Direct conversion, or zero IF, receivers are popular in applications where the need to reduce power consumption, reduce costs and extend battery life are behind requests to use 'all the Nyquist ...

A channel’s maximum throughput as a function of symbol rate and bandwidth. A channel’s maximum throughput as a function of noise interference. How throughput considerations go all the way back to the ...

This rule of thumb enables us to estimate the highest frequency to worry about for a data signal. Spoiler summary: At the Tx, it is 2.5× the bitrate. At the Rx, in a lossy channel, it is the Nyquist: ...

SNR, SFDR, and ENOB are measurements that consider the entire Nyquist zone of the ADC in response to a single-tone sine wave input. However, most real-world signals are not single-tone sine waves and ...

When electrical engineers hear the name "Nyquist," they think of what Harry Nyquist is best known for: his Sampling Theorem. Evidence of its importance is everywhere. Products like cell phones, audio ...

In an October column about undersampling, I explained how a data acquisition system could use aliasing to move signals within bandwidth x into a lower-frequency portion of the spectrum. That column ...

Essex-based e2v has revealed a 12bit DAC with an analogue bandwidth that extends beyond 7GHz. The single-core device samples at up to 4.5Gsample/s without interpolation. Called EV12DS400, it includes ...