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SKY65013 Datasheet(PDF) 4 Page - Skyworks Solutions Inc. |
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SKY65013 Datasheet(HTML) 4 Page - Skyworks Solutions Inc. |
4 / 5 page Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com September 25, 2006 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200360 Rev. C DATA SHEET • SKY65013-70LF 4 Evaluation Board Input Output R1 L1 C1 C4 C2 VD VS IS L3 L2 The SKY65013 evaluation board comprises the SKY65013 amplifier, the input and output of which are connected via 50 Ω microstrip transmission lines with DC blocking capacitors, C1 and C2, to the input and output SMA connectors, respectively. The positive supply voltage, VS, is connected to pin 3, RF Output of the amplifier via the decoupling network which consists of C4, L1,L2 and R1. The power supply current, IS, must be limited, either via the current limit function of an external bench power supply, or by replacing L3 with resistor R1, the value of which is given in the Current Limiting Resistor Values table. The evaluation board is shipped with L3 in place, which shifts an in-band series resonance of the supply decoupling network out of band. For low frequency applications, R1 may be used to conveniently limit supply current on the evaluation board. The evaluation board also contains a probe fixture which facilitates the direct measurement of the s parameters of the SKY65013. The probe fixture comprises a very short coplanar waveguide (CPW) transmission line to pin 1 and an identical line to pin 3. All other pins of the amplifier are grounded. The CPW transmission lines are compatible with ground-signal-ground wafer probe tips, which can be connected to the RF ports of a vector network analyzer (VNA) via coaxial cables. The very small electrical length of these CPW transmission lines obviates the need to de-embed their effects from the s parameters that are measured. The supply constant current must be applied via the bias tee, which is typically integrated into the VNA, which is cas- cade with the output pin of the amplifier. Component Description Value Size Suggested Part Number Comments C1,C2,C4 Capacitor 47 nF 0603 L1 Inductor 33 nH 0603 L2 Ferrite bead FBMH4525HM162N-T R1 Resistor See Current Limiting 0603 Resistor Values Table U1 Amplifier SKY65013 Evaluation Board Parts List R1 Minimum Power VS, V Resistance, Ω Ω Dissipation Rating, mW 4 13 125 4.6 28 125 5 38 125 6 63 125 8 113 250 9 138 500 10 163 500 12 213 500 Current Limiting Resistor Values |
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