EP4SGX290KF40C3N Altera, EP4SGX290KF40C3N Datasheet - Page 306

• Manufacturer Part Number: EP4SGX290KF40C3N
• Description: IC STRATIX IV GX 290K 1517FBGA
• Manufacturer: Altera
• Series: Stratix® IV GXr

Specifications of EP4SGX290KF40C3N

• Number Of Logic Elements/cells: 291200
• Number Of Labs/clbs: 11648
• Total Ram Bits: 17248
• Number Of I /o: 744
• Voltage - Supply: 0.87 V ~ 0.93 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 1517-FBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Gates: -
• Other names: 544-2624

8–28
Example 8–1. Generating Three Output Clocks Using an ALTPLL Megafunction
LVDS data rate = 1 Gbps; serialization factor = 10; input reference clock = 100 MHz
The following settings are used when generating the three output clocks using an ALTPLL megafunction.
The serial clock must be 1000 MHz and the parallel clock must be 100 MHz (serial clock divided by the
serialization factor):
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Stratix IV Device Handbook Volume 1
c0
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c1
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c2
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Frequency = 1000 MHz (multiplication factor = 10 and division factor = 1)
Phase shift = –180° with respect to the voltage-controlled oscillator (VCO) clock
Duty cycle = 50%
Frequency = (1000/10) = 100 MHz (multiplication factor = 1 and division factor = 1)
Phase shift = (10 - 2) × 360/10 = 288° [(deserialization factor - 2)/deserialization factor] × 360°
Duty cycle = (100/10) = 10% (100 divided by the serialization factor)
Frequency = (1000/10) = 100 MHz (multiplication factor = 1 and division factor = 1)
Phase shift = (–180/10) = –18° (c0 phase shift divided by the serialization factor)
Duty cycle = 50%
Example 8–1
megafunction.
shows how to generate three output clocks using an ALTPLL
Chapter 8: High-Speed Differential I/O Interfaces and DPA in Stratix IV Devices
LVDS Interface with the Use External PLL Option Enabled
February 2011 Altera Corporation