3 thoughts on “Data cable interface type introduction”
Timothy
Micro-USB data cable; usb interface data cable; C type data cable; At present, newly released mobile phones or other digital devices use more Type-C interfaces. The interfaces of Android are not universal (the interface style is different, cannot be inserted). Micro USB data cable usb is a portable version of USB2.0 standard, which is often used for mobile phone charging and data transmission. It supports hot insertion and uses a uniform standard specification. All Android phones using the interface can be used and have the characteristics of long service life. Is mini USB data cable usb is divided into type A, B and AB. Mini interface data cable is called USBMINI version, miniusb line, is rarely used at present, and it became popular more than ten years ago. This interface is often used for 3C digital devices such as functional mobile phones, small digital devices (card machines); this interface is divided into two types: charging and charging data transmission. C type data cable type-C interface, a USB (general serial bus) interface; currently it is a common data cable for mobile phones, mobile hard disks, PCs and other devices. Type-C is much smaller than the interfaces of Type-A and Type-B. There is no difference in the direction of the positive and negative interface; Compared with the previous two USB interfaces, the data transmission of devices using the Type-C interface is much faster. The charging speed is much faster. ps: We often see USB1.0, USB2.0, USB3.0, etc. USB is the abbreviation of general serialary bus, which is the interface specification version of USB. Abstract The data cable of the Android machines in recent years is basically a Type-C data cable with faster speed and better versatility. When buying the data cable, you must recognize the interface to avoid choosing errors.
The type of data cable interface is Micro-USB interface, Lightning interface, Type-C interface micro-usb interface: The most common in Android machine is the most widely used interface. lightning interface: This is a special data line designed by Apple’s Apple device. Apple has a new practical patent and appearance patent for products. type-C interface: This is a newly defined data cable interface of the USB Association in recent years. It can be inserted on both sides. Charging, data transmission, display output and other functions.
Introduction to the type of data cable interface The data cable interface type introduction, in daily life, mobile phones, computers, speakers, and some electrical items in life are inseparable from the data cable, and there are many types of data cable interfaces, different, different The data cable interface meets the needs of different electrical items. So what are the types of data cable interface? The following is the introduction of the type of data cable interface. I hope it will be helpful to everyone! The data cable type introduces 1 data cable, which is a channel tool that connects the computer to transmit files such as bells. The interface type can be divided into COM interface and USB interface. The COM interface is also called serial port. It is connected to the desktop computer and is currently being eliminated. The USB interface is the current mainstream, and the advantage is that it is convenient and fast and stable.
Tacable, its role is to connect mobile devices and computers to achieve data communication goals. In layman’s terms, it is a channel tool that connects the computer to transmit files such as bells. With the rapid development of the electronics industry, data cables have become an indispensable part of our lives. The classification according to the interface type COM interface and USB interface 1. The COM interface is also called serial port, which is connected to the desktop computer and is currently being eliminated. The advantage is that the price is low and supports the flashing machine (some mobile phones can only use the serial port to flash the machine); the disadvantage is that it is extremely inconvenient to remove it. It does not support laptops and the transmission speed is relatively slow. 2. The USB interface is the current mainstream. The advantage is that it is convenient and fast and stable. It supports all models of computers. The disadvantage is that the price of IC (central control chip) is slightly higher, and some data cables do not support flashing functions. The classification of USB interface data cable does not have IC (central control chip); IC (central control chip); special chip. 1. Without IC (central control chip): Without a central control chip, you must plug in the mobile phone to recognize the line. The price is cheap. Typical models: Samsung CDMA series, D500 series; Motorola E398 series, V3 series; Nokia DKU-2; NEC N720 series; Siemens 65 series and so on. 2. Bring IC: Bring a central control chip. The model of ordinary chips is 2303, 2101, and 3116. It will recognize the line without plugging in a computer. Since the price of a IC is more than 10 yuan, the price is not with IC. More expensive. The working principle of the data cable with a chip is USB to COM, which converts the USB interface into a serial port to display on the computer. Typical models: Samsung E638 series, D418 series; NEC N610 series; Siemens 25 series, 55 series; Sony Ericsson mobile phone data cable; Panasonic mobile phone data cable; Lenovo mobile phone data cable, etc. 3. Special chips: non-ordinary popular chips, special model chips such as DKU-5, CA-42, DCU-11, and so on. Note: Do not mistakenly believe that the quality of IC is good, without the quality of the IC, and the actual use of IC is produced according to the application of the mobile phone. It data cable interface type Introduction of 2 data cables? The data cable is divided into Internet cables according to functions; flashing lines; synchronous cables; charging cables; multi -function cables. 