AUDIO PROCESSOR. NJW1143A Datasheet

NJW1143A PROCESSOR. Datasheet pdf. Equivalent

NJW1143A Datasheet
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Part NJW1143A
Description AUDIO PROCESSOR
Feature NJW1143A; NJW1143A AUDIO PROCESSOR Q GENERAL DESCRIPTION The NJW1143A is an audio processor which includes v.
Manufacture New Japan Radio
Datasheet
Download NJW1143A Datasheet




New Japan Radio NJW1143A
NJW1143A
AUDIO PROCESSOR
Q GENERAL DESCRIPTION
The NJW1143A is an audio processor which includes volume,
balance, tone control, surround, simulated stereo and AGC
function.
Also the NJW1143A features high precision characteristics
about channel balance, it is less than ±1.0dB at –70dB
attenuation.
All of internal status and variables are controlled by I2C BUS.
Selectable 4-slave address is applicable to multi-speaker system.
It is suitable for any TV set.
Q PACKAGE OUTLINE
NJW1143AV
Q FEATURES
O Operating Voltage
O I2C BUS Interface
8 to 13V
(Fast mode applicable, Selectable 4-Slave address, 3V I/F applicable)
O Low Output Noise
O AGC Circuit (Selectable 4-stage compression level via I2C BUS)
O "eala" (NJRC Surround)
O Simulated Surround
O Bi-CMOS Technology
O Package Outline
SSOP32
Q BLOCK DIAGRAM
AGC
SRFIL
TONE TONE
-Ha -La
OUTa
INa
VOL1
TONE
VOL2
AGC
e ala
&
Sim ulate
Stere o
INb
VOL1
TONE
VOL2
I2C Bus
Interface
Bias
CVO
CBA
CTH
CTL
CSR
AUX0
AUX1
ADR0
ADR1
SCL
SDA
V+
GND
TONE TONE
-Hb -Lb
OUTb Vref
-1-



New Japan Radio NJW1143A
NJW1143A
Q PIN CONFIGURATION
Ach Input 1 IN1a
No Connect 2 NC
Ach Output 3 OUTa
No Connect 4 NC
Ach Treble Filter 5 TONE-Ha
Ach Bass Filter 6 TONE-La
AGC Filter 7
Pop Noise Reduction for Surround
ON/OFF Control
8
AGC
CSR
Pop Noise Reduction for Volume Control 9 CVO
I2C Slave Address Select 0 10 ADR0
I2C Slave Address Select 1 11
SDA Serial Data Input (I2C BUS) 12
ADR1
SDA
No Connect 13 NC
SCL Serial Clock Input (I2C BUS) 14 SCL
No Connect 15 NC
Ground 16 GND
IN1b 32 Bch Input
NC 31 No Connect
OUTb 30 Bch Output
NC 29 No Connect
TONE-Hb 28 Bch Treble Filter
TONE-Lb 27 Bch Bass Filter
SRFIL 26 Surround Filter
CBA 25 Pop Noise Reduction for Balance Control
CTL 24 Pop Noise Reduction for BASS Control
CTH 23 Pop Noise Reduction for Treble Control
AUX1 22 Auxiliary Output 1
AUX0 21 Auxiliary Output 0
NC 20 No Connect
Vref 19 Reference Voltage
NC 186 No Connect
V+ 17 Power Supply
-2-



New Japan Radio NJW1143A
NJW1143A
Q ABSOLUTE MAXIMUM RATING (Ta=25°C)
PARAMETER
SYMBOL
RATING
Supply Voltage
Power Dissipation
Operating Temperature Range
V+
PD
Topr
15
800
NOTE: EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 2layer, FR-4) mounting
-20 to +75
Storage Temperature Range
Tstg
-40 to +125
UNIT
V
mW
°C
°C
Q ELECTRICAL CHARACTERISTICS (Ta=25°C, V+=9V, Rg=600, RL=47k, Vin=100mVrms/1kHz,
AGC=OFF, TONE=0dB, Surround=OFF unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP. MAX.
UNIT
Operating Voltage
V+
8.0 9.0 13.0
V
Supply Current
Reference Voltage
ICC
VREF
No Signal
No Signal
- 13.0 25.0
4.0 4.5 5.0
mA
V
Maximum Input Voltage
Maximum Output Voltage
Channel Balance 1
Channel Balance 2
VIM
VOM
GCB1
GCB2
VOL=-20dB,THD=10%
OUTPUT
VOL=0dB,THD=1%
VOL=0dB
VOL=-70dB, Vin=1Vrms
2.8 3.0 - Vrms
- 2.5 - Vrms
-1.0 0.0 1.0
-1.0 0.0 1.0
dB
dB
Balance Boost A
Balance Cut A
Balance Boost B
Balance Cut B
Total Harmonic Distortion
Maximum Gain
BABST
BACUT
BBBST
BBCUT
THD
GVMAX
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 to 30kHz
VOL= 0dB
-2.0 0.0 2.0
- - -70
-2.0 0.0 2.0
- - -70
- - 0.3
-2.0 0.0 2.0
dB
dB
dB
dB
%
dB
Minimum Gain
Channel Separation
Output Noise 1
Output Noise 2
GVMIN
CS
VNO1
VNO2
VOL= MUTE, Vin=2Vrms
Vin = 1Vrms
A-weighting
VOL = 0dB
A-weighting
VOL = MUTE
A-weighting
-
-100
-90
dB
- -80 -70 dB
- -90 -85 dBV
- (31.6) (56.2) (µVrms)
-
-106
-96
dBV
- (5.0) (15.8) (µVrms)
AUX Output Voltage
VAUX
Logic Output: High
Logic Output: Low
4.5 - 5.5
V
0 - 0.5
BW: Band Width
-3-







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