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S/PDIF,Optical Toslink Connector |
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TOSLINK |
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TOSLINK is a standardized optical fiber connections systems.Uts most common use is in consumer equipment,where ut carries a digital audio stream between components such as MiniDisc and CD players.
TOSLINK may use inexpensive 1mm plastic optical fiber or it can use higher quality multi-strand plastic optical fibers or even quartz glass optical fibers depending on the desired bandwidth and application.TOSLINK was originally created by Toshiba to connect their CD players to their receivers for PCM audio streams,but it was soon adopted for most CD players,regardless of manufacturer.Early ToSLINK systems used raw data from the CD player, but the S/PDIF standard has now become fairly universal for audio streams.It can also be found on DVD players to connect the digital audio stream to Dolby Digital/DTS decoders.
TOSLINK has many applications, using several different connector types.However,audio connections using the JIS F05 (JIS C5974-1993 F05) connector are by far the most common.
TOSLINK is a registered tradmark of Toshiba Corporation.Variations of the name are often seen,such as TOSlink,TosLink,Ton-Link.The generic name for the standard is EIAJ optical. |
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S/PDIF |
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S/PDIF is the Sony and Philips Digital Interconnect Format.It can carry a stereo pair of channels with a sampling rate of up to 96 Ksps(Kilo-samples per second) and with a sample precision of up to 24 bits.The S/PDIF output from CD players first inside this envelope,being only 16 bits per sample at 44.1Ksps.S/PDIF receivers can often automatically adapt to the rate and precision being delivered to them.When different sampling precisions are used,the most significant bit is always at the same position in the frame.This means that if the transmitted precision is greater or lower than the receiver can render,then the least significant bits become automatically dropped or padded with zero respectively.
S/PDIF was first used in the commercial hi-fi world to connect CD mechanisms to external DACs,however at least one hi-fi company today makes hi-fi separates which are interconnected using S/PDIF,include an S/PDIF pre-amplifier which digital input and output and active loudspeakers with S/PDIF input and digital cross-overs.S/PDIF is now widely found on DAT players and home theater separates. |
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