MODEL NO.
D AT 8 6 1 9 8
F E AT U R E S
600 - 800 MHz
SMA Connectors
Low Loss, 3.4 dB Typical
Phase Compensated
8 BIT
D A I C O
I n d u s t r i e s
Rev. - / Iss. 1
Attenuator 8 Section
SMA FEMALE
.06
1.50
.03
1.300
.25
J1
.15
.05
.34
.106 DIA THRU
4 PLACES
CONNECTOR
2 PLACES
.025
.002 DIA
12 PLACES
.20
1.00
.03
1.75
.03
J2
-15V
GND
16 dB
32 dB
2 dB
1 dB
4 dB
8 dB
.5 dB
.25 dB
+15V
GND
1.550
.10
PART IDENTIFICATION
.10
.25
2 PLACES
.xx = .02
.xxx = .010
0.38
.02
T Y P I C A L P E R F O R M A N C E
a t 2 5
C
VSWR
3000
1000
400
100
1.0
0
2.4
7
VSWR
I.L. (dB)
6
2.2
5
2.0
4
1.8
3
1.6
2
1.4
1
1.2
FREQUENCY (MHz)
10
40
I. LOSS
"0"
"0"
"0"
"0"
"0"
"0"
"1"
C8
C7
C6
C4
C3
C2
C1
+15V
RF
IN/OUT
RF
IN/OUT
32 dB
16 dB
8 dB
2 dB
1 dB
.5 dB
.25 dB
.25 dB
.5 dB
1 dB
2 dB
8 dB
16 dB 32 dB
J2
J1
GND
-15V
GND
"0"
C5
4 dB
4 dB
Parameter
Min Typ
Max Units
Conditions
Operating Frequency
600
800
MHz
DC Current
12.7
20
mA
At +15 VDC Supply
2.2
50
mA
At -15 VDC Supply
Control Type
TTL
8 Line
Logic "0" = Thru
Logic "1" = Attenuation
Control Current
High
10
100
A
VIH = +2.7 V
Low
10
100
A
VIL = +0.5 V
Insertion Loss
3.4
4.5
dB
Attenuation
LSB
.25
dB
Range
0
63.75
dB
.25, .5, 1, 2, 4, 8, 16, 32
Accuracy
dB
2% of Attenuation
@ 700 MHz
Setting in dB
Attenuation Vs. Phase
1
5.636 DEG
@ 700 MHz
VSWR
1.26/1
1.3/1
Impedance
50
OHMS
Switching Speed
50
100
nSec
50% TTL to 90% / 10% RF
Transition (Rise/Fall) Time
22
nSec
10% / 90% or 90% / 10% RF
Switching
(Video)
Transients
45
mV
Peak Value
Intercept Points
2nd
71
dBm
1150 MHz / 750 MHz
3rd
50
dBm
575 MHz / 750 MHz
RF Power
Operate
+21
+18
dBm
0.1 dB Compression
No Damage
+27
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
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