I've seen this a few times and I want to know if I'm missing something.
Please take this example datasheet.
In their typical application diagrams, they show pin 6 (VCC) having both a 0.1μF and a 1.0μF cap in parallel. The last paragraph on page 10 says, "For higher frequency transients, spikes, or digital noises on the line, a good low equivalent-series-resistance (ESR) ceramic capacitor, typically 1μF, placed as close as possible to the device VCC pin works best."... nothing about the 0.1μF. So now I'm left to wonder... should I be using 1.0μF, a single 1.1μF*, or both a 1.0μF and 0.1μF as shown?
Is it carelessly written or am I missing something?
Thanks.
* granted, in this case if 1.1μF is really required, I would expect to have to use both since 1.1μF is an uncommon (if non-existent) value cap.
Please take this example datasheet.
In their typical application diagrams, they show pin 6 (VCC) having both a 0.1μF and a 1.0μF cap in parallel. The last paragraph on page 10 says, "For higher frequency transients, spikes, or digital noises on the line, a good low equivalent-series-resistance (ESR) ceramic capacitor, typically 1μF, placed as close as possible to the device VCC pin works best."... nothing about the 0.1μF. So now I'm left to wonder... should I be using 1.0μF, a single 1.1μF*, or both a 1.0μF and 0.1μF as shown?
Is it carelessly written or am I missing something?
Thanks.
* granted, in this case if 1.1μF is really required, I would expect to have to use both since 1.1μF is an uncommon (if non-existent) value cap.