
Chapter 1: DC and Switching Characteristics for Stratix IV Devices
1–17
Switching Characteristics
March 2014
Altera Corporation
Stratix IV Device Handbook
Volume 4: Device Datasheet and Addendum
Transmitter REFCLK
Phase Noise
10 Hz
—
-50
—
-50
—
-50
dBc/Hz
100 Hz
—
-80
—
-80
—
-80
dBc/Hz
1 KHz
—
-110
—
-110
—
-110
dBc/Hz
10 KHz
—
-120
—
-120
—
-120
dBc/Hz
100 KHz
—
-120
—
-120
—
-120
dBc/Hz
1 MHz
—
-130
—
-130
—
-130
dBc/Hz
Transmitter REFCLK
Phase Jitter (rms)
for 100 MHz
10 KHz to
20 MHz
——
3
—
3
—
3
ps
RREF
——
2000
±1%
——
2000 ±
1%
——
2000
± 1%
—
Transceiver Clocks
Calibration block
clock frequency
—
10
—
125
10
—
125
10
—
125
MHz
fixedclk
clock
frequency
PCIe Receiver
Detect
—
125
—
125
—
125
—
MHz
reconfig_clk
clock frequency
Dynamic
reconfiguration
clock frequency
2.5/
37.5
—50
2.5/
37.5
—50
2.5/
37.5
—50
—
Delta time between
reconfig_clks
——
—
2
—
2
—
2
ms
Transceiver block
minimum
power-down
(gxb_powerdown)
pulse width
—1
—
1
—
1
—
s
Receiver
Supported I/O
Standards
1.4 V PCML, 1.5 V PCML, 2.5 V PCML, LVPECL, LVDS
Data rate (Single
width, non-PMA
—
600
—
3750
600
—
3750
600
—
3750
Mbps
Data rate (Double
width, non-PMA
—
1000
—
8500
1000
—
6500
1000
—
6375
Mbps
Data rate (Single
width, PMA Direct)
—
600
—
3250
600
—
3250
600
—
3250
Mbps
Table 1–23. Transceiver Specifications for Stratix IV GX Devices (Part 2 of 9)
Symbol/
Description
Conditions
–2 Commercial
Speed Grade
–3 Commercial/
Industrial and
–2× Commercial
Speed Grade (1)
–3 Military (2)
and –4
Commercial/Industrial
Speed Grade
Unit
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max