Coaxial
Attenuator/Switch
50Ω
Bi-Phase
-55°C to 100°C
-55°C to 100°C
30mA
ZAS-3
1 to 200 MHz
Features
•
•
•
•
wideband, 1 to 200 MHz
rugged shielded case
excellent amplitude and phase unbalance
low insertion loss, 1.6 dB typ.
Maximum Ratings
Operating Temperature
Storage Temperature
Control Current
Applications
Coaxial Connections
INPUT
OUTPUT
CONTROL
3
1
2
FREQUENCY
(MHz)
IN
f
L
-f
U
1-200
DC-0.05
CON
• bi-phase modulator
• electronic attenuator
CASE STYLE: M22
Connectors
Model
Price
BNC
ZAS-3
$59.95
BRACKET (OPTION “B”)
$5.00
BRACKET (OPTION “BR”)
$1.50
Qty.
(1-9)
(1+)
(1+)
Attenuator/Switch Electrical Specifications
INSERTION LOSS
(dB)
±20 mA
Total
Mid-Band
Range
m
Typ. Max. Typ. Max.
1.4
2
1.6
2.5
MAX. INPUT PWR
(dBm)
±20 mA
1 dB
compr.
15
no
damage
30
IN-OUT
ISOLATION
(dB)
0 mA
L
M
U
Typ. Min. Typ. Min. Typ. Min.
65 50
50 40
50
35
BI-PHASE X
(±20 mA) Typ.
∆
AMP
(dB)
Total
Range
m
0.10
0.1
Phase(deg)
deviation
from 180°
Total
m
Range
0.5
1.0
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.
Outline Drawing
suggested control port biasing configuration
Typical Performance Data
Freq.
(MHz)
I. Loss ±Control 20mA
(dB)
∆
Amp
∆
Phase
at 20mA
(dB) (deg.)
_
_
_
x
1.0
2.0
5.0
10.0
16.4
24.9
31.8
46.8
49.8
62.2
77.6
93.0
100.0
108.0
123.4
138.8
154.2
169.2
184.6
200.0
1.28
1.14
1.08
1.09
1.12
1.16
1.18
1.23
1.24
1.26
1.30
1.32
1.34
1.35
1.39
1.46
1.54
1.62
1.73
1.84
σ
x
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.03
x
180.0
180.0
180.0
180.0
179.9
179.9
179.9
179.8
179.8
179.8
179.7
179.6
179.6
179.6
179.5
179.5
179.4
179.5
179.5
179.6
0.002
0.002
0.002
0.002
0.002
0.002
0.002
0.001
0.001
0.002
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.001
0.002
Isolation (dB)
(in-out) (in-
_ con) _
x
78
75
69
65
63
62
61
59
59
58
57
56
55
55
54
53
52
51
51
50
x
52
45
38
32
28
24
22
19
19
17
15
14
13
13
12
12
11
11
11
11
Input
R. Loss
(dB)
_
x
23.5
28.1
35.4
43.0
42.7
37.5
35.2
31.6
31.0
28.7
26.4
24.4
23.5
22.6
21.0
19.5
18.2
17.0
15.9
14.8
Control Attenuation (dB) Phase∆ ref at 15mA Ctrl
Input VSWR
∆
1
100 200
1
100 200
Current
1
100 200
MHz MHz MHz
MHz MHz MHz
(mA) MHz MHz MHz
deg. deg. deg.
0.0000
0.0004
0.0013
0.0032
0.0085
0.0162
0.0336
0.0567
0.0807
0.1215
0.1860
0.2459
0.3285
0.4365
0.5714
1.3114
2.0989
3.7220
7.0357
15.1415
50.3
47.0
43.6
40.7
34.7
33.0
28.2
24.5
22.0
19.1
16.1
14.2
12.5
10.8
9.3
5.6
4.2
2.9
2.0
1.4
47.8
47.3
45.7
43.3
38.0
33.5
27.9
23.9
21.2
18.2
15.2
13.3
11.5
9.9
8.5
5.2
3.9
2.8
2.0
1.5
41.7
41.2
40.5
39.0
35.6
32.0
27.0
23.1
20.5
17.5
14.6
12.8
11.1
9.6
8.2
5.1
3.9
2.9
2.2
1.8
26.3
19.0
10.3
5.7
6.3
6.6
7.2
7.5
7.7
7.5
7.1
6.5
6.3
5.7
5.1
3.3
2.3
1.3
0.5
0.0
69.1
65.6
50.0
36.8
20.9
12.3
7.0
4.7
3.9
3.0
2.4
2.1
1.8
1.6
1.4
0.8
0.6
0.3
0.2
0.0
69.7
65.4
58.2
46.4
29.7
19.1
10.3
6.0
4.3
2.9
1.8
1.4
1.1
0.9
0.7
0.3
0.3
0.1
0.0
0.0
13.6
13.5
13.3
12.9
12.5
11.7
10.5
9.3
8.3
7.1
5.8
5.0
4.3
3.6
3.1
2.0
1.6
1.3
1.2
1.1
11.6
11.6
11.5
11.3
10.9
10.3
9.2
8.1
7.3
6.2
5.1
4.5
3.8
3.3
2.8
1.9
1.6
1.3
1.2
1.1
8.1
8.1
8.0
7.9
7.7
7.4
6.8
6.1
5.6
4.9
4.2
3.7
3.2
2.8
2.5
1.7
1.5
1.3
1.2
1.1
Outline Dimensions (
inch
)
mm
A
2.25
57.15
J
3.25
82.55
B
1.38
35.05
K
.10
2.54
C
1.24
31.50
L
.40
10.16
D
.50
12.70
M
1.15
29.21
E
.150
3.81
N
1.86
47.24
F
3.100
78.74
P
.64
16.26
G
.138
3.51
H
1.238
31.45
S
wt
.150 grams
3.81
74.0
ZAS-3
INSERTION LOSS
2.5
INSERTION LOSS (dB)
ISOLATION (dB)
2.0
1.5
1.0
0.5
0.0
0
40
80
120
160
200
FREQUENCY (MHz)
100
ZAS-3
ISOLATION
60
IN-OUT
80
60
40
20
0
0
40
80
120
FREQUENCY (MHz)
160
200
IN-CON
ATTENUATION (dB)
ZAS-3
ATTENUATION
1 MHz
50
40
30
20
10
0
0.0001
100 MHz
200 MHz
0.001
0.01
0.1
1
CONTROL CURRENT (mA)
10
100
Mini-Circuits
®
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http://www.minicircuits.com
P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661
REV. OR
M96904
ZAS-3
WP/TD/CP
060116
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