AWT6632
To ensure proper performance, refer to all related
Application Notes on the ANADIGICS 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
Ranges table) to the V
ENABLE
and V
MODE1
voltages.
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 1
µ
S
Defined at 10% to 90%
of Min/Max Voltage
Off Sequence Start
T_0FF = 0µ
APPLICATION INFORMATION
logic level (see Operating Ranges table) to V
MODE1
.
The Bias Control table lists the recommended modes
of operation for various applications. V
MODE2
is not
necessary for this PA.
Two operating modes are available to optimize current
consumption. High Bias/High Power operating mode
is for P
OUT
levels >
15.75 dBm. At around 16.75 dBm
output power, the PA should be “Mode Switched”
to Low power mode for lowest quiescent current
consumption.
On Sequence Start
T_0N = 0µ
ON Sequence
OFF Sequence
RF
IN
notes 1,2
V
EN
V
CC
note 1
T_0N+1µS
T_0N+3µS
T_0FF+2µS T_0FF+3µS
Referenced After 90% of Rise
Time
Figure 3: Recommended ON/OFF Timing Sequence
Referenced Before10% of Fall
Time
Notes:
(1) Level might be changed after RF is ON.
(2) RF OFF defined as P
IN
≤ -30 dBm.
(3) Switching simultaneously between V
MODE
and V
EN
is not recommended.
Table 7: Bias Control
Application
High power
(High Bias Mode)
Med/low power
(Low Bias Mode)
Shutdown
P
OUT
LEVELS
>+15.75 dBm
+16.75 dBm
-
BIAS
MODE
High
Low
Shutdown
V
ENABLE
+1.8 V
+1.8 V
0V
V
MODE1
0V
+1.8 V
0V
V
CC
1.5 - 4.35 V
0.5 - 4.35 V
0.5 - 4.35 V
V
BATT
> 3.1 V
> 3.1 V
> 3.1 V
7
DATA SHEET - Rev 2.1
02/2012
ANADIGICS [ ANADIGICS, INC ]
