PDF《Model X3DC21P1S》

Available on Tape and Reel for Pick and Place Manufacturing.

USA/Canada: Toll Free: Europe: (315) 432-8909 (800) 411-6596 +44 2392-232392 Model X3DC21P1S Rev D PRELIMINARY b Doherty Combiner Description The X3DC21P1S is a low profile, high performance Doherty Combiner in a new easy to use, manufacturing friendly surface mount package. The X3DC21P1S 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

50 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: ?

2100 -

2200 MHz ? Low Amp Imbalance ? Low Loss ? Production Friendly ? Tape and Reel ? Lead Free Frequency Return Loss [1] Insertion Loss [1] Amplitude Imbalance [1] Phase Imbalance [1] Operating Temp. MHz dB Min dB Max dB Max Degrees ?C

2100 -

2200 22 0.20 ±0.20 90± 3.0 -55 to +95 Return Loss [2] Insertion Loss [2] Port Extension [3] Power [4] ?JC dB Min dB Max Degrees PA Max. Watts ?C/Watt

20 0.3

7 2 x

70 10.2 **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 7° at 2150MHz. Details in page 2. [4] 70W output from each PA for short duration @ max power condition. Details in page 5. Mechanical Outline USA/Canada: Toll Free: Europe: (315) 432-8909 (800) 411-6596 +44 2392-232392 Available on Tape and Reel for Pick and Place Manufacturing. Model X3DC21P1S Rev D Doherty Amplifier Configuration Doherty Combiner Pin Configuration The X3DC21P1S 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

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. 90° ° Pin

2 Pin

4 50 ? Pin

1 Pin

3 50Ω 35? 50Ω 90° 90° Main Amp Peak Amp

50 ? 35? 90° RF input NC RF output 0° 90° Offset line Port Extension Anaren Doherty Combiner 50Ω Available on Tape and Reel for Pick and Place Manufacturing. USA/Canada: Toll Free: Europe: (315) 432-8909 (800) 411-6596 +44 2392-232392 Model X3DC21P1S Rev D PRELIMINARY Typical Performance (25°C): 2100-2200 MHz USA/Canada: Toll Free: Europe: (315) 432-8909 (800) 411-6596 +44 2392-232392 Available on Tape and Reel for Pick and Place Manufacturing. Model X3DC21P1S Rev D Definition of the Specifications To guarantee the part performance in Doherty architecture, the part is specified in Doherty operation for maximum power condition and low power condition. The following specification definition assumes the extra port extension is already applied to the raw S parameter and the parts is measured with Pin n connected to Port n (where n=1, 2, 3, 4). ? Maximum power condition Under the maximum power condition, the symmetrical Doherty architecture requires main amplifier and peak amplifier to work at full capacity with the optimum termination (50 ?). The two amplifiers should deliver RF power of equal magnitude and