SN250 Datasheet, PDF (18/130 Pages) STMicroelectronics – Single-chip ZigBee/802.15.4 solution

Electrical characteristics
SN250
5.5
5.5.1
RF electrical characteristics
Receive
Table 7 lists the key parameters of the integrated IEEE 802.15.4 receiver on the SN250.
.
Table 7. Receive characteristics
Parameter
Test Conditions
Frequency range
Sensitivity (boost mode)
Sensitivity
High-side adjacent channel
rejection
Low-side adjacent channel
rejection
2nd high-side adjacent channel
rejection
2nd low-side adjacent channel
rejection
Channel rejection for all other
channels
802.11g rejection centered at +
12MHz or − 13MHz
Maximum input signal level for
correct operation (low gain)
Image suppression
Co-channel rejection
Relative frequency error
(2x40 ppm required by IEEE
802.15.4)
Relative timing error
(2x40 ppm required by IEEE
802.15.4)
Linear RSSI range
1% PER, 20byte packet
defined by IEEE 802.15.4
1% PER, 20byte packet
defined by IEEE 802.15.4
IEEE 802.15.4 signal at
− 82dBm
IEEE 802.15.4 signal at
− 82dBm
IEEE 802.15.4 signal at
− 82dBm
IEEE 802.15.4 signal at
− 82dBm
IEEE 802.15.4 signal at
− 82dBm
IEEE 802.15.4 signal at
− 82dBm
IEEE 802.15.4 signal at
− 82dBm
Min.
2400
− 93
− 92
0
− 120
− 120
40
Typ.
− 98
− 97
35
35
40
40
40
40
30
−6
Max.
2500
+ 120
+ 120
Unit
MHz
dBm
dBm
dB
dB
dB
dB
dB
dB
dBm
dB
dBc
ppm
ppm
dB
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