Converting circuit with control circuit to detect signals input into the converting circuit, and communication device
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United States of America Patent
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Mar 1, 2016
Grant Date -
May 28, 2015
app pub date -
Aug 19, 2014
filing date -
Nov 27, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A converting circuit and a communication device are provided. The converting circuit includes: a sample hold circuit for receiving an analog signal; a Digital to Analog Converter (DAC); a comparator being connected with an output end of the sample hold circuit and an output end of the DAC; and a control circuit being connected with an output end of the comparator, wherein when the sample hold circuit receives an analog signal, the control circuit controls the sample hold circuit and the comparator to work, controls an output of the DAC based on an output of the comparator, and outputs a corresponding digital signal; and when the control circuit detects a digital signal is input, the control circuit controls the DAC to convert the digital signal into an corresponding analog signal and output the corresponding analog signal. The converting circuit can reduce chip area and chip cost.
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