Attenuators

PRODUCTS AND SERVICES

The Si5403B NetSync Network Synchronizer Clock utilizes DSPLL technology and is capable of meeting the requirements of SyncE-compliant wander filtering and software adjustment of output frequency and phase for IEEE 1588 applications.

The TSX Series of chip attenuators pushes the boundaries of SWaP in a cost effective, easy-to-implement surface mount solution, suitable for a wide array of applications.

Skyworks offers the SMP1307 Series of plastic packaged, surface mountable, low capacitance silicon PIN diodes designed for attenuator applications operating from 5 MHz to beyond 2 GHz. With a thick 175 μm I region width, these PIN diodes are ideal for use in very low distortion Pi and TEE attenuators commonly found in TV distribution applications.

JFW's 75BA-004-95-127 is a 75 Ohm benchtop attenuator assembly containing two solid-state step attenuators. The attenuators have an attenuation range of 0 to 95dB by 1dB steps and operate from 5 MHz to 2150 GHz. 

The Skyworks family of wireless jitter attenuators offers CMOS integration, reduced power, low noise and size without compromising the stringent performance and reliability required in wireless applications.

The 10 dB Fixed Attenuator LCAT1004-10 is rated to 2 Watts and operates from DC to 6 GHz. The versatile coaxial package uses type N male to type N female connectors and is also RoHS compliant.

The Si5518B NetSync Network Synchronizer Clock combines the functions of a SyncE/IEEE 1588 PTP network synchronizer clock with a low phase noise 5G/eCPRI wireless jitter attenuator into a single IC device.

The 50PA-1197 from JFW is a 50 Ohm benchtop attenuator assembly that contains 24 solid-state step attenuators. The attenuators can be controlled manually with the keypad or remotely via Ethernet or Serial connection.

ABOUT

Attenuators are the exact opposite of an amplifier. An attenuator is used to reduce the intensity of either electricity or sound. For example, the digital impulse that is used to drive a speaker may be stepped down to prevent the lower range speakers from failing. An equalizer in music is a form of amplifier and attenuator rolled up into one. However, it targets on particular frequency. Every instrument in a musical symphony and even the human voice occupy a certain frequency range. As an example, each note of a violin has a very specific frequency. The A string on a violin is exactly 440Hz. Using an attenuator, one can target the exact frequency of 440Hz and reduce its intensity. It can even be attenuated all the way down to zero. If this were to happen, then every time an A not of a violin was played, it would not be heard.

This sort of technology is used to clean up sounds of recordings and other sounds in a recording. It is even possible to pinpoint the frequency range of the human voice then use an attenuator to reduce it to zero. Imagine if one were to take a recording of a song and attenuate just the vocal portion, the song will now resemble a minus-one track.

Attenuators have other more sophisticated commercial uses. They can be used to reduce the electrical impulses that were amplified to travel long distances and may still carry strong energy when it arrives, so it needs to be attenuated before it is channeled for processing.