Datasheet

CHAPTER 4. OPERATING QCLS IN CONTINUOUS WAVE MODE 17
does not vary too much with frequency, it follows that roughly C > 8/Z
AC
/f.
For a 50 Ω generator at 10kHz, C should therefore be of the order of 16uF or larger.
Please keep in mind that such high capacity components may have a remarkably
high inductivity, so it may be useful to put a second capacitor of small value (some nF,
Tantalum or similar non-polarized type) in parallel to the one calculated before.
Construction
To reduce cross-talk with other system components and to improve mechanical stabil-
ity, this interface circuit should be installed into a small metal box with only the connec-
tors accessible, as shown in the following figure.