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NJW1148FP1 Datasheet

  • NJW1148FP1

  • Audio Processor with Sound Enhancement and TruSurround Virtu...

  • 29頁(yè)

  • NJRC

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NJW1148
Audio Processor with Sound Enhancement and TruSurround Virtualizer
I
GENERAL DESCRIPTION
The
NJW1148
is an audio processor with BBE sound enhancement
and SRS Labs' TruSurround virtualizer. It includes all of functions
processing audio signal for TV, such as volume, balance, mute, line out,
tone control, eala NJRC surround and simulated stereo functions. All of
2
internal status and variables are controlled by I C BUS.
I
FEATURES
G
Operating Voltage
8 to 10 V
2
G
I C BUS Interface
(Fast-Mode)
G
Passive TruSurround
G
BBE
0dB to +15dB(0.5dB/step)
G
eala (surround effect ; 2 steps) and Simulated Stereo
GVolume
0 to -80dB, MUTE(0.33dB/step)
GBalance
0 to -30dB, MUTE(1dB/step)
GTone
Control
-15dB to +15dB(0.5dB/step)
G
Bi-CMOS Technology
G
Package Outline
QFP48-P1
I
BLOCK DIAGRAM
BBECHA
BBECLA
TS filter
I
PACKAGE OUTLINE
NJW1148FP1
LINEOUTA
TONECHA
TONECLA
OUTA
GND
V+
Bias
VREF
MIXOUT
INA
AGC
VOL1
Passive Matrix
TruSurround
/ SRS 3D Stereo
/ eala
/ Simulated Stereo
VOL1
BBE
TONE
VOL2
Buffer
VOL2
LFIN
LFOUT
OUTC
I C Interface
& Logic Control
INB
BBE
TONE
VOL2
CAP
BBECHB
BBECLB
TONECHB
TONECLB
OUTB
TS filter
SDA
SCL
AGCTC
LINEOUTB
eala filter
2
鈥?鈥?/div>

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