ADVANCED PRODUCT INFORMATION - Rev 0.1

01/2005

AWT6167

7

Figure 3: Application Schematic

APPLICATION INFORMATION

GSM850/900 RF OUTPUT

GSM850/900 RF INPUT

1

2

3

4

5

6

7

16

15

14

13

12

11

10

89

18

17

DCS/PCS_PIN

BS

TX_EN

VBAT

T

CEXT

VRAMP

GSM_IN

GND

GND

GSM_OUT

VCC_OUT

GND

GND

DCS/PCS_OUT

AWT6167

DCS/PCS RF INPUT

BAND SELECT

TX ENABLE

DAC OUTPUT

DCS/PCS RF OUTPUT

BATTERY

VOLTAGE

* Filtering may be required to filter noise from baseband.

** This component should be placed as close to the device pin as possible.

++ These components are recommended as good design practice for improving noise

rejection characteristics. The values specified are not critical as they may not be required in the

final application.