NJW1221FH2 [NJRC]
Equalizer Circuit, PQFP64, QFP-64;
| 型号： | NJW1221FH2 |
| 厂家： | 
NEW JAPAN RADIO |
| 描述： | Equalizer Circuit, PQFP64, QFP-64 商用集成电路 |
| 文件： | 总22页 (文件大小：200K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NJW1221
4.1-channel Electronic Volume with 5 Bands Parametric Equalizer
GENERAL DESCRIPTION
PACKAGE OUTLINE
The NJW1221 is a 4.1-channel electronic volume with input
selector. It includes master volume, fader volume, 5 band
parametric equalizer, 7-input stereo audio selector, loudness, and
sub-woofer function. The NJW1221 performs low noise and low
distortion characteristics with resistance ladder circuit.
All of functions are controlled by I2C BUS interface.
FEATURES
NJW1221FH2
Operating Voltage
I2C BUS Control
Low output noise
Low THD
+7.5 to +10V
-103dBVtyp.
0.01%typ.
7-Input Selector
Input Gain
0 to +15dB/1dBstep
Main Volume
+23.5 to -79.5dB / 0.5dBstep, MUTE
+15.5 to -79.5dB / 0.5dBstep, MUTE
0 to ±15dB/1dBstep
Headphone Volume
Graphic Equalizer
Fader Volume
0 to -79dB/1dBstep,MUTE
Sub-Woofer Output
Bi-CMOS Technology
Package Outline
+15 to -79dB/1dBstep,MUTE
QFP64
BLOCK DIAGRAM
39k
0.1uF 0.1uF
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
1uF
49
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
IN4R
GND
OSC
2kHz
Bias
1uF
50
IN3R
INHPR
1uF
1uF
HPVR
1uF
51
+10 to -79dB/Mute
(0.5dB step)
IN2R
BEEP V R
0 to -60dB/Mute
2dB step
1uF
52
IN1R
OUTHPR
OUTFR
FADER VR
0 to -79dB/Mute
(1dB step)
MAIN VOLUME
w ith
53
OUTR
Input Gain
0 to 15 dB
(1dB step)
5 bands PEQ
-15 to 15dB
(1dB step)
LOUDNESS
+20 to -79
dB/Mute
HPF
FADER VR
0 to -79dB/Mute
(1dB step)
54
-INR
OUTRR
(0.5dB step)
55
+INR
OUTSWR
Simmilaar
typeas
MAIN VOLUME
for Sub-
NJM4580
56
7 ch INPUT
SELECTOR
(2ch are
Sub-W VR
10 to -79dB
/ Mute
GND
GND
GND
VREF
Woofer
LPF
+20 to -79
dB/Mute
(2nd/4th order)
VREF
diff/sw itchable)
(1dB step)
-1
57
GND
(0.5dB step)
Simmilaar
typeas
NJM4580
58
+INL
OUTSWL
OUTRL
FADER VR
0 to -79dB/Mute
(1dB step)
MAIN VOLUME
w ith
59
-INL
Input Gain
0 to 15 dB
(1dB step)
5 bands PEQ
-15 to 15dB
(1dB step)
LOUDNESS
+20 to -79
dB/Mute
HPF
FADER VR
0 to -79dB/Mute
(1dB step)
60
OUTL
OUTFL
(0.5dB step)
1uF
61
IN1L
OUTHPL
HPVR
1uF
62
+10 to -79dB/Mute
(0.5dB step)
IN2L
1uF
1uF
63
IN3L
INHPL
1uF
7 bands
spectrum
analyzer
1uF
I2C
64
IN4L
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
0.1uF 0.1uF
39k
10uF
Ver.2.0E
– 1 –
NJW1221
ABSOLUTE MAXIMUM RATING (Ta=25C)
PARAMETER
Power Supply Voltage
SYMBOL
V+
RATING
UNIT
V
10.5
1900
Power Dissipation
PD
mW
NOTE: EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 2layer, FR-4) mounting
Operating Temperature Range
Storage Temperature Range
Topr
-40 ~ +85
C
C
Tstg
-40 ~ +125
ELECTRICAL CHARACTERISTICS
(Ta=25C,V+=9V, Rg=600, RL=47k, Vin=1.5Vrms, f=1kHz,all controls flat unless otherwise specified)
PARAMETER
Operating Voltage
SYMBOL
TEST CONDITION
MIN.
7.5
-
TYP. MAX.
