AWT6282 Datasheet, PDF (5/8 Pages) ANADIGICS, Inc – HELP3TM 1700/WCDMA 3.4 V/28.5 dBm HSPA Linear Power Amplifier Module

APPLICATION INFORMATION
AWT6282
To ensure proper performance, refer to all related
Application Notes on the ANADIGICS web site:
http://www.anadigics.com
logic level (see Operating Ranges table) to the VMODE
voltages. 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 the VENABLE, VMODE1 and VMODE2
voltages.
Bias Modes
The power amplifier may be placed in either a Low Bias
mode or a High Bias mode by applying the appropriate
Three operating modes are recommended to optimize
current consumption. High Bias/High Power operating
mode is for POUT levels > 16 dBm. At ~16dBm - 7
dBm, the PA should be “Mode Switched” to Medium
Power/Medium Bias Mode. For POUT levels < ~8 dBm,
the PA can be switched to Low Power/Low Bias Mode
for even lower quiescent current consumption.
APPLICATION
WCDMA - low power
(Low Bias Mode)
WCDMA - med power
(Med Bias Mode)
WCDMA - high power
(High Bias Mode)
Optional lower VCC in
low power low bias
mode
Shutdown
POUT
LEVELS
Table 5: Bias Control
BIAS
MODE
VENABLE
VMODE1
< +8 dBm
Low +2.4 V +2.4 V
7 POUT <
+16 dBm
Low +2.4 V +2.4 V
> +16 dBm High +2.4 V 0 V
< +7 dBm
Low +2.4 V +2.4 V
-
Shutdown 0 V
0V
VMODE2
+2.4 V
0V
0V
2.4 V
0V
VCC
3.2 - 4.2 V
3.2 - 4.2 V
3.2 - 4.2 V
1.5 V
3.2 - 4.2 V
VBATT
> 3.2 V
> 3.2 V
> 3.2 V
> 3.2 V
> 3.2 V
VBATT
C5
2.2 µF
RF IN
VMODE2
VMODE1
VENABLE
C1
0.01µF
1 _VBATT
2 _RFIN
3 _VMODE2
4 _VMODE1
5 _VENABLE
C2
0.01µF
VCC ¹⁰
GND ⁹
RFOUT ⁸
GND ⁷
GND ⁶
GND
at slug
C3
0.01µF
10K 
Optional
pull-down
Figure 3: Application Circuit Schematic
Data Sheet - Rev 2.3
11/2008
VCC
C4
2.2µF ceramic
RF OUT
5