EP1S20F780I6N Altera, EP1S20F780I6N Datasheet - Page 614
EP1S20F780I6N
Manufacturer Part Number
EP1S20F780I6N
Description
IC STRATIX FPGA 20K LE 780-FBGA
Manufacturer
Altera
Series
Stratix®r
Specifications of EP1S20F780I6N
Number Of Logic Elements/cells
18460
Number Of Labs/clbs
1846
Total Ram Bits
1669248
Number Of I /o
586
Voltage - Supply
1.425 V ~ 1.575 V
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 100°C
Package / Case
780-FBGA
Family Name
Stratix
Number Of Logic Blocks/elements
18460
# I/os (max)
586
Frequency (max)
450.05MHz
Process Technology
0.13um (CMOS)
Operating Supply Voltage (typ)
1.5V
Logic Cells
18460
Ram Bits
1669248
Operating Supply Voltage (min)
1.425V
Operating Supply Voltage (max)
1.575V
Operating Temp Range
-40C to 100C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
780
Package Type
FC-FBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Number Of Gates
-
Lead Free Status / Rohs Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
EP1S20F780I6N
Manufacturer:
ALTERA
Quantity:
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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