FE AT UR ES
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
PART
IDENTIFICATION
2.00 MAX
MODEL NO.
DA 0956
Schottky Diode
6 Section Attenuator
6 BIT
RF
RF
IN/OUT
OUT/IN
38 GND
GND 20
37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21
• • • • • • • • •• • • • • • •
.018
±.002
DIA
38 PLACES
16 DB
0.5 DB
1 DB
2 DB
4 DB
8 DB
.24
.20
•
1.800
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
CONTRASTING
COLOR BEAD
1
.100 TYP
••
19
•
5
32DB
"1"
6
7
1DB
"0"
8
9
2DB
"0"
10
11
4DB
"0"
12
13
8DB
"0"
14
15 16 17 18 19
N/C
GND
16DB
"0"
GND
.800
38
20
1.00 MAX
1 2 3 4
+5V GND
CONT1 GND CONT2 GND CONT3 GND CONT4 GND CONT5 GND CONT6
N/C = NO INTERNAL CONNECTION
.xx = .02
.xxx = .010
G U AR ANT EE D P E RF ORMA NCE
I.L. (dB)
VSWR
Parameter
Min Typ Max Units
20
340
TTL
400
550
MHz
mA
Conditions
At +5 VDC Supply
6 Line
Logic “0” = Thru
Logic “1” = Attenuation
VIH = +2.7 V
VIL = +0.5 V
20 - 100 MHz
100 - 400 MHz
0.5, 1, 2, 4, 8, 16
±
(0.25 dB +3% of Atten.
Setting in dB)
TY PI CA L PE R F O RM A N C E
at 25
°C
1.4
8
Operating Frequency
DC Current
Control Type
Control Current
1.3
6
High
Low
Insertion Loss
I. LOSS
1.2
4
Attenuation
LSB
Range
Accuracy
Vs. Phase
0
0
-30
5
6
0.5
31.5
30
-100
6
7
µA
µA
dB
dB
dB
dB
dB
DEG
OHMS
nSec
nSec
mV
dBm
dBm
dBm
dBm
°C
-8.0
1.1
2
VSWR
1.0
0
1
4
10
40
100
400
1000
FREQUENCY (MHz)
VSWR
Impedance
Switching Speed
Transition (Rise/Fall) Time
Switching
(Video)
Transients
Intercept Points
2nd
3rd
RF Power
Operate
No Damage
-3.5
1.1/1
50
28
5
36
+73
+32
+12
+25
+2.0
1.35/1
35
100
Operating Temperature
-55
+10
+20
+85
50% TTL to 90% / 10% RF
90% / 10% or 10% / 90% RF
Peak Value
214 MHz / 127 MHz
107 MHz / 127 MHz
0.1 dB Compression
TA
DA I C O
In d u s t r i e s
Rev. A / Iss. 1
DAICO [ DAICO INDUSTRIES, INC. ]
