Analog signal generator

Details Analog signal generator Analog signal generator

2008-09-08

2010-06-08

Mai, Lam T (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

C341S155000

Reexamination Certificate

active

07733256

ABSTRACT:
The present invention provides an analog signal generator capable of simultaneously improving both items of the influence of noise on a peripheral circuit and the settling time for a desired voltage level. A D/A converter to which the analog signal generator is applied, is configured as follows. A controller supplies a fixed value to data generation units, which respectively generate data according to clock signals and output the same to a buffer unit. The buffer unit temporarily holds the data therein. Control signals generated from the controller are supplied to a selection unit or selector, which decodes the control signals and thereby generates selection signals to turn ON/OFF the output of the data held in the buffer unit in response to the selection signals, after which the corresponding data is supplied to a filter unit, where an analog signal is generated based on the data supplied to the filter unit.

REFERENCES:
patent: 6462692 (2002-10-01), Moriya
patent: 6603883 (2003-08-01), Hamanaka
patent: 6980667 (2005-12-01), Hamanaka
patent: 7102545 (2006-09-01), Choi
patent: 2007/0139225 (2007-06-01), Lee

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