A Transistor Ladder Voltage-Controlled Filter Implemented on a Field Programmable Analog Array
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ST. H.. Nease, AA. D.. Lanterman, and JE. O.. Hasler, "A Transistor Ladder Voltage-Controlled Filter Implemented on a Field Programmable Analog Array," J. Audio Eng. Soc., vol. 62, no. 9, pp. 611-618, (2014 September.). doi: https://doi.org/10.17743/jaes.2014.0032
ST. H.. Nease, AA. D.. Lanterman, and JE. O.. Hasler, "A Transistor Ladder Voltage-Controlled Filter Implemented on a Field Programmable Analog Array," J. Audio Eng. Soc., vol. 62 Issue 9 pp. 611-618, (2014 September.). doi: https://doi.org/10.17743/jaes.2014.0032
Abstract: Because some audio enthusiasts argue that analog systems have more warmth than digital implementations, analog circuits are still of interest in music synthesis. The recent development of Field-Programmable Analog Arrays (FPAAs) offers a way to connect analog components together in an arbitrary fashion on a mixed-signal CMOS chip. This allows for the creation of analog synthesizers with the ease of rapid reconfigurability, a property associated with their digital counterpart. The authors use an FPAA to implement a particular voltage-controlled filter, the transistor ladder. The FPAA consists of three primary blocks: (1) the Computational Analog Block (CAB), a physical grouping of analog circuits that serve as computation elements; (2) the Switch Matrix (SM) that allows local routing between elements inside a CAB, as well as routing between CABs; and (3) the Programmer, which selects a floating-gate device in the SM and allows each devices to be turned on, off, or in between. Multiple CABs and SMs are arrayed in a single FPAA, allowing for large, reprogrammable analog systems.
@article{nease2014a,
author={nease, stephen h. and lanterman, aaron d. and hasler, jennifer o.},
journal={journal of the audio engineering society},
title={a transistor ladder voltage-controlled filter implemented on a field programmable analog array},
year={2014},
volume={62},
number={9},
pages={611-618},
doi={https://doi.org/10.17743/jaes.2014.0032},
month={september},}
@article{nease2014a,
author={nease, stephen h. and lanterman, aaron d. and hasler, jennifer o.},
journal={journal of the audio engineering society},
title={a transistor ladder voltage-controlled filter implemented on a field programmable analog array},
year={2014},
volume={62},
number={9},
pages={611-618},
doi={https://doi.org/10.17743/jaes.2014.0032},
month={september},
abstract={because some audio enthusiasts argue that analog systems have more warmth than digital implementations, analog circuits are still of interest in music synthesis. the recent development of field-programmable analog arrays (fpaas) offers a way to connect analog components together in an arbitrary fashion on a mixed-signal cmos chip. this allows for the creation of analog synthesizers with the ease of rapid reconfigurability, a property associated with their digital counterpart. the authors use an fpaa to implement a particular voltage-controlled filter, the transistor ladder. the fpaa consists of three primary blocks: (1) the computational analog block (cab), a physical grouping of analog circuits that serve as computation elements; (2) the switch matrix (sm) that allows local routing between elements inside a cab, as well as routing between cabs; and (3) the programmer, which selects a floating-gate device in the sm and allows each devices to be turned on, off, or in between. multiple cabs and sms are arrayed in a single fpaa, allowing for large, reprogrammable analog systems.},}
TY - report
TI - A Transistor Ladder Voltage-Controlled Filter Implemented on a Field Programmable Analog Array
SP - 611
EP - 618
AU - Nease, Stephen H.
AU - Lanterman, Aaron D.
AU - Hasler, Jennifer O.
PY - 2014
JO - Journal of the Audio Engineering Society
IS - 9
VO - 62
VL - 62
Y1 - September 2014
TY - report
TI - A Transistor Ladder Voltage-Controlled Filter Implemented on a Field Programmable Analog Array
SP - 611
EP - 618
AU - Nease, Stephen H.
AU - Lanterman, Aaron D.
AU - Hasler, Jennifer O.
PY - 2014
JO - Journal of the Audio Engineering Society
IS - 9
VO - 62
VL - 62
Y1 - September 2014
AB - Because some audio enthusiasts argue that analog systems have more warmth than digital implementations, analog circuits are still of interest in music synthesis. The recent development of Field-Programmable Analog Arrays (FPAAs) offers a way to connect analog components together in an arbitrary fashion on a mixed-signal CMOS chip. This allows for the creation of analog synthesizers with the ease of rapid reconfigurability, a property associated with their digital counterpart. The authors use an FPAA to implement a particular voltage-controlled filter, the transistor ladder. The FPAA consists of three primary blocks: (1) the Computational Analog Block (CAB), a physical grouping of analog circuits that serve as computation elements; (2) the Switch Matrix (SM) that allows local routing between elements inside a CAB, as well as routing between CABs; and (3) the Programmer, which selects a floating-gate device in the SM and allows each devices to be turned on, off, or in between. Multiple CABs and SMs are arrayed in a single FPAA, allowing for large, reprogrammable analog systems.
Because some audio enthusiasts argue that analog systems have more warmth than digital implementations, analog circuits are still of interest in music synthesis. The recent development of Field-Programmable Analog Arrays (FPAAs) offers a way to connect analog components together in an arbitrary fashion on a mixed-signal CMOS chip. This allows for the creation of analog synthesizers with the ease of rapid reconfigurability, a property associated with their digital counterpart. The authors use an FPAA to implement a particular voltage-controlled filter, the transistor ladder. The FPAA consists of three primary blocks: (1) the Computational Analog Block (CAB), a physical grouping of analog circuits that serve as computation elements; (2) the Switch Matrix (SM) that allows local routing between elements inside a CAB, as well as routing between CABs; and (3) the Programmer, which selects a floating-gate device in the SM and allows each devices to be turned on, off, or in between. Multiple CABs and SMs are arrayed in a single FPAA, allowing for large, reprogrammable analog systems.
Authors:
Nease, Stephen H.; Lanterman, Aaron D.; Hasler, Jennifer O.
Affiliation:
School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA, USA JAES Volume 62 Issue 9 pp. 611-618; September 2014
Publication Date:
October 2, 2014Import into BibTeX
Permalink:
http://www.aes.org/e-lib/browse.cfm?elib=17390