NJW1168
- 1 -
AUDIO PROCESSOR with Input Selector and Subwoofer Output
■
■■
■ GENERAL DESCRIPTION
The NJW1168 is a sound processor with subwoofer
output includes all of functions processing audio signal for
TV, such as input selector, tone control, balance, volume,
mute, and AGC functions.
Also the NJW1168 includes the LPF for subwoofer output
and bass boost function.
The eala reproduces a natural surround sound with clear
vocal orientation. And also, voice enhancement gives clear
sound such as dialogs.
All of internal status and variables are controlled by I
2
C
BUS interface.
■
■■
■ FEATURES
●
●●
● Operating Voltage 7.5 to 13V
●
●●
● 3ch Output(Lch, Rch, Subwoofer ch) / 2ch Output(Lch, Rch)
●
●●
● 4ch Input Selector
●
●●
● LPF Filter (Adjustable cut off frequency by external parts)
●
●●
● AGC Circuit (It reduces volume difference among input sources.)
Adjustable AGC compression level by I
2
C BUS
●
●●
● eala(NJRC Original Surround System)
●
●●
● Simulated Stereo
●
●●
● Voice Enhancement System
●
●●
● I
2
C BUS Interface
●
●●
● Bi-CMOS Technology
●
●●
● Package Outline QFP48-P1
■
■■
■ BLOCK DIAGRAM
VOL1
VOL1
AGC
Tone
Tone
VOL2
VOL2
LPF
I
2
C Bus
Interface
Bias
eala &
Simulated Stereo
Voice Enhancement
VOL2
Trimmer
LPF
■
■■
■PACKAGE OUTLINE
NJW1168FP1
NJW1168
- 2 -
■
■■
■ PIN FUNCTION
No. SYMBOL FUNCTION No. SYMBOL FUNCTION
1 MONa
A ch Input Selector Monitor Output
25 CVb
Bch Volume switching noise rejection Capacitor
2 N.C.
No Connection
26 N.C.
No Connection
3 CMON
MONa/b switching noise rejection Capacitor
27 OUTb
Bch Output
4 LF1
Low Pass Filter Capacitor 1
28 TONE-Lb
Bch TONE Bass Filter Capacitor
5 OUTw
Sub Woofer Output
29 TONE-Hb
Bch TONE Treble Filter Capacitor
6 VE-FIL3
Voice Enhancement Filter Capacitor 3
30 CSR
eala switching noise rejection Capacitor
7 VE-FIL2
Voice Enhancement Filter Capacitor 2
31 eala-FIL
eala Filter Capacitor
8 VE-FIL1
Voice Enhancement Filter Capacitor 1
32 AGC
AGC Smoothing Filter Capacitor
9 CVE
VE switching noise rejection Capacitor
33 DCC2
Coupling Capacitor 2
10 TONE-Ha
Ach TONE Treble Filter Capacitor
34 DCC1
Coupling Capacitor 1
11 TONE-La
Ach TONE Bass Filter Capacitor
35 LF2
Low Pass Filter Capacitor 2
12 OUTa
Ach Output
36 LF3
Low Pass Filter Capacitor 3
13 N.C.
No Connection
37 N.C.
No Connection
14 CVa
Ach Volume switching noise rejection Capacitor
38 MONb
B ch Input Selector Monitor Output
15 AUX0
Auxiliary Output 0
39 N.C.
No Connection
16 AUX1
Auxiliary Output 1
40 IN4b
B ch Input 4
17 SDA
I
2
C Data Input
41 IN3b
B ch Input 3
18 SCL
I
2
C Clock Input
42 IN2b
B ch Input 2
19 GND
Ground
43 IN1b
B ch Input 1
20 V+
Power Supply
44 IN1a
A ch Input 1
21 VREF
Reference Voltage stabilizing Capacitor
45 IN2a
A ch Input 2
22 CTL
Tone Control Bass switching noise rejection Capacitor
46 IN3a
A ch Input 3
23 CTH
Tone Control Treble switching noise rejection Capacitor
47 IN4a
A ch Input 4
24 CVw
SWch Trimmer switching noise rejection Capacitor
48 N.C.
No Connection
1 14
15
24
2538
39
48
NJW1168
-3-
■
■■
■ ABSOLUTE MAXIMUM RATING (Ta=25°C)
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
■
■■
■ ELECTRICAL CHARACTERISTICS
( Ta=25°C, V+=9V, R
L
=47kΩ, Vin=100mVrms/1kHz unless otherwise specified)
Condition
Input
PARAMETER SYMBOL INa INb Output 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
V
in
- OUTa
- V
in
OUTb
Maximum Input Voltage V
IM
VOL=-20dB,THD=1%
- V
in
OUTb
2.8 3.0 - Vrms
V
in
- OUTa
Maximum
Output Voltage V
OM
VOL=0dB, THD=1% - V
in
OUTb - 2.5 - Vrms
V
in
- OUTa
Monitor Output Gain G
VMON
MON OUT - V
in
OUTb - 2.5 - dB
Channel Balance G
CB
VOL=0dB - - - -1.5 0.0 1.5 dB
Balance Boost A BA
BST
CHS=”0”,BAL=”111111” V
in
V
in
OUTa -2.0 0.0 2.0 dB
Balance Cut A BA
CUT
CHS=”1”, BAL=”111111”
Vin = 1Vrms V
in
V
in
OUTa - - -70 dB
Balance Boost B BB
BST
CHS=”1”,BAL=”111111” V
in
V
in
OUTb -2.0 0.0 2.0 dB
Balance Cut B BB
CUT
CHS=”0”, BAL=”111111”
Vin = 1Vrms V
in
V
in
OUTb - - -70 dB
Trimmer Boost TR
BST
VOL=0dB, f=50Hz
TRIM = +30dB V
in
V
in
OUTw 28.0 30.0 32.0 dB
Trimmer Cut TR
CUT
VOL=0dB, f=50Hz
TRIM = -6dB V
in
V
in
OUTw -11.0 -6.0 -1.0 dB
V
in
- OUTa
Total Harmonic Distortion THD Vo=0.5Vrms,
BW=400Hz to 30kHz - V
in
OUTb - - 0.5 %
V
in
- OUTa
Maximum Gain G
VMAX
VOL=0dB - V
in
OUTb -2.0 0.0 2.0 dB
V
in
- OUTa
Minimum Gain G
VMIN
VOL=MUTE
Vin=1Vrms - V
in
OUTb - - -80 dB
V
in
- OUTa
Cross Talk CT
Vin=1Vrms
BW=400Hz to 30kHz
Selected Input : No signal
Unselected Inputs : Signal - V
in
OUTb
- - -70 dB
V
in
- OUTb
Channel Separation CS Vin=1Vrms
BW=400Hz to 30kHz - V
in
OUTa - -80 -70 dB
Output Noise Voltage 1 V
NO1
VOL=0dB
A-Weighted - - - -
-90
(31.6)
-85
(56.2)
dBV
(µVrms)
Output Noise Voltage 2 V
NO2
VOL=MUTE
A-Weighted - - - -
-106
(5.0)
-96
(15.8)
dBV
(µVrms)
Output Noise Voltage 3 V
NO3
VOL=MUTE,
TRIM=MUTE
A-Weighted
- - - -
-100
(10.0)
-90
(30.0)
dBV
(µVrms)
BW : Band Width
NJW1168
- 4 -
■ ELECTRICAL CHARACTERISTICS
(Ta=25°C, V+=9V, R
L
=47kΩ, Vin=100mVrms/1kHz unless otherwise specified)
Condition
Input
PARAMETER SYMBOL INa INb Output MIN. TYP. MAX. UNIT
♦
♦♦
♦TONE
V
in
- OUTa
High Frequency Boost HF
BST
BCT=”1”
TREB=+15dB, f=10kHz - V
in
OUTb 12.5 15.0 17.5 dB
V
in
- OUTa
High Frequency Flat HF
FLT
TREB=0, f=10kHz - V
in
OUTb -2.0 0.0 2.0 dB
V
in
- OUTa
High Frequency Cut HF
CUT
BCT=”0”
TREB=-15dB, f=10kHz - V
in
OUTb
-17.5 -15.0 -12.5 dB
V
in
- OUTa
