HMC6981LS6 v03.1018 GaAs pHEMT MMIC 2 WATTPOWER AMPLIFIER, 15 - 20 GHzEvaluation PCB T m s r - e w o p r & A e lin s - r ie lif p m A List of Materials for Evaluation PCB EVAL01-HMC6981LS6 [1] item Description The circuit board used in the application should use J1 - J4 "K" Connector, sri rf circuit design techniques. signal lines should J5, J6 DC pin have 50 ohm impedance while the package ground C1 - C5, C21, C22 100 pf Capacitor, 0402 pkg. leads and exposed paddle should be connected C7 - C11, C24, C26 10000 pf Capacitor, 0603 pkg. directly to the ground plane similar to that shown. C13 - C17, C28, C31 4.7 uf Capacitor, Case A pkg. A sufficient number of via holes should be used to r1, r2 42.6K ohm resistor, 0402 pkg. connect the top and bottom ground planes. The U1 HmC6981ls6 Amplifier evaluation circuit board shown is available from pCB [2] 600-00649-00 eval Board Analog Devices, upon request. [1] reference this number when ordering complete evaluation pCB [2] Circuit Board material: rogers 4350 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 10 Document Outline Typical Applications Features Functional Diagram General Description Electrical Specifications Performance Characteristics Gain & Return Loss Gain vs. Temperature Input Return Loss vs. Temperature Output Return Loss vs. Temperature Noise Figure vs. Frequency P1dB vs. Temperature Psat vs. Temperature P1dB vs. Vdd Psat vs. Vdd Power Compression @ 4 GHz Power Compression @ 10 GHz Power Compression @ 20 GHz Power Dissipation Second Harmonics vs. Temperature @ Pout = 18 dBm Second Harmonics vs. Vdd @ Pout = 18 dBm Second Harmonics vs. Pout Reverse Isolation vs Temperature Absolute Maximum Ratings Typical Supply Current vs. Vdd Outline Drawing Die Packaging Information Pad Descriptions Assembly Diagram Application Circuit