How to configure LT5537 circuit parameters

Hi,

LT5537 can be used at 70MHz as it falls in it's typical detection range. Minimum Vcc of 2.8V is required for 90dB dynamic range. But If you're not able to get this range, increase Vcc a bit would help. Other way is to change output-to-ground resistor to a smaller value. DS is having a section on optimizing dynamic range with a circuit, which would be more helpful.

As far as 200 MHz operation is considered, the DS is having performance plots at 200MHz and are showing the best performance at those frequency. Performance could significantly change at different operating conditions. But optimizing techniques should still hold good at 200MHz.

Hope this is helpful.    

Hi,

LT5537 can be used at 70MHz as it falls in it's typical detection range. Minimum Vcc of 2.8V is required for 90dB dynamic range. But If you're not able to get this range, increase Vcc a bit would help. Other way is to change output-to-ground resistor to a smaller value. DS is having a section on optimizing dynamic range with a circuit, which would be more helpful.

As far as 200 MHz operation is considered, the DS is having performance plots at 200MHz and are showing the best performance at those frequency. Performance could significantly change at different operating conditions. But optimizing techniques should still hold good at 200MHz.

Hope this is helpful.