Altera ALTPLL (Phase-Locked Loop) IP Core - Manual (Page 22)

Table 11: Programmable Bandwidth Support
Cyclone Series PLL Fast PLL Enhanced PLL Left_Right Top_Bottom Device Family
— Yes Yes — — Arria GX
— — — Yes
(4)
— Arria II GX
— — — Yes
(4)
Yes
(4)
Stratix IV
— — — Yes
(4)
Yes
(4)
Stratix III
— Yes Yes — — Stratix II
— Yes Yes — — Stratix II GX
— No Yes — — Stratix
— No Yes — — Stratix GX
Yes
(4)
— — — — Cyclone IV
Yes
(4)
— — — — Cyclone III
No — — — — Cyclone II
No — — — — Cyclone
Advanced PLL Parameters
The ALTPLL parameter editor provides an option for you to generate output files using the ALTPLL advanced
parameters. Examples of advanced parameters are
charge_pump_current , loop_filter_r , and
loop_filter_c
. This option is supported in all Altera devices.
This option is intended for advanced users who know the exact details of their PLL configuration and for
users who understand the parameters well enough to set them optimally. The files generated are not intended
to be re-used by the ALTPLL parameter editor, because after the ALTPLL IP core output files are specified
using the advanced parameters, the Quartus II compiler cannot change them. For example, the compiler
cannot perform optimization. Thus, your design cannot benefit from improved algorithms to pick better
settings or to make changes to some settings that the ALTPLL parameter editor finds to be incompatible
with your design.
Advanced Parameter Settings
Altera recommends you not to use these parameters unless you are an advanced user.
(4) This device family supports only Auto and preset values.
ALTPLL (Phase-Locked Loop) IP Core User Guide Altera Corporation
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Advanced PLL Parameters 22
2014.08.18