|
RFM23BP Datasheet, PDF (21/62 Pages) List of Unclassifed Manufacturers – ISM TRANSCEIVER MODULE | |||
|
◁ |
RFM23BP
Table 12. Frequency Band Selection
fb[4:0] Value
N
0
24
1
25
2
26
3
27
4
28
5
29
6
30
7
31
8
32
9
33
10
34
11
35
12
36
13
37
14
38
15
39
16
40
17
41
18
42
19
43
20
44
21
45
22
46
23
47
Frequency Band
hbsel=0
hbsel=1
240â249.9 MHz
480â499.9 MHz
250â259.9 MHz
500â519.9 MHz
260â269.9 MHz
520â539.9 MHz
270â279.9 MHz
540â559.9 MHz
280â289.9 MHz
560â579.9 MHz
290â299.9 MHz
580â599.9 MHz
300â309.9 MHz
600â619.9 MHz
310â319.9 MHz
620â639.9 MHz
320â329.9 MHz
640â659.9 MHz
330â339.9 MHz
660â679.9 MHz
340â349.9 MHz
680â699.9 MHz
350â359.9 MHz
700â719.9 MHz
360â369.9 MHz
720â739.9 MHz
370â379.9 MHz
740â759.9 MHz
380â389.9 MHz
760â779.9 MHz
390â399.9 MHz
780â799.9 MHz
400â409.9 MHz
800â819.9 MHz
410â419.9 MHz
820â839.9 MHz
420â429.9 MHz
840â859.9 MHz
430â439.9 MHz
860â879.9 MHz
440â449.9 MHz
880â899.9 MHz
450â459.9 MHz
900â919.9 MHz
460â469.9 MHz
920â939.9 MHz
470â479.9 MHz
940â960 MHz
The chip will automatically shift the frequency of the Synthesizer down by 937.5 kHz (30 MHz ÷ 32) to achieve the
correct Intermediate Frequency (IF) when RX mode is entered. Low-side injection is used in the RX Mixing
architecture; therefore, no frequency reprogramming is required when using the same TX frequency and switching
between RX/TX modes.
Tel: +86-755-8297380 Fax: +86-755-8297355 E-mail: sales@hoperf.com http://www.hoperf.com
22
|
▷ |