4421-DKDB2 Silicon Laboratories Inc, 4421-DKDB2 Datasheet - Page 40

• Manufacturer Part Number: 4421-DKDB2
• Description: KIT DEV TEST EZRADIO SI4421 TRX
• Manufacturer: Silicon Laboratories Inc

Specifications of 4421-DKDB2

• Accessory Type: Test Card, Transceiver, 434MHz
• Wireless Frequency: 434 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

Notes:
PCB Layout
1. SRF, DCR and Q should be similar if components from other manufacturer used
2. The SRF should be twice as much as the operation frequency
3. The dielectric type should be C0G and the resonant frequency should be similar if components from alternative vendor used.
4. The values are valid for 1.5mm thick FR4 PCB. If thinner board used the capacitor value should be increased (and vice versa)
to minimize the level of the second harmonic components.
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Si4421
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