Digital Signal Processing Reference
In-Depth Information
x(n)
h
N- 2
h
N- 1
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h
0
3:2
Compression
Tree
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0
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y(n)
Figure 6.9
Transposed direct-form FIR filter with CSD multiplication and carry save addition
x(n)
+
+
+
h
N-1
h
N-2
h
0
3:2
Compression
Tree
Layer for adding
pipeline registers
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0
0
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y(n)
(a)
x(n)
h
N-1
h
N-2
h
0
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+
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0
0
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y(n)
(b)
Figure 6.10
(a) TDF FIR filter with one stage of pipelining registers. (b) Deeply pipelined TDF FIR
filter with critical path equal to one full adder delay
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