Control circuit compatible with various sound card chips

Abstract

The utility model provides a control circuit capable of being compatible with various sound card chips, which is characterized in that a power supply is in power supply connection with a sound card compatible main control circuit, the input end of the sound card compatible main control circuit is connected with audio signal source input equipment, and the output end of the sound card compatible main control circuit is connected with audio signal playing equipment; the sound card compatible main control circuit is internally provided with a sound card chip U9, a resistor R357, a capacitor C80 and a capacitor C81, the sound card chip U9 is provided with 48 pins, the first pin of the sound card chip U9 is connected with the output end of the power supply, the 23rd and 24th pins of the sound card chip U9 are connected with the output end of audio signal source input equipment, and the 21st and 22th pins of the sound card chip U9 are connected with the input end of audio signal playing equipment. The beneficial effects of the utility model are that the control circuit can be suitable for the matching use of three sound card chips, namely an ALC662 sound card chip, an ALC892 sound card chip and an ALC897 sound card chip at the same time.

Description

Technical Field

[0001] This utility model relates to the field of sound card circuit technology, specifically to a control circuit that is compatible with multiple sound card chips. Background Technology

[0002] A sound card is a fundamental component of multimedia technology, a hardware device that converts sound waves into digital signals and vice versa. A sound card (English: SoundCard), also called an audio card, is sometimes referred to as a sound effects card in Hong Kong and Taiwan. Its basic function is to convert raw sound signals from microphones, tapes, and CDs, and output them to audio devices such as headphones, speakers, amplifiers, and recorders, or to enable musical instruments to produce beautiful sounds through a Musical Instrument Digital Interface (MIDI).

[0003] Currently, sound card manufacturing and usage have achieved miniaturization. The most common components are various sound card chips, such as the ALC662, ALC892, and ALC897. Each chip model has its own advantages and disadvantages. In daily use, the sound card chip model is usually selected, and then the corresponding peripheral circuitry is configured accordingly. However, due to diverse user needs, some users may require different sound card chips at different times and in different environments, such as using one or more of the ALC662, ALC892, and ALC897 chips to achieve better sound effects. This requires setting up a separate control circuit for each chip model, which is cumbersome, costly, and results in a poor user experience. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides a control circuit that is compatible with multiple sound card chips. By setting up mutually cooperating power supplies and sound card compatible main control circuits in the control circuit that is compatible with multiple sound card chips, it is possible to achieve the matching and use of three sound card chips at the same time: ALC662, ALC892, and ALC897. This significantly improves the user experience and solves the problem in the existing technology that it is cumbersome to set up separate external control circuits for each ALC662, ALC892, and ALC897 sound card chip when switching between them.

[0005] This utility model provides a control circuit compatible with multiple sound card chips, including a power supply and a sound card compatible main control circuit. The output terminal of the power supply is connected to the sound card compatible main control circuit. The input terminal of the sound card compatible main control circuit is connected to an audio signal input device, and the output terminal of the sound card compatible main control circuit is connected to an audio signal playback device. The sound card compatible main control circuit includes a sound card chip U9, a resistor R357, a capacitor C80, and a capacitor C81. The sound card chip U9 has 48 pins, and the first pin of the sound card chip U9 is connected to the power supply. The sound card chip U9 is connected to the output terminal of the source. Pins 23 and 24 of the sound card chip U9 are connected to the output terminal of the audio signal source input device. Pins 21 and 22 of the sound card chip U9 are connected to the input terminal of the audio signal playback device. Pin 13 of the sound card chip U9 is connected to one end of the resistor R357. The other end of the resistor R357 is connected to the audio signal source input device. Pin 25 of the sound card chip U9 is connected to one end of the capacitor C80 and one end of the capacitor C81. The other ends of the capacitors C80 and C81 are grounded.

