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Revision 1.0 Page 21 of 25
Headset Reference Design v1.0
Table 7. USB dongle BOM
Part Designator Footprint Description
10n C1 C3 C4 C5 C6 C11 SM/0402 Capacitor 0402/X7R/16V/10%
10u C2 C13 C22 SM/0805 Capacitor 0805/X5R/6V3/15%
1.0n C7 SM/0402 Capacitor 0402/X7R/50V/10%
33n C8 SM/0402 Capacitor 0402/X7R/16V/10%
4.7p C9 SM/0402 Capacitor 0402/NP0/50V/5%
2.2n C10 SM/0402 Capacitor 0402/X7R/50V/10%
4.7p C12 SM/0402 Capacitor 0402/NP0/50V/5%
1.0p C14 C26 SM/0402 Capacitor 0402/NP0/50V/5%
15p C15 C16 SM/0402 Capacitor 0402/NP0/50V/5%
22p C17 C18 SM/0402 Capacitor 0402/NP0/50V/5%
47u C23 CAPMP3528X210L Capacitor,Tant, B
TAJB476K004R
470n C24 SM/0402 Capacitor 0402/X5R/6.3V/10%
2.2u C25 SM/0603 Capacitor 0603/X5R/6.3V/10%
G D1 0603_D LED, Green EL19-21UGC
4.7n L1 SM/0402 Inductor, RF
LQP15MN4N7B02D
8.2n L2 SM/0402 Inductor, RF
LQP15MN8N2B02D
5.6n L3 SM/0402 Inductor, RF
LQP15MN5N6B02D
USB-A P1 CON/USB-A/PLUG USB connector 48037-2100
nRF24L01 VoIP USB
Dongle Board
PCB1 PCB
PDTC115TU Q1 SM/SOT323 NPN with resistors
PDTC115TU
22k R1 SM/0402 Resistor, 0.1W 0402/1%
22 R2 R3 SM/0402 Resistor, 0.1W 0402/1%
1M R4 SM/0402 Resistor, 0.1W 0402/1%
100K R5 SM/0402 Resistor, 0.1W 0402/1%
0 R8 R9 R21 R26 SM/0402 Resistor, 0.1W 0402/1%
10 R10 SM/0402 Resistor, 0.1W 0402/1%
2.2k R11 SM/0402 Resistor, 0.1W 0402/1%
3.3k R12 SM/0402 Resistor, 0.1W 0402/1%
470 R20 SM/0402 Resistor, 0.1W 0402/1%
10k R23 R24 SM/0402 Resistor, 0.1W 0402/1%
1.5k R25 SM/0402 Resistor, 0.1W 0402/1%
SN11220ACF U1 TSQFP50P900X900X16
0-48L
USB Audio Controller
SN11220ACF
nRF24L01 U2 QFN20-4x4 RF Transceiver nRF24L01
ATMega88 U3
QFN50P500X500X100-
33AL
Microcontroller ATmega88V-
10MU
93C46 U4
TSSOP-8
EEPROM, 1k AT93C46-10TU-
2.7
16MHz Y1
XW4*2.5
Crystal TSX-10 16MHz
6.0MHz Y2
TH/XO/CA-301
Crystal CA-301 6.000M-C
Connector P3 0 ISP Connector BM06B-SRSS-
TB(LF)(SN)