PRODUCT SUMMARY SKY68000-31: LTE Dual-Band Front-End Module for IoT Applications Cellular IoT modem devices targeting low-power wide area network (LPWAN): Rx SAW 4G LTE technology capability MB RX Dedicated LTE half-duplex operation (HD-FDD) for LB RX LTE-M/NB-IoT Designed to meet 3GPP Rel-13 specifications (with ANT compatible cellular transceiver) MB TX PA LTE dual-band modem products (low-band and mid-band): Band 13 LB TX PA Band 4 Tx LPF MIPI PAE optimized for Class 3 LTE output power (+23 dBm) 204643-001 Figure 1. SKY68000-31 Functional Block Diagram Features Cost-optimized front end for low-data-rate applications Description Low-loss post-PA transmit front end for enhanced transmitter The SKY68000-31 is a hybrid, dual-band multi-chip RF front-end efficiency (compared to LTE-FDD radio front ends) (RFFE) module supporting cellular LTE-M/NB-IoT Dual-band PA supporting APT mode of operation or Vcc fixed (half-duplex system) transceiver platforms. The module supply ( 2.85 V) integrates the entire RF front end necessary for an LTE dual-band Integrated low-pass filters for harmonic rejection to comply radio operating in Band 13 and Band 4 including Rx SAW filters, with spurious emission requirements dual-band PA with bias controller, Tx low-pass harmonic filter, antenna switch, and MIPI RFFE controller. Integrated SP4T antenna Tx/Rx switch Integrated Rx SAW filters for out of band rejection for both Tx Section Band 13 and Band 4 The PA load-line is optimized for high efficiency while Optimized to support LTE for 1 to 6 RB simultaneously meeting 3GPP ACLR and emissions mask MIPI RFFE control interface, 2.0 compliant specifications with LTE up to 6 RB. An integrated LPF is Footprint-compatible with the SKY68001-31 and SKY68011-31 implemented to reject the PA and transceiver harmonics while at the same time minimizing any post PA loss for an optimized Adaptive biasing scheme for maximum PA efficiencies transmit current consumption. Out-of-band emissions Small, low-profile package (4 mm x 5 mm x 0.9 mm) performance is emphasized by the design to be 3GPP-compliant (MSL3 260 C per JEDEC J-STD-020) for Band 13 and Band 4. Lead (Pb)-free and RoHS-compliant Rx Section Receive SAW filters are integrated in to the module along with the TM necessary matching, yielding a 50 single-ended impedance for Skyworks Green products are compliant with the antenna and Rx ports. The SAW filters provide a high level of all applicable legislation and are halogen-free. rejection to out-of-band interferers protecting the transceiver For additional information, refer to Skyworks TM from high blocking signal levels and to support 3GPP LTE Denition of Green , document number blocking test conformance. The Rx SAW filters cascaded with the SQ040074. low throw count switch establishes a lower insertion loss and noise figure than conventional LTE receivers. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 204643C Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice 2018-07-27July 27, 2018 1 PRODUCT SUMMARY SKY68000-31: LTE DUAL-BAND FRONT-END MODULE FOR IoT Smart Biasing MIPI RFFE Controller Interface For most IoT applications, the DC-DC converter might not be The SKY68000-31 functional operation is fully controllable by a available to control the VCC supply of the PA. With a fixed DC single MIPI interface which is used to drive the PA in various supply, Smart Biasing allows for easy power control through the optimized bias modes as well as providing band selection and MIPI interface by programming reduced bias current for lower controlling the antenna switch Tx, Rx, and band selection. gain states. Based on the application, a set of 4 to 6 different bias conditions with specific fixed-gain steps are predefined. For each Figure 1 shows the block diagram for the SKY68000-31. of the steps, the transceiver output power can be adjusted to meet the desired total output power. The key advantages of the smart biasing scheme are: Saving current consumption during lower output power operation Easy programming of fixed-gain steps through the MIPI interface Reducing the required output dynamic range of the transceiver Ordering Information Part Number Product Description Evaluation Board Part Number SKY68000-31 LTE Dual-Band Front-End Module for IoT SKY68000-31EK1 Copyright 2017-2018 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. 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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. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 July 27, 2018 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice 204643C