[0006] This utility model is further improved by including resistors R358 and R359, capacitors C84 and C83, resistors R356, R715, and R724 in the sound card compatible main control circuit. Pin 13 of the sound card chip U9 is connected to one end of resistor R358 and one end of resistor R359. The other ends of resistors R358 and R359 are connected to the audio signal source input device. Pin 38 of the sound card chip U9 is connected to one end of resistor R715. The other end of resistor R715 is connected to one end of capacitor C83 and one end of capacitor C84. Pin 40 of the sound card chip U9 is connected to one end of resistor R356. Pin 42 of the sound card chip U9 is connected to one end of resistor R724. The other ends of resistors R356, R724, C83, and C84 are grounded.

[0007] This utility model is further improved in that the sound card chip U9 is model ALC662, the resistance of resistor R357 is 5.1KΩ, the resistance of resistor R358 is 20KΩ, the resistance of resistor R359 is 10KΩ, the capacitance of capacitor C80 is 10uF, the capacitance of capacitor C84 is 10uF, the capacitance of capacitor C83 is 0.1uF, the resistance of resistor R356 is 20KΩ, the resistance of resistor R715 is 0Ω, and the resistance of resistor R724 is 0Ω.

[0008] This utility model is further improved in that the sound card chip U9 is model ALC892, the resistance of resistor R357 is 5.1KΩ, the resistance of resistor R358 is 20KΩ, the resistance of resistor R359 is 10KΩ, the capacitance of capacitor C80 is 22uF, the capacitance of capacitor C84 is 22uF, the capacitance of capacitor C83 is 0.1uF, the resistance of resistor R356 is 20KΩ, the resistance of resistor R715 is 0Ω, and the resistance of resistor R724 is 0Ω.

[0009] This utility model is further improved by including resistors R716, R721, R717, R719, R723, R720, and R722, capacitors C477 and C478, a ferrite bead B3, resistor R718, and capacitor C479 in the sound card compatible main control circuit. Pin 4 of the sound card chip U9 is connected to one end of resistor R716, pin 40 of the sound card chip U9 is connected to one end of resistors R721 and R722, the other end of resistor R721 is connected to the output terminal of the power supply, pin 18 of the sound card chip U9 is connected to one end of ferrite bead B3, one end of capacitor C477, and one end of capacitor C478, the other end of ferrite bead B3 is connected to one end of resistor R717, and resistor R718... The other end of 717 is connected to pin 13 of the sound card chip U9. Pin 34 of the sound card chip U9 is connected to one end of resistor R719 and one end of resistor R720. Pin 33 of the sound card chip U9 is connected to one end of resistor R723. The other ends of resistor R719 and R723 are connected to the output terminal of the power supply. Pin 19 of the sound card chip U9 is connected to one end of resistor R718. Pin 20 of the sound card chip U9 is connected to one end of capacitor C479. The other ends of resistor R716, resistor R722, capacitor C478, capacitor C477, resistor R720, resistor R718, and capacitor C479 are grounded.

[0010] This utility model is further improved in that the sound card chip U9 is model ALC897, the resistance of resistor R716 is 1KΩ, the resistance of resistor R721 is 10KΩ, the resistance of resistor R717 is 10KΩ, the resistance of resistor R719 is 10KΩ, the resistance of resistor R723 is 10KΩ, the resistance of resistor R720 is 20KΩ, the resistance of resistor R722 is 20KΩ, the resistance of resistor R357 is 20KΩ, the capacitance of capacitor C477 is 4.7uF, the capacitance of capacitor C479 is 4.7uF, the capacitance of capacitor C478 is 0.1uF, the magnetic bead B3 is 2A, the resistance of resistor R718 is 0Ω, and the capacitance of capacitor C80 is 10uF.

