Chapter 1: DC and Switching Characteristics

1–10

Switching Characteristics

© December 2008

Altera Corporation

Stratix IV Device Handbook, Volume 4

Power Consumption

The interactive Excel-based Early Power Estimator is typically used prior to designing

the FPGA in order to get a magnitude estimate of the device power. The Quartus II

PowerPlay Power Analyzer provides better quality estimates based on the specifics of

the design after place-and-route is complete. The PowerPlay Power Analyzer can

apply a combination of user-entered, simulation-derived, and estimated signal

activities that, combined with detailed circuit models, can yield very accurate power

estimates.

Estimator User Guide for Stratix III and Stratix IV FPGAs and the PowerPlay Power

Analysis chapter in the Quartus II Handbook.

Switching Characteristics

This section provides performance characteristics of Stratix IV core and periphery

blocks for commercial grade devices.

These characteristics can be designated as Preliminary and Final. Preliminary

characteristics are created using simulation results, process data, and other known

parameters. 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. The upper-right hand corner of

a table shows the designation as “Preliminary” or “Final”.

Transceiver Performance Specifications

This sections describes transceiver performance specifications.

LVPECL

(VIO) (4)

2.37

5

2.5

2.625 300

—

—

0.6

D

700Mbps

1.8

(5)

——

—

———

—

———

—

—

0.6

D

700Mbps

1.6

(5)

——

—

———

(1) VIO (vertical I/O) is top and bottom I/Os; HIO (horizontal I/O) is left and right I/Os.

(2) 1.4V/1.5V PCML transceiver I/O standard specifications are described in the section “Transceiver Performance Specifications” on page 1–10.

(3) RL range: 90 <= RL <= 110

Ω.

(4) LVPECL specifications apply only to CLK input pins on column I/Os.

is 0.45 V; the maximum input voltage is 1.95 V.

I/O

Standard

V

V

V

V

V

Min

Typ

Max

Min Condition

Max

Min

Conditio

nMax

Min

Typ

Ma

xMin

Typ

Max