50
TTL Control, Pin Diode
10 to 1000 MHz
Digital Step Attenuator
Precision
ZFAT-4816
CASE STYLE: SSS173
Outline Dimensions ( )
inch
mm
Maximum Ratings
Features
Operating Temperature
-55C to 100C
Storage Temperature
-55C to 125C
Input Power
15 dBm
DC Voltage
5.5 V
TTL
5.5V
Outline Drawing
Digital Step Attenuator Electrical Specifications
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
M97802
ZFAT-4816
DJ/VV/CP
051202
MODEL
NO.
FREQUENCY
(MHz)
PRIMARY ATTENUATION STEPS
(dB)
@TTL CONTROL PORT
ATTENUATION
(dB)
VSWR
(:1)
f
L
f
U
#1
#2
#3
(1,1,1)**
Nom.
(0,0,0)
Max.
L
M
U
ZFAT-4816
10
1000
40.4
80.4
160.5
28.0
4.0
1.6
1.4
1.5
Applications
** Total attenuation above thru-loss.
1. Step accuracy is specified for basic steps. For combination of steps accuracy is additive.
2. Thru-loss is minimum insertion loss with all attenuation elements bypassed (All TTL controls state are Low)
Additional Specifications
DC Voltage
+5V
DC Current
12mA max.
Switching Time (50% TTL to within specified
accuracy of the next-selected attenuation step,
and to within 0.1 dB of steady-state Thru-Loss)
10s typ., 15s max.,
TTL Input High Threshold
2V min
TTL Input Low Threshold
0.8V max.
TTL Toggle Rate
50 kHz typ.
1dB Compression
0 dBm (10-100 MHz)
+10 dBm (100-1000MHz)
L=10 to 100 MHz
M=100 to 500 MHz
U=500 to 1000 MHz
A
B
C
D
E
F
G
1.25
1.25
.75
.63
.38 1.000
.125
31.75 31.75 19.05 16.00
9.65 25.40
3.18
H
L
M
N
P
Q
wt.
1.000
.125 1.688
2.18
.75
.07 grams
25.40
3.18 42.88 55.38 19.05
1.78
75
Connectors
Model
Price
Qty.
SMA
ZFAT-4816
$89.95
(1-9)
BRACKET (OPTION "B")
$2.50
(1+)
wideband, 10 to 1000 MHz
excellent step accuracy, 0.2 dB typ.
small, shielded metal case
base stations
cellular
test sets
ZFAT-4816
THRU LOSS
2.0
2.2
2.4
2.6
2.8
3.0
10
208
406
604
802
1000
FREQUENCY (MHz)
T
H
R
U
L
O
S
S
(
d
B
)
ZFAT-4816
VSWR IN/OUT
1.0
1.1
1.2
1.3
1.4
1.5
1.6
10
208
406
604
802
1000
FREQUENCY (MHz)
V
S
W
R
INPUT
OUTPUT
ZFAT-4816
STEP #1/#2/#3
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
10
208
406
604
802
1000
FREQUENCY (MHz)
A
T
T
E
N
U
A
T
I
O
N
S
T
E
P
S
(
d
B
)
STEP#1
STEP#2
STEP#3
ZFAT-4816
Step Attenuation* at TTL Control State
INPUT VSWR
OUTPUT VSWR
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
FREQ.
