SKY66108_11 Datasheet, PDF (8/13 Pages) Skyworks Solutions Inc. – 2.0 V to 3.6 V supply operation

DATA SHEET • SKY66108-11: 2.4 GHz SMART ENERGY/ZIGBEE FRONT-END MODULE
VCC
×
HHM1520
U2
J4
SMA
C7
10 pF
C2
100 nF
C5
10 pF
VB
C3
100 nF
C6
10 pF
L1
3.6 nH
××
21 20 19 18 17 16
1 _VCC1
2 _{VB_IN}
3 _TRXP
4 _TRXN
5 _N/C
SKY66108-11
U1
N/C ¹⁵
N/C ¹⁴
ANT ¹³
CSD ¹²
CTX ¹¹
6 7 8 9 10
VCC
C4
×
C8
100 nF
10 pF
CRX
R4
100K
VCC
J3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
VCC
VB
CPS
CRX
CTX
CSD
VCC
C1
2.2 μF
J1
L2
SMA
2.7 nH
CSD
C11
C12
1 pF
1 pF
R3
100K
CTX
R1
100K
CPS
R2
100K
PCB Recommendations:
Metal Layer 1 = RF traces + control lines. Core thickness between top RF layer and ground plane is critical.
Metal Layer 2 = Solid ground plane. No traces routing.
Metal Layer 3 and 4 = Control lines + VCC traces (no VCC plane).
Pour copper on each layer connected to the ground plane. Use VCC traces in a star distribution pattern.
Y1903
Figure 4. SKY66108-11 Evaluation Board Schematic
Table 9. SKY66108-11 Power and Analog I/O Header: J3, 10x2
Pin Number
Evaluation Board Label
Description
14, 19, 20
GND
Ground
1, 3, 5, 6, 7, 9, 11, 13, 15, 17 VCC
Supply voltage
4
VCC1
Supply voltage
2
VCC2
Supply voltage
8
VB
Bias
16
CTX
Control
10
CPS
Control
18
CSD
Control
12
CRX
Control
Recommended setting
General purpose grounds
General purpose VCC provided as the main power supply
General purpose VCC provided as the main power supply
General purpose VCC provided as the main power supply
Output bias to transceiver
See Table 8
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
8
April 16, 2015 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 202969B