ZHCSGC8A March 2014 – June 2017 AFE5401-Q1
PRODUCTION DATA.
During power-up, the AVDD18, DVDD18, and DRVDD supplies can appear in any sequence. All supplies are separated in the device. Externally, they can be driven from separate supplies with suitable filtering. No power supply sequencing is required.
Minimal external decoupling can be used without loss in performance because the device already includes internal decoupling. Note that decoupling capacitors can help filter external power-supply noise, so the optimum number of capacitors depends on the actual application. The decoupling capacitors should be placed as close as possible to the device supply pins.