HMC637A v01.0715 GaAs MMIC 1 WATTPOWER AMPLIFIER DC - 6 GHzPad Descriptions Pad Number Function Description Interface Schematic IP This pad is DC coupled and matched 1 IN to 50 Ohms. Blocking capacitor is required. H Gate control 2 for amplifier. Attach bypass R - C 2 Vgg2 capacitors per application circuit herein. For nominal E operation +6V should be applied to Vgg2. W O Low frequency termination. Attach bypass 3 ACG1 capacitor per application circuit herein. R & P A E Low frequency termination. Attach bypass 4 ACG2 IN capacitor per application circuit herein. RF output for amplifier. Connect DC bias (Vdd) network to 5 OUT & Vdd provide drain current (Idd). See application circuit herein. S - L R Low frequency termination. Attach bypass 6, 7 ACG3, ACG4 IE capacitor per application circuit herein. LIF Gate control 1 for amplifier. Attach bypass P capacitors per application circuit herein. Please 8 Vgg1 follow “MMIC Amplifier Biasing Procedure” M application note. A Die Bottom GND Die bottom must be connected to RF/DC ground. Informat F io o n r p furn risihcee d , d by e An lialvoe g rDy a evic n e d t s is o p belie lva e c d t e o o b rd e a e cc rursa: A te a n n a d lo reli g D able. e H v o ic weveers, I no For price, delivery, and to place orders: Analog Devices, Inc., responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other nc., 2 Elizabeth Drive, Chelmsford, MA 01824 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 Phone: 978-250-3343 • Fax: 978-250-3373 • O rights of third parties that may result from its use. Specifications subject to change without notice. No rd Ph e o r O ne n : 7 -l 81 i-n 3 e a 29-4t w 70 ww 0 • O .h rd iettit r o e nli.c n om license is granted by implication or otherwise under any patent or patent rights of Analog Devices. e at www.analog.com 6 Application Support: Pho Trademarks and registered trademarks are the property of their respective owners.ne: 978-250-33A4 p3 p o lic ra a tiopp n S su@ p h po irtttit : Pe. hocnom e: 1-800-ANALOG-D