RFM12B_15 Datasheet, PDF (26/41 Pages) List of Unclassifed Manufacturers – Universal ISM Band FSK Transceiver

Application Proposal for LPDM (Low Power Duty-Cycle Mode) Receivers:
RFM12B
16. Low Battery Detector and Microcontroller Clock Divider Command
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
1 1 0 0 0 0 0 0 d2 d1 d0 0 v3 v2 v1 v0
POR
C000h
The 4-bit parameter (v3 to v0) represents the value V, which defines the threshold voltage Vlb of the detector:
V = 2.25 + V · 0.1 [V]
lb
Clock divider configuration:
d2 d1 d0
000
001
010
011
100
101
110
111
Clock Output
Frequency [MHz]
1
1.25
1.66
2
2.5
3.33
5
10
The low battery detector and the clock output can be enabled or disabled by bits eb and dc, respectively, using the Power
Management Command.
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