[0011] Compared with the prior art, the beneficial effects of this utility model are: it provides a control circuit that is compatible with multiple sound card chips. By setting up mutually cooperating power supplies and sound card compatible main control circuits in the control circuit that is compatible with multiple sound card chips, it is possible to achieve the matching and use of three sound card chips at the same time: ALC662, ALC892, and ALC897. It cleverly utilizes the similarities and differences of the three sound card chips, integrates the three peripheral control circuits, and realizes the use of the three sound card chips in one. The operation is simple, the design cost is greatly reduced, the user experience is greatly improved, and the problem of the prior art requiring separate external control circuits to be set up for matching when switching between ALC662, ALC892, and ALC897 sound card chips is cumbersome. Attached Figure Description

[0012] To more clearly illustrate the solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 This is a circuit diagram of a control circuit that is compatible with multiple sound card chips according to this utility model. Detailed Implementation

[0014] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0015] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0016] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0017] like Figure 1As shown, this utility model provides a control circuit compatible with multiple sound card chips, including a power supply and a sound card compatible main control circuit. The output terminal of the power supply is connected to the sound card compatible main control circuit. The input terminal of the sound card compatible main control circuit is connected to an audio signal input device, and the output terminal of the sound card compatible main control circuit is connected to an audio signal playback device. The sound card compatible main control circuit contains a sound card chip U9, a resistor R357, a capacitor C80, and a capacitor C81. The sound card chip U9 has 48 pins. The pins are connected to the output of the power supply. Pins 23 and 24 of the sound card chip U9 are connected to the output of the audio signal source input device. Pins 21 and 22 of the sound card chip U9 are connected to the input of the audio signal playback device. Pin 13 of the sound card chip U9 is connected to one end of resistor R357. The other end of resistor R357 is connected to the audio signal source input device. Pin 25 of the sound card chip U9 is connected to one end of capacitor C80 and one end of capacitor C81. The other ends of capacitor C80 and the other ends of capacitor C81 are grounded. In this embodiment, the power supply provides power to the sound card compatible main control circuit. The sound card chip U9 can be any one of the three sound card chips: ALC662, ALC892, and ALC897. By connecting and disconnecting some of the electronic components in the sound card compatible main control circuit, a single control circuit can be made compatible with all three sound card chips simultaneously. This cleverly utilizes the similarities and differences among the three chips to integrate the three peripheral control circuits, achieving the combined use of the three sound card chips into one. This simplifies operation, significantly reduces design costs, and greatly improves the user experience.

[0018] like Figure 1As shown in Embodiment 1 of this utility model, the sound card compatible main control circuit also includes resistors R358, R359, capacitors C84, C83, R356, R715, and R724. Pin 13 of the sound card chip U9 is connected to one end of resistor R358 and one end of resistor R359. The other ends of resistors R358 and R359 are connected to the audio signal source input device. Pin 38 of the sound card chip U9 is connected to one end of resistor R715. The other end of resistor R715 is connected to one end of capacitor C83 and one end of capacitor C84. Pin 40 of the sound card chip U9 is connected to one end of resistor R356. Pin 42 of the sound card chip U9 is connected to... One end of resistor R724 is connected, and the other ends of resistors R356, R724, C83, and C84 are grounded. The values ​​of resistors R357, R358, and R359 are 5.1KΩ, R358, and R359 respectively. The capacitance values ​​of capacitors C80, C84, and C83 are 10uF and 0.1uF respectively. In this configuration, the sound card chip U9 can be selected as ALC662, meaning the sound card's compatible main control circuit is suitable for use with the ALC662 sound card chip.

[0019] like Figure 1As shown in Embodiment 2 of this utility model, when resistors R358, R359, C84, C83, R356, R715, and R724 are not present, the sound card compatible main control circuit also includes resistors R358, R359, C84, C83, R356, R715, and R724. Pin 13 of the sound card chip U9 is connected to one end of resistor R358 and one end of resistor R359. The other ends of resistors R358 and R359 are connected to the audio signal source input device. Pin 38 of the sound card chip U9 is connected to one end of resistor R715, and the other end of resistor R715 is connected to one end of capacitor C83. One end of capacitor C84 is connected to the sound card chip U9. Pin 40 of the sound card chip U9 is connected to one end of resistor R356, and pin 42 of the sound card chip U9 is connected to one end of resistor R724. The other ends of resistors R356, R724, C83, and C84 are grounded. The resistance values ​​of resistors R357, R358, and R359 are 5.1KΩ, 20KΩ, 10KΩ, 22uF, 22uF, and 0.1uF respectively. The resistance values ​​of resistors R356, R715, and R724 are all 0Ω. In this configuration, the sound card chip U9 can be selected as ALC892, meaning the sound card is compatible with the ALC892 sound card chip.

