AWC6340
APPLICATION INFORMATION
To ensure proper performance, refer to all related The Bias Control table below lists the recommended
Application Notes on the ANADIGICS web site: modes of operation for various applications.
http://www.anadigics.com
Two operating modes are recommended to optimize
Shutdown Mode
current consumption. High Bias/High Power operating
The power amplifier may be placed in a shutdown mode is for POUT levels > 15 dBm. At about 15 dBm,
mode by applying logic low levels (see Operating the PAshould be “Mode Switched” to Low Power Mode.
Ranges table) to the VEN and VMODE voltages.
Bias Modes
The power amplifier may be placed in either Low or
High Bias modes by applying the appropriate logic
level (see Operating Ranges table) to the VMODE pin.
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.
Table 5: Bias Control
P
OUT
BIAS
APPLICATION
V
EN
V
MODE
V
CC
V
BATT
LEVELS
≤ +15 dBm
> +15 dBm
-
MODE
Low power
High power
Shutdown
Low
High
+1.8 V +1.8 V
3.1 - 4.35 V
3.1 - 4.35 V
3.1 - 4.35 V
> 3.1 V
> 3.1 V
> 3.1 V
+1.8 V
0 V
0 V
0 V
Shutdown
PRELIMINARY DATA SHEET - Rev 1.8
5
02/2012
ANADIGICS [ ANADIGICS, INC ]
