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NRF52820-QDAA-R Datasheet(PDF) 218 Page - Nordic Semiconductor

Part # NRF52820-QDAA-R
Description  nRF52820
PDF  437 Pages
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Manufacturer  NORDIC [Nordic Semiconductor]
Direct Link  https://www.nordicsemi.com/
Logo NORDIC - Nordic Semiconductor

NRF52820-QDAA-R Datasheet(HTML) 218 Page - Nordic Semiconductor

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Peripherals
Bit number
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
ID
I I I I H H H H
G G G F E E E
C C C B
A A A A A A
Reset 0x00023282
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 1 0 0 1 0 1 0 0 0 0 0 1 0
ID
Access
Field
Value ID
Value
Description
A
RW NUMBEROF8US
Length of the AoA/AoD procedure in number of 8 µs units
Always used in TX mode, but in RX mode only when
CTEINLINECTRLEN is 0
B
RW DFEINEXTENSION
Add CTE extension and do antenna switching/sampling in
this extension
CRC
1
AoA/AoD procedure triggered at end of CRC
Payload
0
Antenna switching/sampling is done in the packet payload
C
RW TSWITCHSPACING
Interval between every time the antenna is changed in the
SWITCHING state
4us
1
4 µs
2us
2
2 µs
1us
3
1 µs
E
RW TSAMPLESPACINGREF
Interval between samples in the REFERENCE period
4us
1
4 µs
2us
2
2 µs
1us
3
1 µs
500ns
4
0.5 µs
250ns
5
0.25 µs
125ns
6
0.125 µs
F
RW SAMPLETYPE
Whether to sample I/Q or magnitude/phase
IQ
0
Complex samples in I and Q
MagPhase
1
Complex samples as magnitude and phase
G
RW TSAMPLESPACING
Interval between samples in the SWITCHING period when
CTEINLINECTRLEN is 0
Not used when CTEINLINECTRLEN is set. Then either
CTEINLINERXMODE1US or CTEINLINERXMODE2US are used.
4us
1
4 µs
2us
2
2 µs
1us
3
1 µs
500ns
4
0.5 µs
250ns
5
0.25 µs
125ns
6
0.125 µs
H
RW REPEATPATTERN
Repeat each individual antenna pattern N times
sequentially, i.e. P0, P0, P1, P1, P2, P2, P3, P3, etc.
NoRepeat
0
Do not repeat (1 time in total)
I
RW AGCBACKOFFGAIN
Gain will be lowered by the specified number of gain steps
at the start of CTE
First LNAGAIN gain drops, then MIXGAIN, then AAFGAIN
6.12.15.81 DFECTRL2
Address offset: 0x914
Start offset for Direction finding
4463_156 v1.0
218



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