UNIT
V
V+
IDD
9.0
40
10.0
50
Supply Current
No signal
mA
V
Reference Voltage
VREF
No signal
4.0
4.5
5.0
MAIN VOLUME=-20dB
THD=1%
Maximum Input Voltage
VIM
2.2
2.2
1.5
2.4
2.4
2.4
-
-
-
Vrms
Vrms
Vrms
Maximum Output Voltage 1
Maximum Output Voltage 2
VOM1
VOM2
THD=1%
THD=1%, f=50kHz
MAIN VOLUME=0dB
INPUT GAIN=+15dB
Vin=100mVrms
Voltage Gain 1
GV1
13
15
17
dB
Voltage Gain 2
Voltage Gain 3
Voltage Gain 4
Voltage Gain 5
Mute Level
GV2
GV3
-1
-82
-82
-6
0
1
dB
dB
dB
dB
dB
MAIN VOLUME=-79dB
-79
-79
-3
-76
-76
1
FADER VOLUME
FL, FR, RL, RR =-79dB
GV4
GV5
f=100kHz
MAIN VOLUME=Mute
Filter : 400Hz-30kHz
Mute
-
-100
-90
Channel Balance
GCB
MAIN VOLUME=0dB
-1
-
0
1
dB
%
Total Harmonic Distortion
THD
VO=1.5Vrms, BW=400Hz-30kHz
0.01
0.05
-103
(7)
-96.5
(15)
dBV
(uVrms)
dBV
Output Noise Voltage 1
Output Noise Voltage 2
VNO1
VNO2
Rg=0, Filter : A-Weighted
-
-
Fader Volume=Mute
-110
(3)
-100
(10)
Rg=0, Filter : A-Weighted
Selected Input : Rg=0
Unselected Input : Signal
(uVrms)
Cross Talk
CT
CS
90
90
100
100
-
-
dB
dB
Channel Separation
Rg=0
Loudness
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP. MAX.
UNIT
Loudness=ON
Main Volume=-24dB, f=40Hz
Loudness=ON
GLDL
Maximum Low Boost Level
Maximum High Boost Level
9.5
12
5
14.5
7.5
dB
GLDH
2.5
dB
Main Volume=-24dB, f=10kHz
– 2 –
NJW1221
Graphic Equalizer
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP. MAX.
UNIT
Band1=+15dB, fC1=100Hz
Vin=0.1Vrms, f=100Hz
Band1=-15dB, fC1=100Hz
f=100Hz
Band2=+15dB, fC2=320Hz
Vin=0.1Vrms, f=320Hz
Band2=-15dB, fC2=320Hz
f=320Hz
Band3=+15dB, fC3=1kHz
Vin=0.1Vrms, f=1kHz
Band3=-15dB, fC3=1kHz
f=1kHz
Band4=+15dB, fC4=3.2kHz
Vin=0.1Vrms, f=3.2kHz
Band4=-15dB, fC4=3.2kHz
f=3.2kHz
G1BST
Band 1 Boost Level
Band 1 Cut Level
Band 2 Boost Level
Band 2 Cut Level
Band 3 Boost Level
Band 3 Cut Level
Band 4 Boost Level
Band 4 Cut Level
Band 5 Boost Level
Band 5 Cut Level
12.5
15.0
-15.0
15.0
-15.0
15.0
-15.0
15.0
-15.0
15.0
-15.0
68
17.5
dB
G1CUT
G2BST
G2CUT
G3BST
G3CUT
G4BST
G4CUT
G5BST
G5CUT
fC11
-17.5
-12.5
dB
dB
12.5
17.5
-17.5
-12.5
dB
12.5
17.5
dB
-17.5
-12.5
dB
12.5
17.5
dB
-17.5
-12.5
dB
Band5=+15dB, fC5=10kHz
Vin=0.1Vrms, f=10kHz
Band5=-15dB, fC5=10kHz
f=10kHz
Band1=+15dB, fC1=68Hz
Vin=0.1Vrms
12.5
17.5
dB
-17.5
-12.5
dB
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Hz
Band1=+15dB, fC1=100Hz
Vin=0.1Vrms
Band1=+15dB, fC1=150Hz
Vin=0.1Vrms
Band2=+15dB, fC2=210Hz
Vin=0.1Vrms
Band2=+15dB, fC2=320Hz
Vin=0.1Vrms
Band2=+15dB, fC2=460Hz
Vin=0.1Vrms
Band3=+15dB, fC3=0.68kHz
Vin=0.1Vrms
Band3=+15dB, fC3=1kHz
Vin=0.1Vrms
Band3=+15dB, fC3=1.5kHz
Vin=0.1Vrms
Band4=+15dB, fC4=2.1kHz
Vin=0.1Vrms
Band4=+15dB, fC4=3.2kHz
Vin=0.1Vrms
Band4=+15dB, fC4=6.4kHz
Vin=0.1Vrms
Band5=+15dB, fC5=6.8kHz
Vin=0.1Vrms
Band5=+15dB, fC5=10kHz
Vin=0.1Vrms
Band5=+15dB, fC5=15kHz
Vin=0.1Vrms
Center Frequency Band 1
Center Frequency Band 2
Center Frequency Band 3
Center Frequency Band 4
fC12
100
150
210
320
460
0.68
1
Hz
fC13
Hz
fC21
Hz
fC22
Hz
fC23
Hz
fC31
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
kHz
fC32
fC33
1.5
fC41
2.1
fC42
3.2
fC43
4.6
fC51
6.8
Center Frequency Band 5
Quality Factor
fC52
10
fC53
15
Q1
Q2
Q3
Q4
-
-
-
-
0.7
1
-
-
-
-
1.4
2.0
– 3 –
NJW1221
Spectrum Analyzer
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP. MAX.
