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EP4CE15E22C8N Datasheet, PDF (17/42 Pages) Altera Corporation – 1. Cyclone IV Device Datasheet | |||
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Chapter 1: Cyclone IV Device Datasheet
1â17
Switching Characteristics
Transceiver Performance Specifications
Table 1â21 lists the Cyclone IV GX transceiver specifications.
Table 1â21. Transceiver Specification for Cyclone IV GX Devices (Part 1 of 4)
Symbol/
Description
Conditions
C6
C7, I7
C8
Unit
Min Typ
Max Min Typ Max Min Typ Max
Reference Clock
Supported I/O
Standards
Input frequency
from REFCLK input
pins
Spread-spectrum
modulating clock
frequency
Spread-spectrum
downspread
Peak-to-peak
differential input
voltage
VICM (AC coupled)
VICM (DC coupled)
Transmitter REFCLK
Phase Noise (1)
Transmitter REFCLK
Total Jitter (1)
Rref
1.2 V PCML, 1.5 V PCML, 3.3 V PCML, Differential LVPECL, LVDS, HCSL
â
50
â 156.25 50
â 156.25 50
â 156.25
Physical interface
for PCI Express 30 â
33
(PIPE) mode
PIPE mode
â
0 to
â0.5%
â
30
â
33
â
0 to
â0.5%
â
30 â
33
â
0 to
â0.5%
â
â
0.1 â
1.6
0.1 â
1.6 0.1 â
1.6
â
1100 ± 5%
HCSL I/O
standard for PCIe 250 â
550
reference clock
â
â
â123
Frequency offset
= 1 MHz â 8 MHZ
ââ
42.3
â
â
2000
± 1%
â
1100 ± 5%
1100 ± 5%
250 â 550 250 â
550
â â â123 â â â123
â
â 42.3 â
â
42.3
â
2000
± 1%
â
â
2000
± 1%
â
MHz
kHz
â
V
mV
mV
dBc/Hz
ps
ï
Transceiver Clock
cal_blk_clk clock
frequency
â
10 â
fixedclk clock
frequency
PCIe Receiver
Detect
â 125
reconfig_clk
clock frequency
Dynamic
2.5/
reconfiguration 37.5 â
clock frequency
(2)
Delta time between
â
ââ
reconfig_clk
Transceiver block
minimum
power-down pulse
width
â
â
1
125
10
â 125 10 â
125 MHz
â
â 125 â
â 125
â
MHz
2.5/
2.5/
50
37.5 â
50 37.5 â
(2)
(2)
50 MHz
2
ââ
2
ââ
2
ms
â
â
1
ââ
1
â
µs
Receiver
May 2013 Altera Corporation
Cyclone IV Device Handbook,
Volume 3
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