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Audio coding and decoding standard chip unit and multichannel audio coding and decoding chip

An audio coding and chip unit technology, applied in instruments, voice analysis, etc., can solve the problems of many types of chip designs, uneconomical low-channel products, etc., and achieve the effect of low cost

Pending Publication Date: 2021-11-30
SHANGHAI MOUNTAIN VIEW SILICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide an audio codec standard chip unit and a multi-channel audio codec chip, which are used to solve the problem of many types of chip designs and low-channel products in the prior art. uneconomical issues

Method used

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  • Audio coding and decoding standard chip unit and multichannel audio coding and decoding chip
  • Audio coding and decoding standard chip unit and multichannel audio coding and decoding chip
  • Audio coding and decoding standard chip unit and multichannel audio coding and decoding chip

Examples

Experimental program
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Effect test

Embodiment 1

[0064] like figure 1 As shown, this embodiment provides an audio coding and decoding standard chip unit 11, and the audio coding and decoding standard chip unit 11 includes:

[0065] Control interface PAD unit 11a, audio interface PAD unit 11b, control interface interconnection PAD unit 11j, audio interface interconnection PAD unit 11k, control unit 11c, audio data transmission unit 11d, storage unit 11e, DAC unit 11f and / or ADC unit 11g and A transmission interface PAD unit corresponding to the DAC unit 11f and / or the ADC unit 11g. The setting of the DAC unit 11f and the ADC unit 11g can be based on actual needs, and the DAC unit 11f and the ADC unit 11g can be selected from one of the two; and the DAC unit 11f can be a single-channel or dual-channel digital-analog Converter, the ADC unit 11g may be a single-channel or dual-channel analog-to-digital converter. As an example, in this embodiment, the audio codec standard chip unit 11 includes a DAC unit 11f and an ADC unit 11...

Embodiment 2

[0091] like Figure 4 to Figure 6 As shown, the present embodiment provides a multi-channel audio codec chip 1, and the multi-channel audio codec chip 1 includes:

[0092] An audio coding and decoding standard chip unit 11 as described in Embodiment 1, the control interface PAD unit 11a, audio interface PAD unit 11b, DAC unit 11f and / or ADC unit 11g of the audio coding and decoding standard chip unit 11 correspond to The transmission interface PAD unit and the related PAD package of the functional interface 11m are drawn out.

[0093] Specifically, as Figure 4 As shown, the audio coding and decoding standard chip unit 11 is prepared on a wafer as a chip unit, and each cell represents a complete standard chip unit, and a single chip unit is obtained by dicing the wafer. like Figure 5 ~ Figure 6 As shown, the multi-channel audio codec chip 1 is obtained by bonding and packaging. In this embodiment, the multi-channel audio codec chip 1 is an audio codec chip of single-channe...

Embodiment 3

[0100] like Figures 7 to 9 As shown, the present embodiment provides a multi-channel audio codec chip 1, and the multi-channel audio codec chip 1 includes:

[0101] A master chip and at least one slave chip, the master chip and the slave chip adopt the audio coding and decoding standard chip unit 11 of Embodiment 1,

[0102] The transmission interface PAD unit corresponding to the control interface PAD unit 11a, the audio interface PAD unit 11b, the DAC unit 11f and / or the ADC unit 11g of the main chip and the related PAD package of the functional interface 11m lead out;

[0103] The control interface PAD unit 11a and the audio interface PAD unit 11b of each slave chip are connected to the control interface PAD unit 11j and the audio interface interconnection PAD unit 11k of the previous level slave chip, and the control interface PAD unit 11a and the audio interface of the first level slave chip The PAD unit 11b is connected to the control interface interconnection PAD unit...

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Abstract

The invention provides an audio coding and decoding standard chip unit and a multichannel audio coding and decoding chip. The chip comprises a control unit which is connected with a control interface PAD unit and is used for providing a control signal, an audio data transmission unit which is connected with the audio interface PAD unit and the storage unit and is used for transmitting audio data, a storage unit which is connected with the audio data transmission unit and is used for data caching, a DAC unit which converts the digital signal into an analog signal and outputs the analog signal through the corresponding transmission interface PAD unit, an ADC unit used for converting the analog signal into a digital signal, a control interface interconnection PAD unit which is correspondingly connected with the control interface PAD unit, and an audio interface interconnection PAD unit which is correspondingly connected with the audio interface PAD unit. According to the invention, only one standard audio coding and decoding chip with a small number of channels is designed, and the chip is expanded into a multi-channel audio coding and decoding chip through packaging interconnection and software cooperation so that the cost is low, and the chip is suitable for the demands of different numbers of channels.

Description

technical field [0001] The invention relates to the field of chip design, in particular to an audio codec standard chip unit and a multi-channel audio codec chip. Background technique [0002] Audio codecs include digital-to-analog converters and analog-to-digital converters. In different applications, there are many numbers and combinations of the two. Taking audio as an example, the lowest-end speakers have only one speaker, so only a single-channel A digital-to-analog converter and a single-channel analog-to-digital converter are enough. Common computer speakers have two speakers, which require a two-channel digital-to-analog converter and a two-channel analog-to-digital converter. The speakers on a car are at least four-channel Digital-to-analog converters with several channels of analog-to-digital converters. Audio codec design manufacturers, in order to meet the above different needs, usually do the following: design audio codecs with some typical channel configuratio...

Claims

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Application Information

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IPC IPC(8): G10L19/00G10L19/16
CPCG10L19/16
Inventor 黄勤
Owner SHANGHAI MOUNTAIN VIEW SILICON
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