NJW1165
- 1 -
AUDIO PROCESSOR
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GENERAL DESCRIPTION
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PACKAGE OUTLINE
The
NJW1165
is an audio processor. It includes all of
functions processing audio signal for TV, such as tone
control, balance, volume, mute, NJRC original surround, and
AGC functions.
The NJRC original surround system reproduces natural
surround sound and clear vocal orientation.
All of internal status and variables are controlled by I
2
C
BUS interface.
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FEATURES
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Operating Voltage 7.5 to 13V
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I
2
C BUS Interface
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eala (NJRC Original Surround)
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AGC Circuit (It reduces volume difference among input sources.)
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Simulated Surround
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Bi-CMOS Technology
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Package Outline
SDIP30, SDMP30
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BLOCK DIAGRAM
VOL1
VOL1
eala
&
Sim ulated
Surround
Bias
VOL2
TONE
TONE
AGC
VOL2
I
2
C Bus
Interface
NJW1165M
NJW1165L
NJW1165
- 2 -
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PIN FUNCTION
No. Symbol
Function
No
Symbol
Function
1
IN1a
Ach Input
16
Vcc
Power Supply Pin
2
NC
Non Connect
17
AUX1
Auxiliary Output1
3
NC
Non Connect
18
AUX0
Auxiliary Output0
4
OUT1a
Ach Output for the Other Accessories
19
CTL
Pop Noise reduction for Bass Control
5
IN2a
Ach Input From the Other Accessories
20
CTH
Pop Noise reduction for Treble Control
6
TONE-Ha
Ach Treble Filter
21
VREF
Reference Voltage
7
TONE-La
Ach Bass Filter
22
SR-FIL
NJRC Original Surround Filter
8
OUT2a
Ach Output
23
OUT2b
Bch Output
9
AGC
AGC Filter
24
TONE-Lb
Bch Bass Filter
10
SS-FIL
Simulated Stereo Filter
25
TONE-Hb
Bch Treble Filter
11
CVB
Pop Noise Reduction for Volume & Balance
26
IN2b
Bch Input from the Other Accessories
12
CVA
Pop Noise Reduction for Volume & Balance
27
OUT1b
Bch Output for the Other Accessories
13
SDA
SDA Data Input (I
2
C BUS)
28
NC
Non Connect
14
SCL
SCL Data Input (I
2
C BUS)
29
NC
Non Connect
15 GND
GND
30
IN1b
Bch
Input
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
30
29
28
27
26
INa
NC
NC
TONE-Ha
TONE-La
OUT1a
IN2a
OUT2a
AGC
SS-FIL
CVB
CVA
SDA
SCL
GND
INb
NC
NC
TONE-Hb
TONE-Lb
IN2b
OUT2b
SR-FIL
VREF
CTH
25
24
23
22
21
CTL
AUX0
AUX1
Vcc
20
19
18
17
16
OUT1b
NJW1165
- 3 -
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ABSOLUTE MAXIMUM RATING
(Ta=25C)
PARAMETER SYMBOL
RATING
UNIT
Supply Voltage
V
+
15 V
Power Dissipation
P
D
700
mW
Operating Temperature Range
Topr
-20 to +75
C
Storage Temperature Range
Tstg
-40 to +125
C
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ELECTRICAL CHARACTERISTICS
(Ta=25C, V+=9V, Rg=600
, R
L
=47k
, Vin=100mVrms/1kHz unless otherwise specified)
PARAMETER SYMBOL
TEST
CONDITION
MIN.
TYP.
MAX.
UNIT
Operating Voltage
V
+
7.5
9.0
13.0
V
Supply Current
I
CC
No
Signal
- 13 25 mA
Reference Voltage
V
REF
No
Signal
4.0 4.5 5.0
V
Maximum Input Voltage
V
IM
VOL=-20dB,THD=1%
2.8 3.0 - Vrms
Maximum Output Voltage
V
OM
OUTPUT
VOL=0dB,THD=1%
- 2.5 - Vrms
Channel Balance1
G
CB
VOL=0dB
-1.5 0.0 1.5 dB
Balance Boost A
BA
BST
CHS="0",
BAL="11111"
-2.0 0.0 2.0
dB
Balance Cut A
BA
CUT
CHS="1", BAL="11111"
Vin = 1Vrms
- - -70
dB
Balance Boost B
BB
BST
CHS="1",
BAL="11111"
-2.0 0.0 2.0
dB
Balance Cut B
BB
CUT
CHS="0", BAL="11111"
Vin = 1Vrms
- - -70
dB
Total Harmonic Distortion
THD
Vo=0.5Vrms
BW=400Hz to 30kHz
- - 0.5 %
Maximum Gain
G
VMAX
VOL=
0dB
-2.0 0.0 2.0
dB
Minimum Gain
G
VMIN
VOL=
MUTE
-
-
-70
dB
Channel Separation
CS
Vin = 2Vrms
Ain
Bout, Bin
Aout
- - -70
dB
Output Noise 1
V
NO1
VOL = 0dB
BW=400Hz to 30kHz
-
-
-90
(31.6)
-85
(56.2)
dBV
(
Vrms)
Output Noise 2
V
NO2
VOL = MUTE
BW = 400Hz to 30kHz
-
-
-106
(5.0)
-96
(15.8)
dBV
(
Vrms)
Logic Output: High
4.5
-
5.0
AUX Output Voltage
V
AUX
Logic Output: Low
0
-
0.3
V
BW: Band Width
NJW1165
- 4 -
TONE CONTROL
PARAMETER SYMBOL
TEST
CONDITION
MIN.
