Friday, May 22, 2015

Convert Analog Audio to Digital Audio using Flash ADC207

Eltronicschool. - We think that you very familiar with analog to digital converter system and called with ADC. ADC can convert analog signal to digital signal to process with digital processing like in computer and other devices. 

In this article we will show you one ADC that special designed for audio signal processing using flash ADC207. This article will describe global information about this ADC as like the features of ADC207.

Architecture of ADC207

ADC207 Architecture

ADC207 is one type of ADC is designed specifically for processing audio signals into analog audio signals in digital format. ADC207 has a high conversion speed and use a high sampling frequency so that the quality of the data conversion result to be better. ADC207 is the first ADC that uses Flash Converting An advandced High Speed ​​VLSI 1.2 micron CMOS process. The process that is able to do ADC207 as mentioned earlier is very severe and make it unique ADC207. The process speed ADC has good linearity and has a stable work temperature. ADC207 has a low power consumption of 250 mW. 

ADC is working with +5 Vdc voltage source and at a frequency of 20 MHz. ADC207 have a small sampling time is 12 nS, thus making more ideal sampling results. ADC207 has 128 comparators with features auto balanced on each conversion that serves to offset the effects of temperature and existing dinamaik. Resistor ladder at this ADC207 midpoint connected to an external voltage source and function in the conversion of 7-bit linearity. ADC207 has 3 levels of output that is easy to connect with external components.

Features of ADC207  
  • 7 bit flash A / D Converter
  • Sampling frequency 20 MHz
  • Low power consumption (250mW)
  • VCC 5 Vdc
  • 1.2 micron CMOS technology
  • 7 bits to gate 3 at the output level and overflow bits

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