Low Frequency Boost LF
BST
BCB=”1”
BASS=+15dB, f=100Hz - V
in
OUTb 12.5 15.0 17.5 dB
V
in
- OUTa
Low Frequency Flat LF
FLT
BASS=0, f=100Hz - V
in
OUTb -2.0 0.0 2.0 dB
V
in
- OUTa
Low Frequency Cut LF
CUT
BCB=”0”
BASS=-15dB, f=100Hz - V
in
OUTb
-17.5 -15.0 -12.5 dB
◆AGC
V
in
V
in
OUTa
AGC Boost1
AGC
BST1
Vin=100mVrms, f=1kHz
AGC=”10010” V
in
V
in
OUTb 1.0 3.0 5.0 dB
V
in
V
in
OUTa
AGC Boost2
AGC
BST2
Vin=100mVrms,f=1kHz
AGC=”10110” V
in
V
in
OUTb 4.0 6.0 8.0 dB
V
in
V
in
OUTa
AGC Flat1
AGC
FLT1
Vin=200mVrms, f=1kHz
AGC=”10000” V
in
V
in
OUTb -2.5 0.0 2.5 dB
V
in
V
in
OUTa
AGC Flat2
AGC
FLT2
Vin=350mVrms, f=1kHz
AGC=”10001” V
in
V
in
OUTb -2.5 0.0 2.5 dB
V
in
V
in
OUTa
AGC Flat3
AGC
FLT3
Vin=500mVrms, f=1kHz
AGC=”10010” V
in
V
in
OUTb -2.5 0.0 2.5 dB
V
in
V
in
OUTa
AGC Flat4
AGC
FLT4
Vin=650mVrms, f=1kHz
AGC=”10011” V
in
V
in
OUTb -2.5 0.0 2.5 dB
V
in
V
in
OUTa
AGC Cut
AGC
CUT
Vin=2Vrms, f=1kHz
AGC=”10000” V
in
V
in
OUTb -14 -10 -6.0 dB
◆SURROUND
V
in
- OUTa
Surround Gain1 SR
GAIN1
f=100Hz, SUR1
Surround Effect1 - V
in
OUTb 6.3 8.3 10.3 dB
V
in
- OUTb
Surround Gain2 SR
GAIN2
f=100Hz, SUR1
Surround Effect1 - V
in
OUTa 2.1 4.1 6.1 dB
V
in
- OUTa
Surround Gain3 SR
GAIN3
f=100 Hz, SUR1
Surround Effect2 - V
in
OUTb 10.7 12.7 14.7 dB
V
in
- OUTb
Surround Gain4 SR
GAIN4
f=100Hz, SUR1
Surround Effect2 - V
in
OUTa 8.4 10.4 12.4 dB
V
in
- OUTa
Surround Gain5 SR
GAIN5
f=100Hz, SUR1
Surround Effect3 - V
in
OUTb 14.0 16.0 18.0 dB
Simulated Stereo1 SR
SIM1
f=1kHz, Simulated Stereo V
in
V
in
OUTa 1.0 3.0 5.0 dB
Simulated Stereo2 SR
SIM2
f=1kHz, Simulated Stereo V
in
V
in
OUTb 1.0 3.0 5.0 dB
NJW1168
-5-
◆ VOICE ENHANCEMENT
Condition
Input
PARAMETER SYMBOL INa INb Output MIN. TYP. MAX. UNIT
V
in
V
in
OUTa
Voice Enhancement
Gain 1 VE
GAIN1
f=5kHz, VE1
Voice Enhancement Effect 1
V
in
V
in
OUTb
3.5 6.0 8.5 dB
V
in
V
in
OUTaVoice Enhancement
Gain 2 VE
GAIN2
f=5kHz, VE2
Voice Enhancement Effect 2
V
in
V
in
OUTb 7.5 10.0 12.5 dB
V
in
V
in
OUTaVoice Enhancement
Gain 3 VE
GAIN3
f=5kHz, VE3
Voice Enhancement Effect 3
V
in
V
in
OUTb 11.5 13.0 15.5 dB
◆ AUX
Logic Output : High 4.5 - 5.5
Logic Output : Mid 2.0 - 3.0
AUX0 Output Voltage V
AUX0
Logic Output : Low
- - -
0 - 0.5
V
Logic Output : High 3.5 - V+
AUX1 Output Voltage V
AUX1
Logic Output : Low - - - 0 - 0.5 V
NJW1168
- 6 -
SDA
SCL
t
f
t
HD:STA
t
LOW
t
r
t
HD:DAT
t
HIGH
t
f
t
SU:DAT
S
t
SU:STA
t
HD:ST A
t
SP
t
SU:STO
Sr
t
r
t
BUF
PS
!TIMIN G ON THE I
2
C BUS (SDA,SCL)
!CHARACTERISTICS OF I/O STAGES FOR I
2
C BUS (SDA,SCL)
I
2
C BUS Load Conditions
STANDARD MODE : Pull up resistance 4kΩ (Connected to +5V), Load capacitance 200pF (Connected to GND)
Standard mode
PARAMETER SYMBOL
MIN. TYP. MAX.
UNIT
Low Level Input Voltage V
IL
0.0 - 1.5 V
High Level Input Voltage V
IH
3.0 - 5.0 V
Low level output voltage (3mA at SDA pin) V
OL
0 - 0.4 V
Input current each I/O pin with an input voltage
between 0.1V
DD
and 0.9V
DDmax
I
i
-10 - 10 µA
NJW1168
-7-
!CHARACTERISTICS OF BUS LINES (SDA,SCL) FOR I
2
C-BUS DEVICES
Standard mode
PARAMETER SYMBOL
MIN. TYP. MAX.
UNIT
SCL clock frequency f
SCL
- - 100 kHz
Hold time (repeated) START condition. t
HD:STA
4.0 - - µs
Low period of the SCL clock t
LOW
4.7 - - µs
High period of the SCL clock t
HIGH
4.0 - - µs
Set-up time for a repeated START condition t
SU:STA
4.7 - - µs
Data hold time
NOTE)
t
HD:DAT
0 - - µs
Data set-up time t
SU:DAT
250 - - ns
Rise time of both SDA and SCL signals t
r
- - 1000 ns
Fall time of both SDA and SCL signals t
f
- - 300 ns
Set-up time for STOP condition t
SU:STO
4.0 - - µs
Bus free time between a STOP and START condition t
BUF
4.7 - - µs
Capacitive load for each bus line C
b
- - 400 pF
Noise margin at the Low level V
nL
0.5 - - V
Noise margin at the High level
V
nH
1 - -
V
C
b
; total capacitance of one bus line in pF.
NOTE). Data hold time : t
HD:DAT
Please hold the Data Hold Time (t
HD:DAT
) to 300ns or more to avoid status of unstable at SCL falling edge.
The SDA block in the NJW1168 does not hold data. Add external data-delay-circuit of the SDA terminal, in case of not
providing a hold time of at least 300nsec for the SDA in the master device.
The time-consists of the data-delay-circuit of the SDA terminal are as follows.
(a) Low level ! High level : T
LH
≈ R
P
*C
D
(b) High level ! Low level : T
HL
≈ R
D
*C
D
In addition, Schottky barrier diode (SBD) influences a Low level at the Acknowledge. Therefore choose the low forward
voltage (Vf) as much as possible.
MA STER
SCL
SDA
V
DD
R
P
R
P
R
D
SBD
C
D
NJW1168
NJW1168
- 8 -
■
■■
■ APPLICATION CIRCUIT
(✳) Separate the I
2
C bus line and Signal line from the following terminals for avoiding digital noise problem and cross talk.
Pin No. Symbol Pin No. Symbol Pin No. Symbol
4 LF1 10 TONE-Ha 31 eala-FIL
6 VE-FIL3 11 TONE-La 35 LF2
7 VE-FIL2 28 TONE-Lb 36 LF3
8 VE-FIL1 29 TONE-Hb
(✳) Cross talk performance may be effected by PCB patterning and Input resistor “Rin” in relation to input impedance.
Widen intervals of input lines (40pin to 47pin) and put guard patterns (ground patterns) among input lines for avoiding
cross talk problem.
Further, cross talk performance may be effected by input resistor “Rin”. The recommended “Rin” value is 20kΩ or less.
In consideration of an actual operating condition, please decide Rin values after evaluating. (The NJW1168 input
impedances are 100kΩtyp.)
