SKY68001-31中文资料LTE Universal Multi-Band Front-End Module for IoT数据手册Skyworks规格书

描述 Description

The SKY68001-31 is a hybrid, multi-band multi-chip RF front-end(RFFE) module supporting cellular LTE-M/NB-IoT(half-duplex system) transceiver platforms. The module integratesthe entire RF front end necessary for an LTE multi-band radiooperating in low-band B5/B8/B12/B13/B17/B18/B19/B20/B26and mid-band B1/B2/B3/B4/B25/B39/B66 frequencies,including Rx low-pass filters, broadband PA with bias controller,Tx low-pass harmonic filter, antenna switch, and MIPI RFFEcontroller.

Tx Section

The PA load-line is optimized for high efficiency whilesimultaneously meeting 3GPP ACLR and emissions maskspecifications with LTE up to 6 RB. An integrated LPF isimplemented to reject the PA and transceiver harmonics while atthe same time minimizing any post PA loss for an optimizedtransmit current consumption. Out-of-band emissionsperformance is emphasized by the design to be compliant forB5/B8/B12/B13/B17/B18/B19/B20/B26 and mid-bandB1/B2/B3/B4/B25/B39/B66.

Rx Section

Receive low-pass filters are integrated into the module along withthe necessary matching to yield a 50 Ω single-ended impedancefor the antenna and Rx ports. The filters provide a high level ofrejection to out-of-band interferers, protecting the transceiverfrom high blocking signal levels and to support 3GPP LTE blockingtest conformance. The Rx low-pass filters are cascaded with thelow throw count switch to establish a lower insertion loss andnoise figure than conventional LTE receivers.

Auxiliary Path

The two AUX ports are additional broadband ports that can beused symmetrically for either Tx or Rx operation. The AUX portscan support conventional GSM power levels.

Smart Biasing

For most IoT applications, the DC-DC converter might not beavailable to control the VCC supply of the PA. With a fixed DCsupply, Smart Biasing allows for easy power control through theMIPI interface by programming reduced bias current for lowergain states. Based on the application, a set of 4 to 6 different biasconditions with specific fixed-gain steps are predefined. For eachof the steps, the transceiver output power can be adjusted tomeet the desired total output power.The key advantages of the smart biasing scheme are: Saving current consumption during lower output power operationEasy programming of fixed-gain steps through the MIPI interfaceReducing the required output dynamic range of the transceiver.
MIPI RFFE Controller Interface

The SKY68001-31 functional operation is fully controllable by asingle MIPI interface which is used to drive the PA in variousoptimized bias modes as well as providing band selection andcontrolling the antenna switch Tx, Rx, and band selection.

特性 Features

• Cost-optimized front end for low-data-rate applications
• Broadband PA supporting APT mode of operation or Vcc fixed supply (≥ 2.85 V)
• Integrated SP6T antenna Tx/Rx switch
• Optimized to support LTE for 1 to 6 RB
• Pin-to-pin compatible with the SKY68000-31 and SKY68011-31
• Adaptive biasing scheme for maximum PA efficiencies
• Lead (Pb)-free and RoHS-compliant

应用 Application

• Cellular IoT and M2M
• Connected Homes
• Factory Automation
• Industrial IoT

简介

SKY68001-31属于RF/IF射频/中频RFID的射频前端（LNA+PA）。由Skyworks制造生产的SKY68001-31射频前端（LNA + PA）本系列中的产品是各种集成电路，其中集成了射频 (RF) 信号链连接到系统天线的部分中常见的一种或多种功能，如低噪声放大器 (LNA) 和可编程放大器 (PA)。任何给定器件所含的实际功能各不相同，相比旨在提供更高应用灵活性的器件，针对相对较窄应用的器件通常集成更大一部分必要的信号链。