HMC644ALC5 v00.0216 GaAs MMIC 5-BIT DIGITALPHASE SHIFTER, 15 - 18.5 GHzEvaluation PCB T M L - S ITA IG S - D IFTER H E S S A PH List of Materials for Evaluation PCB 116685 [1][3] The circuit board used in the final application ItemDescription should use RF circuit design techniques. Signal J1 - J2PCB Mount SMA RF Connector lines should have 50 ohm impedance while the J3Molex Header 2mm package ground leads and exposed paddle should HMC644ALC5 5-Bit Digital PhaseU1Shifter be connected directly to the ground plane similar to PCB [2]116683 Evaluation PCB that shown. A sufficient number of via holes should [1] Reference this number when ordering complete be used to connect the top and bottom ground evaluation PCB planes. The evaluation board should be mounted [2] Circuit Board Material: Rogers 4350 to an appropriate heat sink. The evaluation circuit [3] Please refer to part’s pin description and func- board shown is available from Hittite upon request. tional diagram for pin out assignments on evaluation board. For price, delivery, and to place orders: Analog Devices, Inc., One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 Phone: 781-329-4700 • Order online at www.analog.com Application Support: Phone: 1-800-ANALOG-D 8