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NJW1181 PDF даташит

Спецификация NJW1181 изготовлена ​​​​«JRC» и имеет функцию, называемую «Audio Processor».

Детали детали

Номер произв NJW1181
Описание Audio Processor
Производители JRC
логотип JRC логотип 

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NJW1181 Даташит, Описание, Даташиты
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NJW1181
AUDIO PROCESSOR with BBE & Dynamic Bass Boost
s GENERAL DESCRIPTION
The NJW1181 is a TV audio processor with BBE Sound
Enhancement and Dynamic Bass Boost.
The NJW1181 contains all necessary functions to process
TV audio signal such as volume control, tone control,
balance, mute and AGC function.
All of internal status and variables are controlled by I2C
BUS.
s PACKAGE OUTLINE
NJW1181FP1
s FEATURES
q Operating Voltage
q I2C BUS Interface
7.5 to 13V
q BBE Sound Enhancement
(Low Boost and High Boost: 15dB max.)
q eala(NJRC Surround)/Simulated Stereo
q Dynamic Bass Boost Function
q AGC Circuit
(Selectable 4-stage compression level by I2C BUS)
q Bi-CMOS Technology
q Package Outline
QFP48-P1
s BLOCK DIAGRAM
TONE TONE BBE BBE
SURFIL1 -Lb -Hb -Lb -Hb
HBSTb
BB2 BB4 BB-
BB1 BB3 FIXOUT OUT1b OUT2b
ADDIN1
SDA SCL AUX
VOL1
INb /
AGC
TONE
BBE
High
Boost
VOL2
AGC
Control
SUR
Bass Boost
VOL1
INa /
AGC
TONE
BBE
High
Boost
VOL2
VOL3
I2CBus
Interface
VOL4
Bias
CVa
CVb
CTL
CTH
CBH
CSR
CBB
CA1
CA2
CO1
CO2
AGCINT
SURFIL2 TONE TONE BBE BBE
-La -Ha -La -Ha
HBSTa
BB BB BB
-AGCINT -SENSE -AGCOUT
OUT1a OUT2a ADDIN2
GND V+ VREF
-1-









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NJW1181 Даташит, Описание, Даташиты
NJW1181
www.DataSheet4U.com
s PIN FUNCTION (QFP48-P1)
38
39
25
24
48
1
15
14
No Symbol
Function
No Symbol
Function
1
BBELa
Ach BBE Filter (Lo Contour)
25
CBH
Pop Noise Reduction for BBE ON/OFF
2 NC No Connect
3
HBSTa
Ach High Frequency Compensation Filter
26
CA2
Pop Noise Reduction for ADDIN2 Setting
27
CTH
Pop Noise reduction for Treble Control
4 BB3 Filter for Bass Boost 3
28 CTL Pop Noise reduction for Bass Control
5 BB4 Filter for Bass Boost 4
29 ADDIN2 Mixing Input 2
6 BB FIXOUT Fixed Gain Bass Boost Output
30
OUT2b
Bch Output 2
7 BB AGCINT AGC Smoothing Filter for Bass Boost
31
OUT1b
Bch Output 1
8
OUT1a
Ach Output 1
32 BB SENSE AGC Boost Level Setting for Bass Boost
9
OUT2a
Ach Output 2
33 BB AGCOUT Dynamic Bass Boost Output
10 ADDIN1 Mixing Input 1
34 BB2 Filter for Bass Boost 2
11
CSR
Pop Noise Reduction for Surround ON/OFF
35
12
CBB
Pop Noise Reduction for Bass Boost ON/OFF 36
13 AGC INT AGC Filter
37
BB1
HBSTb
NC
Filter for Bass Boost 1
Bch High Frequency Compensation Filter
No Connect
14 CVa Pop Noise Reduction for Volume Control
38
BBELb
Bch BBE Filter (Lo Contour)
15
CVb
Pop Noise Reduction for Balance Control
39
BBEHb
Bch BBE Filter (Process)
16
CA1
Pop Noise Reduction for ADDIN1 Setting
17
SDA
SDA Data Input (I2C BUS)
18
SCL
SCL Data Input (I2C BUS)
40 TONE-Lb Bch Bass Filter
41 TONE-Hb Bch Treble Filter
42 SURFIL2 Surround Filter 2
19
GND
Ground
43 INb Bch Input
20 V+ Power Supply
44 INa Ach Input
21
AUX
Auxiliary Output
45 SURFIL1 Surround Filter 1
22
VREF
Reference Voltage
46 TONE-Ha Ach Treble Filter
23
CO1
Pop Noise Reduction for Output SW1 ON/OFF 47
TONE-La Ach Bass Filter
24
CO2
Pop Noise Reduction for Output SW2 ON/OFF 48
BBEHa
Ach BBE Filter (Process)
-2-









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NJW1181 Даташит, Описание, Даташиты
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NJW1181
s ABSOLUTE MAXIMUM RATING (Ta=25°C)
PARAMETER
Supply Voltage
SYMBOL
V+
RATING
15
Power Dissipation
PD
1500(note)
Operating Temperature Range
Topr
-20 to +75
Storage Temperature Range
Tstg
-40 to +125
(Note) At on a board of EIA/JEDEC specification. (76.2 × 114.3 × 1.6mm Two layers, FR-4)
UNIT
V
mW
°C
°C
s ELECTRICAL CHARACTERISTICS (Ta=25°C, V+=9V, Rg=600, RL=47k, Vin=100mVrms/1kHz,
MODE; VOL/BAL/TONE=0dB, AGC/BBE/Surround/Bass Boost=OFF, ADDIN1/ADDIN2=MUTE unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITION
MIN. TYP. MAX. UNIT
Operating Voltage
V+
-
7.5 9.0 13.0
V
Supply Current
Reference Voltage
ICC
VREF
No Signal
No Signal
- 15 25
4.0 4.5 5.0
mA
V
Maximum Input Voltage
Maximum Output Voltage
Channel Balance
VIM VOL=-20dB,THD=10%
OUTPUT
VOM VOL=0dB,THD=1%
GCB VOL=0dB
2.8 3.0 - Vrms
- 2.5 - Vrms
-1.0 0.0
1.0
dB
Balance Boost A
Balance Cut A
Balance Boost B
Balance Cut B
Total Harmonic Distortion
Maximum Gain
Minimum Gain
Channel Separation
Output Noise 1
Output Noise 2
AUX Output Voltage
BABST
BACUT
BBBST
BBCUT
THD
GVMAX
GVMIN
CS
VNO1
VNO2
VAUX
CHS=”0”, BAL=”11111”
CHS=”1”, BAL=”11111”
Vin=1Vrms
CHS=”1”, BAL=”11111”
CHS=”0”, BAL=”11111”
Vin=1Vrms
Vo=0.5Vrms
BW=400Hz ~ 30kHz
VOL=0dB
VOL=MUTE, Vin=2Vrms
Vin=1Vrms, A-weighted
VOL = 0dB
A-weighted
VOL=MUTE
A-weighted
Logic Output: High,
RL=10kPull Down
Logic Output: Low,
RL=10kpull Up
-2.0 0.0
2.0
- - -70
-2.0 0.0
2.0
- - -70
dB
dB
dB
dB
-
- 0.3
%
-2.0 0.0
2.0
dB
- -100 -90
dB
- - -70 dB
-
-90 -85
dBV
- (31.6) (56.2) (µVrms)
- -100 -95 dBV
- (10) (17.8) (µVrms)
4.5 - 5.5
0 0.5
V
BW: Band Width
-3-










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