NJW1104 Datasheet, PDF (1/6 Pages) New Japan Radio – DOLBY PRO LOGIC SURROUND DECODER

NJW1104
PPRELIMINARY
DOLBY PRO LOGIC SURROUND DECODER
n GENERAL DESCRIPTION
The NJW1104 is a surround processor including all of
n PACKAGE OUTLINE
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.
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.)
[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 SYSTEM BLOCK DIAGRAM
LIN
RIN
EXTIN
Input Autobalance
Noise Sequencer
Adaptive Matrix
L+R
L-R
MCU Interface
Center Mode
Delay
SW. Controller
Modified
B-NR
7KHz
LPF
ADD/SUB
.
LOUT
COUT
ROUT
SOUT
Ver.1.0
-1-