February 14, 2012 6816985H01-F
Glossary-4 Glossary
TSOP Thin Small-Outline Package. A type of dynamic random-access
memory (DRAM) package that is commonly used in memory
applications.
UART Universal Asynchronous Receiver Transmitter. A microchip with
programming that controls a computer's interface to its attached serial
devices.
VCO Voltage-Controlled Oscillator; an oscillator in which the frequency of
oscillation can be varied by changing a control voltage.
VCOB IC Voltage-Controlled Oscillator Buffer IC.
Vocoder VOice enCODER; the DSP-based system for digitally processing the
analog signals, includes the capabilities of performing voice
compression algorithms or voice encoding.
VSELP Vector Sum Excited Linear Predictive coding; a voice encoding
technique used in ASTRO digital voice.
VSWR Voltage Standing Wave Ratio. The ratio of the maximum voltage to the
minimum voltage on a transmission line. An indicator of how well an RF
device's input or output impedance matches the nominal impedance of
the system.
Term Definition