HC4GX15 Datasheet, PDF (642/668 Pages) Altera Corporation – HardCopy IV Device Handbook

Chapter 1: DC and Switching Characteristics of HardCopy IV Devices
1–12
Switching Characteristics
Switching Characteristics
This section provides performance characteristics of HardCopy IV core and periphery
blocks for commercial grade devices.
HardCopy IV devices are designed to meet, at minimum, the –3 speed grade of the
HardCopy IV devices. Silicon characterization determines the actual performance of
the HardCopy IV devices. These characteristics are designated as Preliminary or
Final, as defined in the following:
■ Preliminary—Preliminary characteristics are created using simulation results,
process data, and other known parameters.
■ Final—Final numbers are based on actual silicon characterization and testing.
These numbers reflect the actual performance of the device under worst-case silicon
process, voltage, and junction temperature conditions.
Transceiver Performance Specifications
This section describes transceiver performance specifications. Table 1–20 lists
HardCopy IV GX transceiver specifications.
Table 1–20. HardCopy IV GX Transceiver Specifications (Part 1 of 5)
Symbol
Parameter
Minimum
Typical Maximum
Unit
Reference Clock
Input frequency from REFCLK
input pins
Phase frequency detector
(CMU PLL and receiver CDR)
Absolute Vmax for a REFCLK
pin
Operational Vmax for a
REFCLK pin
Absolute Vmin for a REFCLK
pin
Rise/fall time
Duty cycle
Peak-to-peak differential input
voltage
Spread-spectrum modulating
clock frequency
Spread-spectrum downspread
On-chip termination resistors
VICM (AC coupled)
VICM (DC coupled)
Rref
—
—
—
—
—
—
—
—
PCI Express
PCI Express
—
—
HCSL I/O standard for Pci
Express reference clock
—
Transceiver Clocks
Calibration block clock
frequency
—
50
—
672
MHz
50
—
325
MHz
—
—
1.6
V
—
—
1.5
V
-0.4
—
—
V
—
—
0.2
UI
45
—
55
%
200
—
1600
mV
30
—
33
kHz
—
0 to -0.5%
—
—
—
100
—
Ohm
—
1100
—
mV
250
—
550
mV
—
2000 +/-1%
—
Ohm
10
—
125
MHz
© June 2009 Altera Corporation
HardCopy IV Device Handbook Volume 4