Chapter 1: Cyclone III Device Data Sheet

1–31

Glossary

© January 2010

Altera Corporation

Cyclone III Device Handbook, Volume 2

V

V

CM(DC)

DC Common Mode Input Voltage.

V

DIF( AC )

AC differential Input Voltage: The minimum AC input differential voltage required for switching.

V

DIF( DC)

DC differential Input Voltage: The minimum DC input differential voltage required for switching.

V

IC M

Input Common Mode Voltage: The common mode of the differential signal at the receiver.

V

ID

Input differential Voltage Swing: The difference in voltage between the positive and

complementary conductors of a differential transmission at the receiver.

V

IH

Voltage Input High: The minimum positive voltage applied to the input which is accepted by the

device as a logic high.

V

IH(A C)

High-level AC input voltage.

V

IH(DC )

High-level DC input voltage.

V

IL

Voltage Input Low: The maximum positive voltage applied to the input which is accepted by the

device as a logic low.

V

IL ( AC )

Low-level AC input voltage.

V

IL ( DC)

Low-level DC input voltage.

V

IN

DC input voltage.

V

OC M

Output Common Mode Voltage: The common mode of the differential signal at the transmitter.

V

OD

Output differential Voltage Swing: The difference in voltage between the positive and

complementary conductors of a differential transmission at the transmitter. V

V

OH

Voltage Output High: The maximum positive voltage from an output which the device considers is

accepted as the minimum positive high level.

V

OL

Voltage Output Low: The maximum positive voltage from an output which the device considers is

accepted as the maximum positive low level.

V

OS

Output offset voltage: V

V

OX ( AC)

AC differential Output cross point voltage: The voltage at which the differential output signals must

cross.

V

REF

Reference voltage for SSTL, HSTL I/O Standards.

V

REF (A C)

AC input reference voltage for SSTL, HSTL I/O Standards. V

peak-to-peak AC noise on V

V

REF (DC )

DC input reference voltage for SSTL, HSTL I/O Standards.

V

S WING (A C)

AC differential Input Voltage: AC Input differential voltage required for switching. For the SSTL

Differential I/O Standard, refer to Input Waveforms.

V

SWING (DC)

DC differential Input Voltage: DC Input differential voltage required for switching. For the SSTL

Differential I/O Standard, refer to Input Waveforms.

V

TT

Termination voltage for SSTL, HSTL I/O Standards.

V

X ( AC)

AC differential Input cross point Voltage: The voltage at which the differential input signals must

cross.

W

——

X

——

Y

——

Z

——

Table 1–39. Glossary (Part 5 of 5)

Letter

Term

Definitions