C32 4.7µF
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15 16 17 18 19 20 21 22 23 24
38
37
36
35
34
33
32
31
30
29
28
27
26
25
48 47 46 45 44 43 42 41 40 39
NJW1168
NC
MONa
CMON
LF1
OUTw
VE-FIL3
VE-FIL2
VE-FIL1
NC
CVE
DCC2
NC
AGC
eala-FIL
CSR
TONE-Hb
TONE-Lb
OUTb
CVb
NC
A
UX
0
A
UX
1
SD
A
SCL
GND
V
+
NC
INa4
INa3
INa2
INa1
NC
C5 4.7µF
C6 4.7µF
C7 0.033µF
C8 4.7µF
C9 1nF C10 1nF
C11 4.7µF
C25 4.7µF
C26 4.7µF
C29 4.7µF
C30 22nF
C31 0.33µF
+
+
+
+
+
+
+
C20
22µF
TONE-Ha
TONE-La
OUTa
CVa
V
re
f
CTL
CTH
CV
w
LF3
LF2
DCC1
MONb
INb1
INb2
INb3
INb4
+
+
+
++++
C28 2.2nF
C27 100nF
C33 0.047µF
C34 0.022µF
C35 4.7µF
+
C12 2.2nF
C13 100nF
C14 4.7µF
C15 4.7µF
C23
4.7
µF
C24
4.7
µF
C22
4.7
µF
C21
4.7
µF
R16
220Ω
R17
4.7
kΩ
R18
100Ω
R19
220Ω
Rin (*)
Rin (*)
Rin (*)
Rin (*)
Rin (*)
Rin (*)
Rin (*)
Rin (*)
C1
0.47
µF
C2
0.47
µF
C39
0.47
µF
C38
0.47
µF
C37
0.47
µF
C36
0.47
µF
C3
0.47
µF
C4
0.47
µF
NJW1168
-9-
■
TERMINAL DESCRIPTION
PIN NO.
SYMBOL FUNCTION EQUIVALENT CIRCUIT
TERMINAL
VOLTAGE
44
45
46
47
43
42
41
40
INa1
INa2
INa3
INa4
INb1
INb2
INb3
INb4
Ach Input 1
Ach Input 2
Ach Input 3
Ach Input 4
Bch Input 1
Bch Input 2
Bch Input 3
Bch Input 4
V+/2
12
27
5
1
38
34
OUTa
OUTb
Outw
MONa
MONb
DCC1
Ach Output
Bch Output
SWch Output
A ch Input Selector
Monitor Output
B ch Input Selector
Monitor Output
Coupling Capacitor 1
V+/2
31 ealaFIL
eala Filter Capacitor
V+/2
10
29
TONE-Ha
TONE-Hb
Ach TONE Treble
Filter Capacitor
Bch TONE Treble
Filter Capacitor
V+/2
20k
80k
100
FB
8k (eala)
24k(simulated)
FB
18k
FB
NJW1168
- 10 -
PIN NO.
SYMBOL FUNCTION EQUIVALENT CIRCUIT
TERMINAL
VOLTAGE
11
28
TONE-La
TONE-Lb
Ach TONE Bass Filter
Capacitor
Bch TONE Bass Filter
Capacitor
V+/2
32 AGC AGC Smoothing Filter
Capacitor
1.4V
15 AUX0 Auxiliary Output 0
Low ; 0 V
Mid ; 2.5 V
High ; 5V
16 AUX1 Auxiliary Output 1
Low ; 0V
High ;
3.5 V
to V
+
12k
FB
12k
FB
400
400
12k
12k
NJW1168
-11-
PIN NO.
SYMBOL FUNCTION EQUIVALENT CIRCUIT
TERMINAL
VOLTAGE
17
18
SDA
SCL
I
2
C Data Input
I
2
C Clock Input
-
19
20
GND
V+
Ground
Power Supply
- -
21 Vref Reference Voltage
stabilizing Capacitor
V+/2
30
9
CSR
CVE
eala switching noise
rejection Capacitor
VE switching noise
rejection Capacitor
0V
8k
4k
D1
D2
D13
D14
D15
200k
200k
32k
NJW1168
- 12 -
PIN NO.
SYMBOL FUNCTION EQUIVALENT CIRCUIT
TERMINAL
VOLTAGE
23
22
CTH
CTL
Tone Control Treble
switching noise
rejection Capacitor
Tone Control Bass
switching noise
rejection Capacitor
V+/2
14
25
24
CVa
CVb
CVw
Ach Volume
switching noise
rejection Capacitor
Bch Volume
switching noise
rejection Capacitor
SWch Trimmer
switching noise
rejection Capacitor
V+/2
35
36
LF2
LF3
Low Pass Filter
Capacitor 2
Low Pass Filter
Capacitor 3
V
+
/2+0.7V
4 LF1 Low Pass Filter
Capacitor 1
V+/2
36k
8k
4k
24k
NJW1168
-13-
PIN NO.
SYMBOL FUNCTION EQUIVALENT CIRCUIT
TERMINAL
VOLTAGE
3 CMON MONa/b switching
noise rejection
Capacitor
0V, 5V
33 DCC2 Coupling Capacitor 2
V+/2
6 VE-FIL3 Voice Enhancement
Filter Capacitor 3
V+/2
7 VE-FIL2 Voice Enhancement
Filter Capacitor 2
V+/2
36k
14k
FB
48k
NJW1168
- 14 -
PIN NO.
SYMBOL FUNCTION EQUIVALENT CIRCUIT
TERMINAL
VOLTAGE
8 VE-FIL1 Voice Enhancement
Filter Capacitor 1
V+/2
24k
FB
NJW1168
-15-
■
■■
■ LPF Characteristics
The
NJW1168
includes the LPF for subwoofer output and bass boost function. The LPF consists of primary and
secondary LPF and it is enable to adjust “cut off frequency”, “Q” and “Roll off”.
The expression of LPF characteristics is as follows.
<Primary LPF>
1*10*24*2
1
1**2 1
3
1
C
CR
f
c
π
π
==
5.0
1
=Q
<Secondary LPF>
322
109.42
6
2
CC
f
c
∗
∗
=
−
π
2
3
*46.1
2
C
C
Q=
<LPF Frequency Response>
R1
24k
GmAmp2
Buffer2
GmAmp3 Buffer3
LF2
C2
Primary LPF
Secondary LPF
LF3
C3
LF1
C1
-20
-15
-10
-5
0
5
0.1
1
Frequency [kHz]
C1=68nF
C1=47nF
C1=33nF
C1=22nF
C1=15nF
Gain[dB]
C2 = 47nF, C3 = 22nF
C2=100nF
C2=68nF
C2=47nF
C2=33nF
C2=22nF
Gain[dB]
0.1 1
Frequency [kHz]
C1 = 33nF, C3 = 22nF
-20
-15
-10
-5
0
5
Gain[dB]
C3=47nF
C3=10nF
C3=15nF
C3=33nF
C3=22nF
0.1
1
Frequency [kHz]
C1 = 33nF, C2 = 47nF
-20
-15
-10
-5
0
5
NJW1168
- 16 -
■
■■
■ DEFINITION OF I
2
C REGISTER
♦
♦♦
♦I
2
C BUS FORMAT
MSB LSB MSB LSB MSB LSB
S Slave Address A Select Address A Data A P
1bit 8bit 1bit 8bit 1bit 8bit 1bit 1bit
S: Starting Term
A: Acknowledge Bit
P: Ending Term
♦
♦♦
♦SLAVE ADDRE SS
Slave Address Hex
MSB LSB -
1 0 0 0 0 0 0 0 80(h)
♦
♦♦
♦CONTROL REGISTER TABLE
The select address sets each function (Volume, Balance, Trimmer, Bass Boost Select, Tone Control, Surround, AGC,
Voice Enhancement, Input Selector, Monitor Out, AUX).
The auto increment function cycles the select address as follows.
00H→01H→02H→03H→04H→05H→06H→00H
<Write Mode >
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
00H VOL
01H CHS BAL ✴
02H TRIM BBSW
03H BCB BASS ✴
04H BCT TREB ✴
05H SUR AGC
06H VE MOSW AUX1 AUX0 SEL
✴ : Don’t Care
♦
♦♦
♦CONTROL REGISTER DEFAULT VALUE
Control register default value is all “0”.
