ARA1400S12 Datasheet, PDF (4/8 Pages) ANADIGICS, Inc – CATV Reverse Amplifier with step Attenuator

ARA1400S12
CATV REVERSE AMPLIFIER WITH STEP ATTENUATOR
Advanced Product Information Rev. 2
TEST CIRCUIT
Vdd1
RF_IN
Shutdown
#1
F
GND
1
2
.01uF 1uF
10uH
3.3K
3
.1uF
4
20 Ω ₅
GND GND _{600 Ω}
1pF
.1uF
1.8K
1uF _1uF ⁶
GND
7
.1uF 8
GND
GND
9
0.1uF
10
0.1uF
5K
5K
1uF
3.9 Ω
11
12
13
14
1uF
GND
GND
REVERSE AMP
.1uF
28
27
GND
.1uF
26
25
10K
5K
24
23 _1uF
GND 0.1uF 1uF ^{620 Ω}
22
5K
0.1uF
5K
21 _.1uF
20
GND
GND
19
18 ^{20 Ω}
GND
.1uF
3.3K
17
10uH
1uF _1.8K
16
15
GND
Output Switch
Control
Shutdown #2
RF_OUT
Vdd2
.01uF 1uF
GND
5V DIGITAL
32 dB
16 dB
+5V
8 dB
4 dB
SW4
SW3
SW2
SW1
DIP SWITCH LOGIC TABLE
Attn (dB) 4 8 12 16 20 24 28 32 36 40 44 48 52 56 60
SW 1
XOXOXOXOXOXOXOX
SW 2
OX XOOX XOOX XOOX X
SW 3
OOOX X X XOOOOX X X X
SW4
OOOOOOOX X X X X X X X
O = Open (0 Vdc)
X = Closed (+5 Vdc)
A
4