Revision 1.0 Page 25 of 25
Headset Reference Design v1.0
5.4 USB dongle schematics
-RESET
SCK
-RESET
MOSI
MISO
3V3
3V3
3V3
3V3
VUSB
VUSB
3V3
3V3
3V3
3V3
3V3
3V3
3V3
3V3
Title
Size Document Number Rev
Date: Sheet of
SCH-nRF24L01-VHR1-UD 4.0
USB Dongle
A4
11Thursday, November 23, 2006
SCHEMATIC1
Title
Size Document Number Rev
Date: Sheet of
SCH-nRF24L01-VHR1-UD 4.0
USB Dongle
A4
11Thursday, November 23, 2006
SCHEMATIC1
Title
Size Document Number Rev
Date: Sheet of
SCH-nRF24L01-VHR1-UD 4.0
USB Dongle
A4
11Thursday, November 23, 2006
SCHEMATIC1
D1
G
D1
G
C17
22p
C17
22p
R2 22
R2 22
U3
ATMega88
U3
ATMega88
PD0/RXD
30
PD1/TXD
31
PD2/INT0
32
PD3/INT1
1
PD4/XCK
2
PD5
9
PD6
10
PD7
11
PB0/CLKO 12
PB1 13
PB2/-SS 14
PB3/MOSI 15
PB4/MISO 16
PB5/SCK 17
PB6/XTAL1
7
PB7/XTAL2
8
PC0 23
PC1 24
PC2 25
PC3 26
PC4/SDA 27
PC5/SCL 28
PC6/-RESET 29
AVCC 18
VCC 4
VCC 6
GND
3GND
5GND
21
AREF
20
ADC6 19
ADC7 22
GND
33
Y1
16MHz
Y1
16MHz
R11
2.2k
R11
2.2k
C1
10n
C1
10n
Q1
PDTC115TU
Q1
PDTC115TU
R4
1M
R4
1M
C2
10u
C2
10u C3
10n
C3
10n
R9
0
R9
0
C4
10n
C4
10n
R20
470
R20
470
C5
10n
C5
10n
C9
4.7p
C9
4.7p
R12
3.3k
R12
3.3k
L1
2.7n
L1
2.7n
C6
10n
C6
10n
L2
8.2n
L2
8.2n
U2
nRF24L01
U2
nRF24L01
ANT1 12
ANT2 13
IREF 16
VDDPA 11
VDD 18
VDD 7
VDD 15
DVDD
19
VSS
14
VSS
20 VSS
17
VSS
8
XC1 10
XC2 9
CE
1
IRQ
6
CSN
2
SCK
3
MOSI
4
MISO
5
U1
SN11220ACF
U1
SN11220ACF
VDD 7
TAVDD 9
VDD 21
VSSA_PLLA
23
TAVSS
12
VDDOUT 35
VDD5D 36
VSS
37 VDD 46
VSSA_PLLB
48
XSDIN 24
XSCLK 25
XLRCK 26
XSDO 27
XMCLK 32
GPIO0 20
GPIO1 44
GPIO2 18
GPIO3 30
PDSW 31
XOUSB
28
XIUSB
29
USBDP
10 USBDM
11
RSTN 13
SDA 42
SCL 43
LFB
47
LFA
22
DR
1
DW
2
SK
3
CS
4
LEDN 14
PADFUN0 5
PADFUN1 6
PADFUN2 41
PADFUN3 8
CODECSEL 45
VOLDN 15
VOLUP 16
MUTEP 17
HIDMUTER 19
MUTER 39
RECORD 38
FREQMODE0 40
FREQMODE1 34
FREQMODE2 33
C18
22p
C18
22p
L3
3.9n
L3
3.9n
R25
1.5k
R25
1.5k
C11
10n
C11
10n
R10
10
R10
10
C24
470n
C24
470n
C16
15p
C16
15p
P1P1
1
2
3
4
R21
0
R21
0
R8
0
R8
0
C25
2.2u
C25
2.2u
R5
100k
R5
100k
U4
93C46
U4
93C46
VCC
8
GND
5CS 1
ORG
6DO 4
SK 2
DI 3
C8
33n
C8
33n
+
C23
47u
+
C23
47u
P3P3
1
1
2
2
3
3
4
4
5
5
6
6
C10
2.2n
C10
2.2n
C13
10u
C13
10u
R3 22
R3 22
C22
10u
C22
10u
C14
1.0p
C14
1.0p
C7
1.0n
C7
1.0n
R24
10k
R24
10k
A1A1
1
1
C12
1.5p
C12
1.5p
R26
0
R26
0
C26
1.0p
C26
1.0p
C15
15p
C15
15p
Y2
6.0MHz
Y2
6.0MHz
PCB1 nRF24L01 VoIP USB Dongle BoardPCB1 nRF24L01 VoIP USB Dongle Board
R1
22k
R1
22k
R23
10k
R23
10k