SKY77149_06 Datasheet, PDF (8/13 Pages) Skyworks Solutions Inc. – PA Module for CDMA / PCS (1850-1910 MHz)

DATA SHEET • SKY77149
Evaluation Board Description
The evaluation board is a platform for testing and interfacing
design circuitry. To accommodate the interface testing of the
SKY77149, the evaluation board schematic and diagrams are
PA MODULE FOR CDMA / PCS (1850–1910 MHz)
included for preliminary analysis and design. Figure 9 shows the
basic schematic of the board for the 1850 MHz to 1910 MHz
range.
VREF
VCONT
RF_IN
C3
1000 pF
C1
1000 pF
1 _VREF
2 _VCONT
3
RF_IN
8
GND
7
GND
RF_OUT ⁶
RF_OUT
VCC1
4 _VCC1
C2 A
330 pF
VCC2 ⁵
A C6
330 pF
C5
1000 pF
C4
10 µF
VCC2
A Place caps at closest proximity to PA module with the capacitor grounds directly connected to the PAM grounds.
Figure 9. Evaluation Board Schematic
103062_009
P1
RF_IN
J2
GND
VCC1
VCC2
GND
SKYWORKS
SOLUTIONS, INC.
C1
C2
1 _C3
U1
C5
C6
C4
J1
GND
VCONT
GND
VREF
EN17 - D435 - 001
REV. 00
06/11/03
RF_OUT
P2
COMPONENTS
C1 1000 pF
C2 330 pF
C3 1000 pF
C4 10 µF
C5 1000 pF
C6 330 pF
Figure 10. Evaluation Board Assembly Diagram
103062_010
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
8
November 6, 2006 • Skyworks Proprietary and Confidential Information. • Products and product information are subject to change without notice. • 103062B