1. Internet cable: can only be used to access the Internet for GPRS or CDMA 1X. Typical model: V730 series; V688 series; small spiritual series. 2. Brush: It can only be used to upgrade the flashing. Typical model: BenQ S700; upgrade to unlock the front line. 3. Synchronous lines: used to transmit telephone books; picture ringtones; SMS; multimedia data, etc. Of course, part of which is two -way transmission, and some of them only support one -way transmission. Such data cables are more common. 4. Charging cable: Generally, an Internet or synchronous line is added with a USB charging function. It is more practical and convenient. It can also be subdivided into two types: charging and charging switch. The former is charged as soon as it is inserted. The latter has a small switch to control whether it is charging. Of course, the charging switch is the highest grade and the price is relatively expensive. 5. Multi -functional lines: support 2 or more functions of 2 or more items such as Internet, synchronization, flashing, charging, remind you: when you buy the data cable, you must have more functions. It is equal to multiple uses. What are the video cables? Video cable interface function HDMI cable HDMI high -definition multimedia interface (English: High Interface) is a full digital image and sound transmission interface, which can convey compressed audio signals and video signals. HDMI can be used for set -top boxes, DVD players, personal computers, TV play instruments, comprehensive expansion machines, digital audio and televisions. HDMI can transmit audio and video signals at the same time. Because the audio and video signals use the same cable, which greatly simplifies the system installation. HDMI interfaces are transmitted with full digital signals as DVI, but the difference is that the HDMI interface can not only provide full number video signals, but also transmit audio at the same time. It is like returning to the wired radio frequency interface again, but it is not the same that the use of full digital signal transmission does not cause video and audio interference like radio frequency to cause poor picture quality. The advantage of applying HDMI is that only one HDMI cable is required to transmit audio -visual signals at the same time, unlike multiple wires to connect. At the same time, due to wirelessly, modulus or modulus, and numbers, higher audio and video transmission quality can be obtained. AV cable AV cable is the abbreviation of the Audio Cable and Video Cable. Whether it is audio cable or video cable, it can effectively eliminate foreign electromagnetic interference and can transmit signals with a high -quality line that can be transmitted original. This is the oldest transmission simulation video signal. The ends are the lotus head (RCA head), and the DVD machine and the TV will have this interface. AV interface: The AV interface is widely used in TV and DVD, and is one of the necessary interfaces for each TV. This line is generally not required during decoration. The AV interface is currently some vehicle GPS devices. Through the sound and video terminal carried by itself, connecting the AV line to the output of its own data image sound, etc., to other display and audiovisual devices, such as external displays or headphones. The terminal, the S-Video terminal, the headset interface, etc. It can be regarded as a improved interface for TV, which is very different in appearance. It is divided into 3 lines, namely: audio interface (red and white line, forming left and right channels) and video interface (yellow). Ovisons that are still mixed with brightness and chroma because the AV output is still a video signal, so the device still needs to be separated from the brightness and color separation of the device, and the decoding can be used to imagine. This approach will inevitably cause losses to the quality, so the picture quality of the AV interface is still not satisfactory. It is very simple in terms of connection. Just connect the interface of the three colors of AV cables with the three colors of the TV. In general, the AV interface realizes the separation of audio and video, and can avoid the decline in the image quality caused by the interference of audio and video in terms of imaging. The AV interface is widely used in the connection between TV and DVD, and is one of the necessary interfaces for each TV. S terminal line The video cable that has appeared better than the AV line in previous years. The interface is round and similar to the PS2 mouse head. Generally