CX77105

Evaluation Board Description

Power Amplifier Module for CDMA/AMPS (824–849 MHz)

101787A

Skyworks Solutions, Inc. Proprietary

11

December 10, 2002

Evaluation Board Description

The evaluation board is a platform for testing and interfacing design circuitry. To accommodate the

interface testing of the CX77105, the evaluation board schematic and diagrams are included for

preliminary analysis and design. Figure 10 shows the basic schematic of the board for the 824 MHz

to 849 MHz range.

Figure 10. Evaluation Board Schematic

Figure 11. Evaluation Board Assembly Diagram

C9

1000 pF

C3

1000 pF

C6

10

µF

C4

1000 pF

C5

330 pF

VCC1

GND 10

GND 9

3 GND

5 VCC1

VCC2 6

2 VCONT

4 RF IN

1 VREF

RF OUT 8

GND 7

101787_003

RF IN

VCONT

VREF

RF OUT

VCC2

C7

0.1

µF

GND

VCC1

VCC2

GND

GND

GND

VCT

VREF

J2

J1

RF IN

RF OUT

EN14-D1235-003

C6

C9

C4

C5

U1

CELLULAR 4X4

P2

P1

101787_002

12/17/01

C3

C7