SKY12245-492LF SKYWORKS | Alldatasheet
Document overview
- Manufacturer or author: powersgm
- PDF pages: 24
Technical content
Features
- Compact, integrated high-power switch with driver circuit
- Small PCB footprint with minimal external components
- Requires only a single +5 V DC supply, and a 0 to 3 V logic control
- Low TX/RX insertion loss
- High TX to RX isolation
- Low DC power consumption: <130 mA in TX or RX mode
- Small QFN (20-pin, 5 × 5 mm) Pb-free package (MSL3, 260 °C per JEDEC J-STD-020)
Figure 1. SKY12245-492LF Block Diagram
Description
The SKY12245-492LF is a compact, integrated high-power single-pole, double-throw (SPDT) PIN diode switch with driver circuit for TDD-LTE and similar applications. The part operates with a single +5 V supply and switches with a single control voltage (0 to 3 V). It can be tuned to specific RF bands within the range of 0.3 to 5.0 GHz by modifying select external SMT components. This device features low TX and RX insertion loss, high isolation with low DC power consumption and requires minimal external components, enabling a smaller PCB footprint. The device is provided in a 5 × 5 mm, 20-pin Quad Flat No-Lead (QFN) package. A functional block diagram is shown in Figure 1. The pin configuration and package are shown in Figure 2. Signal pin assignments and functional pin descriptions are provided in Table 1.
Figure 2. SKY12245-492LF Pinout Table 1. SKY12245-492LF Signal Pin Descriptions 1, 4, 5, 7, 9, 11 GND Ground Ground. Must be co nnected to ground using lowest possible impedance. 2, 3 ANT I/O Antenna RF port and DC bias input po rt. RF input line must be connected to both pins. 6 RX O Receive RF output port and DC bias input port. 8 RX_BIAS I DC bias input port. 10 RXD O Driver output volt age for switch RX port. 12 COMP O Compensation pin of the internal boost converter. 13 FB O Feedback pin of the internal boost converter. 14 VREC I Rectified output voltage node of the internal boost converter. 15 VUREC O Unrectified output voltage node of the internal boost converter. 16 VCC I Input voltage for driver V CC. 17 VCTRL I Switch control (0/3 V) (0 V for Receive mode, 3 V for Transmit mode). 18 TXD O Driver output pin for TX port DC bias connection. 19 TX_BIAS I DC bias input port. 20 TX I Transmit RF input port and DC bias input port.
specified in Table 4, and DC characteristics are shown in Table 5. Electrical specifications are provided in Table 6. against temperature in Figure 23. Table 3. SKY12245-492LF Absolute Maximum Ratings1
2690 MHz) for 30 seconds (TC = 105 °C, LTE-TDD, DC = 88%, 100 W
at or below their nominal value. Exceeding any of the limits listed here may result in permanent damage to the device. 2 Power derating curve for complete circuit, which include s PIN diodes and CMOS driver is shown in Figure 23. ESD HANDLING: Although this device is designed to be as robust as possible, electrostatic discharge (ESD) can damage this device. potentials of several kilovolts on the human body or equipment, which can discharge without detection. Industry-standard ESD handling precautions should be used at all times. Table 4. SKY12245-492LF Recommended Operating Conditions
Table 5. SKY12245-492LF DC Electrical Characteristics Table 6. SKY12245-492LF Electrical Specifications1 (1 of 4)
0.5 GHz
2.4 GHz
3.6 GHz
4.1 GHz
4.6 GHz 2
Table 6. SKY12245-492LF Electrical Specifications1 (2 of 4)
4.6 GHz
Table 6. SKY12245-492LF Electrical Specifications1 (3 of 4)
Table 6. SKY12245-492LF Electrical Specifications1 (4 of 4) 1 Performance is guaranteed only under the conditions listed in this table. 2 Not tested in production. Guaranteed by design. Table 7. SKY12245-492LF Truth Table (Voltages and Currents Are Controlled by Internal Driver Circuit. VCC = 5 V)
Figure 24. SKY12245-492LF Evaluation Board Schematic
Table 8. SKY12245-492LF Evaluation Board Bill of Materials (BoM 1) 0.3 to 1 GHz because of their high reverse leakage current. Please contact the Skyworks applic ation team for additional support. 2 If selecting an RX side shunt PIN diode different from that listed in the BoM, we recommend strong caution. RX mode insertion loss and TX mode ANT-RX isolation may be degraded. Please contact the Skyworks applic ation team for additional support.
