-fidelity surround-sound system that has.

Comprise surround sound process chip TA2136N (N502), sound accompaniment process chip TA1216AN (N503), main sound channel audio power amplifier TDA7263M (N601), mega bass power amplifier TDA2030A (N602) and control bus I in this TV set circuit ²C.

Annexation is that the audio signal of left and right sound channels links to each other with #1, the #2 terminal of surround sound process chip TA2136N (N502) between them, the #12 of surround sound process chip TA2136N (N502), #11 terminal link to each other with #30, the #26 terminal of sound accompaniment process chip TA1216AN (N503), the #21 of sound accompaniment process chip TA1216AN (N503), #22 terminal link to each other with #1, the #5 terminal of main sound channel audio power amplifier TDA7263M (N601), and the #10 of main sound channel audio power amplifier TDA7263M (N601), #8 terminal drive left and right two loud speakers respectively.

Simultaneously, the composite signal of left and right sound channels directly is linked into the #1 terminal of sound accompaniment process chip TA1216AN (N503), output to the #1 terminal of mega bass power amplifier TDA2030A (N602) again from the #8 terminal of sound accompaniment process chip TA1216AN (N503), from the #4 terminal output of mega bass power amplifier TDA2030A (N602), drive the mega bass loud speaker again.

Control bus I ²The data wire SDA of C and clock line SCL are connected #16, the #17 terminal of sound accompaniment process chip TA1216AN (N503) respectively, the #13 of sound accompaniment process chip TA1216AN (N503), #14 terminal respectively connecting ring around #19, the #20 terminal of sonication chip TA2136N (N502).

The operation principle of circuit is: the two paths of signals of left and right sound channels is introduced into surround sound process chip TA2136N and carries out the surround sound processing, left and right sound channels signal after treatment enters sound accompaniment process chip TA1216AN again and carries out processing such as high bass, balance, volume control, send into main sound channel audio power amplifier TDA7263M afterwards again, the signal after amplifying drives left and right two loud speakers respectively.

Simultaneously, the composite signal of initial left and right sound channels is directly inputted to sound accompaniment process chip TA1216AN, carries out outputing to mega bass power amplifier TDA2030A after low pass amplification, strength control, the switch switching in inside, through amplifying rear drive mega bass loud speaker.

I ²The total line traffic control sound accompaniment of C process chip TA1216AN, high bass, balance, the volume finished left and right sound channels are regulated switch switching and the strength control that reaches supper bass, and control ring is finished the switching of three kinds of surround sound states around sonication chip TA2136N.

Advantage of the present utility model and good effect are owing to adopted the surround sound treatment technology, can carry out surround sound to the audio signal of monophony and dual track and handle.Adopt high-power amplification simultaneously, left and right acoustic channels sound accompaniment rated power is greater than 8W, and mega bass power is greater than 10W, and resonance frequency 80Hz makes the sound accompaniment effect of TV have telepresenc more, and bass is more powerful, has more the shock effect.

Description of drawings

Fig. 1 is a circuit diagram high-power, the high-fidelity surround-sound system.

Embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail.In Fig. 1, the audio signal Lin of left and right acoustic channels, Rin is input to the #1 of surround sound process chip TA2136N (N502), the #2 terminal, carry out SRS in inside, the 3D surround sound is handled, signal after the processing is from #12, the #11 terminal outputs to the #30 of sound accompaniment process chip TA1216AN (N503), the #26 terminal, high bass is carried out in inside at sound accompaniment process chip TA1216AN, balance, the control of volume etc., afterwards, from #21, the #22 terminal outputs to the #1 of the power amplifier TDA7263M (N601) of left and right acoustic channels, the #5 terminal, after amplifying from #10, the output of #8 terminal, output signal Lout, Rout drives a left side respectively, right two loud speakers.

Simultaneously, the audio signal of left and right acoustic channels is input to the #1 terminal of sound accompaniment process chip TA1216AN (N503) after compound, switch the back outputs to mega bass power amplifier TDA2030A (N602) from the #8 terminal #1 terminal in inside through low pass amplification, strength control, switch, after power amplification, from the output of #4 terminal, directly drive the mega bass loud speaker.

I ²The data wire SDA of C control bus and clock line SCL are connected #16, the #17 terminal of sound accompaniment process chip TA1216AN (N503) respectively, at I ²Finish the adjusting of high bass to left and right acoustic channels, balance, volume under the control of C bus and the switch of supper bass is switched and strength control.At I ²Under the control of C bus, output a control signal to #19, the #20 terminal of surround sound process chip TA2136N (N502) respectively by #13, the #14 terminal of sound accompaniment process chip TA1216AN (N503), control ring is finished the switching of " SRS pass ", " SRS monophony ", " SRS is stereo " three kinds of surround sound states around sonication chip TA2136N (N502).

Claims (1)

1, a kind ofly has a television set high-power, the high-fidelity surround-sound system, it is characterized in that: comprise surround sound process chip TA2136N (N502), sound accompaniment process chip TA1216AN (N503), main sound channel audio power amplifier TDA7263M (N601), mega bass power amplifier TDA2030A (N602) and control bus I in this TV set circuit ²C.Annexation is that the audio signal of left and right sound channels links to each other with #1, the #2 terminal of surround sound process chip TA2136N (N502) between them, the #12 of surround sound process chip TA2136N (N502), #11 terminal link to each other with #30, the #26 terminal of sound accompaniment process chip TA1216AN (N503), the #21 of sound accompaniment process chip TA1216AN (N503), #22 terminal link to each other with #1, the #5 terminal of main sound channel audio power amplifier TDA7263M (N601), and the #10 of main sound channel audio power amplifier TDA7263M (N601), #8 terminal drive left and right two loud speakers respectively.

Simultaneously, the composite signal of left and right sound channels directly is linked into the #1 terminal of sound accompaniment process chip TA1216AN (N503), output to the #1 terminal of mega bass power amplifier TDA2030A (N602) again from the #8 terminal of sound accompaniment process chip TA1216AN (N503), from the #4 terminal output of mega bass power amplifier TDA2030A (N602), drive the mega bass loud speaker again.

Control bus I ²The data wire SDA of C and clock line SCL are connected #16, the #17 terminal of sound accompaniment process chip TA1216AN (N503) respectively, the #13 of sound accompaniment process chip TA1216AN (N503), #14 terminal respectively connecting ring around #19, the #20 terminal of sonication chip TA2136N (N502).

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