SX1210
ADVANCED COMMUNICATIONS & SENSING
2.4.2. Frequency Synthesis
Table 6: Frequency Synthesizer Specification
Symbol
FR
BR_F
BR_O
FDA
XTAL
FSTEP
TS_OSC
Description
Frequency ranges
Bit rate (FSK)
Bit rate (OOK)
Frequency deviation (FSK)
Crystal oscillator frequency
Frequency synthesizer
step
Oscillator wake-up time
Conditions
Programmable but requires
specific BOM
NRZ
NRZ
Variable, depending on the
frequency.
From Sleep mode (1)
Min
863
902
950
1.56
1.56
33
9
-
-
Typ
-
-
-
-
-
50
12.8
2
1.5
Max
870
928
960
200
32
200
15
-
5
Unit
MHz
MHz
MHz
Kb/s
Kb/s
kHz
MHz
kHz
ms
Frequency synthesizer
TS_FS
wake-up time at most
10 kHz away from the
From Stby mode
-
500
800
μs
target
200 kHz step
1 MHz step
-
-
180
200
-
-
μs
μs
Frequency synthesizer hop
5 MHz step
-
250
-
μs
TS_HOP
time at most 10 kHz away
from the target
7 MHz step
12 MHz step
20 MHz step
27 MHz step
-
-
-
-
260
290
320
340
-
-
-
-
μs
μs
μs
μs
(1)
Guaranteed by design and characterization
Rev 2– Sept 8 , 2008
th
Page 9 of 73
www.semtech.com
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