Glossary - Motorola ASTRO XTS 5000 Detailed Service Manual

Glossary

Term
A/D
ABACUS IC
ADC
ALC
BBP
BGA
CODEC
CPS
D/A
DAC
DTMF
DPL
DSP
DSP Code
EEPOT
Analog-to-Digital conversion. Conversion of an instantaneous dc
voltage level to a corresponding digital value. See also D/A.
Custom integrated circuit providing a digital receiver intermediate
frequency (IF) backend.
Analog-to-Digital Converter. A device that converts analog signals into
digital data. See also DAC.
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.
Baseband Interface Port. SSI (synchronous serial interface) to the
transceiver board used to transfer transmit and receive audio data.
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.
COder/DECoder. A device that encodes or decodes a signal.
Customer Programming Software. Software with a graphical user
interface containing the feature set of an ASTRO radio.
Digital-to-Analog conversion. Conversion of a digital signal to a voltage
that is proportional to the input value. See also A/D.
Digital-to-Analog Converter. A device that converts digital data into
analog signals. See also ADC.
Dual Tone Multi-Frequency.
Digital Private-Line. A type of digital communications that utilizes
privacy call, as well as memory channel and busy channel lock out to
enhance communication efficiency.
Digital Signal Processor. A microcontroller specifically tailored for signal
processing computations.
Digital Signal Processor Code. Object code executed by the Digital
Signal Processor in an ASTRO subscriber radio. The DSP is
responsible for computation-intensive tasks, such as decoding ASTRO
signaling.
Electrically Programmable Digital Potentiometer.
Definition
Glossary