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
00H 0 0 0 0 0 0 0 0
01H 0 0 0 0 0 0 0 0
02H 0 0 0 0 0 0 0 0
03H 0 0 0 0 0 0 0 0
04H 0 0 0 0 0 0 0 0
05H 0 0 0 0 0 0 0 0
06H 0 0 0 0 0 0 0 0
NJW1168
-17-
!INSTRUCTION CODE
a) MASTER VOLUME SETTING
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
00H VOL
•VOL Attenuation level : 0 to –80dB(0.33dB/step) , MUTE
The attenuator is consisted of both the VOL1(0.165dB/step)and VOL2(0.165dB/step) and is enable to adjust 0.33dB/step.
The attenuation for both the VOL1and VOL2 are always synchronized to have the same attenuation levels for each other,
and are not controllable independently for each other.
ex) VOL(-30dB) = VOL1(-15dB) + VOL2(-15dB)
b) BALANCE SETTING
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
01H CHS BAL
Don’t Care
•CHS : Channel select for balance control
“0” : Ach “Bch is attenuated”
“1” : Bch “Ach is attenuated”
•BAL : Balance control for both Ach and Bch
Balance Level : 0 to –60dB (0.5dB/Step) , MUTE
c) TRIMMER LEVEL AND BASS BOOST FUNCTION SETTING
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
02H TRIM BBSW
•TRIM : Trimmer Level
Trimmer Level : +30 to –6dB (0.5dB/Step) , MUTE
•BBSW : Bass Boost ON/OFF Switch
“0” = Bass Boost OFF
“1” = Bass Boost ON
d) TONE CONTROL BASS SETTING
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
03H BCB BASS
Don’t Care
•BCB : Boost cut select for Bass control
“0” : Cut
“1” : Boost
•BASS : BASS Level Setting
Cut Level : -15 to 0dB(0.5dB/Step)
Boost Level : 0 to +15dB(0.5dB/Step)
e) TONE CONTROL TREBLE SETTING
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
04H BCT TREB
Don’t Care
•BCT : Boost cut select for Treble control
“0” : Cut
“1” : Boost
•TREB : TREBLE Level Setting
Cut Level : -15 to 0dB(0.5dB/Step)
Boost Level : 0 to +15dB(0.5dB/Step)
NJW1168
- 18 -
f) Surround, AGC LEVEL SETTING
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
05H SUR
AGC
<SUR : Surround Level Setting>
Surround Setting D7 D6 D5 Remarks
Bypass 0 0 0 Bypass
Simulated Stereo 0 0 1 Simulated Stereo
eala Effect1 0 1 0 Surround Effect Low(8.3dB typ.)
eala Effect2 0 1 1 Surround Effect Mid(12.7dB typ.)
eala Effect3 1 0 0 Surround Effect High(16dB typ.)
<AGC : AGC Setting>
•
••
•AGC ON/OFF
AGC D4
OFF 0
ON 1
•
••
•AGCBST1 : AGC Boost Start Point
AGCBST1 D3
Low (20mVrms Input) 0
High (100mVrms Input) 1
•
••
•AGCBST2 : AGC Boost Gain
AGCBST2 D2
Low (3dB) 0
High (6dB) 1
•
••
•AGCFLT : AGC Flat Level
AGCFLT D1 D0
200mV 0 0
350mV 0 1
500mV 1 0
650mV 1 1
g) Input Selector, Monitor Out Switch, AUXILIARY SETTING
BIT
Select
Address D7 D6 D5 D4 D3 D2 D1 D0
05H VE MOSW AUX1
AUX0
SEL
<VE : Voice Enhancement Setting>
VE Setting D7 D6 Remarks
By-Pass 0 0 Bypass
VE Effect 1 0 1 Voice Enhancement Effect Low(9dB typ.)
VE Effect 2 1 0 Voice Enhancement Effect Mid(10dB typ.)
VE Effect 3 1 1 Voice Enhancement Effect High(13dB typ.)
<MOSW : Monitor Output Setting>
MOSW Setting D5
Signal Output 0
Mute 1
NJW1168
-19-
<AUX1 : AUX1 Terminal Setting>
Auxiliary Setting D4
Low (0.0V) 0
High (5.0V) 1
<AUX0 : AUX0 Terminal Setting>
Auxiliary Setting D3 D2
Low (0.0V) - 0
Mid (2.5V) 0 1
High (5.0V) 1 1
<SEL : Input Selector Setting>
SEL Setting D1 D0
Input 1 0 0
Input 2 0 1
Input 3 1 0
Input 4 1 1
NJW1168
- 20 -
■
■■
■Master Volume (Select Address : 00H)
VOL
Gain(dB) HEX D7 D6 D5 D4 D3 D2 D1 D0
0 FF 1 1 1 1 1 1 1 1
-1 FC 1 1 1 1 1 1 0 0
-2 F9 1 1 1 1 1 0 0 1
-3 F6 1 1 1 1 0 1 1 0
-4 F3 1 1 1 1 0 0 1 1
-5 F0 1 1 1 1 0 0 0 0
-6 ED 1 1 1 0 1 1 0 1
-7 EA 1 1 1 0 1 0 1 0
-8 E7 1 1 1 0 0 1 1 1
-9 E4 1 1 1 0 0 1 0 0
-10 E1 1 1 1 0 0 0 0 1
-11 DE 1 1 0 1 1 1 1 0
-12 DB 1 1 0 1 1 0 1 1
-13 D8 1 1 0 1 1 0 0 0
-14 D5 1 1 0 1 0 1 0 1
-15 D2 1 1 0 1 0 0 1 0
-16 CF 1 1 0 0 1 1 1 1
-17 CC 1 1 0 0 1 1 0 0
-18 C9 1 1 0 0 1 0 0 1
-19 C6 1 1 0 0 0 1 1 0
-20 C3 1 1 0 0 0 0 1 1
-21 C0 1 1 0 0 0 0 0 0
-22 BD 1 0 1 1 1 1 0 1
-23 BA 1 0 1 1 1 0 1 0
-24 B7 1 0 1 1 0 1 1 1
-25 B4 1 0 1 1 0 1 0 0
-26 B1 1 0 1 1 0 0 0 1
-27 AE 1 0 1 0 1 1 1 0
-28 AB 1 0 1 0 1 0 1 1
-29 A8 1 0 1 0 1 0 0 0
-30 A5 1 0 1 0 0 1 0 1
-31 A2 1 0 1 0 0 0 1 0
-32 9F 1 0 0 1 1 1 1 1
