ATA5423_06 ATMEL [ATMEL Corporation], ATA5423_06 Datasheet - Page 15
![no-image](/images/no-image-200.jpg)
ATA5423_06
Manufacturer Part Number
ATA5423_06
Description
UHF ASK/FSK Transceiver
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.ATA5423_06.pdf
(100 pages)
- Current page: 15 of 100
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4841C–WIRE–05/06
Figure 3-3.
Figure 3-4.
Figure 3-5 on page 16
trate the selectivity and image rejection. This measurement was done 6 dB above the sensitivity
level with a useful signal of 433.92 MHz/FSK/20 Kbit/s/±16 kHz/ Manchester with a level of
–106 dBm + 6 dB = –100 dBm. The figure shows to which extent a continuous wave signal can
surpass –100 dBm until the BER is higher than 10
be 59 dB higher than –100 dBm which is –100 dBm + 59 dB = –41 dBm.
Table 3-6 on page 16
other frequencies. Note that sometimes the blocking is measured relative to the sensitivity level
(dBS) instead of the carrier (dBC).
Narrow Band 3 dB Blocking Characteristic at 433.92 MHz
Wide Band 3 dB Blocking Characteristic at 433.92 MHz
shows the blocking performance measured relative to –100 dBm for some
shows the blocking measurement close to the received frequency to illus-
-10.0
-10.0
60.0
40.0
30.0
20.0
80.0
60.0
40.0
30.0
20.0
70.0
50.0
10.0
70.0
50.0
10.0
0.0
0.0
-50.0
-5.0
Distance of Interfering to Receiving Signal [MHz]
Distance of Interfering to Receiving Signal [MHz]
-40.0
-4.0
-30.0
-3.0
-20.0
-2.0
-10.0
-1.0
-3
0.0
0.0
. For example, at 1 MHz the blocker can then
10.0
1.0
20.0
2.0
ATA5423/25/28/29
30.0
3.0
40.0
4.0
50.0
5.0
15
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