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Hi Sir.
I have some basic questions,The development kit I use is CY8CKIT-042-BLE-A. The chip I use is CY8C4247LQI-BL463.
(1)What is the function of the sawtooth on the board? Is it necessary?
(2)PSoC4 Hardware Design considerations-----AN88619 ,How to understand the words in the red box?
Thanks
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Hi,
1)
PCBs are manufactured on a standard sized panel. Those sharp edges are often referred to as "mouse bites" and they are leftover after depanelization.
See:
https://en.wikipedia.org/wiki/Depaneling
2)
Most SAR ADCs require a large bypass capacitor at the reference input, typically in the range of 1 μF to 22 μF. The large bypass capacitor is required to replenish charge to the internal binary-weighted capacitor array, because each bit decision is settled in a few nanoseconds during each conversion clock cycle.
And chapter 10.1 & table 2 of AN86619 may help you understand the considerations of bypass capacitor:
See:
Planet Analog - Driving the reference input on a SAR ADC
<<<<<<<<<<<<<>>>>>>>>>>>>>
Sincere regards from C. L.
<<<<<<<<<<<<<>>>>>>>>>>>>>
- Mark as New
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Hi,
1)
PCBs are manufactured on a standard sized panel. Those sharp edges are often referred to as "mouse bites" and they are leftover after depanelization.
See:
https://en.wikipedia.org/wiki/Depaneling
2)
Most SAR ADCs require a large bypass capacitor at the reference input, typically in the range of 1 μF to 22 μF. The large bypass capacitor is required to replenish charge to the internal binary-weighted capacitor array, because each bit decision is settled in a few nanoseconds during each conversion clock cycle.
And chapter 10.1 & table 2 of AN86619 may help you understand the considerations of bypass capacitor:
See:
Planet Analog - Driving the reference input on a SAR ADC
<<<<<<<<<<<<<>>>>>>>>>>>>>
Sincere regards from C. L.
<<<<<<<<<<<<<>>>>>>>>>>>>>