EP1S20F780I6N Altera, EP1S20F780I6N Datasheet - Page 335
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
- Current page: 335 of 864
- Download datasheet (11Mb)
Altera Corporation
July 2005
f
f
An advanced level of control is also possible for precise control of the
loop filter parameters. This level allows you to specifically select the
charge pump current, loop filter resistor value, and loop filter (high
frequency) capacitor value. These parameters are: charge_pump_current,
loop_filter_r, and loop_filter_c. Each parameter supports the specific
range of values listed in
For more information on PLL software support in the Quartus II
software, see the altpll Megafunction User Guide.
Clock Switchover
For more information on implementing clock switchover, see
AN 313: Implementing Clock Switchover in Stratix & Stratix GX Devices.
Spread-Spectrum Clocking
Digital clocks are generally square waves with short rise times and a 50%
duty cycle. These high-speed digital clocks concentrate a significant
amount of energy in a narrow bandwidth at the target frequency and at
the higher frequency harmonics. This results in high energy peaks and
increased electromagnetic interference (EMI). The radiated noise from
the energy peaks travels in free air and, if not minimized, can lead to
corrupted data and intermittent system errors, which can jeopardize
system reliability.
Background
Traditional methods for limiting EMI include shielding, filtering, and
multi-layer printed circuit boards (PCBs). However, these methods
significantly increase the overall system cost and sometimes are not
enough to meet EMI compliance. Spread-spectrum technology provides
a simple and effective technique for reducing EMI emissions without
additional cost and the trouble of re-designing a board.
Resistor values (k )
High-frequency capacitance
values (pF)
Charge pump current settings
( A)
Table 1–8. Advanced Loop Filter Parameters
Parameter
General-Purpose PLLs in Stratix & Stratix GX Devices
Table
1–8.
1, 2, 3, 4, 7, 8, 9, 10
5, 10, 15, 20
10, 15, 20, 24, 30, 35, 40, 45, 50, 55, 60, 65,
70, 75, 80, 85, 90, 100, 112, 135, 148, 164,
212
Stratix Device Handbook, Volume 2
Values
1–25
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