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NRF52810-QFAA-R7 Datasheet(PDF) 92 Page - Nordic Semiconductor

Part # NRF52810-QFAA-R7
Description  RF52810
PDF  483 Pages
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Manufacturer  NORDIC [Nordic Semiconductor]
Direct Link  https://www.nordicsemi.com/
Logo NORDIC - Nordic Semiconductor

NRF52810-QFAA-R7 Datasheet(HTML) 92 Page - Nordic Semiconductor

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Power and clock management
Calibration timer interval
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
A A A A A A A
Reset 0x00000000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Id
RW Field
Value Id
Value
Description
A
RW CTIV
Calibration timer interval in multiple of 0.25 seconds. Range:
0.25 seconds to 31.75 seconds.
5.4.4 Electrical specification
5.4.4.1 64 MHz internal oscillator (HFINT)
Symbol
Description
Min.
Typ.
Max.
Units
fNOM_HFINT
Nominal output frequency
64
MHz
fTOL_HFINT
Frequency tolerance
<±1.5
<±8
%
tSTART_HFINT
Startup time
3
us
5.4.4.2 64 MHz crystal oscillator (HFXO)
Symbol
Description
Min.
Typ.
Max.
Units
fNOM_HFXO
Nominal output frequency
64
MHz
fXTAL_HFXO
External crystal frequency
32
MHz
fTOL_HFXO
Frequency tolerance requirement for 2.4 GHz proprietary
radio applications
±60
ppm
fTOL_HFXO_BLE
Frequency tolerance requirement, Bluetooth low energy
applications
±40
ppm
CL_HFXO
Load capacitance
12
pF
C0_HFXO
Shunt capacitance
7
pF
RS_HFXO_7PF
Equivalent series resistance C0 = 7 pF
60
ohm
RS_HFXO_5PF
Equivalent series resistance C0 = 5 pF
60
ohm
RS_HFXO_3PF
Equivalent series resistance C0 = 3 pF
100
ohm
PD_HFXO
Drive level
100
uW
CPIN_HFXO
Input capacitance XC1 and XC2
4
pF
tSTART_HFXO
Startup time
0.36
ms
5.4.4.3 32.768 kHz RC oscillator (LFRC)
Symbol
Description
Min.
Typ.
Max.
Units
fNOM_LFRC
Nominal frequency
32.768
kHz
fTOL_LFRC
Frequency tolerance
±2
%
fTOL_CAL_LFRC
Frequency tolerance for LFRC after calibration11
±500
ppm
tSTART_LFRC
Startup time for 32.768 kHz RC oscillator
600
us
5.4.4.4 32.768 kHz crystal oscillator (LFXO)
11 Constant temperature within ±0.5 °C and calibration performed at least every 8 seconds
4430_161 v1.0
92



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