Micro-nano Satellite Integrated Electronics

     This command describes the appearance features, technical specifications, interface definitions and...

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Introduction

     This command describes the appearance features, technical specifications, interface definitions and communication protocols of Micro-nano Satellite Integrated Electronics.

Features

Integrated Electronics adopts card-box design, including CAN data bus and RS422 data bus.

1)CAN data bus interface. CAN communication rate 500Kbps, receiver input impedance: 5 to 10KΩ, differential input impedance: 20 to 100KΩ.

2)RS422 input interface.Asynchronous Serial Interface, pulse per second signal receiving logic signal. The interface chip adopts AM26C32.

3)RS422 output interface. Asynchronous Serial Interface, pulse per second signal output logic signal. The interface chip adopts AM26C31. 

Specifications

Item

Parameter

Remark

CPU

ARM

dual cold backup

Main frequency

180MHz


Data memory

4MB


Program memory

64MB


Data bus interface

CAN data bus, 500Kbps


Uplink telecommand

2000bps


Downlink telemetry

16Kbps


pulse per second signal interface

1 channel


RS422 interface

11 channel, 115200bps


TT&C system

USB


Data storage

1024Gbit; support modes of recording, replaying, replaying while recording, self-checking


Payload data interface

LVDS, 6 channel with each 1.6Gbit


Telemetry acquisition channel

28 channel of temperature parameter, 6 channel of analog parameter

number configurable

OC command

16 channel, driving capability 200mA, pulse width 160±10ms

number configurable

Temperature control channel

22 channel, with power of single channel no less than 12W

number configurable


Applications