speaking, this interface is widely used in videos and game devices such as DVD, PS2, Xbox, NGC. The S terminals no longer mix the color and brightness in signal transmission. Instead, signal transmission is separated. It is a “dual -scale video interface”. S terminals usually have five core interfaces, consisting of two video brightness signals, two video color signals, and a total of five core wires of the road public shielding ground wire (in fact, there is a supporting brightness and color contrast separator with its facilities. To. It is not difficult to see from its structure that it is a device used to separate brightness and chroma. The color difference line The videos with better quality than S terminal lines, transmitting analog signals, should be the best video cable in the analog signal, the new DVD machine, the new DVD machine, High -end TV and home projectors have this interface. The color difference component interface This interface can be used on DVD, PS2, Xbox, NGC and other videos and game devices. The quality of the picture must be stronger than the S terminal. The color difference is divided into line -by -line and interlaced display. Generally speaking, there are several letters on the component interface to indicate row and interval. It is expressed by YCBCR, and it is expressed by YPBPR. If the TV only has YCBCR component terminals, it means that the TV cannot support the ryle component. Essence VGA cable VGA cable is also an analog signal video cable. It is most common in computers. The signal is different from the color difference line. Signals, the redundant of the color difference line will be larger, and after the resolution exceeds 1600X1200, the VGA cable is slightly more quality, and the length of the length will cause snowflakes. Why does home theater mentioned the VGA cable? That’s because HTPC enters the home theater, and all projectors have a VGA interface. HD VGA cable HD VGA cable. VGA interface is also called (s-dub), which is derived from the input interface of the computer. Since the CRT display cannot directly accept the input of the digital signal, the graphics card can only be used to obtain the picture to get the emulating signal input display. VGA is the interface of the simulation signal to the display. There are 15 stitches on the VGA interface, divided into three rows, each in five. The VGA interface is the most widely used interface type on the graphics card, and most of the graphics cards have this interface. can the LCD TV of the VGA interface be a display? The VGA interface is the interface that outputs an analog signal on the graphics card. VGA (Video Graphics Array) interface, also known as D-SUB interface. Although the LCD display can directly receive digital signals, many low -end products use VGA interfaces in order to match the VGA interface graphics card. The VGA interface is a D -type interface with a total of 15 stitches on it, divided into three rows, each row of five. The VGA interface is the most widely used interface type on the graphics card, and most of the graphics cards have this interface. If you want to connect to the TV with a computer, to buy a VGA cable for LCD display, you have to adjust the resolution of the computer, and the screen in the computer can appear on the TV. DVI cable DVI cable full name Digital visual interface, the latest digital video cable, DVI interface and VGA are the most commonly used interfaces in the computer. Unlike VGA, DVI is an interface transmitted by full digital transmission. Therefore, the picture quality guarantees completely non -compressed transmission. DVI cable interface transmission speed is as high as 8Gbps, and its interface has 24 1 (DVI-D), 24 5 (DVI-I), DVI-I supports the same transmission number (DVI-D) and analog signals at the same time (VGA signal). Generally speaking, HTPC’s graphics card is generally DVI-I interface, while the LCD display, the projector is the DVI-D interface. Although the interface of DVI-I is compatible with the DVI-D interface, the plug of DVI-I plug is Can’t insert the DVI-D interface, why? There are four more needles. But we still have a way to use a DVI-I to DVI-D converter. Where are the types of audio cables? The speaker cable is used to connect the amplifier and speakers. Among them, the circulating current signal is much larger than the video cable and audio cable mentioned earlier. The key is to reduce its resistance. Because the output resistance of the modern amplifier is very low, the requirements for the speaker line have also increased. The wires are available from pure copper to silver wires. A kind of speaker line that is more expensive is an oxygen copper speaker. The main feature is that the conductivity is good and the resistivity is low. few. The classification of home speakers is divided into home theater speakers (generally 6) and HIFI music speakers (two), which is generally called fever speaker. HIFI speakers are used to restore recording sound fields in High -fidelity, so it is enough to ensure the loss of damage to the audio signal. The general transmission cable has different impedance to different frequency signals. This characteristic is that the sound is blurred in the restoration of the sound. To this end