Model XDL20-6-100 Rev. B Delay Line Description The XDL20-6-100 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 XDL20-6-100 can be used in amplifier linearization applications from 400 - 3500MHz. The XDL20-6-100 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: * * * * * * * 869-894 AMPS Band Frequency (MHz.) Production Friendly Consistent Delay Stable over Temperature Surface Mountable Available in Tape&Reel Non-Lead Solder Paste Compatible 100% Tested Mean Delay (nS) 925-960 GSM Band 1805-1880 DCS Band 1930-1990 PCS Band 2110-2170 UMTS Band 5.95 0.12 9.64 0.20 9.78 0.20 9.54 0.20 1.00 1.00 2.00 2.00 2.00 0.10 0.10 0.25 0.15 0.15 20 0.40 20 0.45 20 0.60 20 0.60 20 0.60 13 13 13 13 13 4.3 4.3 4.3 4.3 4.3 5.8 Deviation from Linear Phase (Degrees Max) Amplitude Flatness (dB p-p) Return Loss (dB min) Insertion Loss (dB/nS) Power Handling (Watts) JC (C/watts) 0.12 Specification based on performance of unit properly installed on microstrip printed circuit boards with 50 nominal impedance. Specifications subject to change without notice. Mechanical Drawing Top View (Near-side) Bottom View (Far-side) Side View 1.000.010 [25.400.25] Hot Via .098.010 [2.490.25] Hot Via GND GND 1.000.010 [25.400.25] .848.004 [21.540.10] 3X .070.004 SQ [1.780.10] Orientation Marker Denotes Pin Location Denotes Array Number Dimensions are in Inches [Millimeters] XDL20-6-100 Rev A Mechanical Outline 3X .037.004 [0.940.10] Pin 2 .848.004 [21.540.10] 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 XDL20-6-100 Rev. B Typical Performance: 0.5 GHz to 3.0 GHz Return Loss XDL20-6-100 Insertion Loss XDL20-6-100 0 0 -0.5 -1 -20 Ins ertion Los s [dB] Return Los s [dB] -10 -30 -40 -1.5 -2 -2.5 -3 -3.5 -4 -50 -4.5 -60 -5 500 1000 1500 2000 2500 3000 500 1000 1500 Frequency [MHz] 2000 2500 3000 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. Because the XDL20-6-100 is tuned at 2.0GHz, the average delay in that range is larger than at 1.0 GHz and specifications reflect this variation. 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 .848 [21.54] 4X .037 [0.94] .848 [21.54] 4X 50 Transmission Line 4X .076 SQ [1.93] Dimensions are in Inches [Millimeters] XDL20-6-100 Rev A 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. 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 ensure 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 50 lines need to be adjusted to the unique dielectric coefficients and thicknesses as well as varying pick and place equipment tolerances.