Capacitor Selection for the FMS6410B S-Video Filter

Method
The FMS6410B requires 0.1µF input coupling capacitors, but may be AC or DC coupled out. Finding video quality — i.e., low ESR, equivalent series resistance, low inductance, low leakage, and constant capacitance over a frequency range from 20Hz to 6MHz — 0.1µF capacitors presents no problem. Surface mount capacitors meeting these requirements are both inexpensive and plentiful.

The FMS6410B, when AC coupled out, also requires four 220µF output coupling capacitors if all outputs are to be used. See Figure 1. However, some users may use values up to 1000µF to pass “TILT” specifications in the two-field test. In the past, when wideband signals such as video needed coupling capacitors in the hundreds of µF’s, tantalums were the only choice.