Microsemi LX7730耐辐射遥测系统控制器解决方案
Microsemi公司的LX7730是耐辐射遥测系统控制器,作为FPGA的姐妹器件,包括了64个通用输入复接器,可以配置差分或单端传感器输入端,集成了13kSPS 12位ADC和10位DAC,可调电流源精度3%,1%精度的5.00V电压源,具有阈值监测,支持并行或两个SPI接口,耐辐射容差为100krad TID,50kad ELDRS,主要用在数字通信,有效载荷设备遥控,遥测系统跟踪和控制,透明射频应答器,航天器健康监测和姿态控制系统.本文介绍了LX7730主要特性,框图,传感器扩展器框图,典型应用电路图以及LX7730 MKT评估板主要特性和电路图.
The LX7730 is a spacecraft telemetry manager IC that functions as a companion to the FPGA. The LX7730 contains a 64 universal input multiplexer that can be configured as a mix of differential or single ended sensor inputs. There is a programmable current source that can be directed to any of the 64 universal inputs. The universal inputs can be sampled with a 12 bit analog-to-digital converter at a sample rate up to 13kHz. The universal inputs can also function as variable bi-level inputs with the threshold set by an internal 8 bit digital-to-analog converter. There is an additional 10 bit digital-to- analog current DAC with complementary outputs. Finally there are 8 fixed threshold bi-level inputs.
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