EP2AGX65DF29C6N Altera, EP2AGX65DF29C6N Datasheet - Page 201

• Manufacturer Part Number: EP2AGX65DF29C6N
• Description: IC ARRIA II GX FPGA 65K 780FBGA
• Manufacturer: Altera
• Series: Arria II GXr

Specifications of EP2AGX65DF29C6N

• Number Of Logic Elements/cells: 60214
• Number Of Labs/clbs: 2530
• Total Ram Bits: 5246
• Number Of I /o: 364
• Voltage - Supply: 0.87 V ~ 0.93 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 780-FBGA
• Family Name: Arria® II GX
• Number Of Logic Blocks/elements: 63250
• # I/os (max): 364
• Frequency (max): 400MHz
• Operating Supply Voltage (typ): 900mV
• Logic Cells: 63250
• Ram Bits: 5557452.8
• 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: 780
• Package Type: FC-FBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Gates: -
• Lead Free Status / Rohs Status: Compliant

Chapter 8: High-Speed Differential I/O Interfaces and DPA in Arria II GX Devices
Programmable Pre-Emphasis and Programmable V
Programmable Pre-Emphasis and Programmable V
Figure 8–14. LVDS Output Single-Ended Waveform with and without Programmable Pre-Emphasis
Note to
(1) V
© July 2010
P
– voltage boost from pre-emphasis.
Figure
Altera Corporation
8–14:
OUT
OUT
OUT
OUT
Pre-emphasis increases the amplitude of the high frequency component of the output
signal and thus helps to compensate for the frequency-dependent attenuation along
the transmission line.
with and without pre-emphasis. The definition of V
Pre-emphasis is an important feature for high-speed transmission. Without
pre-emphasis, the output current is limited by the V
impedance of the driver. At high frequency, the slew rate may not be fast enough to
reach the full V
pre-emphasis, the output current is boosted momentarily during switching to increase
the output slew rate. The overshoot introduced by the extra current happens only
during switching and does not ring, unlike the overshoot caused by signal reflection.
This overshoot must not be included in the V
The Quartus II software allows two settings for programmable pre-emphasis
control–0 and 1. The setting for pre-emphasis OFF is 0 and pre-emphasis ON is 1. The
default setting in Quartus II software is 1.
OD
OD
.
before the next edge, producing a pattern-dependent jitter. With
V
V
P
P
Figure 8–14
Without Programmable Pre-emphasis
With Programmable Pre-emphasis
V
OD
V
shows the LVDS output single-ended waveform
OD
OD
voltage.
OD
OD
OD
is also shown.
setting and the output
.
Arria II GX Device Handbook, Volume 1
(Note 1)
8–17