HMC589AST89E v02.0617 InGaP HBT GAIN BLOCKMMIC AMPLIFIER, DC - 4 GHzPin Descriptions Pin Number Function Description Interface Schematic T M This pin is DC coupled. 1 IN An off chip DC blocking capacitor is required. K - S C 3 OUT RF output and DC Bias (Vcc) for the output stage. LO These pins and package bottom 2, 4 GND must be connected to RF/DC ground. IN B A Application Circuit S & G R IE LIF P M A Note: 1. External blocking capacitors are required on RFIN and RFOUT. 2. Rbias provides DC bias stability over temperature. Recommended Bias Resistor Values for Icc = 88 mA, Rbias = (Vs - Vcc) / Icc Supply Voltage (Vs) 5V 6V 8V Rbias Value 1.8 Ω 13 Ω 38 Ω Rbias Power rating 1/8 W ¼ W ½ W Recommended Component Values for Key Application Frequencies Frequency (MHz) Component 50 900 1900 2200 2400 3500 4000 L1 270 nH 56 nH 24 nH 24 nH 15 nH 8.2 nH 8.2 nH C1, C2 0.01 µF 100 pF 100 pF 100 pF 100 pF 100 pF 100 pF 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 5 Application Support: Phone: 1-800-ANALOG-D