NJW1172 PDF даташит
Спецификация NJW1172 изготовлена «New Japan Radio» и имеет функцию, называемую «AUDIO PROCESSOR». |
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Детали детали
Номер произв | NJW1172 |
Описание | AUDIO PROCESSOR |
Производители | New Japan Radio |
логотип |
23 Pages
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NJW1172
AUDIO PROCESSOR
www.dastasGhEeeNt4EuR.coAmL DESCRIPTION
s PACKAGE OUTLINE
The NJW1172 is a sound processor includes all of the
functions required to process the audio signal for TV, such
as tone control, balance, volume, mute, and AGC functions.
Also the NJW1172 performs BBE sound enhancement
and SRS 3D Stereo. The BBE regenerates high definitive
and nearly real sound, and SRS 3D Stereo regenerates 3D
surround sound with only two speakers.
All of the internal status and variables are controlled by
I2C BUS interface.
NJW1172GK1
s FEATURES
qOperating Voltage
8 to 13V
q I2C BUS Interface
q BBE Sound Enhancement (Low Boost and High Boost: 15dB max.)
q Internal 6 Input Audio Selectors and Monitor Output
q The AGC circuit reduces volume difference among input sources.
q Variable AGC Compression Level via I2C (4-levels)
q SRS 3D Stereo and Simulated Stereo
q Variable Surround Effect Level via I2C
q Low Noise VCA
q Bi-CMOS Technology
q Package Outline
SOP40-K1
sBLOCK DIAGRAM
IN1a
IN2a
IN3a
IN4a
IN5a
IN6a
IN1b
IN2b
IN3b
IN4b
IN5b
IN6b
MONa VCAINa AGC
SEL VOL1
AGC
SEL VOL1
MONb VCAINb
SRS
3D Stereo
&
Sim ulated
Stere o
TONE TONE
-Ha -La
OUTa
BBE
TONE
VOL2
BBE
TONE
VOL2
I2C BUS
Interface
SDA
SCL
CVA
CVB
CTH
CTL
CSR
CSB
Bias
GND
Vcc
TONE TONE
-Hb -Lb
OUTb
Vref
-1-
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NJW1172
s PIN CONFIGURATION
www.datasheet4u.com
Ach Input Terminal 1 1 IN1a
Ach Input Terminal 2 2 IN2a
Ach Input Terminal 3 3 IN3a
Ach Input Terminal 4 4 IN4a
Ach Input Terminal 5 5 IN5a
Ach Input Terminal 6 6 IN6a
Ach Monitor Output Terminal 7 MONa
Surround Filter 1 8 SRS/SS FIL1
Ach BBE Filter 1 9 BBE1a
Ach BBE Filter 2 10 BBE2a
Ach Treble Filter 11
Ach Bass Filter 12
TO NE-Ha
TO NE-La
Ach VCA Input Terminal 13 V CAINa
Ach Output Terminal (0dB) 14 OUTa
AGC Filter 15
Pop Noise Reduction Filter
f or Ach V olume & Balance
Pop Noise Reduction Filter
f or Bch V olume & Balance
16
17
I2C Bus Data Input 18
A GC
CV a
CV b
SDA
I2C Bus Clock Input 19 SCL
GND Terminal 20 GND
IN1b 40 Bch Input Terminal 1
IN2b 39 Bch Input Terminal 2
IN3b 38 Bch Input Terminal 3
IN4b 37 Bch Input Terminal 4
IN5b 36 Bch Input Terminal 5
IN6b 35 Bch Input Terminal 6
MONb 34 Bch Monitor Output Terminal
SRS FIL2 33 Surround Filter 2
BBE1b 32 Bch BBE Filter 1
BBE2b 31 Bch BBE Filter 2
TONE-Hb 30 Bch Treble Filter
TONE-Lb 29 Bch Bass Filter
VCA INb 28 Bch V CA Input Terminal
OUTb 27 Bch Output Terminal (0dB)
Pop Noise Reduction Filter
CSR 26 f or Surround ON/OFF Control
CTH 25
Pop Noise Reduction Filter
f or Treble Control
CTL
24
Pop Noise Reduction Filter
f or Bass Control
CSB
23
Pop Noise Reduction Filter
f or BBE ON/OFF Control
V ref 22 Ref erence Voltage Terminal
V+ 21 Pow er Supply Terminal
- 2-
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NJW1172
s ABSOLUTE MAXIMUM RATING (Ta=25°C)
PARAMETER
SYMBOL
www.datSasuhpeeptl4yu.Vcoomltage
Power Dissipation
Operating Temperature Range
V+
PD
Topr
Storage Temperature Range
Tstg
RATING
14
700
-20 to +75
-40 to +125
UNIT
V
mW
°C
°C
s ELECTRICAL CHARACTERISTICS ( Ta=25°C, V+=9V, Rg=600Ω, RL=47kΩ, Vin=100mVrms/1kHz)
PARAMETER
SYMBOL
TEST CONDITION
MIN. TYP. MAX.
Operating Voltage
V+
8.0 9.0 13.0
Supply Current
Reference Voltage
Maximum Input Voltage
Maximum Output Voltage
MON OUT Gain
Maximum Gain
Minimum Gain
ICC
VREF
VIM
VOM
GVMON
GVMAX
GVMIN
No Signal
No Signal
IN1a-6a/IN1b-6b
VOL=-20dB, THD=10%
OUTa/OUTb
VOL=0dB, THD=3%
MON OUT
VOL=0dB
VOL=Mute, Vin=1Vrms
BW=400Hz to 30kHz
- 13 25
4.0 4.5 5.0
2.8 3.0
-
2.0 2.5
-
- 0.0 -
-2.0 0.0 2.0
- - -70
Channel Balance
Balance Level A-A
Balance Level A-B
GCB
BALAA
BALAB
VOL=0dB
CHS=”0”,BAL=”11111”
CHS=”1”,BAL=”11111”
Vin = 1Vrms
-1.5 0.0 1.5
-2.0 0.0 2.0
- - -70
Balance Level B-B
Balance Level B-A
Total Harmonic Distortion
Input Selector Cross Talk
Channel Separation
Output Noise 1
Output Noise 2
BALBB
BALBA
THD
CT
CS
VNO1
VNO2
CHS=”1”,BAL=”11111”
CHS=”0”,BAL=”11111”
Vin = 1Vrms
Vo=0.5Vrms
BW=400Hz to 30kHz
Vin=1Vrms
BW=400Hz to 30kHz
Vin=1Vrms
BW=400Hz to 30kHz
VOL=0dB
BW=400Hz to 30kHz
VOL=Mute
BW=400Hz to 30kHz
-2.0 0.0 2.0
- - -70
- - 0.5
- - -70
- - -70
- -90 -85
- (31.6) (56.2)
-
-106
-96
- (5.0) (15.8)
UNIT
V
mA
V
Vrms
Vrms
dB
dB
dB
dB
dB
dB
dB
dB
%
dB
dB
dBV
(µVrms)
dBV
(µVrms)
-3-
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