-33 9C 1 0 0 1 1 1 0 0
-34 99 1 0 0 1 1 0 0 1
-35 96 1 0 0 1 0 1 1 0
-36 93 1 0 0 1 0 0 1 1
-37 90 1 0 0 1 0 0 0 0
-38 8D 1 0 0 0 1 1 0 1
-39 8A 1 0 0 0 1 0 1 0
-40 87 1 0 0 0 0 1 1 1
-41 84 1 0 0 0 0 1 0 0
-42 81 1 0 0 0 0 0 0 1
NJW1168
-21-
VOL
Gain(dB) HEX D7 D6 D5 D4 D3 D2 D1 D0
-43 7E 0 1 1 1 1 1 1 0
-44 7B 0 1 1 1 1 0 1 1
-45 78 0 1 1 1 1 0 0 0
-46 75 0 1 1 1 0 1 0 1
-47 72 0 1 1 1 0 0 1 0
-48 6F 0 1 1 0 1 1 1 1
-49 6C 0 1 1 0 1 1 0 0
-50 69 0 1 1 0 1 0 0 1
-51 66 0 1 1 0 0 1 1 0
-52 63 0 1 1 0 0 0 1 1
-53 60 0 1 1 0 0 0 0 0
-54 5D 0 1 0 1 1 1 0 1
-55 5A 0 1 0 1 1 0 1 0
-56 57 0 1 0 1 0 1 1 1
-57 54 0 1 0 1 0 1 0 0
-58 51 0 1 0 1 0 0 0 1
-59 4E 0 1 0 0 1 1 1 0
-60 4B 0 1 0 0 1 0 1 1
-61 48 0 1 0 0 1 0 0 0
-62 45 0 1 0 0 0 1 0 1
-63 42 0 1 0 0 0 0 1 0
-64 3F 0 0 1 1 1 1 1 1
-65 3C 0 0 1 1 1 1 0 0
-66 39 0 0 1 1 1 0 0 1
-67 36 0 0 1 1 0 1 1 0
-68 33 0 0 1 1 0 0 1 1
-69 30 0 0 1 1 0 0 0 0
-70 2D 0 0 1 0 1 1 0 1
-71 2A 0 0 1 0 1 0 1 0
-72 27 0 0 1 0 0 1 1 1
-73 24 0 0 1 0 0 1 0 0
-74 21 0 0 1 0 0 0 0 1
-75 1E 0 0 0 1 1 1 1 0
-76 1B 0 0 0 1 1 0 1 1
-77 18 0 0 0 1 1 0 0 0
-78 15 0 0 0 1 0 1 0 1
-79 12 0 0 0 1 0 0 1 0
-80 0F 0 0 0 0 1 1 1 1
MUTE✴ 00 0 0 0 0 0 0 0 0
✴ : Default Value
NJW1168
- 22 -
■
■■
■Balance Setting (Select Address : 01H)
Channel Setting (CHS) D7
Decrease Bch Gain 0
Decrease Ach Gain 1
BAL
Gain(dB) D6 D5 D4 D3 D2 D1
0✴ 0 0 0 0 0 0
-1 0
0 0 0 0 1
-2 0
0 0 0 1 0
-3 0
0 0 0 1 1
-4 0
0 0 1 0 0
-5 0
0 0 1 0 1
-6 0
0 0 1 1 0
-7 0
0 0 1 1 1
-8 0
0 1 0 0 0
-9 0
0 1 0 0 1
-10 0
0 1 0 1 0
-11 0
0 1 0 1 1
-12 0
0 1 1 0 0
-13 0
0 1 1 0 1
-14 0
0 1 1 1 0
-15 0
0 1 1 1 1
-16 0
1 0 0 0 0
-17 0
1 0 0 0 1
-18 0
1 0 0 1 0
-19 0
1 0 0 1 1
-20 0
1 0 1 0 0
-21 0
1 0 1 0 1
-22 0
1 0 1 1 0
-23 0
1 0 1 1 1
-24 0
1 1 0 0 0
-25 0
1 1 0 0 1
-26 0
1 1 0 1 0
-27 0
1 1 0 1 1
-28 0
1 1 1 0 0
-29 0
1 1 1 0 1
-30 0
1 1 1 1 0
✴ : Default Value
NJW1168
-23-
BAL
Gain(dB) D6 D5 D4 D3 D2 D1
-31 0
1 1 1 1 1
-32 1 0 0 0 0 0
-33 1
0 0 0 0 1
-34 1
0 0 0 1 0
-35 1
0 0 0 1 1
-36 1
0 0 1 0 0
-37 1
0 0 1 0 1
-38 1
0 0 1 1 0
-39 1
0 0 1 1 1
-40 1
0 1 0 0 0
-41 1
0 1 0 0 1
-42 1
0 1 0 1 0
-43 1
0 1 0 1 1
-44 1
0 1 1 0 0
-45 1
0 1 1 0 1
-46 1
0 1 1 1 0
-47 1
0 1 1 1 1
-48 1
1 0 0 0 0
-49 1
1 0 0 0 1
-50 1
1 0 0 1 0
-51 1
1 0 0 1 1
-52 1
1 0 1 0 0
-53 1
1 0 1 0 1
-54 1
1 0 1 1 0
-55 1
1 0 1 1 1
-56 1
1 1 0 0 0
-57 1
1 1 0 0 1
-58 1
1 1 0 1 0
-59 1
1 1 0 1 1
-60 1
1 1 1 0 0
MUTE 1
1 1 1 1 1
NJW1168
- 24 -
■
■■
■Trimmer Setting (Select Address: 02H)
TRIM
Gain(dB) D7 D6 D5 D4 D3 D2 D1
+30.0 1 1 1 1 1 1 1
+29.5 1 1 1 1 1 1 0
+29.0 1 1 1 1 1 0 1
+28.5 1 1 1 1 1 0 0
+28.0 1 1 1 1 0 1 1
+27.5 1 1 1 1 0 1 0
+27.0 1 1 1 1 0 0 1
+26.5 1 1 1 1 0 0 0
+26.0 1 1 1 0 1 1 1
+25.5 1 1 1 0 1 1 0
+25.0 1 1 1 0 1 0 1
+24.5 1 1 1 0 1 0 0
+24.0 1 1 1 0 0 1 1
+23.5 1 1 1 0 0 1 0
+23.0 1 1 1 0 0 0 1
+22.5 1 1 1 0 0 0 0
+22.0 1 1 0 1 1 1 1
+21.5 1 1 0 1 1 1 0
+21.0 1 1 0 1 1 0 1
+20.5 1 1 0 1 1 0 0
+20.0 1 1 0 1 0 1 1
+19.5 1 1 0 1 0 1 0
+19.0 1 1 0 1 0 0 1
+18.5 1 1 0 1 0 0 0
+18.0 1 1 0 0 1 1 1
+17.5 1 1 0 0 1 1 0
+17.0 1 1 0 0 1 0 1
+16.5 1 1 0 0 1 0 0
+16.0 1 1 0 0 0 1 1
+15.5 1 1 0 0 0 1 0
+15.0 1 1 0 0 0 0 1
+14.5 1 1 0 0 0 0 0
+14.0 1 0 1 1 1 1 1
+13.5 1 0 1 1 1 1 0
+13.0 1 0 1 1 1 0 1
+12.5 1 0 1 1 1 0 0
+12.0 1 0 1 1 0 1 1
+11.5 1 0 1 1 0 1 0
+11.0 1 0 1 1 0 0 1
+10.5 1 0 1 1 0 0 0
+10.0 1 0 1 0 1 1 1
+9.5 1 0 1 0 1 1 0
+9.0 1 0 1 0 1 0 1
+8.5 1 0 1 0 1 0 0
+8.0 1 0 1 0 0 1 1
+7.5 1 0 1 0 0 1 0
+7.0 1 0 1 0 0 0 1
+6.5 1 0 1 0 0 0 0
+6.0 1 0 0 1 1 1 1
NJW1168
-25-
TRIM
Gain(dB) D7 D6 D5 D4 D3 D2 D1
+5.5 1 0 0 1 1 1 0
+5.0 1 0 0 1 1 0 1
+4.5 1 0 0 1 1 0 0
+4.0 1 0 0 1 0 1 1
+3.5 1 0 0 1 0 1 0
+3.0 1 0 0 1 0 0 1
+2.5 1 0 0 1 0 0 0
+2.0 1 0 0 0 1 1 1
+1.5 1 0 0 0 1 1 0
+1.0 1 0 0 0 1 0 1
+0.5 1 0 0 0 1 0 0
0.0 1 0 0 0 0 1 1
-0.5 1 0 0 0 0 1 0
-1.0 1 0 0 0 0 0 1
-1.5 1 0 0 0 0 0 0
-2.0 0 1 1 1 1 1 1
-2.5 0 1 1 1 1 1 0
-3.0 0 1 1 1 1 0 1
-3.5 0 1 1 1 1 0 0
-4.0 0 1 1 1 0 1 1
-4.5 0 1 1 1 0 1 0
-5.0 0 1 1 1 0 0 1
-5.5 0 1 1 1 0 0 0
-6.0 0 1 1 0 1 1 1
MUTE✴ 0 0 0 0 0 0 0
✴ : Default value
■
■■
■Bass Boost Setting (Select Address: 02H)
