DIX4192IPFBT datasheet(14/60 Pages) BURR-BROWN

14 / 60 page

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MSB

LSB

MSB

LSB

MSB

LSB

MSB

LSB

MSB

LSB

MSB

LRCKA

LRCKB

BC A

BC B

Audio

Daa

LRCKA

LRCKB

BC A

BC B

Audio

Daa

LRCKA

LRCKB

BC A

BC B

Audio

Daa

(a) Left-JustifiedData For a

m t

(b)Right-Justif e Da

i d

taForm t

(c)I S DataFo m t

r a

1/f

Channel1(LeftChannel)

Channel2(RightChannel)

OVERVIEW OF THE AES3 DIGITAL AUDIO INTERFACE PROTOCOL

DIX4192

SBFS031C – JANUARY 2006 – REVISED JUNE 2006

PRODUCT OVERVIEW (continued)

Figure 7. Audio Data Formats

This section introduces the basics of digital audio interface protocols pertaining to the transmitter (DIT) and

receiver (DIR) blocks of the DIX4192. Emphasis is placed upon defining the basic terminology and

characteristics associated with the AES3-2003 standard protocol, the principles of which may also be applied to

a number of consumer-interface variations, including S/PDIF, IEC-60958, and EIAJ CP-1201. It is assumed that

the reader is familiar with the AES3 and S/PDIF interface formats. Additional information is available from the

sources listed in the Reference Documents section.

The AES3-2003 standard defines a technique for two-channel linear PCM data transmission over 110

Ω shielded

twisted-pair cable. The AES-3id document extends the AES3 interface to applications employing 75

Ω coaxial

cable connections. In addition, consumer transmission variants, such as those defined by the S/PDIF, IEC

60958, and CP-1201 standards, utilize the same encoding techniques but with different physical interfaces or

transmission media. Channel status data definitions also vary between professional and consumer interface

implementations.

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