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LMS7002M Documentation

The LMS7002M is Lime’s second-generation field programmable RF (FPRF) transceiver IC, with extended functionality to cover a greater range of frequencies and applications.

The device uses state of the art transceiver design in CMOS technology to significantly reduce cost and power consumption. It integrates a dual transceiver architecture to support 2×2 MIMO along with on-chip digital signal processing functions. The LMS7002M can run on any mobile communications and wireless standard – including all 2G, 3G and 4G variants and WiFi – both licensed and unlicensed.

Summary of features:

  • Field Programmable Radio Frequency (FPRF) chip
  • Dual transceiver ideal for MIMO
  • User programmable on the fly
  • Continuous coverage of the 100kHz-3.8GHz RF frequency range
  • Digital interface to baseband with on chip integrated 12 bit D/A and A/D converters
  • Programmable RF modulation bandwidth up to 120MHz using analog interface
  • Programmable RF modulation bandwidth up to 56MHz using digital interface
  • Supports both TDD and full duplex FDD
  • LimeLight™ digital IQ interface – JEDEC JESD207 TDD and FDD compliant
  • Transceiver Signal Processor block employs advanced techniques for enhanced performance
  • Single chip supports 2×2 MIMO. Multiple chips can be used to implement higher order MIMO
  • On-chip RF calibration circuitry
  • Fully differential baseband signals, analog IQ
  • Few external components
  • Low voltage operation, 1.25, 1.4 and 1.8V. Integrated LDOs to run on a single 1.8V supply voltage
  • On chip integrated microcontroller for simplified calibration, tuning and control
  • Integrated clock PLL for flexible clock generation and distribution
  • User definable analog and digital filters for customised filtering
  • RF and base band Received Signal Strength Indicator (RSSI)
  • 261pin aQFN 11.5×11.5 mm package
  • Power down option
  • Serial port interface
  • Low power consumption, typical 880mW in full 2×2 MIMO mode (550mW in SISO mode) using external LDOs
  • Multiple bypass modes for greater flexibility

Feedback and improvements

We welcome contributions to the documentation in the form of reports of errors and omissions, and general suggestions for improvement, via the issue tracker that is associated with this repository.



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Documentation for the Lime Microsystems second generation transceiver IC



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