M62463AFP Datasheet, PDF (1/17 Pages) Mitsubishi Electric Semiconductor – Dolby Pro Logic Surround Decoder

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
M62463AFP
Lch IN
Rch IN
MIC IN
Input
auto-
balance
control
L−R
L+R
2
Noise
sequencer
L
Adaptive
R
matrix
C
Center/
S'
operating
mode
7 kHz
LPF
Modified ^S
Dolby
B-NR
control
Center
master
volume
Surround
master
volume
Digital delay
MCU interface
DATA SCK REQ
Lch
OUT
Rch ^Master
OUT volume
Cch
OUT
Sch
OUT
Lch
Rch
CENTER
SURROUND
REJ03F0275-0200 Rev.2.00 Jun 16, 2008
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