新闻
News
2005年的新闻
Attenuator PIN diodes featuring the industry's lowest distortion characteristics - ideally
suited for car audio system AGC circuits
07.22.2005
ROHM has recently completed development of the RN771V, RN779F, and RN779D series of PIN diodes that utilize original technology in order to control conductivity modulation - a major cause of distortion. As a result, the products possess distortion characteristics at least 1dB lower (with 110dB input) than conventional units, enabling stable signal reception with low noise, making them optimally suited for controlling the output signal size in AGC circuits in car audio systems and attenuators.
· Features
- Low distortion characteristics - suitable for AM circuits
- High-linearity Rf characteristics
- Broad package lineup : from 2012 to 2916
Shipment of samples will begin in July of 2005, with actual mass production (1,000,000pcs of each part
type/month) starting in August of 2005 at ROHM Wako Device in Japan (for front-end processing),
ROHM Apollo Electronics in Thailand, ROHM Semiconductor in China, and ROHM Korea (for back-end processing).
· Explanation of Terms
- AGC (Auto Gain Control) circuit
A circuit in an amplifier that maintains a certain output even if the input level signal changes.
- Rf (forward resistance) characteristics
Refers to high-frequency forward resistance - the resistance acting on the high-frequency signal
that passes through a diode when direct current is applied to the diode.
|
