Model XDL21-6-117
Delay Line
DESCRIPTION
The XDL21-6-117 is a surface mount delay line that uses a slow wave
coupling structure that maximizes the amount of delay per unit area over
other distributed delay structures. The XDL21-6-117 can be used in
amplifier linearization applications from 2110 – 2170MHz. The XDL21-6-
117 is ideal for use in the main loop of feed forward and in pre-distortion
amplifiers. The Xinger® delay lines are a low cost, high quality alternative to
the traditional coaxial and filter solutions presently available. Parts have
been subjected to rigorous qualification testing and units are 100% tested.
Rev C
Features:
•
•
•
•
•
•
•
•
ELECTRICAL SPECIFICATIONS
Frequency
(MHz)
Mean Delay
(nS)
Deviation from Linear Phase
(Degrees Max)
Amplitude Flatness
(dB p-p)
Return Loss
(dB min)
Insertion Loss
(dB/nS)
Power Handling
(Watts)
ΘJC
(°
C/watts)
Operating Temp.
(°
C)
2110-2170
UMTS Band
11.7
±
0.25
UMTS Band
Production Friendly
Consistent Delay
Stable over Temperature
Surface Mountable
Available in Tape & Reel
Lead-Free Finish
100% Tested
±
1.0
0.20
20
0.60
1
2.0
-55 to +85
OUTLINE DRAWING
Specification based on performance of unit properly installed on microstrip printed circuit boards with
50Ω nominal impedance. Specifications subject to change without notice.
Top View (Near-side)
1.000
±.010
[25.40
±0.25
]
Side View
.090
±.009
[2.28
±0.23
]
Hot
Via
R.055
.047
±.004
[1.19
±0.10
]
.062
±.004
[1.57
±0.10
]
Hot Via
.047
±.004
[1.19
±0.10
]
GND
GND
1.000
±.010
[25.40
±0.25
]
.871
±.004
[22.13
±0.10
]
Denotes
Orientation
Marker Denotes Array Number
Pin Location
Dimensions are in Inches [Millimeters]
XDL21-6-117 Mechanical Outline
2X.070
±.004
SQ
[1.78
±0.10
]
Pin 2
.848
±.004
[21.54
±0.10
]
2X .037
±.004
[0.94
±0.10
]
Pin 1
Tolerances are Non-Cumulative
Available on Tape
and Reel For Pick and
Place Manufacturing.
USA/Canada:
Toll Free:
Europe
:
(315) 432-8909
(800) 544-2414
+44 2392-232392
Model XDL21-6-117
Rev C
Typical Performance: 875MHz to 2175MHz
Return Loss
0
Insertion Loss
0
-1
Insertion Loss [dB]
-10
Return Loss [dB]
-2
-3
-4
-5
-6
-7
875
-20
-30
-40
-50
-60
875
975
1075
1175
1275
1375
1475
1575
1675
1775
1875
1975
2075
2175
975
1075
1175
1275
1375
1475
1575
1675
1775
1875
1975
2075
2175
Frequency [MHz]
Frequency [MHz]
AVERAGE DELAY
The average delay is defined as the group delay of the input signal through the delay line. The lot-to-lot variation is
reflected in the plus/minus tolerance given in specifications.
Refer to Anaren Application Note AAN-232 for further information on Xinger delay lines.
MOUNTING GUIDELINES:
To ensure proper electrical and thermal performance
there must be a ground plane with 100%
solder connection underneath the part
In order for Xinger surface mount delay lines to work
optimally, there must be 50Ω transmission lines leading to
and from all of the RF ports. Also, there must be a very
good ground plane under the part with a number of plated
thru holes to insure proper electrical performance. If any
of these conditions are not satisfied, insertion loss,
average delay and VSWR may not meet published
specifications.
When a surface mount delay line is mounted to a printed
circuit board (PCB), the primary concerns are; insuring
the RF pads of the device are in contact with the circuit
trace of the PCB and the ground plane of neither the
component nor the PCB are in contact with the RF signal.
An example of how the PCB footprint could look is shown
below. In particular designs, the 50Ω lines need to be
adjusted to the unique dielectric coefficients and
thicknesses as well as varying pick and place equipment
tolerances.
2X .037
[0.94]
.889
[22.58]
Multiple
plated thru holes
to ground
2X Ø.116
[2.95]
2X 50
Transmission
Line
.869
[22.06]
2X SQ .076
[1.93]
.848
[21.54]
2X .037
[0.94]
Dimensions are in Inches [Millimeters]
XDL21-6-117 Mounting Footprint
USA/Canada:
Toll Free:
Europe:
(315) 432-8909
(800) 544-2414
+44 2392-232392
Available on Tape and
Reel For Pick and Place
Manufacturing.
FPGA/CPLD
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