MT2812

Programmable Baseband SoC 

Overview

Metanoia’s MT2812 is a System on a Chip (SoC) that supports a wide range of wireless applications by converting multiple  data formats to Ethernet medium. With a programmable modem that uses advanced DSP technology, integrated high speed data convertors and dual RISC processors, the MT2812 is ideal for converting packetized data to arbitrary wireless communication formats including 5G New Radio (5G NR).

The MT2812 SoC can be combined with RF transceivers and RF front end modules to build compact and highly flexible sub-6GHz 5G-NR Radio Units (RUs), small cells systems and customer premises equipment (CPE). With most of the necessary building blocks provided by Metanoia, it is the most cost-effective and competitive solution to meet the needs of various market segments and operators in 5G network deployment.

Applications

he MT2812 SoC supports a scalable architecture which can help in building higher density applications by using multiple instances of the chip.

Target Market Segments

  • Sub-6GHz low density O-RAN RU market
  • Small Cell CPE (1T1R up to 8T8R) – standalone design that can directly connect to a 5G core network
  • 1T1R to 2T2R – Low density RU
  • Complete end-to-end solution for RU including power amplifier (PA), transceiver, Digital Front-End (DFE), Low-PHY and fronthaul interface as specified by O-RAN

Use Cases

>> 5G RU <= 200 MHz Application System
2×2 MIMO for TDD with a single carrier with DPD
  • The occupied BW is typically 200 MHz comprising one or more 5G TDD component carriers
  • The data converters on the MT2812 operate at 491.52, 938.05, or 1966.08 MSPS and support two TX and two RX IQ streams
  • DPD in the RU system can be supported to achieve power and performance requirements
  • Multiple TX paths are periodically observed to track variations across temperature and environment changes
Use Cases
>> 5G RU < 100 MHz Application System
2×2 MIMO for TDD with two aggregated carriers without DPD
  • The data converters on the programmable baseband SoC support a single TX/RX IQ stream and operate at 153.6 MSPS
  • This sample rate supports an aggregate signaling bandwidth up to 50-75 MHz
  • DPD is not used in such wideband deployments
  • Two MT2812 baseband SoCs are connected to a single transceiver
  • RX signal levels for AGC are shared and the TX/RX interval timing is synchronized precisely between the two MT2812 parts
Use Cases

 

 

 

Specifications

 

Two CPU Complex
  • e200z7 Core running up-to 312 MHz
  • 32-bit PowerPC Book E compliant
  • 64 kB Local Data Memory
  • 16 kB Instruction Cache
  • 16 kB Data Cache
  • Memory Protection Unit (MPU) with 24-entry descriptor table
  • Embedded Floating-point APU (EFPU2) supporting scalar and SIMD single-precision floating-point operations
  • Signal Processing Extension (SPE2) APU supporting SIMD fixed-point operations, using the 64-bit General Purpose Register file
  • Performance Monitor APU supporting execution profiling
Tree VSPA3 16SP Complexes
  • 16 Complex 32-bit float mac per cycle
  • 64 Real 32-bit float mac per cycle
  • 32 Complex 24-bit float mac per cycle
  • 28 Real 24-bit float mac per cycle
  • Special Arithmetic Unit (SAU)
  • Forward Error Correction Unit
  • 128 kB VCPU and 192 kB IPPU Data Memory
  • DMA
2 MB On-Chip SRAM
High DMA with CRC
Security Offload
  • AES-256 crypto up to 2 Gbps
Interfaces
  • Integrated data converters 2T2R @ 100 MHz
  • Up to 424 MSPS ADC x4 (RXI1, RXQ1, RXI2, RXQ2). Each pair of ADCs can be interleaved to give 848 MSPS effective
  • Up to 848 MSPS DAC x4 (TXI1, TXQ1, TXI2, TXQ2)
  • Timer outputs
  • I2C Master and slave modes supported
  • SPI interface with 2 Chip Selects
  • FlexSPI supporting x4 serial NOR or NAND flash with 1 Chip Select
  • GPIO
  • 62550 Compatible 2-pin UART for debug console interface
  • Light-Weight LVDS communication protocol
Network I/O
  • 5 Gbps SGMII / SerDes and RGMII
  • Ethernet management Interface
  • IEEE 1588
Standard 5-pin JTAG
Time Base Generator
  • 64-bit master counter
  • Timing generation with timing advance and delay compensation
Other Features
  • Absolute +/- 10% maximum rating core and I/O voltage
  • Supply voltages: 1.8 V,1.2 V, 0.9 V, 0.8 V
  • Operating Temperature between -40 °C (Ta) ~ 105 °C (Tj)
  • ESD Criteria  –  HBM with 2000 V with test method for ESD per MIL-STD-883G Method 3015.7
  • ESD Criteria – CDM with 500 V with test method for ESD per JESD22-C101-D.
  • Latch up with 200 mA tolerance with test is based on JEDEC STANDARD EIA/JESD
16 nm FinFET technology, power consumption < 2.5 W, 8×8 mm FC-PBGA 164-pin package

 

Reference Design

The Metanoia 5G_RU_R2812_COM is a RU reference design associated with the MT2812 SoC. It is the ideal test platform for both cutting-edge application development and out-of-the-box evaluation. This system includes a board (5G_RU_R2812_LD) and associated Hardware Development Kit (HDK) and Software Development Kit (SDK). This system accelerates time to market for OEMs and ODMs by leveraging reference design, software, and Open Radio Access Network (O-RAN) interoperability.