Direct down conversion, and its companion, very low IF (VLIF) or near-zero IF, are approaches that have essentially changed the face of the receive chain in a mobile handset. For the designer, it is ...

For direct conversion receivers,second order distortion can play an important role in limiting performance. That is because 2nd order distortion contributes a baseband term which is out-of-band for a ...

About the AD-FMCOMMS6-EBZ Receiver Development Platform The AD-FMCOMMS6-EBZ utilizes an I/Q demodulator to implement a direct conversion or zero IF architecture in which just one frequency ...

[Jeri Ellsworth] has been working on a direct conversion receiver using an FPGA as an oscillator and a PC sound card DSP. Being the excellent presenter she is, she first goes through the history an… ...

A direct conversion receiver development platform has been designed by Analog Devices for the L- and S-band frequency radar bands. The AD-FMCOMMS6-EBZ platform is a 400MHz to 4.4GHz receiver (1350MHz ...

Handset designers are under continual pressure to miniaturise and lower costs. Data services such as GPRS and EDGE stress the handset's receiver chain. Superhets are still highly competitive despite ...