Coded data generation or conversion – Analog to or from digital conversion – Digital to analog conversion
Reexamination Certificate
2008-01-29
2009-08-04
Jeanglaude, Jean B (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Digital to analog conversion
C330S260000, C327S561000
Reexamination Certificate
active
07570188
ABSTRACT:
Common mode management between a DAC, such as a current-steering DAC, and a transconductance filter in a high-frequency transmission system. In one aspect of the invention, a transmission circuit includes a DAC that provides an analog signal from an input digital signal, and a filter such as a transconductance filter connected to the DAC, the filter receiving the analog signal and filtering the analog signal for transmission. A common mode management circuit connected to the DAC and the transconductance filter provides common mode compatibility in the interface connecting the DAC and the transconductance filter.
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Atmel Corporation
Jeanglaude Jean B
Schwegman Lundberg & Woessner, P.A.
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