RFM22 Datasheet, PDF (146/150 Pages) –

RFM22
15. Errata Status Summary
Errata #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Title
TX output power at 18.5 dBm
Spur located at half of the output
TX frequency
Spurious behavior near
frequencies in multiples of 5 MHz
General purpose ADC in
differential mode
RX current consumption does not
meet specified data sheet value
Additional tuning steps required
for proper RX mode operation
30 MHz sensitivity de-sense
Incorrect preamble length in TX
packet handler mode
Register modifications needed for
correct operation
Device operation below –25 °C
Wake Up Timer and Low Duty
Cycle mode not functional
Antenna switch control in TX
mode
Bi-modal phase noise at 1 kHz
and 1 MHz offsets
Some non-standard frequencies
are not supported
Register settings for RSSI
Reference design for harmonics
LBD voltage read-back
Register modification for
data-rates higher than 100 kbps
Reference design from data sheet
version 0.4 should be used
Impact
Minor
Minor
Minor
Minor
Minor
Minor
Minor
Minor
Minor
Minor
Minor
Minor
Major
Major
Informati
onal
Informati
onal
Informati
onal
Informati
onal
Informati
onal
Status
Will be fixed in the next revision
Will be fixed in the next revision
Will be fixed in the next revision
Will be fixed in the next revision
Will be fixed in a future revision
Software workaround—will be fixed in the next revision
Will be fixed in a future revision
Will be fixed in the next revision
Will be fixed in the next revision
Software workaround - will be fixed in the next revision
Use the micro or 32 kHz option for these functions.
Will be fixed in the next revision
Software work around available
Will be fixed in the next revision
Will be fixed in the next revision
Will be fixed in the next revision
New reference design being released
Will be fixed in a future revision
Impact Definition: Each erratum is marked with an impact, as defined below:
Minor:
Workaround exists.
Major:
Errata that do not conform to the data sheet or standard.
Information: The device behavior is acceptable the data sheet will be changed to match the device behavior.
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