FE AT UR ES
1800 - 4200 MHz
SPACE Application
Hermetic Package
Radiation Tolerant, 100 K Rad
Surface Mount
MODEL NO.
CAT480 49
GaAs 4 Section Attenuator
4 BIT
RF
RF
IN/OUT GND GND GND GND GND GND GND GND GND GND IN/OUT
24
23
22
21
20
19
18
17
16
15
14
13
PART IDENTIFICATION
1.27
.015
±.002
DIA
24 PLACES
.20
.070
•
1 dB
•
•
•
2 dB
• ••
•
•
•
4 dB
•
•
•
8 dB
.100
TYP
•
•
•
•
•
•
•
•
•
24
13
.77
1
12
• •
1
2
3
4
+5V GND GND GND
5
"1"
6
"0"
7
"0"
8
"0"
CONT1 CONT2 CONT3 CONT4
• •
.325
TYP
CONTRASTING
COLOR BEAD
.xx = .02
.xxx = .010
9
10
11
12
GND GND GND GND
G U AR ANT EE D PE RF ORM A NCE
Parameter
I.L. (dB)
Min Typ Max Units
1800
0.8
CMOS
4200 MHz
5.0 mA
Conditions
At +5 VDC Supply
4 Line
Logic “0” = Thru
Logic “1” = Attenuation
3 - 5 Volts
0 - 0.5 Volts
Vs. Frequency
1, 2, 4, 8
±(0.25
dB + 5% of Atten
Setting in dB)
VSWR
TYPIC AL P E R F O R MA N C E
at 25
°C
Operating Frequency
DC Current
Control Type
2.0
10
Control Current
Insertion Loss
Insertion Loss Flatness
Attenuation
High
Low
0
0
5.0
1
0
1.8
8.0
±40
±40
6.0
±0.2
15
LSB
Range
1.6
6.0
I. LOSS
1.4
4.0
Accuracy
Flatness
µA
µA
dB
dB
dB
dB
dB
dB
OHMS
nSec
nSec
mV
dBm
dBm
dBm
dBm
°C
°C
VSWR
Impedance
Switching Speed
VSWR
1.30/1
50
27
12
75
+70
+41
+22
+25
±0.2
1.7/1
50
1.2
2.0
Transition (Rise/Fall) Time
Switching
(Video)
Transients
Intercept Points
2nd
100
400
1000
4000
10000
1.0
0
3rd
+67
+38
FREQUENCY (MHz)
RF Power
Operate
No Damage
Operating Temperature
0
Non-Operating Temperature
-34
+18
+23
+65
+95
50% Control Signal
90% / 10% RF
10% / 90% or 90% / 10% RF
Peak Value
1950 / 750 MHz Inputs
975 / 750 MHz Inputs
0.1 dB Compression
TA
TA
DA I C O
In d u s t r i e s
Rev. - / Iss. 1
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