xe1205 Semtech Corporation, xe1205 Datasheet - Page 45

• Manufacturer Part Number: xe1205
• Description: Low-power, High Link Budget Integrated Uhf Transceiver
• Manufacturer: Semtech Corporation

The loop filter of the frequency synthesizer is shown in Figure 29 below.
Typical recommended component values for the frequency synthesizer loop filter are provided in Table 33 below:
For 304.7 kbit/s operation, refer to section 6.
© Semtech 2007
8.4
LOOP FILTER OF THE FREQUENCY SYNTHESIZER
Name
CL1
CL2
RL1
Table 33: Typical frequency synthesizer component values
434 MHz
Figure 29: Frequency synthesizer loop filter
22 nF
560W
1 nF
CL1
RL1
869 MHz
12 nF
560W
1 nF
VSS
45
CL2
915 MHz
10 nF
680W
1 nF
LFB
XE1205
Tolerance
± 5%
± 5%
± 5%
XE1205
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