EP2AGX45DF29I5 Altera, EP2AGX45DF29I5 Datasheet - Page 132
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EP2AGX45DF29I5
Manufacturer Part Number
EP2AGX45DF29I5
Description
IC ARRIA II GX FPGA 45K 780FBGA
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)
Specifications of EP2AGX45DF29I5
Number Of Logic Elements/cells
42959
Number Of Labs/clbs
1805
Total Ram Bits
3435
Number Of I /o
364
Voltage - Supply
0.87 V ~ 0.93 V
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 100°C
Package / Case
780-FBGA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Number Of Gates
-
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5–28
Arria II Device Handbook Volume 1: Device Interfaces and Integration
Source-Synchronous Mode for LVDS Compensation
The goal of source-synchronous mode for LVDS compensation is to maintain the same
data and clock timing relationship seen at the pins at the internal
serializer/deserializer (SERDES) capture register, except that the clock is inverted
(180° phase shift), as shown in
the delay of the LVDS clock network plus any difference in the delay between these
two paths:
■
■
Figure 5–21. Source-Synchronous Mode for LVDS Compensation for Arria II Devices
No-Compensation Mode
In no-compensation mode, the PLL does not compensate for the clock networks. This
mode provides better jitter performance because the clock feedback into the PFD
passes through less circuitry. Both the PLL internal and external clock outputs are
phase-shifted with respect to the PLL clock input.
waveform of the PLL clocks’ phase relationship in no-compensation mode.
Data pin-to-SERDES capture register
Clock input pin-to-SERDES capture register. In addition, the output counter must
provide the 180° phase shift.
Clock at register
Data at register
reference clock
at input pin
Data pin
PLL
Figure
5–21. Thus, this mode ideally compensates for
Chapter 5: Clock Networks and PLLs in Arria II Devices
Figure 5–22
December 2010 Altera Corporation
shows an example
PLLs in Arria II Devices
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