Control A1
0 / +3 V
+5 V
Control A2
0 / +3 V
+5 V
1uF
2K Ohms
2K Ohms
1K Ohms
0.1uF
2K Ohms
10uH
470pF
1000pF
RF Input
(75 Ohms)
Turns
Ratio
1:2
1.2K Ohms
1000pF
2
3
4
5
6
7
8
1
1uF
1K Ohms
0.1uF
32 dB
16 dB
8 dB
+5 V
4 dB
PRELIMINARY DATA SHEET - Rev 1.3
08/2001
GND
V
ATTN
ATT
IN
(+)
A1
OUT
(+)
GND
A1
IN
(+)
Vg1
I
SET1
A1
IN
(-)
GND
A1
OUT
(-)
ATT
IN
(-)
32 dB
16 dB
ARA2005
GND
GND
28
27
Figure 4: Test Circuit
ATT
OUT
(+)
26
A2
IN
(+)
GND
A2
OUT
(+)
Vg2
I
SET2
A2
OUT
(-)
GND
A2
IN
(-)
ATT
OUT
(-)
4 dB
25
24
23
22
21
20
19
18
17
16
2K Ohms
470pF
470pF
Turns
Ratio
2:1
RF Output
(75 Ohms)
1500pF
3.9 Ohms
9
10
1.2K Ohms
1000pF
1000pF
10uH
1uF
11
12
13
14
Toko Balun
616PT-1030
470pF
8 dB
15
0.1uF
Note:
Tx Enable: Control A1 and Control A2 = +3V
Tx Disable: Control A1 and Control A2 = 0V
ARA2005
7
ANADIGICS [ ANADIGICS, INC ]
