50
Bi-Phase
5 to 450 MHz
Attenuator/Switch
Coaxial
ZMAS-1
ZMAS-1
INSERTION LOSS
2.8
3.0
3.2
3.4
3.6
3.8
0
90
180
270
360
450
FREQUENCY (MHz)
INS
E
RT
IO
N LO
S
S
(
d
B
)
ZMAS-1
ISOLATION
0
20
40
60
80
100
0
90
180
270
360
450
FREQUENCY (MHz)
IS
O
L
A
T
IO
N (
d
B
)
IN-OUT
IN-CON
ZMAS-1
ATTENUATION
1
10
100
0.0001
0.001
0.01
0.1
1
10
100
CONTROL CURRENT (mA)
A
TTE
NUA
TI
ON (d
B
)
5 MHz
225 MHz
450 MHz
Typical Performance Data
Freq.
(MHz)
Outline Dimensions ( )
inch
mm
Maximum Ratings
Coaxial Connections
Features
bi-phase modulator
electronic attenuator
INPUT
3
OUTPUT
1
CONTROL
2
wideband, 5 to 450 MHz
rugged, shielded case
excellent phase and amplitude unbalance
Applications
Operating Temperature
-55C to 100C
Storage Temperature
-55C to 100C
Control Current
30mA
Outline Drawing
Attenuator/Switch Electrical Specifications
5-450
DC-0.05
3.5
4
3.5
4.7
20
30
65
50
55
40
35
25
0.10
0.1
0.5
1.2
INTERNET http://www.minicircuits.com
P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661
Distribution Centers
NORTH AMERICA 800-654-7949 417-335-5935 Fax 417-335-5945 EUROPE 44-1252-832600 Fax 44-1252-837010
Mini-Circuits
Mini-Circuits ISO 9001 & ISO 14001 Certified
REV. OR
M96904
ZMAS-1
WP/TD/CP
060116
L = low range [f
L
to 10 f
L
]
M = mid range [10 f
L
to f
U
/2] U = upper range [f
U
/2 to f
U
] m= mid band [2f
L
to f
U
/2]
Performance specifications apply for input power up to 10 dB below stated 1dB compression.
FREQUENCY
(MHz)
IN-OUT
ISOLATION
(dB)
0 mA
INSERTION LOSS
(dB)
20 mA
AMP
(dB)
Phase(deg)
deviation
from 180
U
Typ. Min.
M
Typ. Min.
L
Typ. Min.
Mid-Band
m
f
L
-f
U
IN
CON
Typ. Max.
Total
Range
Typ. Max.
MAX. INPUT PWR
(dBm)
20 mA
1 dB
compr.
no
damage
Total
Range
m
Total
Range
m
BI-PHASE X
(20 mA) Typ.
I. Loss
(dB)
at 20mA
Control
Amp
(dB)
20mA
Phase
(deg.)
Isolation (dB)
(in-out) (in-con)
Input
R. Loss
(dB)
Control
Current
(mA)
Attenuation (dB)
5
MHz
225
MHz
450
MHz
Phase
ref at 15mA Ctrl
Input VSWR
_
x
_
x
_
x
_
x
_
x
_
x
5
MHz
deg.
225
MHz
deg.
450
MHz
deg.
5
MHz
225
MHz
450
MHz
A
B
C
D
E
F
G
H
1.50
1.13
1.00
.50
.155
2.345
.138
.987
38.10
28.70
25.40
12.70
3.94
59.56
3.51
25.07
J
K
L
M
N
P
S
wt
2.50
.10
.31
.75
1.19
.66
.150 grams
63.50
2.54
7.87
19.05
30.23
16.76
3.81
40.0
suggested control port biasing configuration
CASE STYLE: M21
Connectors
Model
Price
Qty.