The characteristic of the species is that the signal is divided into two channels according to the frequency level. The outer line with a certain thickness through the signal of 5kHz or more, and the signal below 5kHz transmits through the inner layer of the line. This greatly improves the frequency characteristics of the transmission line. Make the sound of the replacement clear and transparent. However, the price is also very expensive. The brands mentioned above are mostly produced fever sounds. The input and output port of the speaker interface is divided into two types of simulation ports and digital ports. What form of audio sockets to choose when buying audio interfaces, first of all, you need to consider matching issues. If the device connected to the audio interface is simulated, then the audio interface of the simulation socket should be selected. If you connect to the audio interface with digital devices, it is best to use the audio interface of the digital port. The match in this form is very important. At present, some users use the digital mixer, but choose the audio interface of the simulation port for their computer audio workstations. The number of times of the mold and mode/number conversion makes the signal be applied for unnecessary losses in the transmission process, and the simulation audio cable is used too much (especially these analog audio cables are wrapped together), which will also make the cables mutual mutual Interference, generating noise. Audio cable: A set of audio cables are often two, divided into two left and right channels, and both ends of the line are lotus head (RCA head). The audio cable does not need to be considered when wiring, because the sound source equipment and amplifiers are often put together. These cables are short, and the later configuration can be configured. rn 同轴线: 用于传输多声道信号(杜比AC-3或者DTS信号),与音频线类似,因信号量大,接头及线都比普通音频线粗一些,一般用于Connect DVD machine and amplifier. Fiber line: It is also used to transmit multi-channel signals (Dolby AC-3 or DTS signals) for connecting DVD machines and amplifiers. The microphone line: a two -core coaxial line for connecting power amplifiers and microphones. At present, the rise of wireless microphones, if it is not for special considerations, can not be considered during wiring, and the application of wireless microphone will definitely become wider and wider in the future.
Micro-USB data cable;
usb interface data cable;
C type data cable;
At present, newly released mobile phones or other digital devices use more Type-C interfaces.
The interfaces of Android are not universal (the interface style is different, cannot be inserted).
Micro USB data cable
usb is a portable version of USB2.0 standard, which is often used for mobile phone charging and data transmission. It supports hot insertion and uses a uniform standard specification. All Android phones using the interface can be used and have the characteristics of long service life.
Is mini USB data cable
usb is divided into type A, B and AB.
Mini interface data cable is called USBMINI version, miniusb line, is rarely used at present, and it became popular more than ten years ago. This interface is often used for 3C digital devices such as functional mobile phones, small digital devices (card machines); this interface is divided into two types: charging and charging data transmission.
C type data cable
type-C interface, a USB (general serial bus) interface; currently it is a common data cable for mobile phones, mobile hard disks, PCs and other devices. Type-C is much smaller than the interfaces of Type-A and Type-B. There is no difference in the direction of the positive and negative interface;
Compared with the previous two USB interfaces, the data transmission of devices using the Type-C interface is much faster. The charging speed is much faster.
ps: We often see USB1.0, USB2.0, USB3.0, etc. USB is the abbreviation of general serialary bus, which is the interface specification version of USB.
Abstract
The data cable of the Android machines in recent years is basically a Type-C data cable with faster speed and better versatility. When buying the data cable, you must recognize the interface to avoid choosing errors.
The type of data cable interface is Micro-USB interface, Lightning interface, Type-C interface
micro-usb interface: The most common in Android machine is the most widely used interface.
lightning interface: This is a special data line designed by Apple’s Apple device. Apple has a new practical patent and appearance patent for products.
type-C interface: This is a newly defined data cable interface of the USB Association in recent years. It can be inserted on both sides. Charging, data transmission, display output and other functions.
Introduction to the type of data cable interface
The data cable interface type introduction, in daily life, mobile phones, computers, speakers, and some electrical items in life are inseparable from the data cable, and there are many types of data cable interfaces, different, different The data cable interface meets the needs of different electrical items. So what are the types of data cable interface? The following is the introduction of the type of data cable interface. I hope it will be helpful to everyone!
