®
D
IGITAL
S
TEP
A
TTENUATORS
50Ω
TTL C
ONTROL
, P
IN
D
IODE
10 MHz to 1 GHz
Precision
TOAT
ZFAT
ZSAT
C
O
N
N
E
C
T
I
O
N
FREQUENCY
MHz
MODEL
NO.
TOAT-R512
TOAT-124
TOAT-3610
TOAT-4816
TOAT-51020
ZFAT-R512
ZFAT-124
ZFAT-3610
ZFAT-4816
ZFAT-51020
PRIMARY ATTENUATION STEPS
dB
@TTL CONTROL PORT
ATTENUATION
dB
LOGIC STATE*
(1,1,1)**
Nom.
3.5
7.0
19.0
28.0
35.0
3.5
7.0
19.0
28.0
35.0
(0,0,0)
Max.
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
VSWR (:1)
CASE
STYLE
PRICE
$
Qty.
(1-9)
59.95
59.95
59.95
59.95
59.95
89.95
89.95
89.95
89.95
89.95
f
L
10
10
10
10
10
10
10
10
10
10
f
U
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
#1
0.5±0.18
1±0.25
3±0.3
4±0.4
5±0.4
0.5±0.18
1±0.25
3±0.3
4±0.4
5±0.4
#2
1±0.25
2±0.25
6±0.4
8±0.4
10±0.4
1±0.25
2±0.25
6±0.4
8±0.4
10±0.4
SIX CONTROL PORTS
#3
2±0.25
4±0.3
10±0.4
16±0.5
20±0.5
2±0.25
4±0.3
10±0.4
16±0.5
20±0.5
L
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
M
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
U
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
Note B
QQ96
QQ96
QQ96
QQ96
QQ96
SSS173
SSS173
SSS173
SSS173
SSS173
cq
cq
cq
cq
cq
-
-
-
-
-
ZSAT-31R5
10
1000
(1) 0.5±0.18
(4) 4±0.3
(2) 1±0.25
(5) 8±0.4
(3) 2±0.25
(6)16±0.5
31.5
7.0
1.7
1.5
1.6
AR214
-
119.00
L = 10 to 100 MHz
M = 100 to 500 MHz
U = 500 to 1000 MHz
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) 10 µs typ., 15µs max.
TTL input High Threshold 2V min.
TTL input Low Threshold 0.8V max.
TTL Toggle Rate: 50 kHz typ.
1dB compression: 0 dBm (10-100MHz)
+10dBm (100-1000MHz)
For ZSAT-31R5:
1dB compression: +10 dBm (10-100 MHz)
+15 dBm (100-1000 MHz)
features
l
l
l
l
l
l
wide frequency band, 10-1000 MHz
excellent step accuracy, 0.2 dB typ.
excellent VSWR, 1.3 typ.
low DC current, 6 mA typ.
operates over -55
o
to 100
o
C
small case, 0.6" dia., TO-8
NOTES:
*
**
A.
B.
C.
1.
Total attenuation (1,1,1,1,1,1)
Thru-Loss (0,0,0,0,0,0)
Total attenuation above thru-loss.
General Quality Control Procedures, Environmental Specifications,
Hi-Rel and MIL description are given in section 0, see “Mini-Circuits
Guarantees Quality” article.
Connector types and case mounted options, case finishes are
given in section 0, see “Case Styles & Outline Drawings”.
Prices and Specifications subject to change without notice.
Absolute maximum power, voltage and current rating:
1a. Input power, 15 dBm
1b. DC voltage, 5.5 Volts
1c. TTL, 5.5 Volts
1d. Storage temperature -55
o
C to +125
o
C for TOAT models.
Step accuracy is specified for basic steps. For combination of
steps accuracy is additive.
Thru-loss is minimum insertion loss with all attenuation elements
bypassed (All TTL controls state are Low).
For optimum operation of TOAT models, ensure the device case is
properly connected to the ground plane (of PC board).
For ZSAT-31R5:
Logic function:
TTL High activates associated in-line attenuation
TTL Low bypasses this attenuation
NSN GUIDE
MCL NO.
TOAT-124
TOAT-51020
NSN
5985-01-416-9021
5985-01-416-9020
pin connections
see case style outline drawing
PORT
cq
RF IN
4
RF OUT
11
TTL CONTROL #1
2
TTL CONTROL #2
3
TTL CONTROL #3
1
+5V DC
12
CASE GND
5,6,7,8,9,10
2.
3.
4.
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