The main work of the decoder in the CD player is to regenerate the high frequency data into analog signals. Nowadays, the technology is completed by using a microprocessor, and some are made by LSI (Large Body Circuit) technology. Nowadays, it is more for a certain The ASIC (Customer-Customized IC) IC developed by the model makes the circuit architecture complex, but the volume and wiring are greatly reduced. The magic of modern technology is amazing. In the early SONY CD-ROM, three microprocessors are usually used to complete the above operations. They are all large ICs. These three LSIs are equivalent to the control circuit composed of five hundred general ICs, and are manufactured and reduced in cost. Only developed these three LSIICs. Among the three ICs, one is responsible for EFM data demodulation, subcode signal demodulation, frame synchronization signal detection, protection and interpolation. The other is responsible for generating the RAM control signal, the interpolation line, the D/A conversion interface, and generating the CLV reference signal (CLV is the linear speed). The remaining one does the work of error detection and correction (CIRC decoding).
The following is a brief description of the functions of the various blocks:
EFM (Eight to Fourteen Modulation) demodulation is the conversion of fourteen-bit channel data back to eight-bit tag data, which is done during CD production. Frequency generation and synchronous detection are used for system frequency generation and synchronous control, so that the system can operate normally. The EFM demodulated signal is decoded into a group of eight-bit symbols, and the sound data is sent to the error corrector, and the timing and control logic provides the necessary frequency signals, symbols, and frame synchronization signals (Frame Sync Signal). After the error correction work is completed, the correct sound data is transmitted to the interpolation and mute circuit together with a special flag signal, and the flag signal is used to specify whether a hidden action is activated or not. The term RAM is mentioned above. The use of RAM (Random Access Memory) in CD players has three main purposes: de-insertion, correction buffering, and jitter absorption. Therefore, in the CIRC circuit, if there are two consecutive words (4 marks) in the error data, the data interpolation action (the same data as the previous data is used for interpolation) is automatically performed, and the data is moved in and out. The storage, etc. must use the RAM component.
The mute circuit is used to reduce the noise noise, which may come from the erroneous data sampling of the output of the error correction IC. After that; the sound data is sequentially entered in a serial manner and Descrambled, and then divided into left and right channel samples, which are done by several multiplexers. The divided digital signal is a continuous sixteen-bit word that appears at a frequency of 44,100 words per second, which is why the sampling frequency of the CD is 44.1 kHz. At this time, the DAC (Digital to Analog Converter) of each channel generates a current value of a certain length (time) for each digital word, and keeps this current value until the next word comes in. These currents form an approximate stepped curve of the analog signal waveform. However, since the generated order wave far exceeds the bandwidth of the analog sound of 20Hz to 20KHz, it is suppressed (filtered) by a set of low-pass filters, and because the filter is lower than that in the CD system. The effect of the maximum sound signal level above 50dB is difficult to achieve with analog filters, so digital filters are used to do this, and the resulting signal is the analog signal we can hear.
Based on the above description, the reader should have a deeper understanding of the function of the microprocessor in the CD, and the control and display parts. Because of the design function of each manufacturer, the display methods are different, and I will not say more here. Because I have to complete the internal movements of the CD, I have difficulty in my own involvement, and if I want to go deeper into it, it may be a book. So when I talk about it, I think it should come to an end. Next time I will Talking about the D/A circuit of the CD turntable and its characteristics, this aspect has a decisive influence on the sound quality of a CD turntable. Therefore, I will talk about it in a simple and simple way. The main work of the decoder in the CD player is to regenerate the high frequency data into analog signals. Nowadays, the technology is completed by using a microprocessor, and some are made by LSI (Large Body Circuit) technology. Nowadays, it is more for a certain The ASIC (Customer-Customized IC) IC developed by the model makes the circuit architecture complex, but the volume and wiring are greatly reduced. The magic of modern technology is amazing. In the early SONY CD-ROM, three microprocessors are usually used to complete the above operations. They are all large ICs. These three LSIs are equivalent to the control circuit composed of five hundred general ICs, and are manufactured and reduced in cost. Only developed these three LSIICs. Among the three ICs, one is responsible for EFM data demodulation, subcode signal demodulation, frame synchronization signal detection, protection and interpolation. The other is responsible for generating the RAM control signal, the interpolation line, the D/A conversion interface, and generating the CLV reference signal (CLV is the linear speed). The remaining one does the work of error detection and correction (CIRC decoding).