The data cable type introduces 1 data cable, which is a channel tool that connects the computer to transmit files such as bells. The interface type can be divided into COM interface and USB interface. The COM interface is also called serial port. It is connected to the desktop computer and is currently being eliminated. The USB interface is the current mainstream, and the advantage is that it is convenient and fast and stable.
Tacable, its role is to connect mobile devices and computers to achieve data communication goals. In layman’s terms, it is a channel tool that connects the computer to transmit files such as bells. With the rapid development of the electronics industry, data cables have become an indispensable part of our lives.
The classification according to the interface type
COM interface and USB interface
1. The COM interface is also called serial port, which is connected to the desktop computer and is currently being eliminated. The advantage is that the price is low and supports the flashing machine (some mobile phones can only use the serial port to flash the machine); the disadvantage is that it is extremely inconvenient to remove it. It does not support laptops and the transmission speed is relatively slow.
2. The USB interface is the current mainstream. The advantage is that it is convenient and fast and stable. It supports all models of computers. The disadvantage is that the price of IC (central control chip) is slightly higher, and some data cables do not support flashing functions.
The classification of USB interface data cable
does not have IC (central control chip); IC (central control chip); special chip.
1. Without IC (central control chip): Without a central control chip, you must plug in the mobile phone to recognize the line. The price is cheap.
Typical models: Samsung CDMA series, D500 series; Motorola E398 series, V3 series; Nokia DKU-2; NEC N720 series; Siemens 65 series and so on.
2. Bring IC: Bring a central control chip. The model of ordinary chips is 2303, 2101, and 3116. It will recognize the line without plugging in a computer. Since the price of a IC is more than 10 yuan, the price is not with IC. More expensive. The working principle of the data cable with a chip is USB to COM, which converts the USB interface into a serial port to display on the computer.
Typical models: Samsung E638 series, D418 series; NEC N610 series; Siemens 25 series, 55 series; Sony Ericsson mobile phone data cable; Panasonic mobile phone data cable; Lenovo mobile phone data cable, etc.
3. Special chips: non-ordinary popular chips, special model chips such as DKU-5, CA-42, DCU-11, and so on.
Note: Do not mistakenly believe that the quality of IC is good, without the quality of the IC, and the actual use of IC is produced according to the application of the mobile phone.
It data cable interface type Introduction of 2 data cables?
The data cable is divided into Internet cables according to functions; flashing lines; synchronous cables; charging cables; multi -function cables.
1. Internet cable: can only be used to access the Internet for GPRS or CDMA 1X. Typical model: V730 series; V688 series; small spiritual series.
2. Brush: It can only be used to upgrade the flashing. Typical model: BenQ S700; upgrade to unlock the front line.
3. Synchronous lines: used to transmit telephone books; picture ringtones; SMS; multimedia data, etc. Of course, part of which is two -way transmission, and some of them only support one -way transmission. Such data cables are more common.
4. Charging cable: Generally, an Internet or synchronous line is added with a USB charging function. It is more practical and convenient. It can also be subdivided into two types: charging and charging switch. The former is charged as soon as it is inserted. The latter has a small switch to control whether it is charging. Of course, the charging switch is the highest grade and the price is relatively expensive.
5. Multi -functional lines: support 2 or more functions of 2 or more items such as Internet, synchronization, flashing, charging, remind you: when you buy the data cable, you must have more functions. It is equal to multiple uses.
What are the video cables? Video cable interface function
HDMI cable
HDMI high -definition multimedia interface (English: High Interface) is a full digital image and sound transmission interface, which can convey compressed audio signals and video signals. HDMI can be used for set -top boxes, DVD players, personal computers, TV play instruments, comprehensive expansion machines, digital audio and televisions. HDMI can transmit audio and video signals at the same time. Because the audio and video signals use the same cable, which greatly simplifies the system installation.
