STA027 datasheet(39/44 Pages) STMICROELECTRONICS

39 / 44 page

STA027

6 TABLES

CD00066274

39/44

6.1

Notations

ABO : After BOot (see I).

AEC : After External Config (see I).

BCK: Bit ClocK

BSA: BitStream input interface in Audio mode.

BSB: BitStream input interface in Burst mode.

BS: BitStream input interface.

BYPASSA : decoder BYPASS an Audio stream.

CD : input interface for CD.

CK : ClocK.

CRYCK: CRYstal ClocK provided to the chip by an external crystal.

DBO : During BOot (see I).

DEC : During External Config (see I).

DWT : During Whole Time (see I).

EDB : Every Decoded Block (see I).

EDF : Every Decoded Frame (see I).

LRCK: Left Right ClocK for an I2S interface.

ofact: oversampling factor for PCMCK (PCMCK == ofact * SF).

PCMCK: PCM ClocK (can be generated by the audio PLL).

SF: Sampling Frequency.

SYSCK: SYStem ClocK (clock of the core, can be generated by the system PLL).

X : don’t care.

64 kHz

24 kHz

22.05 kHz

16 kHz

12 kHz

11.025 kHz

8 kHz

192 kHz

176.4 kHz

128 kHz

3, 7, 11, 15 or 19

illegal frequency

Table 25.

index of the Sampling Frequency

Index

Frequency

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