The following is a brief description of the functions of the various blocks:
EFM (Eight to Fourteen Modulation) demodulation is the conversion of fourteen-bit channel data back to eight-bit tag data, which is done during CD production. Frequency generation and synchronous detection are used for system frequency generation and synchronous control, so that the system can operate normally. The EFM demodulated signal is decoded into a group of eight-bit symbols, and the sound data is sent to the error corrector, and the timing and control logic provides the necessary frequency signals, symbols, and frame synchronization signals (Frame Sync Signal). After the error correction work is completed, the correct sound data is transmitted to the interpolation and mute circuit together with a special flag signal, and the flag signal is used to specify whether a hidden action is activated or not. The term RAM is mentioned above. The use of RAM (Random Access Memory) in CD players has three main purposes: de-insertion, correction buffering, and jitter absorption. Therefore, in the CIRC circuit, if there are two consecutive words (4 marks) in the error data, the data interpolation action (the same data as the previous data is used for interpolation) is automatically performed, and the data is moved in and out. The storage, etc. must use the RAM component.
The mute circuit is used to reduce the noise noise, which may come from the erroneous data sampling of the output of the error correction IC. After that; the sound data is sequentially entered in a serial manner and Descrambled, and then divided into left and right channel samples, which are done by several multiplexers. The divided digital signal is a continuous sixteen-bit word that appears at a frequency of 44,100 words per second, which is why the sampling frequency of the CD is 44.1 kHz. At this time, the DAC (Digital to Analog Converter) of each channel generates a current value of a certain length (time) for each digital word, and keeps this current value until the next word comes in. These currents form an approximate stepped curve of the analog signal waveform. However, since the generated order wave far exceeds the bandwidth of the analog sound of 20Hz to 20KHz, it is suppressed (filtered) by a set of low-pass filters, and because the filter is lower than that in the CD system. The effect of the maximum sound signal level above 50dB is difficult to achieve with analog filters, so digital filters are used to do this, and the resulting signal is the analog signal we can hear.
Based on the above description, the reader should have a deeper understanding of the function of the microprocessor in the CD, and the control and display parts. Because of the design function of each manufacturer, the display methods are different, and I will not say more here. Because I have to complete the internal movements of the CD, I have difficulty in my own involvement, and if I want to go deeper into it, it may be a book. So when I talk about it, I think it should come to an end. Next time I will Talking about the D/A circuit of the CD turntable and its characteristics, this aspect has a decisive influence on the sound quality of a CD turntable. Therefore, I will talk about it in a simple and simple way. The main work of the decoder in the CD player is to regenerate the high frequency data into analog signals. Nowadays, the technology is completed by using a microprocessor, and some are made by LSI (Large Body Circuit) technology. Nowadays, it is more for a certain The ASIC (Customer-Customized IC) IC developed by the model makes the circuit architecture complex, but the volume and wiring are greatly reduced. The magic of modern technology is amazing. In the early SONY CD-ROM, three microprocessors are usually used to complete the above operations. They are all large ICs. These three LSIs are equivalent to the control circuit composed of five hundred general ICs, and are manufactured and reduced in cost. Only developed these three LSIICs. Among the three ICs, one is responsible for EFM data demodulation, subcode signal demodulation, frame synchronization signal detection, protection and interpolation. The other is responsible for generating the RAM control signal, the interpolation line, the D/A conversion interface, and generating the CLV reference signal (CLV is the linear speed). The remaining one does the work of error detection and correction (CIRC decoding).
