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
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.
ELECTRICAL SPECIFICATIONS
Frequency (MHz) 2110-2170
UMTS Band
Mean Delay (nS) 11.7
±
0.25
Deviation from Linear Phase (Degrees Max)
±
1.0
Amplitude Flatness (dB p-p) 0.20
Return Loss (dB min) 20
Insertion Loss (dB/nS) 0.60
Power Handling (Watts) 1
ΘJC (°C/watts) 2.0
Features:
• UMTS Band
• Production Friendly
• Consistent Delay
• Stable over Temperature
• Surface Mountable
• Available in Tape & Reel
• Lead-Free Finish
• 100% Tested
Operating Temp. (°C)
-55 to +85
Specification based on performance of unit properly installed on microstrip printed circuit boards with
50Ω nominal impedance. Specifications subject to change without notice.
OUTLINE DRAWING
XDL21-6-117 Mechanical Outline
Dimensions are in Inches [Millimeters]
.090
±.009
[2.28
±0.23
]
Side View
Top View (Near-side)
Tolerances are Non-Cumulative
GND
1.000
±.010
[25.40
±0.25
]
1.000
±.010
[25.40
±0.25
]
Denotes
Array Number
.848
±.004
[21.54
±0.10
]
.871
±.004
[22.13
±0.10
]
2X .037
±.004
[0.94
±0.10
]
2X.070
±.004
SQ
[1.78
±0.10
]
R.055 .047
±.004
[1.19
±0.10
]
.047
±.004
[1.19
±0.10
]Hot Via
GND
Orientation
Marker Denotes
Pin Location
Hot
Via
.062
±.004
[1.57
±0.10
]
Pin 2 Pin 1
USA/Canada:
Toll Free:
Europe:
(315) 432-8909
(800) 544-2414
+44 2392-232392
Available on Tape and
Reel For Pick and Place
Manufacturing.
Model
XDL21
-
6
-
117
Rev C
Typical Performance: 875MHz to 2175MHz
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:
XDL21-6-117 Mounting Footprint
Dimensions are in Inches [Millimeters]
To ensure proper electrical and thermal performance
there must be a ground plane with 100%
solder connection underneath the part
Multiple
plated thru holes
to ground
.889
[22.58]
2X .037
[0.94]
.869
[22.06]
2X SQ .076
[1.93] .848
[21.54]
2X .037
[0.94]
2X 50
Transmission
Line
2X Ø.116
[2.95]
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.
Return Loss
-60
-50
-40
-30
-20
-10
0
875 975 1075 1175 1275 1375 1475 1575 1675 1775 1875 1975 2075 2175
Frequency [MHz]
Return Loss [dB]
Insertion Loss
-7
-6
-5
-4
-3
-2
-1
0
875 975 1075 1175 1275 1375 1475 1575 1675 1775 1875 1975 2075 2175
Frequency [MHz]
Insertion Loss [dB]
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
PACKAGING
Parts are available in both reel and tube. Packaging follows EIA 481-2. Parts are oriented in tape and reel as shown
below. Minimum order quantities are 350 per reel and 23 per tube.
Orientation
Marker
B
ØA ØC
REEL DIMENSIONS (inches [mm])
ØA
B
ØC
1.732 [44.0]
4.017 [102.03]
13.0 [330.0]
350
QUANTITY/REEL
TABLE 1
ØD
0.512 [13.0]
ØD
