Sunshine
What is the power range of Goodix BLE chips? Do the chips need to supply
power to cores and I/Os separately?
Goodix Administrator
GR551x series SoC provides on-chip DC-DC converters.
The chips use low dropout (LDO) regulators to supply power to I/Os and external devices. The power range is between 1.7 V and 4.35 V.
Ping
1. Supply voltage: 1.7 V to 3.8 V. The supply voltage of GR5515I0ND/GR5515I0NDA (when the external Flash ofGR5515I0NDA supplied by high voltage) shall equal the working voltage of external QSPI Flash
2. I/O voltage: 1.8 V to 3.3 V (Typical) (for GR5515I0ND/GR5515I0NDA/GR5515IENDU/GR5513BENDU Flashusing high voltage, the VIO_LDO_OUT shall be connected to VBATL in schematic circuit.)
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