MODEL NO.
D A 0 9 5 6
F E AT U R E S
20 - 400 MHz
0.5 dB LSB, 31.5 dB Range
5 nSec Transition Time
28 nSec Switching Speed
Constant Phase
TTL Control
38 Pin DIP
6 BIT
D A I C O
I n d u s t r i e s
Rev. A / Iss. 1
T Y P I C A L P E R F O R M A N C E
a t 2 5
C
I. LOSS
VSWR
FREQUENCY (MHz)
VSWR
I.L. (dB)
1.4
1.3
1.2
1.1
1.0
8
6
4
2
0
1000
400
100
40
10
4
1
Schottky Diode
6 Section Attenuator
.xx = .02
.xxx = .010
COLOR BEAD
CONTRASTING
1.800
.100 TYP
1
19
20
38
.800
PART
IDENTIFICATION
.24
2.00 MAX
1.00 MAX
.20
.018
.002 DIA
38 PLACES
Parameter
Min Typ
Max Units
Conditions
Operating Frequency
20
400
MHz
DC Current
340
550
mA
At +5 VDC Supply
Control Type
TTL
6 Line
Logic "0" = Thru
Logic "1" = Attenuation
Control Current
High
0
30
A
VIH = +2.7 V
Low
-30
-100
A
VIL = +0.5 V
Insertion Loss
5
6
dB
20 - 100 MHz
6
7
dB
100 - 400 MHz
Attenuation
LSB
0.5
dB
Range
0
31.5
dB
0.5, 1, 2, 4, 8, 16
Accuracy
dB
(0.25 dB +3% of Atten.
Setting in dB)
Vs. Phase
-8.0
-3.5
+2.0
DEG
VSWR
1.1/1
1.35/1
Impedance
50
OHMS
Switching Speed
28
35
nSec
50% TTL to 90% / 10% RF
Transition (Rise/Fall) Time
5
nSec
90% / 10% or 10% / 90% RF
Switching
(Video)
Transients
36
100
mV
Peak Value
Intercept Points
2nd
+73
dBm
214 MHz / 127 MHz
3rd
+32
dBm
107 MHz / 127 MHz
RF Power
Operate
+12
+10
dBm
0.1 dB Compression
No Damage
+20
dBm
Operating Temperature
-55
+25
+85
C
TA
G U A R A N T E E D P E R F O R M A N C E
"0"
CONT6
16DB
+5V
GND
32DB
1DB
4DB
8DB
CONT1
CONT2
CONT4
CONT5
GND
"1"
"0"
"0"
"0"
OUT/IN
RF
RF
IN/OUT
GND
GND
38
37 36 35
21
20
15
13
11
7
5
3
2
1
34 33 32 31 30 29 28 27 26 25 24 23 22
19
18
17
16
4
6
GND
14
GND
2DB
CONT3
"0"
9
8
GND
10
GND
12
GND
GND
N/C
8 DB
16 DB
0.5 DB
2 DB
4 DB
1 DB
N/C = NO INTERNAL CONNECTION
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