FE AT UR ES
440 - 480 MHz
0.25 dB LSB
Phase Vs. Atten.
±5
Degrees
100 nSec Switching Speed
MODEL NO.
C AT82048
Attenuator 8 Section
8 BIT
PART IDENTIFICATION
RF
IN/OUT GND
24
23
GND
22
GND
21
GND
20
GND
19
GND
18
GND
17
GND
16
GND
15
RF
GND OUT/IN
14
13
1.27
32dB
.20
.20
.018
±.002
DIA
24 PLACES
.25dB
.5dB
1dB
2dB
4dB
8dB
16dB
1.100
.100 TYP
1
12
1
+5V
.77
2
GND
.600
24
13
3
4
C1
C2
32dB .25dB
"1"
"0"
5
C3
.5dB
"0"
6
C4
1dB
"0"
7
C5
2dB
"0"
8
C6
4dB
"0"
9
C7
8dB
"0"
10
C8
16dB
"0"
11
GND
12
-15V
CONTRASTING
COLOR BEAD
.xx = .02
.xxx = .010
G U ARAN TE ED P ERF OR MA NCE
Parameter
Operating Frequency
DC Current
Min Typ Max Units
440
480
200
150
TTL
High
Low
Conditions
At +5 VDC Supply
At -15 VDC Supply
8 Line
Logic “1” = Attenuation
VIH = +2.7 V
VIL = +0.5 V
I.L. (dB)
MHz
mA
mA
VSWR
TYPI CAL P E RF O RMA N C E
a t 2 5
°C
Control Type
Control Current
Insertion Loss
Attenuation
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
20
18
16
14
12
10
8
6
4
2
0
10
40
100
400
1000
3000
VSWR
I. Loss
5.2
LSB
Range
Accuracy
0
±10
±10
5.9
0.25
63.75
µA
µA
dB
dB
dB
dB
Monotonicity
Phase Vs. Atten
VSWR
Impedance
Switching Speed
Transition (Rise/Fall) Time
Switching
(Video)
Transients
Intercept Points
RF Power
2nd
3rd
Operate
No Damage
±2
±5
1.2/1
50
70
8
0.63
+55
+34
DEG
DEG
1.5/1
100
1.0
.25, 0.5, 1, 2, 4, 8, 16, 32 dB
0.25 dB
±20%
0.5 dB
±10%
1.0 dB
±5%
All Other
±3%
Each Bit
Total
FREQUENCY (MHz)
Operating Temperature
-30
+25
+20
+23
+75
OHMS
nSec
50% TTL to 90% / 10% RF
nSec
10% / 90% or 90% / 10% RF
mVp-p External BPF, 5 Section,
BW = 460
±
3 MHz, 0.43 mV
dBm
dBm
dBm
0.1 dB Comp. @ 460MHz
dBm
°C
TA
DA I C O
In d u s t r i e s
Rev. - / Iss. 1