Digital-to-analog converter with a linear interpolator

Details Digital-to-analog converter with a linear interpolator Digital-to-analog converter with a linear interpolator

1992-03-30

1993-08-10

Logan, Sharon D.

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

341141, 341144, 341152, H03M 300, H03M 182

Patent

active

052353346

ABSTRACT:
A digital-to-analog converter (20) includes a linear interpolator (24) and a converter (25, 26) such as a sigma-delta modulator (25) and an associated analog summing network (26). The linear interpolator (24) includes a differentiator (200), an integrator (202), and a multiplexer (201). The differentiator (200) differentiates a received signal at a first rate. The multiplexer (201) multiplexes an output of the differentiator (200) to provide a multiplexed signal having a larger number of bits than the received signal in order to support multiple interpolating ratios. The integrator (202) integrates the multiplexed signal at a second rate to present to the converter (25, 26). By connecting the multiplexer (201) between the differentiator (200) and the integrator (202), the digital-to-analog converter (20) minimizes the size of the linear interpolator (24) while relieving a critical path between the linear interpolator (24) and the converter (25, 26).

REFERENCES:
patent: 5057840 (1991-10-01), Ledzius et al.
patent: 5079550 (1992-01-01), Sooch et al.
James C. Candy et al., "Double Interpolation for Digital to Analog Conversion", IEEE Trans. Commun., vol. COM-34, pp. 77-81, Jan. 1986.

Affiliated with

Also associated with

Rating

Digital-to-analog converter with a linear interpolator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital-to-analog converter with a linear interpolator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital-to-analog converter with a linear interpolator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1728573