HDMI interfaces are transmitted with full digital signals as DVI, but the difference is that the HDMI interface can not only provide full number video signals, but also transmit audio at the same time. It is like returning to the wired radio frequency interface again, but it is not the same that the use of full digital signal transmission does not cause video and audio interference like radio frequency to cause poor picture quality. The advantage of applying HDMI is that only one HDMI cable is required to transmit audio -visual signals at the same time, unlike multiple wires to connect. At the same time, due to wirelessly, modulus or modulus, and numbers, higher audio and video transmission quality can be obtained.
AV cable
AV cable is the abbreviation of the Audio Cable and Video Cable. Whether it is audio cable or video cable, it can effectively eliminate foreign electromagnetic interference and can transmit signals with a high -quality line that can be transmitted original. This is the oldest transmission simulation video signal. The ends are the lotus head (RCA head), and the DVD machine and the TV will have this interface.
AV interface: The AV interface is widely used in TV and DVD, and is one of the necessary interfaces for each TV. This line is generally not required during decoration. The AV interface is currently some vehicle GPS devices. Through the sound and video terminal carried by itself, connecting the AV line to the output of its own data image sound, etc., to other display and audiovisual devices, such as external displays or headphones. The terminal, the S-Video terminal, the headset interface, etc. It can be regarded as a improved interface for TV, which is very different in appearance. It is divided into 3 lines, namely: audio interface (red and white line, forming left and right channels) and video interface (yellow).
Ovisons that are still mixed with brightness and chroma because the AV output is still a video signal, so the device still needs to be separated from the brightness and color separation of the device, and the decoding can be used to imagine. This approach will inevitably cause losses to the quality, so the picture quality of the AV interface is still not satisfactory. It is very simple in terms of connection. Just connect the interface of the three colors of AV cables with the three colors of the TV.
In general, the AV interface realizes the separation of audio and video, and can avoid the decline in the image quality caused by the interference of audio and video in terms of imaging. The AV interface is widely used in the connection between TV and DVD, and is one of the necessary interfaces for each TV.
S terminal line
The video cable that has appeared better than the AV line in previous years. The interface is round and similar to the PS2 mouse head. Generally speaking, this interface is widely used in videos and game devices such as DVD, PS2, Xbox, NGC. The S terminals no longer mix the color and brightness in signal transmission. Instead, signal transmission is separated. It is a “dual -scale video interface”.
S terminals usually have five core interfaces, consisting of two video brightness signals, two video color signals, and a total of five core wires of the road public shielding ground wire (in fact, there is a supporting brightness and color contrast separator with its facilities. To. It is not difficult to see from its structure that it is a device used to separate brightness and chroma.
The color difference line
The videos with better quality than S terminal lines, transmitting analog signals, should be the best video cable in the analog signal, the new DVD machine, the new DVD machine, High -end TV and home projectors have this interface.
The color difference component interface This interface can be used on DVD, PS2, Xbox, NGC and other videos and game devices. The quality of the picture must be stronger than the S terminal. The color difference is divided into line -by -line and interlaced display. Generally speaking, there are several letters on the component interface to indicate row and interval. It is expressed by YCBCR, and it is expressed by YPBPR. If the TV only has YCBCR component terminals, it means that the TV cannot support the ryle component. Essence
VGA cable
VGA cable is also an analog signal video cable. It is most common in computers. The signal is different from the color difference line. Signals, the redundant of the color difference line will be larger, and after the resolution exceeds 1600X1200, the VGA cable is slightly more quality, and the length of the length will cause snowflakes. Why does home theater mentioned the VGA cable? That’s because HTPC enters the home theater, and all projectors have a VGA interface. HD VGA cable HD VGA cable.
