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SE2431L Datasheet(PDF) 6 Page - Skyworks Solutions Inc. |
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SE2431L Datasheet(HTML) 6 Page - Skyworks Solutions Inc. |
6 / 13 page DATA SHEET • SE2431L: 2.4 GHz FRONT-END MODULE Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 6 June 29, 2015 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 202410J Table 7. SE2431L Electrical Specifications: AC Characteristics, Diversity Antenna Function (Note 1) (VCC1 = VCC2 = 3 V, TA = +25 C, as Measured on the Evaluation Board [De-Embedded to the Device], All Unused Ports Terminated with 50 Ω, Unless Otherwise Noted) Parameter Symbol Min Typical Max Units Isolation between ANT1 and ANT2 ports ISOLANTSW –20 dB Antenna 1 to antenna 2 switching time tANT1-ANT2 400 ns Note 1: Performance is guaranteed only under the conditions listed in the above table. Unused antenna port should be connected to 50 Ω. Table 8. SE2431L Logic Controls (Note 1) (VCC = 3 V, TA = +25 C, Unless Otherwise Noted) Mode Description CPS CSD CTX ANT_SEL 0 All off (sleep mode) (Note 2) 0 0 0 X 1 Rx or Tx bypass mode 0 1 0 X 2 Rx LNA mode 1 1 0 X 3 Tx mode X 1 1 X ANT1 port enabled X 1 X 0 ANT2 port enabled X 1 X 1 Note 1: The logic 0 and 1 levels are compliant to VIL and VIH, respectively, as specified in Table 5. Note 2: All controls must be at logic 0 to achieve the specified sleep current. Evaluation Board Description The SE2431L Evaluation Board is used to test the performance of the SE2431L front-end module (FEM). An Evaluation Board schematic diagram is provided in Figure 3. A reference design schematic is shown in Figure 4. A photograph of the Evaluation Board is shown in Figure 5. A Bill of Materials (BOM) for the Evaluation Board is provided in Table 9. Evaluation Board Setup Procedure Connect Supply 1. Connect J32, J34, and J35 to 50 Ω instruments. Terminate all unused ports (if applicable) with 50 Ω. 2. Connect the supply ground to Pin 20 of the J36 header. 3. Connect 3.0 V to Pins 1, 3, and 16 of J36. 4. Refer to Table 8 for information about selecting the required RF path and for antenna port control. Measure TX Performance Apply an RF signal to connector J34 (TR) to monitor the 2.4 GHz amplifier performance. Monitor the output power on connector J35 (ANT1) or J32 (ANT2). Measure RX Performance Apply an RF signal to connector J35 (ANT1) or J32 (ANT2) to monitor the 2.4 GHz LNA performance. Monitor the output signal on connector J34 (TR). CAUTION: Care should be taken not to overdrive the amplifier by applying too much RF on the input to the device. A suitable starting input power for the device is –20 dBm. |
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