Electronic Components Datasheet Search |
|
TW16-D280-031 Datasheet(PDF) 7 Page - Skyworks Solutions Inc. |
|
TW16-D280-031 Datasheet(HTML) 7 Page - Skyworks Solutions Inc. |
7 / 14 page DATA SHEET • SKY65152-11 POWER AMPLIFIER Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 200968F • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • October 19, 2009 7 Evaluation Board Description The SKY65152-11 Evaluation Board is used to test the performance of the SKY65152-11 PA. An Evaluation Board schematic diagram is provided in Figure 15. An assembly drawing for the Evaluation Board is shown in Figure 16. An Evaluation Board layer detail drawing is shown in Figure 17. Layer detail physical characteristics are noted in Figure 18. Table 5 provides the Bill of Materials (BOM) list for Evaluation Board components. Circuit Design Considerations The following design considerations are general in nature and must be followed regardless of final use or configuration: 1. Paths to ground should be made as short as possible. 2. The ground pad of the SKY65152-11 has special electrical and thermal grounding requirements. This pad is the main thermal conduit for heat dissipation. Since the circuit board acts as the heat sink, it must shunt as much heat as possible from the device. Therefore, design the connection to the ground pad to dissipate the maximum wattage produced by the circuit board. Multiple vias to the grounding layer are required. 3. Bypass capacitors should be used on the DC supply lines. An RF inductor is required on the VCC supply line to block RF signals from the DC supply. Refer to the schematic drawing in Figure 15 for further details. 4. The RF lines should be well separated from each other with solid ground in between traces to maximize input-to-output isolation. NOTE: A poor connection between the slug and ground increases junction temperature (TJ), which reduces the lifetime of the device. Evaluation Board Test Procedure Step 1: Connect a +5 V supply to the VCC1, VCC2, VCC3, VREF1, VREF2, VREF3, VC_BIAS, VCC_DET, and PA_ENB pins. If available, enable the current limiting function of the power supply to 1000 mA. Step 2: If desired, connect a voltage meter to the V_DET pin. Step 3: Connect a signal generator to the RF signal input port. Set it to the desired RF frequency at a power level of –15 dBm or less to the Evaluation Board. DO NOT enable the RF signal. Step 4: Connect a spectrum analyzer to the RF signal output port. Step 5: Enable the power supply. Step 6: Enable the RF signal. Step 7: Take measurements. CAUTION: If the input signal exceeds the rated power, the SKY65152-11 Evaluation Board can be permanently damaged. NOTE: It is important to adjust the VCC voltage source so that +5 V is measured at the board. The high collector currents will drop the collector voltage significantly if long leads are used. Adjust the bias voltage to compensate. RF Input 1 2 3 4 5 6 78 9 10 16 17 18 19 20 15 14 13 12 11 PA Enable (0-5 V) Bias Voltage (5 V) Reference Voltage (5 V) RF Output C5 8.2 pF R5 300 Ω C15 10 μF C8 8.2 pF C16 10 μF C7 8.2 pF C6 3300 pF C10 8.2 pF C17 10 μF GND GND PA_ENB VC_BIAS VREF1 VREF2 VCC1 VCC_DET V_DET VCC2 N/C VCC3 L2 27 nH Collector Voltage 1 (5 V) Collector Voltage 2 (5 V) Collector Voltage 3 (5 V) Detector Supply Voltage (5 V) Detector Output S1502 C1 3300 pF C2 3300 pF C11 10 μF R1 560 Ω R2 180 Ω R3 180 Ω × SKY65152-11 Figure 15. SKY65152-11 Evaluation Board Schematic |
Similar Part No. - TW16-D280-031 |
|
Similar Description - TW16-D280-031 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |