HMC742ALP5E v01.1213 0.5 dB LSB GaAs MMIC 6-BIT DIGITALVARIABLE GAIN AMPLIFIER, 70 MHz - 4 GHzPin Descriptions Pin Number Function Description Interface Schematic T M This pin is DC coupled. 1 AMPIN An off chip DC blocking capacitor is required. L - S RF output and DC bias (Vcc) for the output stage of the 29 AMPOUT amplifier. ITA IG 2, 3, 13, These pins and package bottom GND 28, 30 - 32 must be connected to RF/DC ground. S - D R These pins are DC coupled and matched to 50 Ohms. ATTOUT, 4, 12 Blocking capacitors are required. Select value based ATTIN IE on lowest frequency of operation. LIF External capacitors to ground is required. Select value for P 5 - 10 ACG1 - ACG6 lowest frequency of operation. Place capacitor as close to pins as possible. M 11 N/C No connection IN A A LE G 14 SEROUT Serial input data delayed by 6 clock cycles. B IA R A V 15, 16 PUP2, PUP1 D5, D4, D3, 18 - 23 D2, D1, D0 24 P/S 25 CLK 26 SERIN 27 LE 17 Vdd Supply Voltage I F nf o or r p mati r o in cfe ur , d nish e e l d iv b e y r A y a nalo n g d t Devi o p ces i la s c bele o ieve rd d t e o rbs e : H acc iutrtatite e M and ic reli rao bl w e. a H v o e C wever o , nrp o 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 oration, 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 Phoe n r O e: 7 n- 81-li 3 n 2 e a 9-4 t w 70 ww 0 • O . rdh e itt r o it nle i . n co e a m 9 license is granted by implication or otherwise under any patent or patent rights of Analog Devices. t www.analog.com Application Support: Phon Trademarks and registered trademarks are the property of their respective owners. e: 978-250-334 A 3 o pplic r a atio pp n S s u @ p h por ittti : Pte ho.c n o e m : 1-800-ANALOG-D