Glossary - alphabet order - "R"

RD

This is the symbol for drain resistance. See "crystal oscillation circuit".

Reference: Crystal oscillation circuit


RMS jitter

A type of jitter defined in specification. See "jitter".

Reference: jitter


RTC

Abbreviation for "Real Time Clock". See "Real time clock".

Reference: Real-time clock


Random jitter

A type of jitter defined in specification. See "jitter".

Reference: jitter


Real time clock

A real time clock is a circuit or IC that generates digital data for times and dates, etc. from a reference clock. Usually, the reference clock is a 32.768 kHz crystal unit.

Reference: Real time clock module


Real time clock module

A real time clock module is a crystal device incorporating into a single package a 32.768 kHz crystal unit and a real time clock IC. This module is used in computers and fax machines and other electronic equipment that requires time management functions. Not only do these modules to eliminate the need to design an oscillation circuit and the need to adjust a timepiece function, they also conserve space on the circuit board.

Reference: Real time clock


Real time clock module (RX-8581)

Reflow

Reflow soldering is one method used to solder electronic devices to circuit boards. This method exposes devices to temperatures over +200 ℃, so reflow soldering must be performed carefully, according to the reflow profile.

Reference: Reflow profile


Reflow profile

The reflow profile specifies the temperatures and time periods to be set when using the reflow soldering method to mount electronic devices on circuit boards. Failure to follow these specifications can damage the electronic devices, such as by degrading their characteristics.

Reflow profile soldered product Pb free soldered product

Rf

This is the symbol for feedback resistance. See "crystal oscillation circuit".

Reference: Crystal oscillation circuit


Page Top