AWM6432
APPLICATION INFORMATION
Transmit Disable and Attenuator Control
The power amplifier is disabled by setting VBIAS applying a logic high to VATTN; the PAexhibits nominal
below +0.7 V. The step attenuator is enabled by gain when a logic low is applied to VATTN.
V
CC
VCC
2.2 µF
1 µF
2.2 µF
0.01 µF
1
2
3
4
5
6
12
11
10
9
V
CC
V
CC
RF IN
RFIN
GND
GND
RFOUT
GND
RF OUT
V
BIAS
V
V
V
BIAS
8
V
CC
CC
GND
DET
100 pF
7
V
ATTN
DETOUT
ATTN
0.1 µF
4.7 K
GND
at slug
0.1 µF
Figure 16: Application Circuit
PRELIMINARY DATA SHEET - Rev 1.1
8
11/2006