RFM22
15. Errata Status Summary
Errata #
Title
Impact
Status
1
TX output power at 18.5 dBm
Spur located at half of the output
TX frequency
Minor
Will be fixed in the next revision
2
3
4
5
Minor
Minor
Minor
Minor
Will be fixed in the next revision
Spurious behavior near
Will be fixed in the next revision
Will be fixed in the next revision
Will be fixed in a future revision
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
6
7
8
Minor
Minor
Minor
Software workaround—will be fixed in the next revision
Will be fixed in a future revision
Will be fixed in the next revision
Register modifications needed for
correct operation
9
Minor
Minor
Minor
Will be fixed in the next revision
10
11
Device operation below –25 °C
Wake Up Timer and Low Duty
Cycle mode not functional
Antenna switch control in TX
mode
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
12
13
14
15
16
17
18
19
Minor
Major
Major
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
Bi-modal phase noise at 1 kHz
and 1 MHz offsets
Some non-standard frequencies
are not supported
Informati
onal
Register settings for RSSI
Reference design for harmonics
LBD voltage read-back
Informati
onal
Informati
onal
Register modification for
Informati
onal
data-rates higher than 100 kbps
Reference design from data sheet Informati
version 0.4 should be used onal
Impact Definition: Each erratum is marked with an impact, as defined below:
Minor:
Major:
Workaround exists.
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.
146
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