Table 9. SKY12245-492LF Evaluation Board Bill of Materials (BoM 2) 2.0 to 2.8 GHz because of their high reverse leakage current. Please contact the Skyworks applic ation team for additional support. 2 If selecting an RX side shunt PIN diode different from that listed in the BoM, we recommend strong caution. RX mode insertion loss and TX mode ANT-RX isolation may be degraded. Please contact the Skyworks applic ation team for additional support.
Table 10. SKY12245-492LF Evaluation Board Bill of Materials (BoM 3) 3.4 to 3.8 GHz because of their high reverse leakage current. Please contact the Skyworks applic ation team for additional support. 2 If selecting an RX side shunt PIN diode different from that listed in the BoM, we recommend strong caution. RX mode insertion loss and TX mode ANT-RX isolation may be degraded. Please contact the Skyworks applic ation team for additional support.
Table 11. SKY12245-492LF Evaluation Board Bill of Materials (BoM 4) 3.3 to 4.2 GHz because of their high reverse leakage current. Please contact the Skyworks applic ation team for additional support. 2 If selecting an RX side shunt PIN diode different from that listed in the BoM, we recommend strong caution. RX mode insertion loss and TX mode ANT-RX isolation may be degraded. Please contact the Skyworks applic ation team for additional support.
Table 12. SKY12245-492LF Evaluation Board Bill of Materials (BoM 5) 4.4 to 4.6 GHz because of their high reverse leakage current. Please contact the Skyworks applic ation team for additional support. 2 If selecting an RX side shunt PIN diode different from that listed in the BoM, we recommend strong caution. RX mode insertion loss and TX mode ANT-RX isolation may be degraded. Please contact the Skyworks applic ation team for additional support.
Figure 29. SKY12245-492LF Package Dimensions
Figure 30. SKY12245-492LF Tape and Reel Dimensions
DATA SHEET • SKY12245-492LF: 100 W Compact High-Power SPDT Switch with Integrated Driver Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 204135P • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • June 25, 2020 24
Ordering Information
Part Number Product Description Evaluation Board Part Number SKY12245-492LF SKY12245-492LF 0.3 to 1.0 GHz BoM 1 SKY12245-492EK1 SKY12245-492LF SKY12245-492LF 2.0 to 2.8 GHz BoM 2 SKY12245-492EK2 SKY12245-492LF SKY12245-492LF 3.4 to 3.8 GHz BoM 3 SKY12245-492EK3 SKY12245-492LF SKY12245-492LF 3.3 to 4.2 GHz BoM 4 SKY12245-492EK4 SKY12245-492LF SKY12245-492LF 4.4 to 4.6 GHz BoM 5 SKY12245-492EK5 Copyright © 2016-2020 Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein, are provided by Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials or the information contained herein. Skyworks may change its documentation, products, services, specifications or product descriptions at any time, without notice. Skyworks makes no commitment to update the materials or information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from any future changes. No license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by this document. Skyworks assumes no liability for any materials, products or information provided hereunder, including the sale, distribution, reproduction or use of Skyworks products, information or materials, except as may be provided in Skyworks Terms and Conditions of Sale. THE MATERIALS, PRODUCTS AND INFORMATION ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING FITNESS FOR A PARTICULAR PURPOSE OR USE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHT; ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY DISCLAIMED. SKYWORKS DOES NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE MATERIALS. SKYWORKS SHALL NOT BE LIABLE FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO ANY SPECIAL, INDIRECT, INCIDENTAL, STATUTORY, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM THE USE OF THE MATERIALS OR INFORMATION, WHETHER OR NOT THE RECIPIENT OF MATERIALS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Skyworks products are not intended for use in medical, lifesaving or life-sustaining applications, or other equipment in which the failure of the Skyworks products could lead to personal injury, death, physical or environmental damage. Skyworks customers using or selling Skyworks products for use in such applications do so at their own risk and agree to fully indemnify Skyworks for any damages resulting from such improper use or sale. Customers are responsible for their products and applications using Skyworks products, which may deviate from published specifications as a result of design defects, errors, or operation of products outside of published parameters or design specifications. Customers should include design and operating safeguards to minimize these and other risks. Skyworks assumes no liability for applications assistance, customer product design, or damage to any equipment resulting from the use of Skyworks products outside of stated published specifications or parameters. Skyworks and the Skyworks symbol are trademarks or registered trademarks of Skyworks Solutions, Inc. or its subsidiaries in the United States and other countries. Third-party brands and names are for identification purposes only and are the property of their respective owners. Additional information, including relevant terms and conditions, posted at www.skyworksinc.com, are incorporated by reference.