CY4636 WirelessUSB™ LP Keyboard Mouse Reference Design Kit User Guide, Doc. # 001-70355 Rev. *A
95
Figure A-3. Keyboard
Figure A-4. USB Adapter
Keyboard Interface
Power Supply
SDATA
ISSP
SCLK
"-"
XRES
"+"
BIND
Serial debug
header
Layout J3 and J2.1 in a
0.100" spacing
configuration
E-PAD must be soldered to ground.
Radio Decoupling Caps
RF VCO
and VCO
Buffer
Filter
The power supply decoupling shown for VBAT0
is a recommended cost effective
configuration:
C6=No Load R2= 1ohm C7=10uF ceramic.
For this configuration, it is required that
C18 be installed.
An alternate decoupling configuration is
the following:
C6=47uF ceramic R2=0ohm C7=.047uF.
For this configuration, it is not required
to load C18.
For reference design part numbers, please
refer to the Bill of Materials file
121-26504_A.xls.
A 2-pin jumper
installed from J3.1
to J2.1 enables the
radio to power the
processor. Jumper
removal is required
when programming U2
to disconnect the
radio from the
Miniprog 5V source.
R1 is a zero ohm
resistor that should
be installed for
production units
only, following
programming.
MISO
MOSI
P1_1
SCK
P1_0
MISO
nSS
IRQ
MOSI
CLKOUT
RST
SCK
COL16
COL10
COL17
COL9
COL13
P1_0
COL15
COL18
COL12
COL11
COL14
nSS
P1_1
COL5
COL3
COL2
COL8
COL1
COL6
COL7
COL4
ROW5
ROW4
ROW6
ROW2
ROW7
ROW1
ROW8
ROW3
COL7
COL11
ROW4
ROW2
COL1
COL3
COL8
COL10
COL14
ROW8
ROW3
COL2
COL6
ROW6
ROW5
COL18
ROW1
COL13
COL16
COL9
ROW7
COL5
COL4
COL12
COL15
COL17
IRQ
SW1
PACTL
EVCC
VCC
VBAT
VBAT
VCC
VBAT
VBAT
VCC
EVCC
SOT23
D1
BAT400D
2
1
IND0402
L2
1.8 nH
U2
CY7C60123-PVXC
30
16
17
18
29
28
26
25
19
23
12
5
7
24
10
20
43
21
42
22
6
34
35
36
37
38
39
40
41
13
14
15
31
32
33
27
44
11
9
8
4
1
2
3
46
47
48
45
P1_4 / SCLK
P0_7
P0_6 / TIO1
P0_5 / TIO0
P1_3 / SSEL
P1_2
P1_1
P1_0
P0_4 / INT2
P0_0 / CLKIN
P2_3
VDD1
P4_0
VSS1
P2_5
P0_3 / INT1
P4_3
P0_2 / INT0
P4_2
P0_1 / CLKOUT
P4_1
P3_0
P3_1
P3_2
P3_3
P3_4
P3_5
P3_6
P3_7
P2_2
P2_1
P2_0
P1_5 / SMOSI
P1_6 / SMISO
P1_7
VDD2
VSS2
P2_4
P2_6
P2_7
NC4
NC1
NC2
NC3
NC6
NC7
NC8
NC5
S1
SW PUSHBUTTON
1A
2A
1B
2B
0402
C5
0.47 uFd
IND0603
L1
22 nH
0603
R1
NO LOAD
J1
KB 26 Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
TV4
0402
C8
1 uFd 6.3V
BH1
BATT CON 2xAA
1
2
3
POS
NEG1
NEG2
0402
C11
0.047 uFd
0402
C17
0.47 uFd
0805
R2
1 1%
L3
10 uH
TV5
0805
C12
10 uFd 6.3V
0805
C7
10 uFd 6.3V
0402
C20
0.01 uFd
0402
C16
0.047 uFd
J3
1 PIN HDR
1
TV8
J2
5 PIN HDR
1
2
3
4
5
J4
3 PIN HDR
1
2
3
0402
R3
47
TP2
TP1
0402
C13
0.047 uFd
U1
CYRF6936
36
4
8
19
16
20
2
25
27
26
29
34
28
3
7
5
13
6
37
1
24
39
40
41
35
9
14
10
11
12
15
17
18
21
30
22
33
23
31
32
38
NC15
NC2
VBAT2
RESV
VCC3
NC9
NC1
SCK
MOSI
IRQ
XOUT
RST
MISO
VCC1
VCC2
NC3
RFn
VBAT1
L/D
XTAL
SS
NC16
VREG
E-PAD
VDD
NC4
NC5
RFbias
RFp
GND1
NC6
NC7
NC8
NC10
PACTL
NC11
VIO
NC12
NC13
NC14
VBAT0
0402
C3
2.0 pFd
0402
C1
15 pFd
+
E
C18
100 uFd 10v
0402
C15
0.047 uFd
TV7
TV6
ANT1
WIGGLE 63
1
2
0402
C4
1.5 pFd
Y1
12 MHz Crystal
TV2
1210
C6
No Load
0402
C10
0.047 uFd
TV1
TV3
0402
C19
0.01 uFd
0402
C9
0.047 uFd
SDATA
SCLK
Programming header
Jumpers Orientation
Pins 1&3, 2&4 =E2
Pins 1&2, 3&4 =E3
NC
DP
DM
SDATA
SCLK
VCC
VCC
0603
R2
NO LOAD
J1
HDR 1x5 RA
1
3
2
4
5
J3
4 Pin HDR
1
3
2
4
0603
R3
NO LOAD
0603
R1
NO LOAD
J2
USB A RA
1
2
3
4
5
6
VBUS
DM
DP
GND
S1
S2