[0020] like Figure 1As shown in Embodiment 3 of this utility model, the sound card compatible main control circuit also includes resistors R716, R721, R717, R719, R723, R720, and R722, capacitors C477 and C478, a ferrite bead B3, resistor R718, and capacitor C479. Pin 4 of the sound card chip U9 is connected to one end of resistor R716, and pin 40 of the sound card chip U9 is connected to one end of resistor R721 and one end of resistor R722. The other end of resistor R721 is connected to the output terminal of the power supply. Pin 18 of sound card chip U9 is connected to one end of ferrite bead B3, one end of capacitor C477, and one end of capacitor C478. The other end of ferrite bead B3 is connected to one end of resistor R717. The other end of resistor R717 is connected to pin 13 of sound card chip U9. Pin 34 of sound card chip U9 is connected to one end of resistor R719 and one end of resistor R720. Pin 33 of sound card chip U9 is connected to one end of resistor R723. The other ends of resistors R719 and R723 are connected to the output terminal of the power supply. Pin 19 is connected to one end of resistor R718, and pin 20 of sound card chip U9 is connected to one end of capacitor C479. The other ends of resistors R716, R722, C478, C477, R720, R718, and C479 are grounded. The resistances of resistors R716, R721, R717, and R719 are 10KΩ, R723, and R722 are all 10KΩ, respectively. The resistance values ​​are 10KΩ, R720, R722, and R357 are all 20KΩ, C477, C479, and C478 are all 4.7uF and 0.1uF respectively. The ferrite bead B3 is rated at 2A, R718 is 0Ω, and C80 is 10uF. Therefore, the sound card chip U9 can be selected as ALC897, meaning the sound card is compatible with the main control circuit and is suitable for use with the ALC897 sound card chip.

[0021] As can be seen from the above, this utility model provides a control circuit that is compatible with multiple sound card chips. By setting up mutually cooperating power supplies and sound card compatible main control circuits in the control circuit that is compatible with multiple sound card chips, it is possible to achieve the matching and use of three sound card chips at the same time: ALC662, ALC892, and ALC897. It cleverly utilizes the similarities and differences of the three sound card chips, integrates the three peripheral control circuits, and realizes the use of the three sound card chips in one. The operation is simple, the design cost is greatly reduced, the user experience is greatly improved, and the problem of the inconvenient operation of switching between ALC662, ALC892, and ALC897 sound card chips is solved.

[0022] The specific embodiments described above are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes but is not limited to the specific embodiments described above. All equivalent changes made in accordance with this utility model are within the protection scope of this utility model.

Claims

1. A control circuit compatible with multiple sound card chips, characterized in that: The system includes a power supply and a sound card compatible main control circuit. The output of the power supply is connected to the sound card compatible main control circuit. The input of the sound card compatible main control circuit is connected to an audio signal input device, and the output of the sound card compatible main control circuit is connected to an audio signal playback device. The sound card compatible main control circuit contains a sound card chip U9, a resistor R357, a capacitor C80, and a capacitor C81. The sound card chip U9 has 48 pins, and the first pin of the sound card chip U9 is connected to the output of the power supply. Pins 23 and 24 of the sound card chip U9 are connected to the output terminal of the audio signal source input device. Pins 21 and 22 of the sound card chip U9 are connected to the input terminal of the audio signal playback device. Pin 13 of the sound card chip U9 is connected to one end of the resistor R357. The other end of the resistor R357 is connected to the audio signal source input device. Pin 25 of the sound card chip U9 is connected to one end of the capacitor C80 and one end of the capacitor C81. The other ends of the capacitors C80 and C81 are grounded.

