4421-DKDB1 Silicon Laboratories Inc, 4421-DKDB1 Datasheet - Page 37

• Manufacturer Part Number: 4421-DKDB1
• Description: KIT DEV TEST EZRADIO SI4421 TRX
• Manufacturer: Silicon Laboratories Inc

Specifications of 4421-DKDB1

• Accessory Type: Test Card, Transceiver, 915MHz
• Wireless Frequency: 915 MHz
• Interface Type: SPI
• Modulation: FSK
• For Use With/related Products: EZRadio®
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

BER Curves in 433 MHz Band:
BER Curves in 868 MHz Band:
The table below shows the optimal receiver baseband bandwidth (BW) and transmitter deviation frequency (δf
different data-rates supposing no transmit receive offset frequency. If TX/RX offset (for example due to crystal tolerances) have to be
taken into account, increase the BW accordingly.
f
BW=67 kHz
FSK
1.2 kbps
=45 kHz
f
BW=67 kHz
FSK
2.4 kbps
10
10
10
10
10
10
10
10
10
10
10
10
1
1
=45 kHz
-1
-2
-3
-4
-5
-6
-1
-2
-3
-4
-5
-6
-120
-115
f
BW=67 kHz
-115
FSK
-110
4.8 kbps
=45kHz
-110
-105
f
BW=67 kHz
FSK
9.6 kbps
=45 kHz
-105
-100
f
BW=67 kHz
19.2 kbps
FSK
-100
-95
=45 kHz
-95
-90
f
BW=134 kHz
38.4 kbps
FSK
=90 kHz
-90
-85
f
BW=134 kHz
57.6 kbps
FSK
=90 kHz
1.2k
2.4k
4.8k
9.6k
1.2k
2.4k
4.8k
9.6k
19.2k
38.4k
57.6k
19.2k
38.4k
57.6k
115.2k
115.2k
FSK
f
BW=200 kHz
) settings for
115.2 kbps
FSK
Si4421
=120 kHz
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