Difference between revisions of "Design of a Digital Audio Module for Ultra-Low Power Cellular Applications"
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==Short Description== | ==Short Description== | ||
− | Cellular audio applications depend on an audio interface to connect a microphone/speaker. Acoustic waves, usually voice, are captured by a microphone, amplified and subsequently sampled into the digital domain by an Analog to Digital Converter (ADC). In the other direction a stream of digital audio samples is first mapped into the analog domain by | + | Cellular audio applications depend on an audio interface to connect a microphone/speaker. Acoustic waves, usually voice, are captured by a microphone, amplified, and subsequently sampled into the digital domain by an Analog to Digital Converter (ADC). In the other direction a stream of digital audio samples is first mapped into the analog domain by an Digital to Analog Converter (DAC) and subsequently amplified to drive a speaker, where the analog signal is translated into acoustic waves. |
− | A huge variety of integrated audio modules such as [1] exist on the marked. In cellular | + | A huge variety of integrated audio modules such as [1] exist on the marked. In cellular devices an audio chip can be placed between microphone/speaker and a cellular modem. However, emerging applications, such as emergency watches [2] or ambulance drones [3], require highly integrated components due to their low footprint and extremely low power consumption. |
Highly integrated cellular modems and ADC/DAC modules are under active research at the institute. In this project, the missing link to a microphone/speaker connection shall be designed. To this end, a switching amplifier supporting all common cellular audio standards (see [4,5]) shall be designed and integrated on a chip. This is a perfect learning opportunity for analog integrated circuits design. | Highly integrated cellular modems and ADC/DAC modules are under active research at the institute. In this project, the missing link to a microphone/speaker connection shall be designed. To this end, a switching amplifier supporting all common cellular audio standards (see [4,5]) shall be designed and integrated on a chip. This is a perfect learning opportunity for analog integrated circuits design. | ||
− | ===Status: | + | |
− | + | ===Status: Obsolete === | |
: Contact: [[:User:Weberbe|Benjamin Weber]] | : Contact: [[:User:Weberbe|Benjamin Weber]] | ||
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==References== | ==References== | ||
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[5] [http://www.3gpp.org/DynaReport/26-series.htm 3GPP Codecs Specifications; 3G and beyond/GSM] | [5] [http://www.3gpp.org/DynaReport/26-series.htm 3GPP Codecs Specifications; 3G and beyond/GSM] | ||
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[[Category:Analog]] | [[Category:Analog]] | ||
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[[Category:Master Thesis]] | [[Category:Master Thesis]] | ||
+ | [[Category:Telecommunications]] | ||
[[Category:Audio]] | [[Category:Audio]] | ||
[[Category:Weberbe]] | [[Category:Weberbe]] | ||
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Latest revision as of 17:15, 17 December 2015
Short Description
Cellular audio applications depend on an audio interface to connect a microphone/speaker. Acoustic waves, usually voice, are captured by a microphone, amplified, and subsequently sampled into the digital domain by an Analog to Digital Converter (ADC). In the other direction a stream of digital audio samples is first mapped into the analog domain by an Digital to Analog Converter (DAC) and subsequently amplified to drive a speaker, where the analog signal is translated into acoustic waves.
A huge variety of integrated audio modules such as [1] exist on the marked. In cellular devices an audio chip can be placed between microphone/speaker and a cellular modem. However, emerging applications, such as emergency watches [2] or ambulance drones [3], require highly integrated components due to their low footprint and extremely low power consumption.
Highly integrated cellular modems and ADC/DAC modules are under active research at the institute. In this project, the missing link to a microphone/speaker connection shall be designed. To this end, a switching amplifier supporting all common cellular audio standards (see [4,5]) shall be designed and integrated on a chip. This is a perfect learning opportunity for analog integrated circuits design.
Status: Obsolete
- Contact: Benjamin Weber
References
[3] Drones For Good