EP2AGX95EF29C4N Altera, EP2AGX95EF29C4N Datasheet - Page 250

• Manufacturer Part Number: EP2AGX95EF29C4N
• Description: IC ARRIA II GX FPGA 95K 780FBGA
• Manufacturer: Altera
• Series: Arria II GXr

Specifications of EP2AGX95EF29C4N

• Number Of Logic Elements/cells: 89178
• Number Of Labs/clbs: 3747
• Total Ram Bits: 6679
• Number Of I /o: 372
• 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: 93674
• # I/os (max): 372
• Frequency (max): 500MHz
• Operating Supply Voltage (typ): 900mV
• Logic Cells: 93674
• Ram Bits: 7025459.2
• 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

8–10
Figure 8–7. LVDS Output Single-Ended Waveform with and without Programmable Pre-Emphasis
Note to
(1) V
Arria II Device Handbook Volume 1: Device Interfaces and Integration
P
– voltage boost from pre-emphasis.
Figure
Programmable Pre-Emphasis and Programmable V
8–7:
OUT
OUT
OUT
OUT
Pre-emphasis increases the amplitude of the high frequency component of the output
signal, which helps to compensate for the frequency-dependent attenuation along the
transmission line.
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
Table 8–5
emphasis in the Quartus II software Assignment Editor.
Table 8–5. Programmable Pre-Emphasis Settings in Quartus II Software Assignment Editor
Programmable Pre-Emphasis
Assignment Name
lists the assignment name and its possible values for programmable pre-
OD
Figure 8–7
before the next edge, producing a pattern-dependent jitter. With
V
V
P
P
Without Programmable Pre-emphasis
With Programmable Pre-emphasis
Chapter 8: High-Speed Differential I/O Interfaces and DPA in Arria II Devices
shows the LVDS output single-ended waveform with
V
OD
V
OD
0 (off), 1 (default on)
Arria II GX Device
OD
OD
voltage.
is also shown.
Assignment Value
OD
OD
setting and the output
.
December 2010 Altera Corporation
Arria II GZ Device
(Note 1)
2 (medium high),
1 (medium low),
0 (default zero),
Differential Transmitter
3 (high)