Patent №
US 7,528,754
Granted
2009-05-05
Filed 2007
Owner
ARIZONA BOARD OF REGENTS, A BODY CORPORATE OF THE STATE OF ARIZONA ACTING FOR AND ON BEHALF OF ARIZONA STATE UNIVERSITY
Lab
—
AI components
1
hardware
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
11672810
A noise-shaped direct digital IF to RF DAC (DIF2RF) with embedded up-converter mixer is presented. The digital IF signal is noised shaped by a band-pass ΣΔ modulator with a single bit IF output followed by a semi-digital current-mode IF filter to attenuate out-of-band quantization noise. A current steering DAC combines scaled values of local oscillator (LO) signals as current sources for performing current steering and upconversion in a single cell.
AI classification
Ownership
ARIZONA BOARD OF REGENTS, A BODY CORPORATE OF THE STATE OF ARIZONA ACTING FOR AND ON BEHALF OF ARIZONA STATE UNIVERSITY
assignment · 225790708