REJ03F0275-0200 Rev.2.00 Jun 16, 2008

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M62463AFP

Dolby Pro Logic Surround Decoder

REJ03F0275-0200

Rev.2.00

Jun 16, 2008

Description

The M62463AFP is a single chip Dolby Pro Logic surround decoder. This LSI has all of required functions for Dolby

Pro Logic surround.

Note: Dolby and the double-D symbol are trademarks of Dolby laboratories licensing corporation. San Francisco,

CA94103-4813, USA.

This device available only to licensees of Dolby Lab.

Licensing and application information may be obtained from Dolby Lab.

Features

• Includes all functions necessary for Dolby Pro Logic surround

⎯ Adaptive matrix

⎯ Input auto-balance

⎯ Noise sequencer

⎯ Center mode control ON/OFF, WIDE/NORMAL/PHANTOM

⎯ Modified Dolby B type noise reduction

⎯ 4 channel (Lch/Rch/Cch/Sch) / 3 channel (Lch/Rch/Cch)

⎯ Digital delay Delay time: 15.4 to 51.2 ms

• Cch/Sch master volume: 0 to –87 dB / 1 dB step, –∞

• 3-lines MCU control

• Space surround such as Disco, Hall and Live

• Digital echo for Karaoke function Delay time: 123,184 ms

• Current control oscillation circuit for system clock

System Configuration

Lch IN

Input

auto-

balance

control

Noise

sequencer

Digital delay

Adaptive

matrix

S'

7 kHz

LPF

Modified

Dolby

B-NR

Master

volume

M62463AFP

L

R

C

S

Center/

operating

mode

control

Center

master

volume

Surround

master

volume

MCU interface

DATA SCK REQ

Lch

OUT

Lch

Rch

CENTER

SURROUND

Rch

OUT

Cch

OUT

Sch

OUT

L

− R

L + R

2

Rch IN

MIC IN