Glossary – Motorola SSETM 5000 User Manual

Page 209

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Glossary

Glossary

This glossary contains an alphabetical listing of terms and their definitions that are applicable to
portable and mobile subscriber radio products.

Term

Definition

A/D

See analog-to-digital conversion.

Abacus IC

A custom integrated circuit providing a digital receiver intermediate
frequency (IF) backend.

ADC

See analog-to-digital converter.

ALC

See automatic level control.

analog

Refers to a continuously variable signal or a circuit or device designed
to handle such signals. See also digital.

analog-to-digital
conversion

Conversion of an instantaneous dc voltage level to a corresponding
digital value. See also D/A.

analog-to-digital
converter

A device that converts analog signals into digital data. See also DAC.

antenna

Any structure or device used to collect or radiate electromagnetic
waves.

automatic level
control

A circuit in the transmit RF path that controls RF power amplifier output,
provides leveling over frequency and voltage, and protects against high
VSWR.

band

Frequencies allowed for a specific purpose.

BBP

See baseband interface port.

baseband interface
port

Synchronous serial interface to the transceiver board used to transfer
transmit and receive audio data.

BGA

See ball grid array.

ball grid array

A type of IC package characterized by solder balls arranged in a grid
that are located on the underside of the package.

clear to send

A handshaking signal (used in communication links, especially RS232)
used by a transmitter to indicate to a receiver that transmission may
proceed. Generated in response to a request-to-send signal. See also
request to send.

CODEC

See coder/decoder.

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