PRODUCT SUMMARY SKY68001-41: LTE Universal Multi-Band Front-End Module for IoT AUX2 Applications Rx LPF Cellular IoT modem devices targeting low-power wide area MB RX network (LPWAN): LB RX 4G LTE technology capability ANT Dedicated LTE half-duplex operation (HD-FDD) for MB TX PA LTE-M/NB-IoT Designed to meet 3GPP Rel-12 and Rel-13 specifications PA LB TX (with compatible cellular transceiver) Tx LPF MIPI LTE universal modem products (low-band and mid-band): Low-band B5, B8, B12, B13, B17, B18, B19, B20, B26, B28 204626-001 AUX1 Mid-band B1, B2, B3, B4, B25, B39, and B66 Figure 1. SKY68001-41 Functional Block Diagram PAE optimized for Class 3 LTE output power (+23 dBm) Description Features The SKY68001-41 is a hybrid, multi-band multi-chip RF front-end Cost-optimized front end for low-data-rate applications (RFFE) module supporting cellular LTE M/NB-IoT (half-duplex system) transceiver platforms. The module integrates Low-loss post-PA transmit front end for enhanced transmitter the entire RF front end necessary for an LTE multi-band radio efficiency (compared to LTE-FDD radio front ends) operating in low-band (B5, B8, B12, B13, B17, B18, B19, B20, Broadband PA supporting APT mode of operation or Vcc fixed B26, and B28) and mid-band (B1, B2, B3, B4, B25, B39, and B66) supply ( 2.85 V) frequencies, including Rx low-pass filters, broadband PA with bias Integrated low-pass filters for harmonic rejection to comply with controller, Tx low-pass harmonic filter, antenna switch, and MIPI spurious emission requirements RFFE controller. Integrated SP6T antenna Tx/Rx switch Tx Section Integrated Rx low-pass filters for out-of-band rejection 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 Pin-to-pin compatible with the SKY68000-31 and SKY68011-31 implemented to reject the PA and transceiver harmonics while at the same time minimizing any post PA loss for an optimized Two additional Aux ports offer greater flexibility for more bands transmit current consumption. Out-of-band emissions on the Tx or Rx path performance is emphasized by the design to be 3GPP-compliant Adaptive biasing scheme for maximum PA efficiencies for low-band (B5, B8, B12, B13, B17, B18, B19, B20, B26, and B28) and mid-band (B1, B2, B3, B4, B25, B39, and B66). Small, low-profile package (4 mm x 5 mm x 0.9 mm) (MSL3 260 C per JEDEC J-STD-020) Rx Section Lead (Pb)-free and RoHS-compliant Receive low-pass filters are integrated into the module along with the necessary matching to yield a 50 single-ended impedance for the antenna and Rx ports. The filters provide a high level of TM Skyworks Green products are compliant with rejection to out-of-band interferers, protecting the transceiver all applicable legislation and are halogen-free. from high blocking signal levels and to support 3GPP LTE blocking For additional information, refer to Skyworks test conformance. The Rx low-pass filters are cascaded with the TM Denition of Green , document number low throw count switch to establish a lower insertion loss and SQ04-0074. noise figure than conventional LTE receivers. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 204930B Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice July 27, 2018 1 PRODUCT SUMMARY SKY68001-41: LTE UNIVERSAL MULTI-BAND FRONT-END MODULE FOR IoT Auxiliary Paths The two AUX ports are additional broadband ports that can be The key advantages of the smart biasing scheme are: used symmetrically for either Tx or Rx operation. The AUX ports Saving current consumption during lower output power can support conventional GSM power levels. operation Easy programming of fixed-gain steps through the MIPI Smart Biasing interface For most IoT applications, the DC-DC converter might not be Reducing the required output dynamic range of the transceiver. available to control the VCC supply of the PA. With a fixed DC supply, Smart Biasing allows for easy power control through the MIPI RFFE Controller Interface MIPI interface by programming reduced bias current for lower gain states. Based on the application, a set of 4 to 6 different bias The SKY68001-41 functional operation is fully controllable by a conditions with specific fixed-gain steps are predefined. For each single MIPI interface that is used to drive the PA in various of the steps, the transceiver output power can be adjusted to optimized bias modes as well as providing band selection and meet the desired total output power. controlling the antenna switch Tx, Rx, and band selection. Figure 1 shows the block diagram for the SKY68001-41. Ordering Information Part Number Product Description Evaluation Board Part Number SKY68001-41 LTE Multi-Band Front-End Module for IoT SKY68001-41EK1 Copyright 2018 Skyworks Solutions, Inc. All Rights Reserved. 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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 204930B