ST ST7590 OFDM窄带动力线网络系统开发方案

ST公司的ST7590是首个窄带OFDM动力线通信系统极芯片(SoC),具有嵌入了OFDM调制的高性能DSP引擎,可编比特率高达128kps,器件集成了多种外设和128位AES加密硬件区块,模拟前端和动力线驱动器,主要用在PRIME兼容的智能电表和智能电网.本文介绍了ST7590主要特性,框图,两个应用案例,以及评估板EVALST7590T-2主要特性,框图,电路图和材料清单.
ST7590 is the first complete Narrowband OFDM power line communication system-on-chip made using a multi-power technology with state of the art VLSI CMOS lithography. The ST7590 is based on dual core architecture to assure outstanding communication performance with a very high level of flexibility and programmability for either open standard or fully customized implementations.
ST7590主要特性:
■ Fully integrated narrow-band power line networking system-on-chip
■ High performing DSP engine with embedded turn-key firmware for Orthogonal frequency division multiplexing (OFDM) modulation, featuring:
– 96 sub-carriers in CENELEC A band
– BDPSK, QDPSK, 8DPSK programmable modulations
– Programmable bit rate up to 128 kbps
– Convolutional coding and Viterbi decoding
– Signal to noise ratio and channel quality estimation
– Full PRIME compliant PHY
■ On chip peripherals:
– Host controller UART/SPI interface
– I2C/SPI external data memory interface
– High speed SRAM controller for optional external SRAM program code execution
– Watchdog timer
■ On chip 128 bit AES encryption HW block
■ Fully integrated analog front end:
– ADC and DAC
– High sensitivity receiver
– High linearity transmitter with intelligent gain control
■ Fully integrated power line driver
– Up to 1 Arms, 14 Vpp single ended
– Configurable active filtering topology
– Ultra low distortion
– Embedded temperature sensor
– Current control
■ 3.3 V or 5 V I/O digital I/O supply
■ Integrated 5 V and 1.8 V linear regulators for AFE and digital core supply
■ 8 V to 18 V line driver power supply
■ Su...