FE AT UR ES
DC - 2000 MHz
< 1 mA,
±5
VDC
3 dB LSB, 30 dB Range
30 nSec Switching Speed
TTL Control
24 Pin DIP
MODEL NO.
D AT41994
GaAs 4 Section Attenuator
4 BIT
PART IDENTIFICATION
1.27
"0"
"0"
CONT
CONT
3dB GND 6dB GND GND
24
23
22
21
20
"0"
"1"
CONT
CONT
GND 9dB GND 12dB
16
15
14
13
-5V
19
GND
18
+5V
17
.22
.18
•
1.100
.100 TYP
.018±.002 DIA
24 PLACES
•
3dB
• •
•
6dB
9dB
•
12dB
•
• •
•
•
•
• •
•
•
•
• •
• •
12
RF2
1
12
.600
24
13
.77
1
RF1
.xx = .02
.xxx = .010
• •
2
3
4
5
6
7
8
9
10
11
GND GND GND GND GND GND GND GND GND GND
CONTRASTING
COLOR BEAD
G U ARANT E ED P ERF OR MANCE
I.L. (dB)
VSWR
TYPI CA L P E RF O R MA N C E
a t 2 5
°C
Parameter
Operating Frequency
DC Current
Control Type
Min Typ Max Units
DC
0.53
0.01
TTL
High
Low
Conditions
At +5 VDC Supply
At -5 VDC Supply
4 Line
Logic “1” = Attenuation
VIH = +5.0 V
VIL = 0 V
2.0
5
2000
30
3
MHz
mA
mA
1.8
4
Control Current
I. LOSS
1.6
3
Insertion Loss
Attenuation
LSB
Range
1.0
1.0
3.1
3
0
±10
±10
4.0
30
1.4
2
Accuracy
µA
µA
dB
dB
dB
dB
3, 6, 9, 12
±
(0.25 dB +3% of Atten.
Setting in dB)
1.2
1
VSWR
1.0
0
1
4
10
40
100
400
1000
3000
VSWR
Impedance
Switching Speed
Transition (Rise/Fall) Time
Switching
(Video)
Transients
Intercept Points
2nd
3rd
FREQUENCY (MHz)
RF Power
Operate
No Damage
1.25/1
50
30
10
30
+68
+32
+20
-55
+25
1.7/1
50
OHMS
nSec
nSec
mV
dBm
dBm
dBm
dBm
°C
50% TTL to 90% / 10% RF
90% / 10% or 10% / 90% RF
Peak Value
1700 / 700 MHz
850 / 750 MHz
0.1 dB Compression @ 10 MHz
TA
Operating Temperature
+10
+17
+125
DA I C O
In d u s t r i e s
Rev. N/D / Iss. 1
DAICO [ DAICO INDUSTRIES, INC. ]
