MODEL NO.
D AT 4 1 9 9 4
F E AT U R E S
DC - 2000 MHz
< 1 mA,
5 VDC
3 dB LSB, 30 dB Range
30 nSec Switching Speed
TTL Control
24 Pin DIP
4 BIT
D A I C O
I n d u s t r i e s
Rev. N/D / Iss. 1
COLOR BEAD
CONTRASTING
.600
.100 TYP
.018
.002 DIA
24 PLACES
PART IDENTIFICATION
.22
1
12
13
24
.18
.77
1.100
1.27
GaAs 4 Section Attenuator
.xx = .02
.xxx = .010
RF1
GND GND
GND GND
RF2
GND
GND GND
GND
GND
GND
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
GND
CONT
3dB
"0"
"0"
CONT
6dB
"0"
CONT
9dB
"1"
CONT
12dB
+5V
-5V
GND GND GND GND GND
3dB
6dB
9dB
12dB
Parameter
Min Typ
Max Units
Conditions
Operating Frequency
DC
2000
MHz
DC Current
0.53
30
mA
At +5 VDC Supply
0.01
3
mA
At -5 VDC Supply
Control Type
TTL
4 Line
Logic "1" = Attenuation
Control Current
High
1.0
10
A
VIH = +5.0 V
Low
1.0
10
A
VIL = 0 V
Insertion Loss
3.1
4.0
dB
Attenuation
LSB
3
dB
Range
0
30
dB
3, 6, 9, 12
Accuracy
dB
(0.25 dB +3% of Atten.
Setting in dB)
VSWR
1.25/1
1.7/1
Impedance
50
OHMS
Switching Speed
30
50
nSec
50% TTL to 90% / 10% RF
Transition (Rise/Fall) Time
10
nSec
90% / 10% or 10% / 90% RF
Switching
(Video)
Transients
30
mV
Peak Value
Intercept Points
2nd
+68
dBm
1700 / 700 MHz
3rd
+32
dBm
850 / 750 MHz
RF Power
Operate
+20
+10
dBm
0.1 dB Compression @ 10 MHz
No Damage
+17
dBm
Operating Temperature
-55
+25
+125
C
TA
G U A R A N T E E D P E R F O R M A N C E
3000
1000
400
100
40
10
4
1
1.0
1.2
1.4
1.6
1.8
2.0
0
1
2
3
4
5
VSWR
I.L. (dB)
FREQUENCY (MHz)
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
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