BCK

DATA

LRCK

0. 5 * DVDD

0. 5 * DVDD

0. 5 * DVDD

(Input)

(Input)

(Input)

PCM5100A, PCM5101A, PCM5102A

www.ti.com

SLAS859 – MAY 2012

PCM Audio Data Formats and Timing

All formats require binary 2s complement, MSB-first audio data. Figure 14 shows a detailed timing diagram for

the serial audio interface.

Figure 14. PCM510xA Serial Audio Timing - Slave

Table 7. Audio Interface Slave Timing

Parameters

Min

Max

Units

BCK Pulse Cycle Time

40

ns

BCK Pulse Width LOW

16

ns

BCK Pulse Width HIGH

16

ns

BCK Rising Edge to LRCK Edge

8

ns

LRCK Edge to BCK Rising Edge

8

ns

DATA Set Up Time

8

ns

DATA Hold Time

8

ns

BCK frequency @ DVDD=3.3V

24.576

MHz

BCK frequency @ DVDD=1.8V

12.288

MHz

Copyright © 2012, Texas Instruments Incorporated

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Product Folder Link(s): PCM5100A PCM5101A PCM5102A