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NJW1104FC2-80 Datasheet

  • NJW1104FC2-80

  • DOLBY PRO LOGIC SURROUND DECODER

  • 6頁(yè)

  • NJRC

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NJW1104
PPRELIMINARY
DOLBY PRO LOGIC SURROUND DECODER
n
GENERAL DESCRIPTION
The
NJW1104
is a surround processor including all of
the necessary circuits of Dolby Pro Logic Surround
decoder and digital delay.
In addition to Dolby Pro Logic Surround function, it
performs easily other surround function such as Hall, Live,
Disco and others.
n
PACKAGE OUTLINE
NJW1104FC2-80
Dolby and double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.
San Francisco, CA94103-4813.USA.
This device is available only to licensees of Dolby Lab.
Licensing and application information may be obtained from Dolby Lab.
NJW1104FC2
n
FEATURES
l
Operating Voltage : V
CC
=10V(Analog Block), V
DD
=5V(Digital Block)
l
Digital Delay on chip
l
Serial Data Interface(3-wire)
DATA, REQ, SCK
l
Bi-CMOS Technology
l
Package Outline
QFP80, QFP100
n
FUNCTION
[Dolby Pro Logic Surround]
l
Automatic input balance
l
Noise sequencer
l
Adaptive matrix
l
Center channel control
(Wide band, Normal, Phantom, Off)
l
Modified B-type noise reduction
l
7kHz low-pass filter
l
Dolby 3 stereo mode
l
Digital time delay(15,20,25,30msec.)
n
SYSTEM BLOCK DIAGRAM
[Other Surround]
l
Surround Signal Selector
(L+R, L-R, EXTIN)
l
Front mixing control
l
Digital time delay
(15,20,25,30,40,50,60msec.)
[Other Function]
l
Digital auxiliary outputs
(AUX1-AUX10)
LIN
RIN
Input Autobalance
Noise Sequencer
Adaptive Matrix
L+R
L-R
Center Mode
LOUT
COUT
ROUT
Modified
B-NR
7KHz
LPF
EXTIN
Delay
SOUT
MCU Interface
SW. Controller
ADD/SUB
.
DATA
SCK
REQ
AUX1-10
MD2
MD1
Ver.1.0
-1-

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