AWT6135
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 logic low levels (see Operating
Ranges table) to both the VREF and VMODE voltages.
Table 5: Bias Control
P
OUT
BIAS
APPLICATION
CDMA - low power
CDMA - high power
Shutdown
LEVELS
<+16dBm
>+16 dBm
-
MODE
V
REF
V
MODE
Low
High
+2.8 V +2.8 V
+2.8 V
0 V
0 V
0 V
Shutdown
VCC1
VCC2
C1
0.01µF
C3
0.01µF
C4
2.2µF ceramic
1
2
3
4
5
10
V
CC
V
CC
9
8
7
6
RF IN
RFIN
GND
GND
RFOUT
GND
RF OUT
VMODE
VREF
V
V
MODE
REF
GND
GND
at slug
C2
0.01µF
Figure 3: Application Circuit Schematic
PRELIMINARY DATA SHEET - Rev 1.1
5
08/2003
ANADIGICS [ ANADIGICS, INC ]
