AWT6278RM20P8 ANADIGICS [ANADIGICS, Inc], AWT6278RM20P8 Datasheet - Page 5

• Manufacturer Part Number: AWT6278RM20P8
• Description: HELP3TM PCS/WCDMA 3.4 V/29.5 dBm HSPA Linear Power Amplifier Module
• Manufacturer: ANADIGICS [ANADIGICS, Inc]

APPLICATION INFORMATION
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
voltages.
Bias Modes
The power amplifier may be placed in either a Low Bias
mode or a High Bias mode by applying the appropriate
(Low Bias Mode)
(Medium Bias Mode)
(High Bias Mode)
Optional lower V
low power mode
Shutdown
APPLICATION
WCDMA - low power
WCDMA - med power
WCDMA - high power
RF IN
V
V
V
V
MODE2
MODE1
ENABLE
BATT
2.2 µF
CC
C5
in
10K 
Optional
pull-down
ENABLE
> +16 dBm
< +8 dBm
< +7 dBm
+16 dBm
LEVELS
7 P
P
0.01µF
OUT
OUT
, V
-
C1
Figure 3: Application Circuit Schematic
MODE1
<
C2
0.01µF
Shutdown
and V
MODE
BIAS
High
Low
Low
Low
Table 5: Bias Control
1
2
3
4
5
Data Sheet - Rev 2.2
V
RF
V
V
V
MODE2
MODE2
BATT
MODE1
ENABLE
IN
11/2008
V
+2.4 V
+2.4 V
+2.4 V
+2.4 V
ENABLE
0 V
GND
at slug
logic level (see Operating Ranges table) to the V
voltages. The Bias Control table lists the recommended
modes of operation for various applications.
Three operating modes are recommended to optimize
current consumption. High Bias/High Power operating
mode is for P
dBm, the PA should be “Mode Switched” to Medium
Power Mode. For P
switched to Low Power Mode for even lower quiescent
current consumption.
RF
GND
GND
GND
V
OUT
CC
+2.4 V
+2.4 V
+2.4 V
V
10
9
8
7
6
0 V
0 V
MODE1
OUT
+2.4 V
V
C3
0.01µF
2.4 V
0 V
0 V
0 V
MODE2
levels > 16 dBm. At ~16dBm - 7
OUT
levels < ~8 dBm, the PA can be
3.2 - 4.2 V
3.2 - 4.2 V
3.2 - 4.2 V
3.2 - 4.2 V
C4
2.2µF ceramic
1.5 V
V
CC
V
CC
> 3.2 V
> 3.2 V
> 3.2 V
> 3.2 V
> 3.2 V
AWT6278
V
RF OUT
BATT
MODE
5