Hello,
I've read a lot of threads (here and elsewhere) about decoupling caps, as well as articles and analysis. Nevertheless, I cannot find a capacitor able to meets the requirements of an IC manufacturer. Namely:
The fourth point is driving me crazy.
In 99.99% of cases ESL data are not reported at all on commercial data-sheets so I cannot select any product. When lucky is with you just generic sentences like "ideal for decoupling at high frequencies", "decoupling of ICs", etc. are reported.
I have found some potential candidates (i.e. Murata GQM series and other) but they offer a maximum of 0.1uF as capacitance.
I wrote also an email to the IC manufacturer but I'm still waiting for an answer since one week (they forwarded my question to their engineers. )
Are caps with above characteristics existing in real life?
Should I give up?
P.S: If you're curious, the IC is an ST1110 OBD decoder: https://www.scantool.net/scantool/downloads/97/stn1110-ds.pdf
I've read a lot of threads (here and elsewhere) about decoupling caps, as well as articles and analysis. Nevertheless, I cannot find a capacitor able to meets the requirements of an IC manufacturer. Namely:
- capacitance of 1uF
- voltage rating between 10 and 20 VOLT
- low ESR
- "resonance frequency in the range of 20 MHz and higher." (cit.)
The fourth point is driving me crazy.
In 99.99% of cases ESL data are not reported at all on commercial data-sheets so I cannot select any product. When lucky is with you just generic sentences like "ideal for decoupling at high frequencies", "decoupling of ICs", etc. are reported.
I have found some potential candidates (i.e. Murata GQM series and other) but they offer a maximum of 0.1uF as capacitance.
I wrote also an email to the IC manufacturer but I'm still waiting for an answer since one week (they forwarded my question to their engineers. )
Are caps with above characteristics existing in real life?
Should I give up?
P.S: If you're curious, the IC is an ST1110 OBD decoder: https://www.scantool.net/scantool/downloads/97/stn1110-ds.pdf