TYP.
MAX.
UNIT
High Frequency Boost
HF
BST
BCT="1", TREB="1111",
f=10kHz
12.5 15.0 17.5 dB
High Frequency Flat
HF
FLT
TRBE="0000",
f=10kHz
-2.0 0.0 2.0
dB
High Frequency Cut
HF
CUT
BCT="0", TRBE="1111",
f=10kHz
-17.5 -15.0 -12.5 dB
Low Frequency Boost
LF
BST
BCB="1", BASS="1111",
f=100Hz
12.5 15.0 17.5 dB
Low Frequency Flat
LF
FLT
BASS="0000",
f=100Hz
-2.0 0.0 2.0
dB
Low Frequency Cut
LF
CUT
BCB="0", BASS="1111",
f=100Hz
-17.5 -15.0 -12.5 dB
SUB-TONE CONTROL
PARAMETER SYMBOL
TEST
CONDITION
MIN.
TYP.
MAX.
UNIT
High Frequency Boost
SHF
BST
BCST="1",
SUB-TREB="11", f=10kHz
2.0 3.0 4.0 dB
High Frequency Cut
SHF
CUT
BCST="0",
SUB-TREB="11", f=10kHz
-4.0 -3.0 -2.0 dB
Low Frequency Boost
SLF
BST
BCSB="1",
SUB-BASS="11", f=100Hz
2.0 3.0 4.0 dB
Low Frequency Cut
SLF
CUT
BCSB="0",
SUB-BASS="11", f=100Hz
-4.0 -3.0 -2.0 dB
AGC CONTROL
PARAMETER SYMBOL
TEST
CONDITION
MIN.
TYP.
MAX.
UNIT
AGC Boost
AGC
BST
Vin=50mVrms,
f=1kHz
1.5
3.5
5.5
dB
AGC Flat1
AGC
FLT1
Vin=150mVrms,
f=1kHz
-2.5
0.0
2.5
dB
AGC Flat2
AGC
FLT2
Vin=300mVrms,
f=1kHz
-2.5
0.0
2.5
dB
AGC Flat3
AGC
FLT3
Vin=400mVrms,
f=1kHz
-2.5
0.0
2.5
dB
AGC Flat4
AGC
FLT4
Vin=540mVrms,
f=1kHz
-2.5
0.0
2.5
dB
AGC Cut
AGC
CUT
Vin=2Vrms,
f=1kHz
-14
-10
-6.0
dB
SURROUND (SURROUND-ON)
PARAMETER SYMBOL
TEST
CONDITION
MIN.
TYP.
MAX.
UNIT
Surround Gain1
SR
GAIN1
Ain
Aout, f=100Hz
SUR0="0", SUR="1"
6.0 8.0 10.0 dB
Surround Gain2
SR
GAIN2
Ain
Bout, f=100Hz
SUR0="0", SUR="1"
1.6 3.6 5.6 dB
Surround Gain3
SR
GAIN3
Ain
Aout, f=100Hz
SUR0="1", SUR="1"
10.7 12.7 14.7 dB
Surround Gain4
SR
GAIN 4
Ain
Bout, f=100Hz
SUR0="1", SUR="1"
8.4 10.4 12.4 dB
Simulated Surround Gain1
SR
SIM1
Ain+Bin
Aout, f=1kHz
SUR0="1", SUR="0"
1.0 3.0 5.0 dB
Simulated Surround Gain2
SR
SIM2
Ain+Bin
Bout, f=1kHz
SUR0="1", SUR="0"
1.0 3.0 5.0 dB
NJW1165
- 5 -
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2
C BUS BLOCK CHARACTERISTICS (SDA, SCL)
PARAMETER SYMBOL
MIN.
TYP.
MAX.
UNIT
High Level Input Voltage
V
IH
2.5 - 5.0 V
Low Level Input Voltage
V
IL
0 - 1.5 V
High Level Input Current
I
IH
- - 10
A
Low Level Input Current
I
IL
- - 10
A
Low Level Output Voltage (3mA at SDA pin)
V
OL
0 - 0.4 V
Maximum Output Current
I
OL
-3.0 - - mA
Maximum Clock Frequency
f
SCL
- - 100
kHz
Data Change Minimum Waiting Time
t
BUF
4.7 -
- s
Data Transfer Start Minimum Waiting Time
t
HD:STA
4.0
-
-
s
Low Level Clock Pulse Width
t
LOW
4.7 -
- s
High Level Clock Pulse Width
t
HIGH
4.0 -
- s
Minimum Start Preparation Waiting Time
t
SU:STA
4.7 -
- s
Minimum Data Hold Time
t
HD:DAT
0
- 3.45 s
Minimum Data Preparation Time
t
SU:DAT
250
-
-
ns
Rise Time
t
R
- - 1.0
s
Fall Time
t
F
- - 300
ns
Minimum Stop Preparation Waiting Time
t
SU:STO
4.0
-
-
s
I
2
C BUS Load Condition:
Pull up resistance 4k
(Connected to +5V)
Load capacitance 200pF (Connected to GND)
SDA
SCL
t
BUF
t
HD:STA
Sr
P
t
LOW
t
R
t
HD:DAT
t
HIGH
t
F
t
SU:DAT
S
P
t
SU:STA
t
SU:STO
t
HD:STA
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