AWT6301R
APPLICATION INFORMATION
Bias Modes
To ensure proper performance, refer to all related
Application Notes on the ANADIGICS web site:
http://www.anadigics.com
The power amplifier may be placed in either a Low Bias
mode or a High Bias mode by applying the appropriate
logic level (see Operating Ranges table) to the VMODE
voltage. The Bias Control table lists the recommended
modes of operation for various applications.
Shutdown Mode
The power amplifier may be placed in a shutdown
mode by applying a logic low levels (see Operating
Ranges table) to both the VREF and VMODE voltages.
Table 8: Bias Control
P
OUT
BIAS
APPLICATION
AMPS
LEVELS
MODE
V
REF
V
MODE
(all)
High
Low
+2.85 V
0 V
CDMA - low power
CDMA - high power
Shutdown
<+28 dBm
>+16 dBm
-
+2.85 V +2.85 V
High
+2.85 V
0 V
0 V
0 V
Shutdown
VREF
C6
1 µF
1
2
8
VREF
GND
C5
68 pF
7
VMODE
VMODE
RFOUT
RFOUT
3
4
6
RFIN
RFIN
GND
5
VCC1
VCC1
VCC2
VCC2
C2
10 µF
C1
10 µF
C4
68 pF
GND
at slug
Figure 3: Application Circuit
Data Sheet - Rev 2.0
10/2008
6
ANADIGICS [ ANADIGICS, INC ]