000
001
010
011
100
101
110
111
THRU LOSS
4
8
12
16
20
24
28
(MHz)
(dB)
(dB)
(dB)
(dB)
(dB)
(dB)
(dB)
(dB)
10.00
2.58
4.08
7.97
12.05
16.09
20.15
23.88
28.02
49.60
2.19
4.07
8.01
12.07
16.20
20.22
24.12
28.16
148.60
2.20
4.05
8.05
12.12
16.14
20.12
24.07
28.26
208.00
2.23
4.08
8.02
12.13
16.19
20.34
24.10
28.37
247.60
2.28
4.06
8.05
12.08
16.14
20.20
24.19
28.31
346.60
2.36
4.05
7.99
12.06
16.17
20.14
23.99
28.29
406.00
2.41
4.02
8.00
12.08
16.14
20.21
23.98
27.93
445.60
2.45
4.07
8.00
11.99
16.09
20.16
24.21
28.32
544.60
2.48
4.02
7.99
11.97
16.16
20.26
24.46
28.32
604.00
2.55
4.03
8.03
12.01
16.13
20.17
24.10
28.34
703.00
2.55
4.01
8.02
12.00
16.17
20.15
24.22
27.91
762.40
2.58
4.02
8.08
12.12
16.20
20.30
24.12
28.39
821.80
2.56
4.06
8.14
12.09
16.24
20.26
24.15
27.99
881.20
2.61
4.07
8.15
12.11
16.28
20.25
24.17
28.06
940.60
2.64
4.09
8.13
12.16
16.24
20.36
24.33
28.22
1000.00
2.65
4.06
8.12
12.13
16.16
20.34
24.16
28.02
FREQ.
001
010
011
100
101
110
111
(MHz)
10.00
1.24
1.27
1.17
1.38
1.21
1.25
1.17
49.60
1.07
1.08
1.05
1.12
1.06
1.08
1.05
148.60
1.08
1.09
1.05
1.13
1.06
1.08
1.05
208.00
1.09
1.10
1.06
1.15
1.08
1.10
1.06
247.60
1.10
1.11
1.07
1.16
1.08
1.11
1.07
346.60
1.13
1.15
1.09
1.21
1.11
1.14
1.09
406.00
1.14
1.17
1.11
1.24
1.13
1.16
1.10
445.60
1.15
1.18
1.11
1.26
1.14
1.17
1.11
544.60
1.16
1.21
1.13
1.30
1.16
1.20
1.14
604.00
1.16
1.22
1.15
1.32
1.16
1.22
1.15
703.00
1.16
1.24
1.16
1.34
1.18
1.24
1.17
762.40
1.16
1.25
1.17
1.36
1.19
1.26
1.18
821.80
1.15
1.25
1.18
1.36
1.19
1.26
1.19
881.20
1.14
1.26
1.19
1.37
1.19
1.28
1.20
940.60
1.13
1.26
1.20
1.37
1.19
1.28
1.21
1000.00
1.12
1.26
1.21
1.37
1.19
1.30
1.23
FREQ.
001
010
011
100
101
110
111
(MHz)
10.00
1.42
1.29
1.29
1.11
1.11
1.10
1.11
49.60
1.14
1.09
1.10
1.05
1.05
1.05
1.06
148.60
1.11
1.07
1.06
1.05
1.04
1.04
1.04
208.00
1.12
1.06
1.05
1.02
1.02
1.02
1.01
247.60
1.15
1.08
1.07
1.05
1.04
1.04
1.04
346.60
1.22
1.20
1.12
1.09
1.07
1.07
1.08
406.00
1.29
1.19
1.18
1.12
1.13
1.11
1.12
445.60
1.29
1.19
1.18
1.13
1.13
1.13
1.12
544.60
1.35
1.26
1.26
1.19
1.20
1.19
1.20
604.00
1.31
1.24
1.23
1.19
1.19
1.18
1.20
703.00
1.31
1.25
1.26
1.21
1.23
1.23
1.21
762.40
1.28
1.25
1.26
1.23
1.23
1.23
1.24
821.80
1.26
1.22
1.23
1.20
1.19
1.20
1.19
881.20
1.26
1.22
1.23
1.20
1.21
1.21
1.21
940.60
1.29
1.23
1.25
1.19
1.19
1.21
1.22
1000.00
1.28
1.28
1.30
1.26
1.25
1.27
1.26
*
Step attenuation above thru-loss (TTL logic 000)
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