SM5844 查看數據表（PDF） - Nippon Precision Circuits

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SM5844

Asynchronous Sample Rate Converter

Nippon Precision Circuits  

BCKI, DI, LRCI inputs

Parameter

BCKI LOW -level pulsewidth

BCKI HIGH-level pulsewidth

BCKI pulse cycle

DI setup time

DI hold time

Last BCKI rising edge to LRCI edge

LRCI edge to first BCKI rising edge

BCKI, DI, LRCI timing

BCKI

DI

LRCI

SM5844AF

Symbol

tB C W L 1

tB C W H 1

tB C Y 1

tD S

tD H

tB L 1

tL B 1

Rating

min

typ

max

50

–

–

50

–

–

100

–

–

50

–

–

50

–

–

50

–

–

50

–

–

t BCWH1

t BCY1

t BCWL1

t DS

t DH

t BL1

t LB1

BCKO, LRCO (Inputs when SLAVE = HIGH)

Parameter

Symbol

Rating

min

typ

max

B C KO LOW -level pulsewidth

BCKO HIGH-level pulsewidth

BCKO pulse cycle1

Last BCKO rising edge to LRCO edge

LRCO edge to first BCKO rising edge

tB C W L 2

78

–

–

tB C W H 2

78

–

–

tB C Y 2

156

–

–

tB L 2

78

–

–

tL B 2

78

–

–

1. BCKO clock inputs exceeding 64fso cannot be detected, and will cause incorrect operation.

Unit

ns

ns

ns

ns

ns

ns

ns

0.5VDD

0.5VDD

0.5VDD

Unit

ns

ns

ns

ns

ns

NIPPON PRECISION CIRCUITS—7

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