Overview of Fixed-Point Filters
The most common use of fixed-point filters is in the DSP chips,
where the data storage capabilities are limited, or embedded systems
and devices where low-power consumption is necessary. For example,
the data input may come from a 12 bit ADC, the data bus may be 16
bit, and the multiplier may have 24 bits. Within these space constraints, Filter Design Toolbox software
enables you to design the best possible fixed-point filter.
What Is a Fixed-Point Filter?
A fixed-point filter uses fixed-point arithmetic
and is represented by an equation with fixed-point coefficients. To
learn about fixed-point math, see Fixed-Point Concepts in Fixed-Point Toolbox documentation.
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 | Converting from Floating-Point to Fixed-Point | | Floating-Point to Fixed-Point Conversion |  |
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