QLF08_LaBel.pdf - 第6页
IC and Component Selection for Space Sy stems – Presented by Kenneth A . LaBel 6 IC Selection Requirements • T o begin the discussion, we shall review IC selection from three distinct and often contrary perspectives – Pe…
IC and Component Selection for Space Systems – Presented by Kenneth A. LaBel
5
The Challenge for Selecting ICs for Space
• Considerations since
the “old days”
– High reliability (and
radiation tolerant)
devices
• Now a very small market
percentage
– Commercial
“upscreening”
• Increasing in importance
• Measures reliability,
does not enhance
– System level
performance and risk
• Hardened “systems” not
devices
ASICs?
FPGAs?
Processor?
DSPs
Flash?
SDRAM?
System Designer
Trying to meet high-resolution
instrument requirements AND
long-life
SerDes?
ADCs?
IC and Component Selection for Space Systems – Presented by Kenneth A. LaBel
6
IC Selection Requirements
• To begin the discussion, we shall review IC
selection from three distinct and often contrary
perspectives
– Performance,
– Programmatic, and,
– Reliability.
• Each of these will be considered in turn, however,
one must ponder all aspects as part of the
process
IC and Component Selection for Space Systems – Presented by Kenneth A. LaBel
7
Performance Requirements
• Rationale
– Trying to meet science, surveillance, or
other performance requirements
• Personnel involved
– Electrical designer, systems engineer,
other engineers
• Usual method of requirements
– Flowdown from science or similar
requirements to implementation
• I.e., ADC resolution or speed, data
storage size, etc…
• Buzzwords
– MIPS/watt, Gbytes/cm
3
, resolution,
MHz/GHz, reprogrammable
• Limiting technical factors beyond
electrical
– Size, weight, and power (SWaP)
Performance
Inside a Apple
iPhone™ player