EP2AGX190FF35C6N Altera, EP2AGX190FF35C6N Datasheet - Page 114
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EP2AGX190FF35C6N
Manufacturer Part Number
EP2AGX190FF35C6N
Description
IC ARRIA II GX 190K 1152FBGA
Manufacturer
Altera
Series
Arria II GXr
Datasheets
1.EP2AGX45CU17C6N.pdf
(96 pages)
2.EP2AGX45CU17C6N.pdf
(14 pages)
3.EP2AGX45CU17C6N.pdf
(692 pages)
4.EP2AGX45CU17C6N.pdf
(10 pages)
5.EP2AGX45CU17C6N.pdf
(88 pages)
6.EP2AGX190FF35C6N.pdf
(306 pages)
Specifications of EP2AGX190FF35C6N
Number Of Logic Elements/cells
181165
Number Of Labs/clbs
7612
Total Ram Bits
9939
Number Of I /o
612
Voltage - Supply
0.87 V ~ 0.93 V
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 85°C
Package / Case
1152-FBGA
Family Name
Arria® II GX
Number Of Logic Blocks/elements
190300
# I/os (max)
612
Frequency (max)
400MHz
Operating Supply Voltage (typ)
900mV
Logic Cells
190300
Ram Bits
10380902.4
Operating Supply Voltage (min)
0.87V
Operating Supply Voltage (max)
0.93V
Operating Temp Range
0C to 85C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
1152
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
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5–22
Post-Scale Counter Cascading
Programmable Duty Cycle
Arria II GX Device Handbook, Volume 1
1
Arria II GX PLLs support post-scale counter cascading to create counters larger than
512. This is automatically implemented in the Quartus II software by feeding the
output of one C counter into the input of the next C counter, as shown in
Figure 5–17. Counter Cascading
Note to
(1) n = 6
When cascading post-scale counters to implement a larger division of the
high-frequency VCO clock, the cascaded counters behave as one counter with the
product of the individual counter settings. For example, if C0 = 40 and C1 = 20, the
cascaded value is C0 C1 = 800.
Post-scale counter cascading is set in the configuration file. You cannot accomplish
post-scale counter cascading with PLL reconfiguration.
The programmable duty cycle allows the PLLs to generate clock outputs with a
variable duty cycle. This feature is supported on the PLL post-scale counters. The
duty-cycle setting is achieved by a low and high time-count setting for the post-scale
counters. The Quartus II software uses the frequency input and the required multiply
or divide rate to determine the duty cycle choices. The post-scale counter value
determines the precision of the duty cycle. The precision is defined by 50% divided by
the post-scale counter value. For example, if the C0 counter is 10, steps of 5% are
possible for duty-cycle choices between 5% to 90%.
Combining the programmable duty cycle with programmable phase shift allows the
generation of precise non-overlapping clocks.
Figure
5–17:
VCO Output
VCO Output
VCO Output
VCO Output
VCO Output
VCO Output
Chapter 5: Clock Networks and PLLs in Arria II GX Devices
C0
C1
C2
C3
C4
Cn
(1)
from preceding
post-scale counter
© July 2010 Altera Corporation
PLLs in Arria II GX Devices
Figure
5–17.
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