HMC6981LS6 v03.1018 GaAs pHEMT MMIC 2 WATTPOWER AMPLIFIER, 15 - 20 GHzPin Descriptions pad number function Description interface schematic Vdd3, Vdd2, Vdd1, Drain bias voltage. external bypass capacitors of 100 pf, 1, 2, 3, 10, 16 T Vdd5, Vdd4 10 nf, and 4.7 uf are required for each pin. m s Gate control for pA. Adjust Vgg to achieve recommended r - 4, 9 Vgg1, Vgg2 bias current. external bypass capacitors 100 pf, 10 nf, and e 4.7 μf are required. Apply Vgg bias to either pin 4 or pin 9. w o p These pins and exposed ground paddle 5, 7, 13, 15 GnD must be connected to rf/DC ground. r & A 6 rfin This pin is DC coupled and matched to 50 ohms. e DC voltage of diode biased through external resistor used lin 11 Vref for temperature compensation of Vdet. see Application Circuit. s - DC voltage representing rf output power rectified by diode 12 Vdet which is biased through an external resistor. r see Application Circuit. ie 14 rfoUT This pin is DC coupled and matched to 50 ohms. lif p m A 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 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
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