HMC409LP4E v04.1217 GaAs InGaP HBT 1 WATTPOWER AMPLIFIER, 3.3 - 3.8 GHzPin Descriptions pin number function Description interface schematic T m 1-3, 5, 6, 8, 10 -14, no connection required. These pins may be connected to n/C 18, 19, 21, 22, 24 rf/DC ground without affecting performance. s This pin is AC coupled 4 rfin and matched to 50 ohms. r - e w power control pin. for maximum power, this pin should be connected to 5V thru a 56 Ω resistor. A high-voltage or o 7 Vpd small resistor is not recommended for lower idle current. p This voltage can be reduced or the resistor increased. r & A e 9 Vbias DC power supply pin for bias circuitry lin s - 15, 16, 17 rfoUT rf output and DC bias for the output stage. r ie power supply voltage for the second amplifier stage. lif 20 Vcc2 external bypass capacitors and pull up choke are required p as shown in the application schematic. m power supply voltage for the first amplifier stage. external A 23 Vcc1 bypass capacitors are required as shown in the application schematic. Ground: Backside of package has exposed metal ground GnD slug that must be connected to ground thru a short path. Vias under the device are required. 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 7 Application Support: Phone: 1-800-ANALOG-D Document Outline Typical Applications Features Functional Diagram General Description Electrical Specifications EVM vs. Temperature @ 3.5 GHz OFDM 54 Mbps Signal Power Dissipation Gain, Power & Quiescent Supply Current vs. Vpd @ 3.5 GHz Noise Figure vs. Temperature Gain & Power vs. Supply Voltage Power Compression @ 3.5 GHz Output IP3 vs. Temperature Psat vs. Temperature P1dB vs. Temperature Power Down Isolation vs. Temperature Reverse Isolation vs. Temperature Output Return Loss vs. Temperature Input Return Loss vs. Temperature Gain vs. Temperature Broadband Gain & Return Loss Absolute Maximum Ratings Typical Supply, Current vs. Supply Voltage, Vcc1 = Vcc2 = Vpd Outline Drawing Package Information Application Circuit Pin Descriptions Evaluation PCB List of Materials
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