The following is a brief description of the functions of the various blocks:
EFM (Eight to Fourteen Modulation) demodulation is the conversion of fourteen-bit channel data back to eight-bit tag data, which is done during CD production. Frequency generation and synchronous detection are used for system frequency generation and synchronous control, so that the system can operate normally. The EFM demodulated signal is decoded into a group of eight-bit symbols, and the sound data is sent to the error corrector, and the timing and control logic provides the necessary frequency signals, symbols, and frame synchronization signals (Frame Sync Signal). After the error correction work is completed, the correct sound data is transmitted to the interpolation and mute circuit together with a special flag signal, and the flag signal is used to specify whether a hidden action is activated or not. The term RAM is mentioned above. The use of RAM (Random Access Memory) in CD players has three main purposes: de-insertion, correction buffering, and jitter absorption. Therefore, in the CIRC circuit, if there are two consecutive words (4 marks) in the error data, the data interpolation action (the same data as the previous data is used for interpolation) is automatically performed, and the data is moved in and out. The storage, etc. must use the RAM component.
The mute circuit is used to reduce the noise noise, which may come from the erroneous data sampling of the output of the error correction IC. After that; the sound data is sequentially entered in a serial manner and Descrambled, and then divided into left and right channel samples, which are done by several multiplexers. The divided digital signal is a continuous sixteen-bit word that appears at a frequency of 44,100 words per second, which is why the sampling frequency of the CD is 44.1 kHz. At this time, the DAC (Digital to Analog Converter) of each channel generates a current value of a certain length (time) for each digital word, and keeps this current value until the next word comes in. These currents form an approximate stepped curve of the analog signal waveform. However, since the generated order wave far exceeds the bandwidth of the analog sound of 20Hz to 20KHz, it is suppressed (filtered) by a set of low-pass filters, and because the filter is lower than that in the CD system. The effect of the maximum sound signal level above 50dB is difficult to achieve with analog filters, so digital filters are used to do this, and the resulting signal is the analog signal we can hear.
Based on the above description, the reader should have a deeper understanding of the function of the microprocessor in the CD, and the control and display parts. Because of the design function of each manufacturer, the display methods are different, and I will not say more here. Because I have to complete the internal movements of the CD, I have difficulty in my own involvement, and if I want to go deeper into it, it may be a book. So when I talk about it, I think it should come to an end. Next time I will Talking about the D/A circuit of the CD turntable and its characteristics, this aspect has a decisive influence on the sound quality of a CD turntable. Therefore, I will talk about it in a simple and simple way.
The following is a brief description of the functions of the various blocks:
EFM (Eight to Fourteen Modulation) demodulation is the conversion of fourteen-bit channel data back to eight-bit tag data, which is done during CD production. Frequency generation and synchronous detection are used for system frequency generation and synchronous control, so that the system can operate normally. The EFM demodulated signal is decoded into a group of eight-bit symbols, and the sound data is sent to the error corrector, and the timing and control logic provides the necessary frequency signals, symbols, and frame synchronization signals (Frame Sync Signal). After the error correction work is completed, the correct sound data is transmitted to the interpolation and mute circuit together with a special flag signal, and the flag signal is used to specify whether a hidden action is activated or not. The term RAM is mentioned above. The use of RAM (Random Access Memory) in CD players has three main purposes: de-insertion, correction buffering, and jitter absorption. Therefore, in the CIRC circuit, if there are two consecutive words (4 marks) in the error data, the data interpolation action (the same data as the previous data is used for interpolation) is automatically performed, and the data is moved in and out. The storage, etc. must use the RAM component.
The mute circuit is used to reduce the noise noise, which may come from the erroneous data sampling of the output of the error correction IC. After that; the sound data is sequentially entered in a serial manner and Descrambled, and then divided into left and right channel samples, which are done by several multiplexers. The divided digital signal is a continuous sixteen-bit word that appears at a frequency of 44,100 words per second, which is why the sampling frequency of the CD is 44.1 kHz. At this time, the DAC (Digital to Analog Converter) of each channel generates a current value of a certain length (time) for each digital word, and keeps this current value until the next word comes in. These currents form an approximate stepped curve of the analog signal waveform. However, since the generated order wave far exceeds the bandwidth of the analog sound of 20Hz to 20KHz, it is suppressed (filtered) by a set of low-pass filters, and because the filter is lower than that in the CD system. The effect of the maximum sound signal level above 50dB is difficult to achieve with analog filters, so digital filters are used to do this, and the resulting signal is the analog signal we can hear.
