NJW1106
PPRELIMINARY
DOLBY PRO LOGIC SURROUND DECODER
n
GENERAL DESCRIPTION
The
NJW1106
is a surround processor including all of the
necessary circuits of Dolby Pro Logic Surround decoder and
digital delay.
2
All of internal statuses are controlled by I C BUS interface.
In addition to Dolby Pro Logic Surround function, it
performs easily other surround function such as Hall, Live,
Disco and others.
n
PACKAGE OUTLINE
NJW1106FC2-80
NJW1106FC2
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.
Purchase of I2C components of New Japan Radio Co., Ltd. or one of its sublicensed Associated
Companies conveys a license under the Philips I2C Patent Rights to use these components in an
I2C system, provided that the system conforms to the I2C Standard Specification as defined by
Philips.
n
FEATURES
l
Operating Voltage : V
CC
=10V(Analog Block), V
DD
=5V(Digital Block)
l
Digital Delay on chip
2
l
I C BUS Interface
SDA, SCL
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, 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
(AUX0-AUX7)
LIN
RIN
Input Autobalance
Noise Sequencer
Adaptive Matrix
Center Mode
LOUT
COUT
ROUT
Modified
BNR
7KHz
LPF
L+R
L-R
EXTIN
Delay
SOUT
I
2
C Interface
SW. Controller
ADD/SUB
SDA
SCL
AUX0-7
MD1
MD2
Ver.1.0
-1-
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