CC2500 Datasheet, PDF (9/76 Pages) Texas Instruments – Single Chip Low Cost Low Power RF Transceiver

CC2500
Parameter
Min Typ
Max Unit Condition/Note
250 kbps data rate, reduced current, MDMCFG2.DEM_DCFILT_OFF = 1
(MSK, 1% packet error rate, 20 bytes packet length, 540 kHz digital channel filter bandwidth)
Receiver sensitivity
–87
dBm
Saturation
–13
dBm
Adjacent channel
rejection
21
dB Desired channel 3 dB above the sensitivity limit. 750 kHz
channel spacing
Alternate channel
rejection
30
dB Desired channel 3 dB above the sensitivity limit. 750 kHz
channel spacing
See Figure 20 for plot of selectivity versus frequency offset
500 kbps data rate, MDMCFG2.DEM_DCFILT_OFF = 0
(MSK, 1% packet error rate, 20 bytes packet length, 812 kHz digital channel filter bandwidth)
Receiver sensitivity
–82
dBm
Saturation
–18
dBm
Adjacent channel
rejection
14
dB Desired channel 3 dB above the sensitivity limit. 1 MHz
channel spacing
Alternate channel
rejection
25
dB Desired channel 3 dB above the sensitivity limit. 1 MHz
channel spacing
See Figure 21 for plot of selectivity versus frequency offset
General
Selectivity at 10 MHz
47
offset
dB Desired channel at –80 dBm. Compliant with ETSI EN 300
440 class 2 receiver requirements.
Selectivity at 20 MHz
52
offset
dB Desired channel at –80 dBm. Compliant with ETSI EN 300
440 class 2 receiver requirements.
Selectivity at 50 MHz
54
offset
dB Desired channel at –80 dBm. Compliant with ETSI EN 300
440 class 2 receiver requirements.
Spurious emissions
25 MHz – 1 GHz
–57 dBm
Above 1 GHz
–47 dBm
Table 5: RF Receive Parameters
Preliminary Data Sheet (rev.1.1.) SWRS040
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