Circuit for reconstructing an analog signal from a digital...

Details Circuit for reconstructing an analog signal from a digital... Circuit for reconstructing an analog signal from a digital...

2008-07-15

2008-07-15

Mai, Lam T (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

C144S143000

Reexamination Certificate

active

07400285

ABSTRACT:
A circuit for reconstructing an analog signal starting from a digital input signal includes a digital to analog converter and a low pass-filter connected at the output of the converter for receiving the analog format signal and outputting a reconstructed analog signal. The low pass filter is an active filter continuous in time and current-coupled to the output of the digital-analog converter. The digital-analog converter is of the current-steering type functioning at a sampling frequency greater than the Nyquist frequency of the analog signal.

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PCT International Search Report PCT/IT2005/000281.

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