S42
Hardware User Guide
1VV0301303 Rev. 11
Page 52 of 85
2021-05-06
Not Subject to NDA
Figure 19: Typical Antenna Radiation Pattern at 2441MHz
Figure 20: Typical Antenna Radiation Pattern at 2480MHz
5.7.
Power-Up Time
The time until the S42 is able to accept link requests or serial data depends on
the firmware version and on the source for the slow clock. Using CEN firmware version,
the device is ready (as indicated by GPIO IOA, measured from the release of EXT_RES#
or VSUP rising above 1,7V) as follows:
•
tDeviceReady 0,9s (typ.) if an external 32,768kHz crystal is connected.
•
tDeviceReady 1,7s (typ.) if no external signal is provided so the internal RC is used.
Содержание BLUEMOD+S42/AI/ADC/LUA
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