M62460FP Datasheet, PDF (16/20 Pages) Mitsubishi Electric Semiconductor – “Super Single Chip” Surround Processor with Dolby Pro Logic Decoder

MITSUBISHI SOUND PROCESSORS
M62460FP
“Super Single Chip” Surround Processor
with Dolby Pro Logic Decoder
14.FUNCTION
Block Diagram
Lin
Rin
MIC
VREFA
AVcc
(+9V)
AGND
NOISE
SEQUENCER
(L+R)
2
(L-R)
2
S'
SELECTOR2
MIC
ADAPTIVE
MATRIX
MIC
MIX
BY-PASS
PLOLOGIC
OTHER
MUTE
SELECTOR1
L _CENTER
R ^MODE
CONTROL
C
WIDE
NORMAL
PHANTOM
OFF
ADD/SUB
3STEREO/MUTE
SELECTOR3
Modifide BNR
BNR
OUT
DOUT
C.Trimmer
(0~-31dB)
+-
S.Trimmer
(0~-31dB)
MOS
SU
EC
Digital Deley
VOL
+
Delay Mix SW
MCU Interface
Lout
Rout
Cout
CT
Sout
Dout
LO1
LO2
LO3
GND
Echo filter
Surround filter
7kHz
LPF
AVDD VDD
(+5V)
REQ SCK DATA
4MHz
Block name
INPUT
BALANCE
NOISE
SEQUENCER
ADAPTIVE
MATRIX
CENTER MODE
CONTROL
C.Trimmer
S.Trimmer
Function
Correction of a level error between the input Lch and
Rch for optimum decorder performance
A noise sequencer circuit for ajustment of output level
Determine the direction and relative magnitude of
encoded soundfield.
Select 4 - center mode position
(WIDE,NORMAL,PHANTOM,OFF)
This is the level ajustment volum of Cch and Sch.
( 0~ -30 dB : 1dB/step )
MITSUBISHI
ELECTRIC
( 16 / 20 )
C-62460-72E