Page 1
FEATURES
5 BIT
10 - 1000 MHz
1 mA, +5 VDC
2 dB LSB, 62 dB Range
38 nSec Switching Speed
12 nSec Transition Time
TTL Control
24 Pin DIP
See DA0757 for Surface Mount Version
PART IDENTIFICATION
1.27
.20
.20
1.100
.100 TYP
.018±.002 DIA
24 PLACES
MODEL NO.
DA0857
GaAs 5 Section Attenuator
IN/OUT
GND GND GND GND GND GND GND GND GND GND
24 23 22 21 20 19 18 17 16 15 14 13
• ••••••••
•• •• •• •• ••
•••••
••
RFRF
IN/OUT
•
VSWR
12.0
2.2
2.0
10.0
8.01.8
6.01.6
1.4
4.0
2.0
1.2
1.0 0
1
.600
CONTRASTING
COLOR BEAD
TYPICAL PERFORMANCE
I.L. (dB)
1
5
10
FREQUENCY (MHz)
12
1324
at 25°C
50
I. LOSS
VSWR
100
.77
.xx = .02
.xxx = .010
1000500
3000
+5V GND
GND GND GND GND
N/C
32DB 2DB 4DB 8DB
"0" "0" "1" "0"
N/C = NO INTERNAL CONNECTION
16DB
"0"
GUARANTEED PERFORMANCE
Parameter Min Typ Max Units Conditions
Operating Frequency 10 1000 MHz
DC Current 15mA At +5 VDC Supply
Control Type TTL 5 Line
Control Current
High
Low
0 ±40 µA VIH = +3.0 V
0 ±40 µA VIL = +0.5 V
Insertion Loss 4.0 5.2 dB 10 - 100 MHz
Attenuation
LSB
Range
Accuracy
5.6 7.0 dB 100 - 1000 MHz
2dB
062dB 2, 4, 8, 16, 32
VSWR 1.2/1 1.4/1
Impedance 50 OHMS
Switching Speed 32 50 nSec 50% TTL to 90% / 10% RF
Transition (Rise/Fall) Time 18 nSec 90% / 10% or 10% / 90% RF
Switching (Video) Transients 215 mV Peak Value
Intercept Points
RF Power
2nd
Operate
No Damage
3rd
+65 dBm 70 MHz / 50 MHz
+44 dBm 35 MHz / 50 MHz
+13 +10 dBm 0.1 dB Compression
+27 dBm
Operating Temperature -55 +25 +125 °CTA
Logic “0” = Thru
Logic “1” = Attenuation
dB ± (0.25 dB ± 2% of Atten.
Setting in dB)
121110987654321
DAICO I ndustries
Rev. A / Iss. 1
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