Based on the above description, the reader should have a deeper understanding of the function of the microprocessor in the CD, and the control and display parts. Because of the design function of each manufacturer, the display methods are different, and I will not say more here. Because I have to complete the internal movements of the CD, I have difficulty in my own involvement, and if I want to go deeper into it, it may be a book. So when I talk about it, I think it should come to an end. Next time I will Talking about the D/A circuit of the CD turntable and its characteristics, this aspect has a decisive influence on the sound quality of a CD turntable. Therefore, I will talk about it in a simple and simple way. The main work of the decoder in the CD player is to regenerate the high frequency data into analog signals. Nowadays, the technology is completed by using a microprocessor, and some are made by LSI (Large Body Circuit) technology. Nowadays, it is more for a certain The ASIC (Customer-Customized IC) IC developed by the model makes the circuit architecture complex, but the volume and wiring are greatly reduced. The magic of modern technology is amazing. In the early SONY CD-ROM, three microprocessors are usually used to complete the above operations. They are all large ICs. These three LSIs are equivalent to the control circuit composed of five hundred general ICs, and are manufactured and reduced in cost. Only developed these three LSIICs. Among the three ICs, one is responsible for EFM data demodulation, subcode signal demodulation, frame synchronization signal detection, protection and interpolation. The other is responsible for generating the RAM control signal, the interpolation line, the D/A conversion interface, and generating the CLV reference signal (CLV is the linear speed). The remaining one does the work of error detection and correction (CIRC decoding).
The following is a brief description of the functions of the various blocks:
EFM (Eight to Fourteen Modulation) demodulation is the conversion of fourteen-bit channel data back to eight-bit tag data, which is done during CD production. Frequency generation and synchronous detection are used for system frequency generation and synchronous control, so that the system can operate normally. The EFM demodulated signal is decoded into a group of eight-bit symbols, and the sound data is sent to the error corrector, and the timing and control logic provides the necessary frequency signals, symbols, and frame synchronization signals (Frame Sync Signal). After the error correction work is completed, the correct sound data is transmitted to the interpolation and mute circuit together with a special flag signal, and the flag signal is used to specify whether a hidden action is activated or not. The term RAM is mentioned above. The use of RAM (Random Access Memory) in CD players has three main purposes: de-insertion, correction buffering, and jitter absorption. Therefore, in the CIRC circuit, if there are two consecutive words (4 marks) in the error data, the data interpolation action (the same data as the previous data is used for interpolation) is automatically performed, and the data is moved in and out. The storage, etc. must use the RAM component.
The mute circuit is used to reduce the noise noise, which may come from the erroneous data sampling of the output of the error correction IC. After that; the sound data is sequentially entered in a serial manner and Descrambled, and then divided into left and right channel samples, which are done by several multiplexers. The divided digital signal is a continuous sixteen-bit word that appears at a frequency of 44,100 words per second, which is why the sampling frequency of the CD is 44.1 kHz. At this time, the DAC (Digital to Analog Converter) of each channel generates a current value of a certain length (time) for each digital word, and keeps this current value until the next word comes in. These currents form an approximate stepped curve of the analog signal waveform. However, since the generated order wave far exceeds the bandwidth of the analog sound of 20Hz to 20KHz, it is suppressed (filtered) by a set of low-pass filters, and because the filter is lower than that in the CD system. The effect of the maximum sound signal level above 50dB is difficult to achieve with analog filters, so digital filters are used to do this, and the resulting signal is the analog signal we can hear.