VGA interface is also called (s-dub), which is derived from the input interface of the computer. Since the CRT display cannot directly accept the input of the digital signal, the graphics card can only be used to obtain the picture to get the emulating signal input display. VGA is the interface of the simulation signal to the display. There are 15 stitches on the VGA interface, divided into three rows, each in five. The VGA interface is the most widely used interface type on the graphics card, and most of the graphics cards have this interface.
can the LCD TV of the VGA interface be a display? The VGA interface is the interface that outputs an analog signal on the graphics card. VGA (Video Graphics Array) interface, also known as D-SUB interface. Although the LCD display can directly receive digital signals, many low -end products use VGA interfaces in order to match the VGA interface graphics card. The VGA interface is a D -type interface with a total of 15 stitches on it, divided into three rows, each row of five. The VGA interface is the most widely used interface type on the graphics card, and most of the graphics cards have this interface. If you want to connect to the TV with a computer, to buy a VGA cable for LCD display, you have to adjust the resolution of the computer, and the screen in the computer can appear on the TV.
DVI cable
DVI cable full name Digital visual interface, the latest digital video cable, DVI interface and VGA are the most commonly used interfaces in the computer. Unlike VGA, DVI is an interface transmitted by full digital transmission. Therefore, the picture quality guarantees completely non -compressed transmission.
DVI cable interface transmission speed is as high as 8Gbps, and its interface has 24 1 (DVI-D), 24 5 (DVI-I), DVI-I supports the same transmission number (DVI-D) and analog signals at the same time (VGA signal). Generally speaking, HTPC’s graphics card is generally DVI-I interface, while the LCD display, the projector is the DVI-D interface. Although the interface of DVI-I is compatible with the DVI-D interface, the plug of DVI-I plug is Can’t insert the DVI-D interface, why? There are four more needles. But we still have a way to use a DVI-I to DVI-D converter.
Where are the types of audio cables?
The speaker cable is used to connect the amplifier and speakers. Among them, the circulating current signal is much larger than the video cable and audio cable mentioned earlier. The key is to reduce its resistance. Because the output resistance of the modern amplifier is very low, the requirements for the speaker line have also increased. The wires are available from pure copper to silver wires. A kind of speaker line that is more expensive is an oxygen copper speaker. The main feature is that the conductivity is good and the resistivity is low. few.
The classification of home speakers is divided into home theater speakers (generally 6) and HIFI music speakers (two), which is generally called fever speaker. HIFI speakers are used to restore recording sound fields in High -fidelity, so it is enough to ensure the loss of damage to the audio signal.
The general transmission cable has different impedance to different frequency signals. This characteristic is that the sound is blurred in the restoration of the sound. To this end The characteristic of the species is that the signal is divided into two channels according to the frequency level. The outer line with a certain thickness through the signal of 5kHz or more, and the signal below 5kHz transmits through the inner layer of the line. This greatly improves the frequency characteristics of the transmission line. Make the sound of the replacement clear and transparent. However, the price is also very expensive. The brands mentioned above are mostly produced fever sounds.
The input and output port of the speaker interface is divided into two types of simulation ports and digital ports. What form of audio sockets to choose when buying audio interfaces, first of all, you need to consider matching issues. If the device connected to the audio interface is simulated, then the audio interface of the simulation socket should be selected. If you connect to the audio interface with digital devices, it is best to use the audio interface of the digital port.
The match in this form is very important. At present, some users use the digital mixer, but choose the audio interface of the simulation port for their computer audio workstations. The number of times of the mold and mode/number conversion makes the signal be applied for unnecessary losses in the transmission process, and the simulation audio cable is used too much (especially these analog audio cables are wrapped together), which will also make the cables mutual mutual Interference, generating noise.
Audio cable: A set of audio cables are often two, divided into two left and right channels, and both ends of the line are lotus head (RCA head). The audio cable does not need to be considered when wiring, because the sound source equipment and amplifiers are often put together. These cables are short, and the later configuration can be configured. rn 同轴线: 用于传输多声道信号(杜比AC-3或者DTS信号),与音频线类似,因信号量大,接头及线都比普通音频线粗一些,一般用于Connect DVD machine and amplifier.
Fiber line: It is also used to transmit multi-channel signals (Dolby AC-3 or DTS signals) for connecting DVD machines and amplifiers.
The microphone line: a two -core coaxial line for connecting power amplifiers and microphones. At present, the rise of wireless microphones, if it is not for special considerations, can not be considered during wiring, and the application of wireless microphone will definitely become wider and wider in the future.