R2S15901SP Ver la hoja de datos (PDF) - Renesas Electronics

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R2S15901SP

Digital Delay IC for “Lip Sync”

Renesas Electronics 

R2S15901SP

Mode Change

The R2S15901SP samples COUNT0 and COUNT1 pins while LRI is low by BCKI. When COUNT0 and COUNT1 are

sampled and changed, they are detected at low interval of LRI. The delay counts start from the following falling edge of

LRI with SDO to be delayed by sample counts + 1.

The SDO output is muted before the first new delay data being issued, when the new mode is recognized. An internal

POR(Power On Reset) circuitry is to setup the initial mode right after power applied.

Digital Audio Delay

COUNT0, 1

LRI

Mode switch detect

BCKI

SDO

23 22 21 20

23 22 21 20

Sample counts + 1

23 22 21 20

SDI

23 22 21 20

Mode change timing

Absolute Maximum Ratings

Parameter

Power supply voltage

Input pin voltage

Power dissipation

Operating temperature

Storage temperature

(Unless otherwise stated, VDD = 2.5V, VSS = 0V, Ta = 25°C)

Symbol

Ratings

Unit

VDD

–0.3 to +2.75

V

VI

–0.3 to 3.6

V

PD

100

mW

Topr

–20 to +75

°C

Tstg

–40 to +125

°C

Rev.1.0 Apr 28, 2005 page 5 of 7

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