An MCE Company
C O R P O R A T I O N
KEY:
Inches[Millimeters] .XX ±.03 .XXX ±.010 [.X ±0.8 .XX ±0.25]
60 South Jefferson Road, Whippany, NJ 07981
Tel: 973-887-8100 Fax: 973-884-0445
E-Mail: kdisales@aol.com
See us on the web @ www.kditriangle.com
10/98
ATTENUATORS, PIN DIODE
“PHASE-FREE” 0.25–18 GHz
SERIES DF & FF
DF Series
Least
Significant
Bit dB
Note 3
.125
.125
.125
.125
.125
.125
.125
.125
VSWR
For All
Values of
Atten.
Maximum
1.5
1.5
1.5
1.5
1.5
1.75
1.8
2.2
Insertion
Loss
Maximum
dB
4.5
3.0
4.0
3.5
3.0
3.75
4.25
5.5
Maximum Phase
Shift
± Deg.
0–20 dB
10
5
10
6
10
12
12
15
Analog
Model
No.
DF-18
DF-32
DF-36
DF-45
DF-47
DF-62
DF-73
DF-74
Digital
Model*
No.
FF-18
FF-32
FF-36
FF-45
FF-47
FF-62
FF-73
FF-74
* Add Prefix “2” for Linearization
Add Suffix “TT” for Temp Comp; -55 to +85
8
c
Frequency
Range
GHz
0.25–0.5
0.95–1.25
1.0–2.0
1.7–2.4
2.0–4.0
4.0–8.0
7.0–12.4
8.0–18.0
Atten.
Range
DF
FF
Outline
4
4
6
6
6
5
5
5
Outline
1
1
3
3
3
2
2
2
Maximum dB
32
32
32
32
32
32
32
32
20–32 dB
15
7.5
15
10
15
15
15
20
SPECIFICATIONS
C
A
SMA
B
D
A/2
[TYP.
F
NOTE:EITHER
E
0.20[5,1]
0.125[3,18] DIA THRU
0.10[2,5]
.56[14,22]
G
GND
-15V
+15V
CON-
R
ANALOG MODELS (FF SERIES)
0
2
5
8
10
0
5
10
15
20
30
32
25
CONTROL VOLTAGE
(V)
A
(
NON
LINEARIZED
LINEARIZED
BEST FIT
STRAIGHT
LINE
TYPICAL CURVE OF ATTENUATION
VS CONTROL VOLTAGE
FIG. 1
0.5 dB
TYPICAL CURVE OF FF-18 OR DF-18
AT MAX. ATTENUATION (32 dB)
TYPICAL CURVE OF FF-45 OR DF-45
AT MAX. ATTENUATION (32 dB)
TYPICAL CURVE OF FF-18 OR DF-18
AT 20 dB ATTENUATION
TYPICAL CURVE OF FF-45 OR DF-45
AT 20 dB ATTENUATION
REF. PHASE AT ZERO ATTENUATION
FOR FF-18 OR DF-18 AND FF-45 OR DF-45
-15
-12
-9
-6
-3
0
+3
+6
+9
+12
+15
Fmin
F0
Fmax
FREQUENCY
PHASE SHIFT VS FREQUENCY
AT VARIOUS ATTENUATION LEVELS
T
(