Forums

can I run MC1496 (modulator) w/ 80MHz carrier?

Started by 1jam August 3, 2010
Hi, for reference:

http://www.onsemi.com/pub_link/Collateral/MC1496-D.PDF

Can I run this chip with an 80MHz carrier? I'm trying, but the output is 
very weak. The datasheet isn't clear to me. thanks!
On Aug 2, 10:12=A0pm, 1jam <c...@example.net> wrote:

> http://www.onsemi.com/pub_link/Collateral/MC1496-D.PDF > > Can I run this chip with an 80MHz carrier? I'm trying, but the output is > very weak. The datasheet isn't clear to me. thanks!
It should work. Gain might be low, though. Is your DC bias correct? For normal operation, the two ports and the current source must be biased at three different DC levels (about 3V spacing, so the Vcc has to be 10V or more). Other Gilbert cell chips, like HFA3101, might be better at this relatively high frequency.