Model X3DC19E2S Rev A Doherty Combiner b Description The X3DC19E2S is a low profile, high performance Doherty Combiner in a new easy to use, manufacturing friendly surface mount package. The X3DC19E2S is designed particularly for Doherty Amplifier applications, where tightly controlled phase and amplitude imbalance as well as low insertion loss are required for maximum and low power condition. It can be used in high power applications up to 200 watts. Parts have been subjected to rigorous qualification testing and they are manufactured using materials with coefficients of thermal expansion (CTE) compatible with common substrates such as FR4, G-10, RF-35, RO4350 and polyimide. Produced with 6 of 6 RoHS compliant tin immersion finish Electrical Specifications ** Features: Phase Return Insertion Amplitude Operating Frequency Imbalance 1930 - 1990 MHz 1 1 1 Loss Loss Imbalance Temp. 1 High Power Low Amp Imbalance MHz dB Min dB Max dB Max Degrees C Very Low Loss 1930 1990 20 0.15 0.12 90 3.0 -55 to +95 Production Friendly Return Insertion Port Tape and Reel 4 Power 2 2 3 JC Loss Loss Extension Lead Free Avg. CW dB Min dB Max Degrees C/Watt Watts 20 0.20 9 200 27 **Specification based on performance of unit properly installed on Anaren Test Board 1 At maximum power condition, Doherty combiner functions as an equal-split power combiner. 2 At low power condition, Doherty combiner functions as a 100 to 50 impedance transformer. 3 There are short 50 ohm lines associated with input ports of 9 at 1960MHz. Details in page 2. Mechanical Outline USA/Canada: (315) 432-8909 Available on Tape and Reel for Pick and Toll Free: (800) 411-6596 Place Manufacturing. +44 2392-232392 Europe: 90 50 90 50 Mode l X3DC19E2S Rev A Doherty Amplifier Configuration Offset line 0 RF output RF input Main Amp 90 NC 35 90 Peak Amp Anaren Doherty Combiner Port Extension 50 Doherty Combiner Pin Configuration The X3DC19E2S has an orientation marker to denote Pin 1. Once port one has been identified the other ports are known automatically. Please see the chart below for clarification: Pin 1 Pin 4 50 90 Pin 3 Pin 2 35 50 Pin 1 Pin 2 Pin 3 Pin 4 Combining Port Not Used Peak Amp Port Main Amp Port There are inevitably short lines associating with input ports in some high frequency band parts. The length of the short line is specified as electrical length at center frequency and noted as port extension in this datasheet. The designer should take this length into the consideration to optimize the offset line length. USA/Canada: (315) 432-8909 Available on Tape and Reel for Pick and Place Toll Free: (800) 411-6596 Manufacturing. Europe: +44 2392-232392