STA014B datasheet(36/45 Pages) STMICROELECTRONICS

부품명	STA014B

상세설명	MPEG 2.5 LAYER III AUDIO DECODER WITH ADPCM AND SRS WOWO POSTPROCESSING CAPABILITY

PDF	45 Pages

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제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

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5.4. TIMING DIAGRAMS

5.4.1. Audio DAC Interface

a) OCLK in output. The audio PLL is used to clock the DAC

OCLK (OUTPUT)

SDO

SCKT

LRCLK

tsdo

tsckt

tlrclk

D98AU969

Pad-timing versus load

Load (pF)

Pad_timing

2.90ns

3.82ns

4.68ns

100

5.52ns

Cload_XXX is the load in pF on the XXX output.

pad_timing (Cload_XXX) is the propagation delay

added to the XXX pad due to the load.

tsdo = 3.5 + pad_timing (Cload_SDO) - pad_timing

(Cload_ OCLK)

tsckt = 4 + pad_timing (Cload_SCKT) - pad_timing

(Cload_ OCLK)

tlrckt = 3.5 + pad_timing (Cload_LRCCKT) -

pad_timing (Cload_ OCLK)

OCLK (INPUT)

SDO

SCKT

LRCLK

tsdo

tsckt

tlrclk

D98AU970

thi

tlo

toclk

b) OCLK in input.

Thi min = 3ns

Tlo min = 3ns

Toclk min = 25ns

tsdo = 5.5 + pad_timing (Cload_SDO) ns

tsckt = 6 + pad_timing (Cload_SCKT) ns

tlrckt = 5.5 + pad_timing (Cload_LRCKT) ns

STA014-STA014B-STA014T

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