Bass Boost Setting (BBSW) D0
Bass Boost Off✴ 0
Bass Boost On 1
✴ : Default Value
NJW1168
- 26 -
■
■■
■Tone Control(Bass Setting) (Select Address : 03H)
BCB Bass
Cut or Boost D7
Cut 0
Boost 1
BASS
Cut Gain(dB) Boost Gain(dB) D6 D5 D4 D3 D2
-15.0 15.0 1
1
1
1
0
-14.5 14.5 1
1
1
0
1
-14.0 14.0 1
1
1
0 0
-13.5 13.5 1
1
0
1
1
-13.0 13.0 1
1
0
1
0
-12.5 12.5 1
1
0
0
1
-12.0 12.0 1
1
0
0 0
-11.5 11.5 1
0
1
1
1
-11.0 11.0 1
0
1
1
0
-10.5 10.5 1
0
1
0
1
-10.0 10.0 1
0
1
0 0
-9.5 9.5 1
0
0
1
1
-9.0 9.0 1
0
0
1
0
-8.5 8.5 1
0
0
0
1
-8.0 8.0 1
0
0
0 0
-7.5 7.5 0
1
1
1
1
-7.0 7.0 0
1
1
1
0
-6.5 6.5 0
1
1
0
1
-6.0 6.0 0
1
1
0 0
-5.5 5.5 0
1
0
1
1
-5.0 5.0 0
1
0
1
0
-4.5 4.5 0
1
0
0
1
-4.0 4.0 0
1
0
0 0
-3.5 3.5 0
0
1
1
1
-3.0 3.0 0
0
1
1
0
-2.5 2.5 0
0
1
0
1
-2.0 2.0 0
0
1
0 0
-1.5 1.5 0
0
0
1
1
-1.0 1.0 0
0
0
1
0
-0.5 0.5 0
0
0
0
1
0.0✴ 0.0✴ 0 0 0 0 0
✴ : Default value
NJW1168
-27-
■
■■
■Tone Control(Treble Setting) (Select Address : 04H)
BCT Treble
Cut or Boost D7
Cut 0
Boost 1
TREB
Cut Gain(dB) Boost Gain(dB) D6 D5 D4 D3 D2
-15.0 15.0 1
1
1
1
0
-14.5 14.5 1
1
1
0
1
-14.0 14.0 1
1
1
0 0
-13.5 13.5 1
1
0
1
1
-13.0 13.0 1
1
0
1
0
-12.5 12.5 1
1
0
0
1
-12.0 12.0 1
1
0
0 0
-11.5 11.5 1
0
1
1
1
-11.0 11.0 1
0
1
1
0
-10.5 10.5 1
0
1
0
1
-10.0 10.0 1
0
1
0 0
-9.5 9.5 1
0
0
1
1
-9.0 9.0 1
0
0
1
0
-8.5 8.5 1
0
0
0
1
-8.0 8.0 1
0
0
0 0
-7.5 7.5 0
1
1
1
1
-7.0 7.0 0
1
1
1
0
-6.5 6.5 0
1
1
0
1
-6.0 6.0 0
1
1
0 0
-5.5 5.5 0
1
0
1
1
-5.0 5.0 0
1
0
1
0
-4.5 4.5 0
1
0
0
1
-4.0 4.0 0
1
0
0 0
-3.5 3.5 0
0
1
1
1
-3.0 3.0 0
0
1
1
0
-2.5 2.5 0
0
1
0
1
-2.0 2.0 0
0
1
0 0
-1.5 1.5 0
0
0
1
1
-1.0 1.0 0
0
0
1
0
-0.5 0.5 0
0
0
0
1
0.0✴ 0.0✴ 0 0 0 0 0
✴ : Default value
NJW1168
- 28 -
■
■■
■TYPICAL CHARACTERISTICS
0
5
10
15
20
0 5 10 15
f ig.1 Supply Current v s Supp ly Voltage
Rg=600Ω
ΩΩ
Ω,R
L
=47kΩ
ΩΩ
Ω
Icc [mA]
V
+
[V]
Ta = -20
o
C
Ta = 25
o
C
Ta = 75
o
C
0
5
10
15
20
-40-200 20406080100120
fi g.2 Sup ply Current vs Tempera ture
V
+
=9V,Rg=600 Ω
ΩΩ
Ω,R
L
=47kΩ
ΩΩ
Ω
Icc [mA]
Ta [
o
C]
0
2
4
6
8
10
051015
fig.3 Reference Voltage vs Supply Voltage
Rg=600Ω
ΩΩ
Ω,R
L
=47kΩ
ΩΩ
Ω
Vref [V]
V
+
[V]
Ta = -20
o
C, 25
o
C, 75
o
C
4
4.2
4.4
4.6
4.8
5
-40-200 20406080100120
fig.4 Reference Voltage vs Temperature
V
+
=9V,Rg=600 Ω,
Ω,Ω,
Ω,R
L
=47kΩ
ΩΩ
Ω
Vref [V]
Ta [
o
C]
-100
-80
-60
-40
-20
0
0 50 100 150 200 250
fig.5 Voltage Gain vs Volume Control
V
+
=9V, Vin(Ach)=1Vrms, f=1kHz, Rg=600 Ω
ΩΩ
Ω,
Vout(Ach), R
L
=47kΩ
ΩΩ
Ω,BW=400Hz-30kHz
Gv [dB]
Volume Control [dec]
Ta = -20
o
C, +25
o
C, +75
o
C
-100
-80
-60
-40
-20
0
0 20406080100120
fig.6 Voltage Gain vs Balance Control
V
+
=9V , V i n( A+Bch)= 1V rm s , f= 1kHz,
Rg=600Ω
ΩΩ
Ω, R
L
=47kΩ
ΩΩ
Ω, BW =4 0 0Hz-30k Hz
Gv [dB]
Balance Control [dec]
Ta = -20
o
C, 25
o
C, 75
o
C
Ach+Bch in -> Ach out
Ach+Bch in -> Ach out
Ach+Bch in -> Bch out
Ach+Bch in -> Bch out
NJW1168
-29-
0.01
0.1
1
10
100
0.01 0.1 1 10
fig.11 THD+N vs Input Voltage (Wch)
Ta=25
o
C, V
+
=9 V, Vin(A+Bc h), f=50Hz, Rg=600 Ω
ΩΩ
Ω,
Vout(Wch), R
L
=47kΩ
ΩΩ
Ω, BW=10Hz-30kHz, VOL=-20dB
THD+N [%]
Vi [Vrms]
TRIM=+30dB
TRIM=+20dB
TRIM=+10dB
TRIM=+30dB
TRIM=+10dB, +20dB
■
■■
■TYPICAL CHARACTERISTICS
-80
-60
-40
-20
0
20
020406080100120
fig.7 Voltage Gain vs Trimmer Control
V
+
=9V, Vin(A+Bch)=0.05Vrms, f=50Hz,
Rg=600Ω
ΩΩ
Ω, R
L
=47kΩ
ΩΩ
Ω, BW=10Hz-30kHz
Gv [dB]
Trimmer Control [dec]
Ta =-20
o
C, +25
o
C, +75
o
C
0.01
0.1
1
10
100
0.01 0.1 1 10
fig.8 THD+N vs Input Voltage(Ach,Bch)
V
+
=9V, Vin(Ach), f=1kHz, Rg=600 Ω
ΩΩ
Ω,
Vout(Ach), R
L
=47kΩ
ΩΩ
Ω, BW=400Hz-30kHz, VOL=-20dB
THD+N [%]
Vi [Vrms]
Ta=-20
o
C
Ta=25
o
C
Ta=75
o
C
0.01
0.1
1
10
100
0.0 1 0.1 1 10
f ig.9 THD+N vs Input Voltage (Wch)
V
+
=9 V, Vin(A+Bch), f=50Hz, Rg=600 Ω
ΩΩ
Ω, Vout (Wch),
R
L
=47kΩ
ΩΩ
Ω, BW =10H z-3 0 k H z , VO L= -20 dB , TR I M = + 18d B
THD+N [%]
Vi [Vrms]
Ta=-20
o
C
Ta=25
o
C
Ta=75
o
C
0.01
0.1
1
10
100
0.01 0.1 1 10
fig.10 THD+N vs Input Voltage (A ch, Bch)
Ta=25
o
C, V
+
= 9V, Vi n(Ach), f=1 kHz , Rg =60 0 Ω
ΩΩ
Ω,
Vout(Ac h), R
L
=47kΩ
ΩΩ
Ω, BW = 400 Hz- 3 0 kHz
THD+N [%]
Vi [Vrms]
VOL=0dB
VOL=-10dB
VOL=-30dB
VOL=-20dB
VOL=0dB
VOL=-10dB,
