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F E AT U R E S 10 - 1000 MHz 1 mA, +5 VDC 1 dB LSB, 63 dB Range 34 nSec Switching Speed 15 nSec Transition Time TTL Control 24 Pin Surface Mount Version See DA0886 for 24 Pin DIP Version
RF IN/OUT GND 24 23 PART IDENTIFICATION 1.560 32 DB 1.36 .100 TYP .040 TYP
24 13
MODEL NO. DA078 6
GaAs 6 Section Attenuator
6 BIT
22
21
20
19
18
17
16
15
RF GND OUT/IN 14 13
*
.20 .015 TYP (FLANGE)
*
*
1 DB
*
*
2 DB
*
4 DB
*
*
8 DB
*
16 DB
* *
*
* *
*
* *
*
* *
*
* *
*
* *
*
.375 TYP .60 TYP
1 12
.77 1 +5V .010 .002 TYP (LEAD)
*
2 3 GND GND 4
CONT1
**
5
CONT2
6
CONT3
7
CONT4
8
CONT5
9
CONT6
.100 TYP 1.100 CONTRASTING COLOR BEAD
.015 .002 TYP
.053 R TYP
10 11 12 GND GND GND
32DB 1DB "1" "0"
2DB "0"
4DB "0"
8DB 16DB "0" "0"
N/C = NO INTERNAL CONNECTION
.xx = .02 .xxx = .010
GUARANTEED PERFORM ANCE
I.L. (dB) VSWR
T YP I CA L P E R F OR MA NC E
at 25 C
Parameter
Operating Frequency DC Current Control Type
Min Typ Max Units
10 1 TTL 1000 5 MHz mA
Conditions
At +5 VDC Supply 6 Line Logic "0" = Thru Logic "1" = Attenuation VIH = +3.0 V VIL = +0.5 V 10 - 100 MHz 100 - 1000 MHz 1, 2, 4, 8, 16, 32 (0.25 dB +2% of Atten. Setting in dB)
1.8
8
1.6
6
Control Current
I. LOSS
High Low
Insertion Loss Attenuation
LSB Range Accuracy
1.4
4
0 0 4.2 6.3 1 0
40 40 5.5 7.5 63
A A dB dB dB dB dB
1.2
2 VSWR
1.0
0
1
4
10
40
100
400
1000
3000
FREQUENCY (MHz)
VSWR Impedance Switching Speed Transition (Rise/Fall) Time Switching (Video) Transients Intercept Points 2nd
3rd
RF Power
Operate No Damage
1.2/1 50 34 15 280 +64 +44 +12 -55 +25
1.4/1 50 OHMS nSec nSec mV dBm dBm dBm dBm C 50% TTL to 90% / 10% RF 90% / 10% or 10% / 90% RF Peak Value 70 MHz / 50 MHz 35 MHz / 50 MHz 0.1 dB Compression TA
Operating Temperature
+10 +27 +125
DA I C O In d u s t r i e s
Rev. A / Iss. 1

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