GS1582-IBE3 View Datasheet(PDF) - Semtech Corporation

Part Name

Description

Manufacturer

GS1582-IBE3

Multi-Rate Serializer with Cable Driver, Audio Multiplexer and ClockCleaner™

Semtech Corporation 

• Left Justified; LSB first

• Right Justified; MSB first

• Right Justified; LSB first

The audio input format for each audio group is configured using the AMA[1:0] (group 1

channels 1 and 2/Stereo Pair A), AMB[1:0] (group 1 channels 3 and 4/Stereo Pair B),

AMC[1:0] (group 2 channels 5 and 6/Stereo Pair C), and AMD[1:0] (group 2 channels 7

and 8/Stereo Pair D) host interface registers. The default audio mode is I2S input. For

serial input formats, MSB first is default, and LSB first is available via the LSB_FIRSTx bit

in the host interface.

NOTE: Since the audio clocks are common to all channels within one group, all channels

in each group of four must be the same format. However there is no restriction on the

format of different channels in one group when audio is in AES/EBU format. Also, the

audio format of each group may be different.

Table 4-15: Audio Input Formats

AMx[1:0]

00

01

01

10

10

11

LSB_FIRSTx

0

0

1

0

1

0

Audio Output Format

AES/EBU audio input

Serial audio input: Left justified; MSB first

Serial audio input: Left justified; LSB first

Serial audio input: Right justified; MSB first

Serial audio input: Right justified; LSB first

I2S serial audio input (Default)

4.7.17.1 AES/EBU Mode

In AES/EBU input mode, the audio sample bit rate of 64fs (3.072MHz) is effectively

doubled by the bi-phase mark encoding, resulting in an effective input data rate at 128fs

(6.144MHz). The AES/EBU sub-frame formatting is shown in Figure 4-19 below.

GS1582 Multi-Rate Serializer with Cable Driver, Audio

Multiplexer and ClockCleanerTM

Data Sheet

40117 - 4

December 2011

54 of 115

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