Control A1
0 / +3 V
+5 V
+5 V
Control A2
0 / +3 V
1uF
2K Ohms
1uF
1K Ohms
0.1uF
2K Ohms
470pF
470pF
RF Output
(75 Ohms)
1500pF
1K Ohms
0.1uF
10uH
470pF
V
ATTN
ATT
IN
(+)
A1
OUT
(+)
A1
IN
(+)
Vg1
Vg2
I
SET2
22
A2
OUT
(-)
21
A2
IN
(-)
ATT
OUT
(-)
GND
CMOS
N/C
19
18
17
20
23
3
2
1
2K Ohms
2K Ohms
N/C
27
ATT
OUT
(+)
26
A2
IN
(+)
A2
OUT
(+)
24
25
GND
GND
28
RF Input
(75 Ohms)
1000pF
4
5
6
7
1000pF
Turns
Ratio
1:2
1.2K Ohms
Turns
Ratio
2:1
3.9 Ohms
8
I
SET1
A1
IN
(-)
A1
OUT
(-)
ATT
IN
(-)
V
CMOS
CLK
DAT
En
ARA2004
1.2K Ohms
1000pF
10
Data
Clock
Enable
Figure 4: Test Circuit
9
Data Sheet - Rev 2.1
07/2005
1000pF
11
12
Toko Balun
616PT-1030
470pF
10uH
1uF
1uF
13
14
N/C
16
N/C
15
0.1uF
0.1uF
+5 V
+5 V
Note:
Tx Enable: Control A1 and Control A2 = +3V
Tx Disable: Control A1 and Control A2 = 0V
ARA2004
7
ANADIGICS [ ANADIGICS, INC ]
