7

Data Sheet - Rev 2.3

03/2012

ALT6708

APPLICATION INFORMATION

To ensure proper performance, refer to all related

Application Notes on theANADIGICS web site:

http://www.anadigics.com

Shutdown Mode

Thepoweramplifiermaybeplacedinashutdownmode

byapplyinglogiclowlevels(seeOperatingRanges

Bias Modes

The power amplifier may be placed in either Low,

Medium or High Bias modes by applying the

appropriatelogiclevel(seeOperatingRangestable)

Table 6: Bias Control

liststherecommendedmodesofoperationforvarious

applications.

Threeoperatingmodesarerecommendedtooptimize

currentconsumption.HighBias/HighPoweroperating

dBm,thePAshouldbe“ModeSwitched”toMedium

canbeswitchedtoLowPowerModeforevenlower

quiescentcurrentconsumption.

Figure 10: Evaluation Board Schematic

C3

330 pF

C4

2.2 µF ceramic

1

6

7

10

8

5

4

3

GND

C1

0.01 µF

29

C5

2.2 µF

C2

0.01 µF

GND at slug

C9

100 pF

APPLICATION

LEVELS

BIAS

MODE

Lowpower

(LowBiasMode)



+7.5 dBm

Low

+1.8 V

+1.8 V

+1.8 V 3.1 - 4.35 V

> 3.1 V

Medpower

(MediumBiasMode)

>+6.5dBm



+17 dBm

Low

+1.8 V

+1.8 V

0 V

3.1 - 4.35 V

> 3.1 V

Highpower

(HighBiasMode)

>+16dBm

High

+1.8 V

0 V

0 V

3.1 - 4.35 V

> 3.1 V

Shutdown

-

Shutdown

0 V

0 V

0 V

3.1 - 4.35 V

> 3.1 V