AWB7228
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
REF
voltage.
V
RE F
C15 and C11: See
not
note
C15 an C1
1
C15
0.1
µF
C11
1000 pF
C4
1000 pF
V
RE F
GND
GND
Vcc1
RF
I N
4.7 KΩ
GND
V
DET
1
2
3
4
5
6
7
14
13
12
GND
GND
RF
OUT
Vcc2
GND
GND
GND
C7
1000 pF
C8
0.1
µF
C9*
10
µF
C10*
Vcc2
C12*
RF
OUT
Vcc1
C1*
C2*
100
µ
F
C3
10
µF
0.1
µF
AWB7228
11
10
9
8
RF
I N
100
µF
100
µF
V
DET
R2
100 KΩ
C6
0.1
µF
R1
* Optional
Note:
To achieve the RF Switching Time specifications listed in Table 4 the maximum recommended
capacitance on the V
REF
line is 0.01µF.
The noise on the V
REF
line should be kept as low as
possible to minimize required capacitance.
Figure 3: Application Circuit Schematic
5
PRELIMINARY DATA SHEET - Rev 1.2
09/2012
ANADIGICS [ ANADIGICS, INC ]
