EP1S10F780I6N Altera, EP1S10F780I6N Datasheet - Page 614
EP1S10F780I6N
Manufacturer Part Number
EP1S10F780I6N
Description
IC STRATIX FPGA 10K LE 780-FBGA
Manufacturer
Altera
Series
Stratix®r
Datasheet
1.EP1S10F484I6N.pdf
(864 pages)
Specifications of EP1S10F780I6N
Number Of Logic Elements/cells
10570
Number Of Labs/clbs
1057
Total Ram Bits
920448
Number Of I /o
426
Voltage - Supply
1.425 V ~ 1.575 V
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 85°C
Package / Case
780-FBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Number Of Gates
-
Available stocks
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Price
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Part Number:
EP1S10F780I6N
Manufacturer:
ALTERA
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3 000
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Infinite Impulse Response (IIR) Filters
7–36
Stratix Device Handbook, Volume 2
This cascaded structure rearranges the transfer function. This is shown in
the equation below, where each product term is a second order IIR filter.
If n is odd, the last product term is a first order IIR filter:
Figure 7–21
Figure 7–21. Cascaded IIR Filter
Basic IIR Filters
In this section, the basic IIR filter is implemented using cascaded second
order blocks or biquads in the direct form II structure.
Basic IIR FIlter Implementation
Multiplier blocks, adders and delay elements can implement a basic IIR
filter. The Stratix architecture lends itself to IIR filters because of its
embedded DSP blocks, which can easily be configured to perform these
operations. The altmult_add megafunction can be used to implement
the multiplier-adder mode in the DSP blocks.
implementation of an individual biquad using Stratix and Stratix GX DSP
blocks.
H z
x(n)
=
shows the cascaded structure.
C
C
n
H (z)
+
k
1
1
=
1
2
a
--------------------------------------------------- -
1
0k
+
+
b
a
1k
1k
z
z
1 –
H (z)
1 –
k
+
+
b
a
2k
2k
z
z
2 –
2 –
Figure 7–22
=
C
H (z)
n
n
Altera Corporation
+
k
1
=
September 2004
shows the
1
2
H
y(n)
k
z
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