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NJW1104 Datasheet(PDF) 1 Page - New Japan Radio

Part No. NJW1104
Description  DOLBY PRO LOGIC SURROUND DECODER
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Manufacturer  NJRC [New Japan Radio]
Direct Link  http://www.njr.co.jp/index_e.htm
Logo NJRC - New Japan Radio

NJW1104 Datasheet(HTML) 1 Page - New Japan Radio

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PPRELIMINARY
Ver.1.0
NJW1104
- 1 -
DOLBY PRO LOGIC SURROUND DECODER
n
n
n
n GENERAL DESCRIPTION
n
n
n
n PACKAGE OUTLINE
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.
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.
n
n
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n FEATURES
l Operating Voltage : VCC=10V(Analog Block), VDD=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
n
n
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.)
[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)
n
n
n
n SYSTEM BLOCK DIAGRAM
EXTIN
7KHz
LPF
SW. Controller
ADD/SUB
.
L+R
L-R
Center Mode
Modified
B-NR
MCU Interface
Delay
Input Autobalance
Noise Sequencer
Adaptive Matrix
RIN
LOUT
COUT
ROUT
SOUT
LIN
NJW1104FC2-80
NJW1104FC2


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