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Mini-Circuits®
P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661 For detailed performance specs & shopping online see Mini-Circuits web site
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RF/IF MICROWAVE COMPONENTS
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50Ω 360° Voltage Variable 400 to 950 MHz
Electronic Line Stretcher
Fixed Amplitude Mismatch, Wideband
Outline Dimensions ( )
inch
mm
Maximum Ratings
Coaxial Connections
RF IN 1
MONITOR OUT* 2
CONTROL 3
Outline Drawing
Electrical Specifications
REV. B
M108832
ED-8429/1
ELS-950
MM/EZ/CP/AM
070614
A
B
C
D
E
F
G
H
1
.25
.25
.
75
.
63
.
38
1
.00
125
1
.000
31.75 31.75 19.05 16.00 9.65 25.40 3.18 25.40
J
K
L
M
N
P
Q
w
t
-
-
-
-
.
125
1
.688
.18
.
75
.
07
g
rams
-- -- 3.18 42.88 55.37 19.05 1.78
0.0
ELS-950
Operating Temperature 0°C to 50 °C
Storage Temperature -40°C to 100°C
RF Input Power 13dBm
Control Voltage 0.5V to 30V
Features
• over 360° phase shift of the reflected signal
• normalized and stable magnitude of the
reflected signal
• voltage controlled for automated applications
• protected under US Patent 6,479,977
Applications
• automated load-pull measurement of oscillators1
* Monitor out port should be connected to a 50-ohm load
FREQUENCY
RANGE
(MHz)
INPUT
POWER
(dBm)
PHASE RANGE
(Degrees)
RETURN LOSS
(dB)
CONTROL
VOLTAGE
(V)
fL-fUMax. Min. Typ.
400-950 10 360 10-12 0.5-25
CASE STYLE: K18
Connectors Model Price Qty.
SMA ELS-950-S $149.95 (1-9)
BRACKET (OPTION "B") $2.50 (1+)
1. See Application Note AN-45-002 on our web site.
Application Block Diagram
FREQ.
(MHz)
PHASE SHIFT
(Deg.)
RETURN LOSS
(dBr)
0°C 50°C
Vc=0.5V
@ 0°C
Vc=10V
@ 0°C
Vc=25V
@ 0°C
Vc=0.5V
@+ 50°C
Vc=10V
@+50°C
Vc=25V
@ +50°C
Typical Performance Data
Maximum Phase Shift vs. Frequency
at temperature extremes
@ Pin=+7dBm
270
315
360
405
450
300 400 500 600 700 800 900 1000 1100
Frequency, MHz
Phase Shift, degrees
0C +50C
Return Loss vs. Frequency
at temperature extremes
@ Pin=+7dBm
-13
-12
-11
-10
-9
300 400 500 600 700 800 900 1000 1100
Frequency, MHz
Return Loss, dBr
Vc=0.5V @ 0C Vc=10V @ 0C Vc=25V @ 0C
Vc=0.5V @ +50C Vc=10V @ +50C Vc=25V @ +50C
300 290.51 299.06 -10.83 -9.85 -9.63 -11.40 -9.90 -9.73
360 365.70 374.24 -10.79 -10.10 -9.72 -11.21 -10.20 -9.76
420 402.47 408.38 -10.86 -10.39 -9.90 -11.17 -10.38 -10.04
480 412.55 416.59 -10.98 -10.31 -10.29 -11.20 -10.40 -10.32
520 409.93 413.82 -10.93 -10.12 -10.46 -11.17 -10.33 -10.48
580 403.67 408.94 -10.78 -9.87 -10.43 -10.99 -10.04 -10.46
640 402.14 408.69 -10.48 -9.72 -10.14 -10.74 -10.04 -10.16
700 403.23 410.19 -10.14 -9.96 -9.81 -10.38 -10.30 -9.89
760 403.87 410.63 -9.87 -10.80 -9.60 -10.13 -11.70 -9.71
800 402.32 409.49 -9.75 -11.66 -9.45 -9.97 -11.88 -9.58
880 397.09 402.32 -9.72 -11.35 -9.44 -9.92 -11.42 -9.59
920 394.06 394.63 -9.74 -10.78 -9.52 -9.91 -10.96 -9.70
980 374.13 377.19 -9.82 -10.11 -9.90 -9.96 -10.33 -10.16
1040 343.98 345.70 -9.91 -9.69 -10.69 -10.05 -9.91 -10.98
1100 293.33 294.33 -10.04 -9.40 -11.73 -10.19 -9.63 -11.96
Power from DUT
Reflected Power:
-12 dBr, >360˚
phase variation
Electronic
Line
Stretcher
Control Voltage
Sample Output for
Frequency/IM monitor
50 ohm
Input
VCO/PLL Analyzer/
Frequency Counter/
Spectrum Analyzer