CN201001236Y - Signal processing plate and TV set - Google Patents

Abstract

The utility model applies to a printed circuit board field, which provides a signal processing board and a TV. The signal processing board comprises a plurality of hole sites compatible with a plurality of encapsulating function chips, and a plurality of zero ohm resistances arranged at the hole sites commonly used by the different encapsulating function chips, wherein the different encapsulating function chips are connected with the corresponding zero ohm resistances. The utility model obligates the hole sites compatible with a plurality of encapsulating function chips on the printed circuit board field, to make the different encapsulating function chips used the same signal processing board, thus the PCB purchasing cost is greatly decreased, the production art is simplified, and the production efficiency is improved.

Description

A kind of signal-processing board and television set

Technical field

The utility model belongs to art of printed circuit boards, relates in particular to a kind of signal-processing board and a kind of television set.

Background technology

In present television design, because the encapsulation difference of the functional chip that adopts, for example, 24V power supply the power audio power amplifier chip of two kinds of different encapsulation of ST_TDA7266SA of 15 pins of PHILIPHS_TDA2616 and the 12V power supply of 9 pins of powering, it is adaptive to need different signal-processing boards.

Exist except that the cost that causes manufacturer's exploitation, production and handling of goods and materials improves in the time of multiple signal-processing board, also increased the difficulty of after-sales service.If the buying of the functional chip of certain encapsulation mounted thereto is untimely, can not substitute with the functional chip of other encapsulation, will cause serious consequences such as stopping production.

The utility model content

The purpose of this utility model is to provide a kind of signal-processing board, be intended to solve that prior art exists owing to adopt the functional chip of different encapsulation to make manufacturer must design different signal-processing boards, cause cost height, maintenance difficult and the untimely problem that causes stopping production of functional chip buying.

Another purpose of the present utility model is to provide a kind of television set.

The utility model is achieved in that a kind of signal-processing board, and described signal-processing board comprises:

The position, a plurality of hole of compatible multiple encapsulation function chip; And

At a plurality of Zero-ohm resistors that install at the shared place, position, hole of the functional chip of difference encapsulation, the functional chip of different encapsulation is communicated with corresponding Zero-ohm resistor.

Described functional chip is the audio power amplifier chip.

Described Zero-ohm resistor is a signaling switch.

Described signal-processing board also comprises:

For cooperating the functional chip of multiple encapsulation, compatibility reserves the fin of position, a plurality of hole.

A kind of television set comprises signal-processing board, and described signal-processing board comprises:

The position, a plurality of hole of compatible multiple encapsulation function chip; And

At a plurality of Zero-ohm resistors that install at the shared place, position, hole of the functional chip of difference encapsulation, the functional chip of different encapsulation is communicated with corresponding Zero-ohm resistor.

Described functional chip is the audio power amplifier chip.

Described Zero-ohm resistor is a signaling switch.

Described signal-processing board also comprises:

For cooperating the functional chip of multiple encapsulation, compatibility reserves the fin of position, a plurality of hole.

The utility model embodiment is by reserving the position, hole of functional chip that can compatible multiple encapsulation on printed circuit board (PCB), make the functional chip of different encapsulation can use same block signal disposable plates, greatly reduce the PCB purchase cost, simplified production technology, improved production efficiency.

Description of drawings

Fig. 1～6th, an exemplary plot of the present utility model.

Embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

The utility model embodiment passes through at printed circuit board (PCB) (print circuit board, PCB) functional chips of going up the feasible different encapsulation in position, hole of the functional chip of reserving multiple encapsulation can use same block signal disposable plates, greatly reduce the PCB purchase cost, simplify production technology, improved production efficiency.

PHILIPHS_TDA2616 and 12V power supply with the power supply of 24V power supply, 9 pins powered, the audio power amplifier chip of two kinds of encapsulation of ST_TDA7266SA of 15 pins is that example describes:

The encapsulation signal of ST_TDA7266SA is the single IC of 15 pin as shown in Figure 1, and the pin distance is 1.27MM.The encapsulation signal of PHILIPHS_TDA2616 as shown in Figure 2, be the single IC of 9 pin, the pin distance is 2.54MM, just be the twice of ST_TDA7266SA, thus ST_TDA7266SA is shaped to double, as shown in Figure 3, front-seat 8 pin, back row's 7 pin make that every row's pin distance is identical with PHILIPHS_TDA2616, are 2.54MM.