Based on the above description, the reader should have a deeper understanding of the function of the microprocessor in the CD, and the control and display parts. Because of the design function of each manufacturer, the display methods are different, and I will not say more here. Because I have to complete the internal movements of the CD, I have difficulty in my own involvement, and if I want to go deeper into it, it may be a book. So when I talk about it, I think it should come to an end. Next time I will Talking about the D/A circuit of the CD turntable and its characteristics, this aspect has a decisive influence on the sound quality of a CD turntable. Therefore, I will talk about it in a simple and simple way. The main work of the decoder in the CD player is to regenerate the high frequency data into analog signals. Nowadays, the technology is completed by using a microprocessor, and some are made by LSI (Large Body Circuit) technology. Nowadays, it is more for a certain The ASIC (Customer-Customized IC) IC developed by the model makes the circuit architecture complex, but the volume and wiring are greatly reduced. The magic of modern technology is amazing. In the early SONY CD-ROM, three microprocessors are usually used to complete the above operations. They are all large ICs. These three LSIs are equivalent to the control circuit composed of five hundred general ICs, and are manufactured and reduced in cost. Only developed these three LSIICs. Among the three ICs, one is responsible for EFM data demodulation, subcode signal demodulation, frame synchronization signal detection, protection and interpolation. The other is responsible for generating the RAM control signal, the interpolation line, the D/A conversion interface, and generating the CLV reference signal (CLV is the linear speed). The remaining one does the work of error detection and correction (CIRC decoding).
The following is a brief description of the functions of the various blocks:
EFM (Eight to Fourteen Modulation) demodulation is the conversion of fourteen-bit channel data back to eight-bit tag data, which is done during CD production. Frequency generation and synchronous detection are used for system frequency generation and synchronous control, so that the system can operate normally. The EFM demodulated signal is decoded into a group of eight-bit symbols, and the sound data is sent to the error corrector, and the timing and control logic provides the necessary frequency signals, symbols, and frame synchronization signals (Frame Sync Signal). After the error correction work is completed, the correct sound data is transmitted to the interpolation and mute circuit together with a special flag signal, and the flag signal is used to specify whether a hidden action is activated or not. The term RAM is mentioned above. The use of RAM (Random Access Memory) in CD players has three main purposes: de-insertion, correction buffering, and jitter absorption. Therefore, in the CIRC circuit, if there are two consecutive words (4 marks) in the error data, the data interpolation action (the same data as the previous data is used for interpolation) is automatically performed, and the data is moved in and out. The storage, etc. must use the RAM component.
The mute circuit is used to reduce the noise noise, which may come from the erroneous data sampling of the output of the error correction IC. After that; the sound data is sequentially entered in a serial manner and Descrambled, and then divided into left and right channel samples, which are done by several multiplexers. The divided digital signal is a continuous sixteen-bit word that appears at a frequency of 44,100 words per second, which is why the sampling frequency of the CD is 44.1 kHz. At this time, the DAC (Digital to Analog Converter) of each channel generates a current value of a certain length (time) for each digital word, and keeps this current value until the next word comes in. These currents form an approximate stepped curve of the analog signal waveform. However, since the generated order wave far exceeds the bandwidth of the analog sound of 20Hz to 20KHz, it is suppressed (filtered) by a set of low-pass filters, and because the filter is lower than that in the CD system. The effect of the maximum sound signal level above 50dB is difficult to achieve with analog filters, so digital filters are used to do this, and the resulting signal is the analog signal we can hear.
Based on the above description, the reader should have a deeper understanding of the function of the microprocessor in the CD, and the control and display parts. Because of the design function of each manufacturer, the display methods are different, and I will not say more here. Because I have to complete the internal movements of the CD, I have difficulty in my own involvement, and if I want to go deeper into it, it may be a book. So when I talk about it, I think it should come to an end. Next time I will Talking about the D/A circuit of the CD turntable and its characteristics, this aspect has a decisive influence on the sound quality of a CD turntable. Therefore, I will talk about it in a simple and simple way.
Plastic Jar Food Processors have light weight and easy to carry. And their price is cheaper than Glass Jar Food Processors, cost-effective.
Description for Plastic Jar Food Processors
350W/450W/600W
Including juicer, 1.25L plastic jar blender, chopper and grinder
2 speeds wth pulse
Carton box: 49.5*44.5*61cm 4pcs/ctn
20'GP: 912pcs 40'HQ: 2104pcs
Plastic Jar Food Processors
Plastic Jar Food Processors,Baby Food Processor,Plastic Jar Processors,Plastic Food Processors
Flying Electronic Co., Ltd , http://www.flyingelectronic.com