AWT6631
APPLICATION INFORMATION
To ensure proper performance, refer to all related logic level (see Operating Ranges table) to VMODE1
.
Application Notes on the ANADIGICS web site: The Bias Control table lists the recommended modes
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of operation for various applications. VMODE2 is not
necessary for this PA.
Shutdown Mode
The power amplifier may be placed in a shutdown Two operating modes are available to optimize current
mode by applying logic low levels (see Operating consumption. High Bias/High Power operating mode
Ranges table) to the VENABLE and VMODE1 voltages.
is for POUT levels > 16 dBm. At around 17 dBm output
power, the PAshould be “Mode Switched” to Low power
mode for lowest quiescent current consumption.
Bias Modes
The power amplifier may be placed in either a Low Bias
mode or a High Bias mode by applying the appropriate
Vcontrols
Venable/Vmode(s)
Rise/Fall Max 1µS
Defined at 10% to 90%
of Min/Max Voltage
On Sequence Start
T_0N=0µ
Off Sequence Start
T_0FF=0µ
ON Sequence
OFF Sequence
RFIN
notes 1,2
VEN
VCC
note 1
T_0N+1µS
T_0N+3µS
T_0FF+2µS T_0FF+3µS
Referenced After 90%of Rise
Time
Referenced Before10%of Fall
Time
Figure 3: Recommended ON/OFF Timing Sequence
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.
Data Sheet - Rev 2.7
03/2012
11
ANADIGICS [ ANADIGICS, INC ]
