CXD2720Q-2 datasheet(14/47 Pages) SONY

Part #	CXD2720Q-2

Description	Single-Chip Dolby Pro Logic Surround Decoder

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Manufacturer	SONY [Sony Corporation]

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CXD2720Q-2

(2) Operation Modes

The LRCK/BCK mode and SI/SO system settings can be selected by the setup register settings as follows.

LRCK/BCK Mode Setting

Setup register

SQ11

SQ10

SQ09

LRCK format

LRCK polarity selection

BCK polarity selection relative to LRCK edge

“0” : normal,

“1” : IIS

“0” : Lch High,

“1” : Lch Low

“0” : edge

↓,

“1” : edge

↑

Function

Contents

Table 5-2. LRCK/BCK Mode Setting

SI/O System Register Setting

SI system

Setup register

SQ08

SQ07

SQ06

SQ05

SI data list

SI frontward/rearward truncation

SI data word length

“0” : MSB first,

“1” : LSB first

“0” : Forward truncation,

“1” : Rearward truncation

SQ06 SQ05

0

: 16 bits

1

: 24 bits

Function

Contents

Table 5-3. SI System Register Setting

SO system

Setup register

SQ04

SQ03

SQ02

SQ01

SO data list

SO forward/rearward truncation

SO data word length

“0” : MSB first,

“1” : LSB first

“0” : Forward truncation,

“1” : Rearward truncation

SQ02 SQ01

0

: 16 bits

0

1

: 18 bits

1

0

: 20 bits

1

: 24 bits

Function

Contents

Table 5-4. SO System Register Setting

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CXD2720Q-2 Datasheet(PDF) 14 Page - Sony Corporation

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