Model XDL21-8-130 Rev. C Delay Line Description The XDL21-8-130 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 XDL21-8-130 can be used in amplifier linearization applications from 2110 - 2170MHz. The XDL21-8130 is ideal for the delay element required in the main loop of feed forward amplifiers. The Xinger(R) 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 Features: Production Friendly Consistent Delay Stable over Temperature Surface Mountable Available in Tape&Reel Non-Lead Solder Paste Compatible * 100% Tested * * * * * * Mechanical Drawing Frequency (MHz.) 2110-2170 UMTS Band Mean Delay (nS) 13 0.20 Deviation from Linear Phase (Degrees Max) 0.5 Amplitude Flatness (dB p-p) 0.10 Return Loss (dB min) Insertion Loss (dB/nS) 17 0.46 Power Handling (Watts) 1 JC (C/watts) 2.2 Operating Temp. ( C) -55 to +85 Specification based on performance of unit properly installed on microstrip printed circuit boards with 50 nominal impedance. Specifications subject to change without notice. Top View (Near-side) .130.013 [3.290.33] Hot Via Bottom View (Far-side) Side View 2.000.010 [50.800.25] Pin 2 3X .037.004 [0.940.10] 1.000.010 [25.400.25] GND Denotes Orientation Array Number Marker Denotes Pin Location Hot Via 1.848.004 [46.940.10] .848.004 [21.540.10] Pin 1 Dimensions are in Inches [Millimeters] XDL21-8-130 Preliminary Mechanical Outline 3X .070.004 SQ [1.780.10] GND 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 XDL21-8-130 Rev. C Typical Performance: (@ 25oC on test board). Return Loss 0 -2 -2.5 Insertion Loss (dB) -10 Return Loss (dB) Insertion Loss -20 -30 -40 -50 -3 -3.5 -4 -4.5 -5 -60 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 Frequency (MHz) -5.5 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 Frequency (MHz) AVERAGE DELAY The average delay is defined as the group delay of the input signal through the delay line. Because the Xinger delay lines take advantage of a narrow band tuning technique, the average delay over the broad band varies. 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 electral and thermal performance there must be a ground plane with 100% solder connection underneath the part Multiple plated thru holes to ground 2X 50 Transmission Line .848 [21.54] In order for Xinger surface mount delay lines to work optimally, there must be 50 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. 4X .037 [0.94] 4X .076 SQ [1.93] 1.848 [46.94] Dimensions are in Inches [Millimeters] XDL21-8-130 Preliminary 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. 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 50 lines need to be adjusted to the unique dielectric coefficients and thicknesses as well as varying pick and place equipment tolerances. Model XDL21-8-130 Rev. C PACKAGING Parts are oriented in tape as shown below. 1.260 [32.00] .157 [4.00] .012 [0.30] .079 [2.00] .069 [1.75] O.059 [O1.50] 1.346 [34.20] 2.835 [72.00] 2.012 [51.10] .165 [4.20] 2.693 [68.40] 1.020 [25.90] .031 [0.80] R.118 [R3.00] Xinger(R) Tape & Reel Diagram Available on Tape and Reel For Pick and Place Manufacturing. USA/Canada: Toll Free: Europe: (315) 432-8909 (800) 544-2414 +44 2392-232392