So can realize that by 17 pads reserving as shown in Figure 4 this PCB is shared by two kinds of power amplifier chips on PCB, wherein 9 of the with dashed lines rectangle marked pads are used for PHILIPHS_TDA2616,15 pads in dotted line is trapezoidal are used for ST_TDA7266SA.Clearly have 7 pads shared by above-mentioned two power amplifiers, the PCB circuit theory of this signal-processing board correspondence as shown in Figure 5, wherein, triangle is the position of reserving for the pin of PHILIPHS_TDA2616, hole, A is the signal relevant with this IC; Circle is the position of reserving for the pin of ST_TDA7266SA, hole, and B is the signal relevant with this IC; It is the position of reserving for both shared pins, hole that triangle adds circle, because the pin of two IC is different with peripheral connection, so provide 2 branch roads at shared pin place, reserved the position, hole of 14 zero resistances (being connecting line) altogether, when using PHILIPHS_TDA2616, at position a 70 Ohmic resistances are installed, when using ST_TDA7266SA, at position b 70 Ohmic resistances are installed, thereby are made these 7 pin bores potential energies enough shared by two power amplifiers institute.As can be seen, compare with two kinds of signal-processing boards of use in the existing scheme, the utility model embodiment only is 0 Ohmic resistance that increases by 7 costs of can ignoring, but only overlaps PCB mould and tin cream steel mesh with opening one, thereby has also simplified production technology when saving cost.Owing to increased the pin distance of ST_TDA7266SA, the company's of being not easy weldering has improved production efficiency greatly in the production process simultaneously.

In addition, when on the above-mentioned signal-processing board fin being installed, can on fin, open the audio power amplifier chip that standby hole adapts to above-mentioned different encapsulation, as shown in Figure 6, the identical 20MM that is of fixing hole centre-to-centre spacing of PHILIPHS_TDA2616 and ST_TDA7266SA, because the fixing hole of ST_TDA7266SA is 14MM apart from the pin bottom, the fixing hole of PHILIPHS_TDA2616 is 23MM apart from the pin bottom, so a is for being fixed on PHILIPHS_TDA2616 in the standby hole on the fin, b is for being fixed on ST_TDA7266SA in the standby hole on the fin.Thereby make that the functional chips of different encapsulation can a shared fin, further simplified technology, improved production efficiency.

So that being installed, 70 Ohmic resistances realize the switching of the functional chip peripheral signal of different encapsulation in the foregoing description, in another embodiment of the present utility model, 14 signaling switches are installed altogether in a, b position, with reference to figure 5, when using PHILIPHS_TDA2616,7 signaling switches at position a place are connected realize 0 Ohmic resistance, when using ST_TDA7266SA, 7 signaling switches at position b place are connected realize 0 Ohmic resistance.

Above-mentioned signal-processing board can be applicable in the multiple electrical equipment such as television set, video disc player.

The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.

Claims (8)

1, a kind of signal-processing board is characterized in that, described signal-processing board comprises:

The position, a plurality of hole of compatible multiple encapsulation function chip; And

At a plurality of Zero-ohm resistors that install at the shared place, position, hole of the functional chip of difference encapsulation, the functional chip of different encapsulation is communicated with corresponding Zero-ohm resistor.

2, signal-processing board as claimed in claim 1 is characterized in that, described functional chip is the audio power amplifier chip.

3, signal-processing board as claimed in claim 1 or 2 is characterized in that, described Zero-ohm resistor is a signaling switch.

4, signal-processing board as claimed in claim 3 is characterized in that, described signal-processing board also comprises:

For cooperating the functional chip of multiple encapsulation, compatibility reserves the fin of position, a plurality of hole.

5, a kind of television set comprises signal-processing board, it is characterized in that, described signal-processing board comprises:

The position, a plurality of hole of compatible multiple encapsulation function chip; And

At a plurality of Zero-ohm resistors that install at the shared place, position, hole of the functional chip of difference encapsulation, the functional chip of different encapsulation is communicated with corresponding Zero-ohm resistor.

6, television set as claimed in claim 5 is characterized in that, described functional chip is the audio power amplifier chip.

As claim 5 or 6 described television sets, it is characterized in that 7, described Zero-ohm resistor is a signaling switch.

8, television set as claimed in claim 7 is characterized in that, described signal-processing board also comprises:

For cooperating the functional chip of multiple encapsulation, compatibility reserves the fin of position, a plurality of hole.

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