-20dB,
-30dB
0.01
0.1
1
10
0.01 0.1 1 10
fig.12 THD+N vs Output Voltage (Ach, Bch)
V
+
=9V, Vin(Ach), f=1kHz, Rg=600 Ω
ΩΩ
Ω,
Vout(Ach), R
L
=47kΩ
ΩΩ
Ω, BW = 400 H z -30 kHz, VO L =0d B
THD+N [%]
Vo [Vrms]
Ta=-20
o
C
Ta=25
o
C
Ta=75
o
C
NJW1168
- 30 -
0
1
2
3
4
5
6
-40 -20 0 20 40 60 80 100 120
fig.15 Maximum Input Voltage vs Temperature
V
+
= 9V, Vin(A ch) f=1k H z, V out(Ach),
Rg=600Ω
ΩΩ
Ω, BW=4 0 0Hz - 3 0k Hz , THD=1%, V O L =-20d B
Vinmax [Vrms]
Ta [oC]
■
■■
■TYPICAL CHARACTERISTICS
0.01
0.1
1
10
100
0.0 1 0.1 1 10
fig.13 THD+N vs OutPut Voltage ( Wch)
V
+
=9 V, Vin(A+Bch), f=50Hz, Rg=600 Ω
ΩΩ
Ω, Vout (Wch),
R
L
=47kΩ
ΩΩ
Ω, BW=10Hz-30kHz, VOL=0dB, TRIM=+18dB
THD+N [%]
Vo [Vrms]
Ta=-20,25,75
o
C
0
1
2
3
4
5
6
051015
fig.14 Maximu m Input Voltage vs Supply Vo ltage
Vin(Ach ) f=1k Hz, Vout(Ach ),
Rg=600Ω
ΩΩ
Ω, BW=400Hz-30kHz, THD=1%, VOL=-20dB
Vinmax [Vrms]
V
+
[V]
Ta = -20
o
C, 25
o
C, 75
o
C
0
1
2
3
4
5
6
0 5 10 15
fig.16 Maximum Output Voltage vs Supply Voltage
Vin(Ach) f=1kHz, Vout(Ach),
Rg=600Ω
ΩΩ
Ω, BW=400Hz-30kHz, THD=1%, VOL=0dB
Vomax [Vrms]
V
+
[V]
Ta = -20
o
C, 25
o
C, 75
o
C
0
1
2
3
4
5
6
-40 -20 0 20 40 60 80 100 12 0
fig.17 Maximum Output Voltage vs Temperature
V
+
=9 V, Vin(Ach) f=1kHz, Vout(Ach),
Rg=600Ω
ΩΩ
Ω, BW = 400Hz-30k Hz, THD= 1%, V O L =0 dB
Vomax [Vrms]
Ta [
o
C]
0.001
0.01
0.1
1
10
0.001 0.01 0.1 1
fig.18 AGC Characteristics (Flat level)
V
+
=9 V, Vin(A+Bch), f=1kHz , Rg=600 Ω
ΩΩ
Ω, Vout(Ach),
R
L
=47kΩ
ΩΩ
Ω, BW=400Hz-30kHz, VOL=0dB,
AGC Bst1=Low, AGC Bst2=+3dB, Ta=25
o
C
Vo [Vrms]
Vi [Vrms]
AGC_off
AGC Flat level=500mV
AGC Flat level=650mV
AGC Flat level=350mV
AGC Flat level=200mV
NJW1168
-31-
0.001
0.01
0.1
1
10
0.001 0.01 0.1 1
fig.19 AGC Ch aracter istics (Bst1)
V
+
=9V, Vin(A+Bch), f=1kHz, Rg=600 Ω
ΩΩ
Ω, Vout(Ach),
R
L
=47kΩ
ΩΩ
Ω, BW= 4 00Hz-30kH z, VOL=0dB,
AGC Flat=5 0 0mV, AGC Bs t2=+ 3 dB, Ta =25
o
C
Vo [Vrms]
Vi [Vrms]
AGC_off
AGC Bst1=Low
AGC Bst1=High
■
■■
■TYPICAL CHARACTERISTICS
0.001
0.01
0.1
1
10
0.001 0.01 0.1 1
fig.20 AGC Charac teristi cs (Bst2)
V
+
=9V, Vin(A+Bch), f =1kHz, Rg= 6 00Ω
ΩΩ
Ω, Vout(Ach),
R
L
=47kΩ
ΩΩ
Ω, BW= 4 00 Hz-30kHz, VOL =0dB, AGC F lat=50 0m V ,
AGC Bst1=Low, Ta=2 5
o
C
Vo [Vrms]
Vi [Vrms]
AGC_off
AGC Bst2=+6dB
AGC Bst2=+3d B
0.001
0.01
0.1
1
10
0.001 0.01 0.1 1
fig.21 AGC Chara cteristics (Ta)
V
+
=9V, Vin(A+Bch), f=1kHz, Rg=600Ω,
Ω, Ω,
Ω, Vout(Ach), R
L
=47kΩ,
Ω,Ω,
Ω,
BW =400Hz-30kHz, VOL=0dB, AGC Flat=500mV, AGC Bst1= Lo w, AGC Bst2= +3d B
Vo [Vrms]
Vi [Vrms]
AGC_off
Ta=-25
o
C, +25
o
C, +75
o
C
-3
-2
-1
0
1
2
3
0246810
fig.22 AGC Characteris tics (A ttack)
V
+
=9V, Vin(A+Bch)=1Vrms, f=10kHz, Rg=600Ω
ΩΩ
Ω, Vout(Ach), R
L
=47kΩ
ΩΩ
Ω,
VOL=0d B, R
EXT
=100kΩ
ΩΩ
Ω, C
EXT
=330nF , AGC le vel=200mV, Ta=25
o
C
Vo [Vrms]
time [msec]
-0.2
-0.15
-0.1
-0.05
0
0.05
0.1
0.15
0.2
0 0.1 0.2 0.3 0.4 0.5
fig.23 AGC Characteristics (Recov ery)
V
+
=9V, Vin(A+Bch)=1Vrms, f=10kHz, Rg=600Ω
ΩΩ
Ω, Vout(Ach), R
L
=47kΩ
ΩΩ
Ω,
VO L=0dB, R
EXT
=100kΩ
ΩΩ
Ω, C
EXT
=330nF , AGC level= 200mV, Ta =2 5
o
C
Vo [Vrms]
time [sec]
0
20
40
60
80
100
0.1 1 10
fig.24 Cros sta lk vs Frequ ency
V
+
=9V, Vin(Ach IN2,IN3,IN4)=1Vrms, SEL=I N1
Vout(Ach), R
L
=47kΩ
ΩΩ
Ω, VOL=0dB
Crosstalk [dB]
Frequency [kHz]
Ta=-20
o
C, +25
o
C
Ta=-20
o
C, +25
o
C, +75
o
C
Ta=+75
o
C
Rg=0Ω
ΩΩ
Ω
Rg=600Ω
ΩΩ
Ω
NJW1168
- 32 -
■
■■
■TYPICAL CHARACTERISTICS
-100
-80
-60
-40
-20
0
0.1 1 10
fig.26 Voltage G ai n vs Frequency ( M UT E)
V
+
=9V, Vin(A+Bch)=1Vrms, Rg=600Ω
ΩΩ
Ω,
Vout(Ach),(Wch), R
L
=47kΩ
ΩΩ
Ω, VOL=MUTE
Gv [dB]
Frequency [kHz]
Ach,
Ta=-20
o
C, +25
o
C, +75
o
C
Wch,
Ta=-20
o
C, +25
o
C, +75
o
C
MONAch, MONSW = MUTE,
Ta=-20
o
C, +25
o
C, +75
o
C
0
20
40
60
80
100
0.1 1 10
fig .25 Channel Separation vs Frequency
V
+
=9V, Vin(Ach)=1Vrms, Rg=600Ω
ΩΩ
Ω,
Vout(Bch), R
L
=47kΩ
ΩΩ
Ω, VOL=0dB
Channel Separation [dB]
Frequency [kHz]
Ain-Bout, Bin-Aout, Ta=-20
o
C, +25
o
C, +75
o
C
-120
-100
-80
-60
-40
-20
0
-40 -20 0 20 40 60 80 100 120
fig.27 Output Noise vs Temperature
V
+
=9V, Rg=600Ω
ΩΩ
Ω, R
L
=47kΩ
ΩΩ
Ω,
Vo=(Ach) ,( Wch),( MON Ach), f ilte r : A- Weighted
Output Noise [dBV]