SMA
ZMAS-1
$66.95
(1-9)
BRACKET (OPTION "B")
$5.00
(1+)
BRACKET (OPTION "BR")
$1.50
(1+)
5 . 0
3.27 0.025
0.02
179.9
7 4
5 0
11.8
0.0000
68.1
50.0
41.3
-52.4 124.7
108.2
2 . 9
2 . 9
2 . 6
9 . 5
2.93 0.019
0.02
179.9
6 8
4 4
13.4
0.0001
62.8
49.6
41.6
-9.9 119.7
103.2
2 . 9
2 . 9
2 . 6
19.5
2.92 0.017
0.02
179.9
6 2
3 8
14.3
0.0002
56.7
49.9
41.3
-18.0 114.6
102.4
2 . 9
2 . 9
2 . 6
35.0
2.97 0.017
0.02
179.9
5 9
3 3
14.5
0.0006
51.7
50.5
41.3
-20.7 101.4
95.5
2 . 9
2 . 9
2 . 6
39.5
2.98 0.017
0.03
179.9
5 9
3 2
14.5
0.0032
46.6
47.3
40.4
-10.7
5 8 . 4
7 6 . 3
2 . 9
2 . 9
2 . 6
49.5
3.00 0.017
0.03
179.9
5 7
3 0
14.4
0.0058
43.8
44.3
39.0
-6.4
4 5 . 6
6 0 . 3
2 . 9
2 . 9
2 . 6
74.0
3.00 0.019
0.04
179.8
5 5
2 7
14.1
0.0116
39.8
39.6
36.0
-0.4
2 9 . 9
4 3 . 3
2 . 8
2 . 9
2 . 6
7 5 . 1
3 . 0 0 0 . 0 1 8
0 . 0 3
1 7 9 . 8
5 5
2 6
1 4 . 1
0 . 0 1 8 4
3 6 . 6
3 6 . 1
3 3 . 2
3 . 3
2 4 . 8
3 3 . 3
2 . 8
2 . 8
2 . 5
107.4
3.10 0.019
0.04
179.7
5 3
2 3
14.3
0.0327
32.6
31.6
29.1
5 . 9
18.3
23.7
2 . 8
2 . 7
2 . 4
141.8
3.18 0.019
0.04
179.7
5 1
2 1
14.6
0.0486
29.5
28.4
26.2
6 . 9
15.6
19.4
2 . 7
2 . 7
2 . 4
176.3
3.24 0.021
0.04
179.6
4 9
1 9
14.5
0.0787
25.9
24.6
22.6
7 . 6
13.3
14.8
2 . 6
2 . 5
2 . 2
210.8
3.28 0.021
0.04
179.5
4 8
1 8
14.6
0.1081
23.5
22.2
20.3
7 . 9
12.2
12.8
2 . 5
2 . 4
2 . 1
225.3
3.29 0.023
0.04
179.5
4 8
1 8
14.7
0.1975
19.1
17.8
16.1
7 . 8
10.0
9 . 7
2 . 2
2 . 2
1 . 9
244.2
3.30 0.024
0.04
179.4
4 7
1 7
14.8
0.3085
16.0
14.8
13.3
7 . 4
8 . 7
7 . 9
2 . 0
1 . 9
1 . 7
278.7
3.29 0.024
0.04
179.3
4 6
1 6
15.1
0.5100
12.9
11.7
10.6
6 . 5
7 . 3
6 . 0
1 . 7
1 . 7
1 . 4
313.2
3.30 0.026
0.05
179.2
4 6
1 6
15.1
0.8548
10.1
9 . 2
8 . 4
5 . 3
5 . 5
4 . 4
1 . 5
1 . 4
1 . 2
347.7
3.33 0.029
0.05
179.1
4 5
1 6
14.8
1.7555
7 . 2
6 . 0
6 . 1
3 . 3
3 . 4
2 . 5
1 . 3
1 . 2
1 . 1
381.0
3.40 0.034
0.05
179.1
4 4
1 5
15.0
2.6670
5 . 4
5 . 1
4 . 9
2 . 0
2 . 0
1 . 3
1 . 3
1 . 2
1 . 2
415.5
3.50 0.041
0.06
179.0
4 3
1 5
14.7
8.1232
4 . 0
4 . 0
4 . 0
0 . 5
0 . 5
0 . 4
1 . 5
1 . 4
1 . 4
450.0
3.58 0.044
0.06
178.9
4 3
1 5
13.7
15.1218
3 . 5
3 . 6
3 . 6
0 . 0
-0.1
0 . 0
1 . 6
1 . 5
1 . 4
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