dc.contributor.advisor | Khatri, Sunil, P | |
dc.creator | Paul, Suganth | |
dc.date.accessioned | 2010-01-15T00:04:30Z | |
dc.date.accessioned | 2010-01-16T00:18:58Z | |
dc.date.available | 2010-01-15T00:04:30Z | |
dc.date.available | 2010-01-16T00:18:58Z | |
dc.date.created | 2007-12 | |
dc.date.issued | 2009-05-15 | |
dc.identifier.uri | https://hdl.handle.net/1969.1/ETD-TAMU-2025 | |
dc.description.abstract | Power Consumption in VLSI (Very Large Scale Integrated) circuits is currently a
major issue in the semiconductor industry. Power is a first order design constraint in many
applications. Several of these applications need extreme low power but do not need high
speed. Sub-threshold circuit design can be used in these cases, but at such a low supply
voltage these circuits exhibit an exponential sensitivity to process, voltage and temperature
(PVT) variations. In this thesis we implement and test a robust sub-threshold design flow
which uses circuit level PVT compensation to stabilize circuit performance. This is done
by dynamic modulation of the delay of a representative signal in the circuit and then phase
locking it with an external reference signal.
We design and fabricate a sub-threshold wireless BFSK transmitter chip. The transmitter
is specified to transmit baseband signals up to a data rate of 32kbps over a distance
of 1000m. In addition to the sub-threshold implementation, we implement the BFSK transmitter
using a standard cell methodology on the same die operating at super-threshold voltages
on a different voltage domain. Experiments using the fabricated die show that the
sub-threshold circuit consumes 19.4x lower power than the traditional standard cell based
implementation. | en |
dc.format.medium | electronic | en |
dc.format.mimetype | application/pdf | |
dc.language.iso | en_US | |
dc.relation.uri | https://hdl.handle.net/1969.1/85792 | |
dc.subject | sub-threshold | en |
dc.subject | wireless | en |
dc.subject | BFSK | en |
dc.subject | transmitter | en |
dc.subject | Programmable Logic Arrary | en |
dc.subject | adaptive body bias | en |
dc.subject | | en |
dc.title | Design and implementation of a sub-threshold wireless BFSK transmitter | en |
dc.type | Thesis | en |
thesis.degree.department | Electrical and Computer Engineering | en |
thesis.degree.discipline | Computer Engineering | en |
thesis.degree.grantor | Texas A&M University | en |
thesis.degree.name | Master of Science | en |
thesis.degree.level | Masters | en |
dc.contributor.committeeMember | Li, Peng | |
dc.contributor.committeeMember | Walker, Duncan, M | |
dc.type.genre | thesis | en |
dc.type.material | text | en |
dc.format.digitalOrigin | born digital | en |