Ta [
o
C]
Ach, VOL=0dB
Wch, VOL=MUTE, TRIM=+30dB
Ach, VOL=MUTE
Wch, VOL=0dB, TRIM=+30dB
MONAch
-100
-80
-60
-40
-20
0
20
40
0.1 1 10
fig.28 Wch Voltage Gain vs Fre quency (Trimme r)
V
+
=9V, Vin(A+Bch)=0.05Vr ms, Rg=600 Ω
ΩΩ
Ω, Vout(Wch), R
L
=47kΩ
ΩΩ
Ω,
VOL=0dB, C1=33nF, C2=47nF, C3=22nF, Ta=25
o
C
Gv [dB]
Frequency [kHz]
TRIMMER=+30dB
T R I MME R = +2 0 d B
TRIMMER=+10dB
T R I MME R =0 d B
TRIMMER=MUTE
-100
-80
-60
-40
-20
0
20
40
0.1 1 10
fig.29 Wch Voltage Gain vs Frequency (Ta)
V
+
=9V, Vin(A+Bch)=0.05Vrms, Rg=600 Ω
ΩΩ
Ω, Vout(Wch), R
L
=47kΩ
ΩΩ
Ω,
VOL=0dB, TRIM=+30dB, C1=33nF, C2=47nF, C3=22nF
Gv [dB]
Frequency [kHz]
Ta=-20
o
C, +25
o
C, +75
o
C
-20
-15
-10
-5
0
5
0.1 1
fig.30 LPF Characteristics (C1)
V
+
=9V, Vin(A+Bch)=0.1Vrms, Rg= 600 Ω
ΩΩ
Ω, Vout(Wch), R
L
=47kΩ
ΩΩ
Ω,
VOL=0dB, TRI M=0 dB, C 2= 47nF, C 3= 22nF, Ta=25
o
C
Gv [dB]
Frequency [kHz]
C1= 15nF
C1=22nF
C1= 33nF
C1= 47nF
C1= 68nF
NJW1168
-33-
■
■■
■TYPICAL CHARACTERISTICS
-20
-15
-10
-5
0
5
0.1 1
fig.31 LPF Chara cteristics (C2)
V
+
=9V, V i n(A+Bch)=0. 1 Vrms, Rg=600 Ω
ΩΩ
Ω, Vout(Wch), R
L
=47kΩ
ΩΩ
Ω,
VOL=0dB, TRIM=0dB, C1=33nF, C3=22nF, Ta=25
o
C
Gv [dB]
Frequency [kHz]
C2= 100nF
C2=68nF
C2=47nF
C2=33nF
C2=22nF
-20
-15
-10
-5
0
5
0.1 1
fig.32 LPF Characteristcs (C3)
V
+
=9V, V i n(A+Bch)=0. 1 Vrms, Rg=60 0 Ω
ΩΩ
Ω, Vout(Wch), R
L
=47kΩ
ΩΩ
Ω,
VOL=0dB, TRIM=0dB, C1=33nF, C2=47nF, Ta=25
o
C
Gv [dB]
Frequency [kHz]
C3=47nF
C3= 10nF
C3=15nF
C3= 33nF
C3= 22nF
-20
-15
-10
-5
0
5
10
15
20
0.1 1 10
f ig.33 Voltage Gain vs Frequency ( Tone)
V
+
= 9V, Vin(A)=0.1Vrms, Rg=600Ω
ΩΩ
Ω, Vo ut (Ach),
R
L
=47kΩ
ΩΩ
Ω, VOL=0dB, Ta=25
o
C
Gv [dB]
Frequency [kHz]
BASS=TREB=+15dB
BASS=TREB=+12dB
BASS=TREB=+9dB
BASS=TREB=+6dB
BASS=TREB=+3dB
BASS=TREB=0dB
BASS=TREB=-3dB
BA SS=TRE B=-6dB
BASS=TRE B=-9dB
BASS=TRE B=-1 2dB
BA SS=TRE B=-1 5dB
-20
-15
-10
-5
0
5
10
15
20
0.1 1 10
f ig.34 Vo l tage Gain vs Fr eq uency (T one)
V
+
=9V, Vin(A)= 0 .1Vrms , Rg=600Ω
ΩΩ
Ω, Vout(Ach),
R
L
=47kΩ
ΩΩ
Ω, VOL=0dB
Gv [dB]
Frequency [kHz]
BASS=TREB=-15dB
BASS=TREB=+15dB
Ta=-20
o
C
Ta=+75
o
C
BASS=TREB=0dB
Ta=+25
o
C
Ta=-20
o
C, +25
o
C, +75
o
C
-30
-20
-10
0
10
20
0.1 1 10
fig.35 Voltage Gain vs Frequency (eala effect1)
V
+
=9V , Vin=0. 1Vrms, Rg=600 Ω
ΩΩ
Ω,
R
L
=47kΩ
ΩΩ
Ω, VOL=0dB
Gv [dB]
Frequency [kHz]
Ta=-20
o
C, +25
o
C, +75
o
C
Ta=-20
o
C, +25
o
C, +75
o
C
Vin(Ach) -> Vout(Ach)
Vin(Ach) -> Vout(Bch)
-30
-20
-10
0
10
20
0.1 1 10
fig.36 Voltage Gain vs Freq uency (eala effect2)
V
+
=9 V , Vin=0. 1Vrms , Rg=600Ω
ΩΩ
Ω,
R
L
=47kΩ
ΩΩ
Ω, VOL=0dB
Gv [dB]
Frequency [kHz]
Ta=-20
o
C, +25
o
C, +75
o
C
Vin(Ach) -> Vout(Ach)
Vin( Ac h) - > Vout(Bch)
Ta=-20
o
C, +25
o
C, +75
o
C
NJW1168
- 34 -
■
■■
■TYPICAL CHARACTERISTICS
-30
-20
-10
0
10
20
0.1 1 10
fig.3 7 Voltage Gain vs Frequency (eala effect3 )
V
+
=9V, Vin=0.1Vrms , Rg =600Ω
ΩΩ
Ω,
R
L
=47kΩ
ΩΩ
Ω, VOL=0dB
Gv [dB]
Frequency [kHz]
Vin(Ach) ->Vout(Ach)
Vin(Ach) -> Vout(Bch)
Ta=-20
o
C, +25
o
C, +75
o
C
Ta=-20
o
C, +25
o
C, +75
o
C
-30
-20
-10
0
10
20
0.1 1 10
fig.38 Voltage Gain vs Frequenc y
(Simulated Stereo)
V+=9V, Vin=0.1Vrm s, Rg=600Ω
ΩΩ
Ω,
RL=47kΩ
ΩΩ
Ω, VOL=0dB
Gv [dB]
Frequency [kHz]
Vin(A+Bch) -> Vout(Ach)
Vin(A+Bch) -> Vout(Bch)
Ta=-20
o
C, +25
o
C, +75
o
C
Ta=-20
o
C, +25
o
C, +75
o
C
-100
-50
0
50
100
150
200
0.1 1 10
fig.39 Phase vs Frequency
(Simulated Stereo)
V
+
=9 V , Vin=0.1Vr ms, Rg = 600Ω
ΩΩ
Ω,
R
L
=47kΩ
ΩΩ
Ω, VOL=0dB
Phase [deg]
Frequency [kHz]
Vin(A+Bch) -> Vout(Ach)
Vin(A+Bch) -> Vout(Bch)
Ta=-20
o
C, +25
o
C, +75
o
C
Ta=-20
o
C, +25
o
C, +75
o
C
-20
-15
-10
-5
0
5
10
15
20
0.1 1 10
fig.40 Voltage Gain vs Frequenc y
(Voice Enhancement)
V
+
=9V, V in(A+B)=0.1Vrms, Vout(Ach), Rg =600Ω
ΩΩ
Ω,
R
L
=47kΩ
ΩΩ
Ω, VOL=0dB, Ta=25
o
C
Gv [dB]
Frequency [kHz]
VE effect 3
VE effect 2
VE effect 1
Bypass
-20
-15
-10
-5
0
5
10
15
20
0.1 1 10
fig.41 Voltage Gain vs Frequency
(Voice Enhancement)
V
+
=9V, Vin(A+B)=0.1Vrms, Vout(Ach), Rg=600Ω
ΩΩ
Ω,
R
L
=47kΩ
ΩΩ
Ω, VOL=0dB, VE effect 3
Gv [dB]
Frequency [kHz]
Bypass
Ta=-20
o
C, +25
o
C, +75
o
C
NJW1168
-35-
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.
