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What is SPDIF? (SPDIF FAQ)

By elecsky • 十一 16th, 2008 • Category: Audio-Technical

SPDIF (Sony/Philips Digital Interconnect Format) is a digital audio format, and is also referred to as S/PDIF, S/P-DIF, and IEC 958 type II.
SPDIF is used for transporting stereo digital audio signals on PC audio cards, CD players, DVD players, ...



PCM2902 USB to SPDIF with HeadPhone Amplifier and MIC

By elecsky • 十一 6th, 2008 • Category: Audio-Product

Buy IT Now
HA Sound Master 29 USB SoundCard with HeadPhone Amplifier and SPDIF digital output
HA Sound Master 29 uses Burr-Brown company USB decoder chip PCM2902 design. Built-in optimized and improved for the Hi-Fi fans who delight in tal...



USB TO SPDIF converter(Use CM102)

By elecsky • 十 28th, 2008 • Category: Audio-Product

USB TO SPDIF converter(Use CM102)
USB TO SPDIF converter,Use CM102 chip, 74HC04 high-speed plastic, ST - DV709 Special digital audio coupler. SPDIF coaxial signal output, Digital waveform very neatly! ! Used in the External sound card, DAC dec...



50W PLL FM Radio Stereo Broadcast Transmitter with LCD

By elecsky • 八 3rd, 2008 • Category: FM-Product

This is a very professional FM transmitter.

1, uses:This product is on campus FM radio, rural radio, car FM radio, the ideal district FM radio FM broadcasting equipment.
2, performance characteristics:

The red double-sided...



What is RDS ?

By elecsky • 七 30th, 2008 • Category: Basis

A Brief Introduction to RDS (Radio Data System for VHF/FM broadcasting)
The use of more and more frequencies for radio programmes in the VHF/FM range make it inceasingly difficult to tune a conventional radio to a desired programme. This kind of...



FM Modulator

By elecsky • 七 29th, 2008 • Category: Basis

This allows you to play the music from your CD changer through your FM radio.

...


BH1414K Wireless (FM transmitter) Audio Link IC

By elecsky • 七 27th, 2008 • Category: Wireless

The BH1414K is a FM stereo transmitter IC that uses a simple configuration. This IC consists of a stereo modulator for generating stereo composite signals and a FM transmitter for broadcasting a FM signal on the air. A high S/N ratio and good timbre t...



What’s the FM & AM

By elecsky • 七 23rd, 2008 • Category: Basis

FM radio works the same way that AM radio works. The difference is in how the carrier wave is modulated, or altered. With AM radio, the amplitude, or overall strength, of the signal is varied to incorporate the sound information. With FM, the frequenc...



The Early Years of Radio

By elecsky • 七 23rd, 2008 • Category: Basis

To the shipboard radio operators, it was a miracle — a Christmas miracle. Instead of hearing the usual dots and dashes of Morse Code, these listeners heard an eerie Silent Night, played by a violin. It was Christmas Eve, 1906, and this broadcast...



what is PLL?

By elecsky • 七 23rd, 2008 • Category: Basis

Short for phase-locked loop, an electronic circuit that controls an oscillator so that it maintains a constant phase angle (i.e., lock) on the frequency of an input, or reference, signal. A PLL ensures that a communication signal is locked on a specif...