A
Adam
- Jan 1, 1970
- 0
Hello,
Just want to build a SSB modulator with MC1496 chip.
The phasing method (second way) is desired.
Well, the phasing method needs a Hilbert transformer to change the
audio signal by 90 degrees. I saw the below circuit in an electronics
book, the author mentioned that the circuit produce a 90 degree phase
shift with an 1% error from 30Hz to 16KHz .
Most of the filters I have seen for this job are using more
complicated circuits
But with much lower band width!
Do you think the below circuit is able to generate the 90 degrees of
phase shift over that band width?
http://img251.imageshack.us/my.php?image=untitledwc7.jpg
<a href="http://img251.imageshack.us/my.php?image=untitledwc7.jpg"
target="_blank"><img src="http://img251.imageshack.us/img251/9660/
untitledwc7.th.jpg" border="0" alt="Free Image Hosting at
www.ImageShack.us" /></a>
Thanks
Just want to build a SSB modulator with MC1496 chip.
The phasing method (second way) is desired.
Well, the phasing method needs a Hilbert transformer to change the
audio signal by 90 degrees. I saw the below circuit in an electronics
book, the author mentioned that the circuit produce a 90 degree phase
shift with an 1% error from 30Hz to 16KHz .
Most of the filters I have seen for this job are using more
complicated circuits
But with much lower band width!
Do you think the below circuit is able to generate the 90 degrees of
phase shift over that band width?
http://img251.imageshack.us/my.php?image=untitledwc7.jpg
<a href="http://img251.imageshack.us/my.php?image=untitledwc7.jpg"
target="_blank"><img src="http://img251.imageshack.us/img251/9660/
untitledwc7.th.jpg" border="0" alt="Free Image Hosting at
www.ImageShack.us" /></a>
Thanks