CC2500-RTR1 datasheet(9/84 Pages) TI

9 / 84 page

CC2500

PRELIMINARY Data Sheet (Rev.1.2)

SWRS040A

Page 9 of 83

Parameter

Min

Typ

Max

Unit

Condition/Note

250 kbps data rate, current optimized, 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

Desired channel 3 dB above the sensitivity limit. 750 kHz

channel spacing

Alternate channel

rejection

Desired channel 3 dB above the sensitivity limit. 750 kHz

channel spacing

See Figure 25 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

Desired channel 3 dB above the sensitivity limit. 1 MHz

channel spacing

Alternate channel

rejection

Desired channel 3 dB above the sensitivity limit. 1 MHz

channel spacing

See Figure 26 for plot of selectivity versus frequency offset

General

Blocking at ±10 MHz

offset

Desired channel at –80 dBm. Compliant with ETSI EN 300

440 class 2 receiver requirements.

Blocking at ±20 MHz

offset

Desired channel at –80 dBm. Compliant with ETSI EN 300

440 class 2 receiver requirements.

Blocking at ±50 MHz

offset

Desired channel at –80 dBm. Compliant with ETSI EN 300

440 class 2 receiver requirements.

Spurious emissions

25 MHz – 1 GHz

Above 1 GHz

–57

–47

dBm

Table 5: RF receive parameters

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