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Revision 1.0 Page 22 of 25
User Guide
Table 8. Radio module BOM
Part Designator Footprint Description
100n C1 C13 SM/0402 Capacitor 0402/X7R/16V/10%
22p C2 C5 SM/0402 Capacitor 0402/NP0/50V/5%
15p C3 C4 SM/0402 Capacitor 0402/NP0/50V/5%
4.7p C6 SM/0402 Capacitor 0402/NP0/50V/5%
2.2n C7 SM/0402 Capacitor 0402/X7R/50V/10%
1.0p C9 SM/0402 Capacitor 0402/NP0/50V/5%
10n C10 C14 C16 SM/0402 Capacitor 0402/X7R/16V/10%
1u C11 C12 SM/0402 Capacitor 0402/X5R/6.3V/10%
33n C15 SM/0402 Capacitor 0402/X7R/16V/10%
1.0n C17 SM/0402 Capacitor 0402/X7R/50V/10%
0.8p C18 SM/0402 Capacitor 0402/NP0/50V/5%
4.7n L1 SM/0402 Inductor, RF LQP15MN4N7B02D
8.2n L2 SM/0402 Inductor, RF LQP15MN8N2B02D
4.7n L3 SM/0402 Inductor, RF LQP15MN4N7B02D
nRF24L01 VoIP
RF Module Board
PCB1 PCB
10 R1 R3 SM/0402 Resistor, 0.1W 0402/1%
100k R2 R9 SM/0402 Resistor, 0.1W 0402/1%
1M R4 SM/0402 Resistor, 0.1W 0402/1%
390k R5 SM/0402 Resistor, 0.1W 0402/1%
22k R8 SM/0402 Resistor, 0.1W 0402/1%
XE3005 U1 TSSOP-20 Audio Codec XE3005I033TRLF
ATMega88 U3 QFN50P500X500X
100-33AL
Microcontroller ATmega88V-
10MU
nRF24L01 U4 QFN20-4X4 RF Transceiver nRF24L01
4.096MHz Y1 TH/XO/CA-301 Crystal CSA309-4.096MABJ-UB
16MHz Y2 XW4*2.5 Crystal TSX-10 16MHz