RF31 Hope Microelectronics co., Ltd, RF31 Datasheet - Page 22

• Manufacturer Part Number: RF31
• Description: Rf31 Ism Receiver
• Manufacturer: Hope Microelectronics co., Ltd

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.
Tel: [phone]
fb[4:0] Value
10
11
12
13
14
15
16
17
18
19
20
21
22
23
0
1
2
3
4
5
6
7
8
9
Fax: [phone]
Table 11. Frequency Band Selection
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
N
E-mail: [e-mail]
240–249.9 MHz
250–259.9 MHz
260–269.9 MHz
270–279.9 MHz
280–289.9 MHz
290–299.9 MHz
300–309.9 MHz
310–319.9 MHz
320–329.9 MHz
330–339.9 MHz
340–349.9 MHz
350–359.9 MHz
360–369.9 MHz
370–379.9 MHz
380–389.9 MHz
390–399.9 MHz
400–409.9 MHz
410–419.9 MHz
420–429.9 MHz
430–439.9 MHz
440–449.9 MHz
450–459.9 MHz
460–469.9 MHz
470–479.9 MHz
hbsel=0
Frequency Band
http://www.hoperf.com
480–499.9 MHz
500–519.9 MHz
520–539.9 MHz
540–559.9 MHz
560–579.9 MHz
580–599.9 MHz
600–619.9 MHz
620–639.9 MHz
640–659.9 MHz
660–679.9 MHz
680–699.9 MHz
700–719.9 MHz
720–739.9 MHz
740–759.9 MHz
760–779.9 MHz
780–799.9 MHz
800–819.9 MHz
820–839.9 MHz
840–859.9 MHz
860–879.9 MHz
880–899.9 MHz
900–919.9 MHz
920–930.0 MHz
hbsel=1
R F 3 1
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