SKY65053-377LF Datasheet, PDF (6/12 Pages) Skyworks Solutions Inc. – 0.45-6.0 GHz Low Noise Transistor

DATA SHEET • SKY65053-377LF LOW NOISE TRANSISTOR
Evaluation Board Description
The SKY65053-377LF Evaluation Board is used to test the
performance of the SKY65053-377LF low noise transistor. An
assembly drawing for the Evaluation Board is shown in Figure 11.
The Evaluation Board schematic diagram is shown in Figure 12.
Table 5 provides the Bill of Materials (BOM) list for Evaluation
Board components.
Circuit Design Considerations
Input and output traces have been minimized to reduce losses. All
surface mount components are 0402-sized to reduce component
parasitics. Use of 0603 or larger components is not
recommended. Component spacing has also been minimized. The
board is provisioned with two RF connectors and a DC launch. RF
connector and board loss up to component C1 is approximately
0.1 dB at 2.4 GHz.
It is very important to place multiple ground vias as close to shunt
components as possible. This ensures proper grounding and
circuit performance.
Board material is 10 mil VT47 FR4 with 1 oz. copper cladding.
The RF traces are 50 Ω.
Caution: Do not ground the exposed pad.
Evaluation Board Test Procedure
Step 1: Connect RF test equipment to amplifier input/output SMA
connectors.
Step 2: Connect DC ground.
Step 3: Connect VDD to a +5 V supply with a current limit of
100 mA. Verify that the board draws approximately
55 mA.
Step 4: Apply RF signal or noise source.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
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July 7, 2009 • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • 201089C