RF42/43
Table 4. Auxiliary Block Specifications1
Parameter
Symbol
Conditions
When calibrated using temp
sensor offset register
Min
Typ
Max Units
Temperature Sensor
—
—
—
—
0.5
—
—
—
—
°C
mV/°C
mV
TSA
2
Accuracy
Temperature Sensor
5
TSS
2
Sensitivity
Low Battery Detector
50
LBDRES
LBDCT
2
Resolution
Low Battery Detector
250
μs
2
Conversion Time
Microcontroller Clock
Output Frequency
Configurable to 30 MHz,
15 MHz, 10 MHz, 4 MHz,
3 MHz, 2 MHz, 1 MHz, or
32.768 kHz
32.768K
—
30M
Hz
MC
General Purpose ADC
—
—
8
4
—
—
bit
ADCENB
ADCRES
2
Accuracy
General Purpose ADC
mV
2
Resolution
Temp Sensor &
General
Purpose ADC
Conversion
—
305
—
μsec
ADCCT
2
Time
30 MHz XTAL Start-Up
time
—
—
—
—
—
1
97
—
—
—
—
—
ms
fF
t30M
30 MHz XTAL Cap
30MRES
t32K
2
Resolution
32 kHz XTAL Start-Up
6
sec
ppm
ppm
2
Time
32
kHz
2
XTAL
OSC
32KRES
100
2500
Accuracy
32
kHz
RC
32KRCRES
2
Accuracy
POR Reset Time
—
—
16
—
—
ms
tPOR
tsoft
2
100
μs
Software Reset Time
Notes:
1. All specification guaranteed by production test unless otherwise noted.
2. Guaranteed by qualification.
8
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