2. The control circuit capable of being compatible with multiple sound card chips according to claim 1, characterized in that: The sound card's compatible main control circuit also includes resistors R358 and R359, capacitors C84 and C83, resistors R356, R715, and R724. Pin 13 of the sound card chip U9 is connected to one end of resistors R358 and R359. The other ends of resistors R358 and R359 are connected to the audio signal source input device. Pin 38 of the sound card chip U9 is connected to one end of resistor R715. The other end of resistor R715 is connected to one end of capacitors C83 and C84. Pin 40 of the sound card chip U9 is connected to one end of resistor R356. Pin 42 of the sound card chip U9 is connected to one end of resistor R724. The other ends of resistors R356, R724, C83, and C84 are grounded.

3. The control circuit capable of being compatible with multiple sound card chips according to claim 2, characterized in that: The sound card chip U9 is model ALC662. The resistor R357 has a resistance of 5.1KΩ, the resistor R358 has a resistance of 20KΩ, the resistor R359 has a resistance of 10KΩ, the capacitor C80 has a capacitance of 10uF, the capacitor C84 has a capacitance of 10uF, the capacitor C83 has a capacitance of 0.1uF, the resistor R356 has a resistance of 20KΩ, the resistor R715 has a resistance of 0Ω, and the resistor R724 has a resistance of 0Ω.

4. The control circuit capable of being compatible with multiple sound card chips according to claim 2, characterized in that: The sound card chip U9 is model ALC892. The resistor R357 has a resistance of 5.1KΩ, the resistor R358 has a resistance of 20KΩ, the resistor R359 has a resistance of 10KΩ, the capacitor C80 has a capacitance of 22uF, the capacitor C84 has a capacitance of 22uF, the capacitor C83 has a capacitance of 0.1uF, the resistor R356 has a resistance of 20KΩ, the resistor R715 has a resistance of 0Ω, and the resistor R724 has a resistance of 0Ω.

5. The control circuit capable of being compatible with multiple sound card chips according to claim 1, characterized in that: The sound card's compatible main control circuit also includes resistors R716, R721, R717, R719, R723, R720, and R722, capacitors C477 and C478, a ferrite bead B3, resistor R718, and capacitor C479. Pin 4 of the sound card chip U9 is connected to one end of resistor R716. Pin 40 of the sound card chip U9 is connected to one end of resistors R721 and R722. The other end of resistor R721 is connected to the output terminal of the power supply. Pin 18 of the sound card chip U9 is connected to one end of ferrite bead B3, one end of capacitor C477, and one end of capacitor C478. The other end of ferrite bead B3 is connected to one end of resistor R717. The 13th pin of the sound card chip U9 is connected to the 13th pin of the sound card chip U9. The 34th pin of the sound card chip U9 is connected to one end of the resistor R719 and one end of the resistor R720. The 33rd pin of the sound card chip U9 is connected to one end of the resistor R723. The other ends of the resistor R719 and the other ends of the resistor R723 are connected to the output terminal of the power supply. The 19th pin of the sound card chip U9 is connected to one end of the resistor R718. The 20th pin of the sound card chip U9 is connected to one end of the capacitor C479. The other ends of the resistor R716, the other ends of the resistor R722, the other ends of the capacitor C478, the other ends of the capacitor C477, the other ends of the resistor R720, the other ends of the resistor R718, and the other ends of the capacitor C479 are grounded.

6. The control circuit capable of being compatible with multiple sound card chips according to claim 5, characterized in that: The sound card chip U9 is model ALC897. The resistors R716, R721, R717, R719, R723, R720, R722, and R357 have a resistance of 1.7uF, 4.7uF, and 0.1uF respectively. The ferrite bead B3 has a capacitance of 2A. The resistor R718 has a resistance of 0Ω, and the capacitor C80 has a capacitance of 10uF.

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