AWT6635P9 datasheet(8/14 Pages) ANADIGICS

8 / 14 page

PRELIMINARY DATASHEET - Rev 1.3

02/2012

AWT6635

APPLICATION INFORMATION

To ensure proper performance, refer to all related

Application Notes on theANADIGICS web site:

http://www.anadigics.com

Shutdown Mode

The power amplifier may be placed in a shutdown

mode by applying logic low levels (see Operating

Rangestable)totheVENABLE and VMODE1voltages.

Bias Modes

ThepoweramplifiermaybeplacedineitheraLowBias

modeoraHighBiasmodebyapplyingtheappropriate

logic level (see Operating Ranges table) to VMODE1.

TheBiasControltableliststherecommendedmodes

of operation for various applications. VMODE2 is not

necessaryforthisPA.

Twooperatingmodesareavailabletooptimizecurrent

consumption.HighBias/HighPoweroperatingmode

isforPOUTlevels>16dBm.Ataround17dBmoutput

power,thePAcanbe“ModeSwitched”toLowpower

modeforlowestquiescentcurrentconsumption.

Table 7: Bias Control

APPLICATION

POUT

LEVELS

BIAS

MODE

VENABLE

VMODE1

VCC

VBATT

Highpower

(HighBiasMode)

>+16dBm

High

+1.8V

1.5-4.35V

>3.1V

Med/lowpower

(LowBiasMode)



+17dBm

Low

+1.8V

0.5-4.35V

>3.1V

Shutdown

0.5-4.35V

>3.1V

Figure9:RecommendedON/OFFTimingSequence

Notes:

(1) Level might be changed after RF is ON.

(2) RF OFF defined as PIN ≤ -30 dBm.

(3) Switching simultaneously between VMODE and VEN is not recommended.

VEN

VCC

note 1

RFIN

notes 1,2

OFF Sequence

Referenced After 90% of Rise

Time

Referenced Before10% of Fall

Time

ON Sequence

On Sequence Start

T_0N=0µ

T_0N+1µS

T_0N+3µS

Off Sequence Start

T_0FF= 0µ

T_0FF+2µST_0FF+3µS

Vcontrols

Venable/Vmode(s)

Rise/Fall Max 1

µS

Defined at 10% to 90%

of Min/Max Voltage

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