UNIT
V
Output Voltage Range
Center Frequency 1
VO
fC1
0
-
-
3.3
-
62
Hz
Center Frequency 2
Center Frequency 3
Center Frequency 4
Center Frequency 5
Center Frequency 6
fC2
fC3
fC4
fC5
fC6
-
-
-
-
-
157
392
1
-
-
-
-
-
Hz
Hz
Hz
Hz
2.51
6.34
kHz
kHz
Center Frequency 7
Quality Factor
fC7
Q
-
-
16
2
-
-
Sub Woofer
PARAMETER
SYMBOL
GSWMAX
GSWMIN
VIM
TEST CONDITION
FADER VOLUME=0dB
FADER VOLUME=-79dB
THD=1%
MIN.
-2
TYP. MAX.
UNIT
dB
Maximum Gain
0
2
-76
-
Minimum Gain
-82
2.2
2.2
-79
2.4
2.4
dB
Maximum Input Voltage
Maximum Output Voltage
Vrms
Vrms
VOM
THD=1%
-
Total Harmonic Distortion
Cut off Frequency
THD
f=100Hz, Vin=1.5Vrms
-
0.05
0.1
%
fCSW1
fCSW2
fC=55Hz Setting
fC=85Hz Setting
-
-
55
85
-
-
Hz
Hz
Hz
fCSW3
fC=120Hz Setting
Order=2 Setting
Order=4 Setting
-
-
-
120
2
-
-
-
Order
-
-
4
Phase Changer
-
-
Phase SW=OFF
Phase SW=ON
-
-
0
-
-
deg.
deg.
180
High Pass Filter
PARAMETER
SYMBOL
fCHP1
TEST CONDITION
fC=62Hz Setting
MIN.
TYP. MAX.
UNIT
Hz
-
-
-
62
95
-
-
-
Cut off Frequency
fCHP2
fC=95Hz Setting
Hz
fCHP3
fC=135Hz Setting
135
Hz
Beep Control
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP. MAX.
UNIT
External input
BEEP VOLUME=0dB
External input
BEEP VOLUME=-60dB
Internal Beep
BEEP VOLUME = 0dB
Internal Beep
GB1
-1
0
1
dB
Voltage Gain
GB2
VB
fB
-63
2.8
1.7
-60
3.3
2.0
-57
3.8
2.3
dB
Beep Level
Vpp
kHz
Beep Frequency
BEEP VOLUME = 0dB
– 4 –
NJW1221
Headphone Volume
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP. MAX.
UNIT
HP VOLUME=0dB
THD=1%
Maximum Input Voltage
Voltage Gain 1
VIM
2.2
2.4
15
-
Vrms
GV1
GV2
HP VOLUME=15dB
13
-1
-
17
dB
dB
dB
%
Voltage Gain 2
0
1
Voltage Gain 3
GV3
HP VOLUME=-79dB
-79
0.01
-
VO=1.5Vrms
BW=400-30kHz
Total Harmonic Distortion
Output Noise Voltage 1
Output Noise Voltage 2
THD
VNO1
VNO2
-
0.05
FADER VOLUME=Mute
Rg=0, Filter : A-Weighted
-110
(3)
dBV
(uVrms)
-
-
-
-110
(3)
dBV
(uVrms)
Rg=0, Filter : A-Weighted
-
Operational Amplifier
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP. MAX.
UNIT
-120
-
dBV
(uVrms)
Output Noise Voltage
VNO
Rg=0, Filter : A-Weighted
-
(1)
Maximum Input Voltage
VIM
THD=1%
2.2
2.4
-
Vrms
– 5 –
NJW1221
TIMING ON THE I2C BUS (SDA,SCL)
SDA
tBUF
tHD:STA
tSP
tf
tr
tf
tr
tSU:DAT
SCL
tHD:STA
tSU:STA
tSU:STO
tLOW
tHD:DAT
tHIGH
S
Sr
P
S
CHARACTERISTICS OF I/O STAGES FOR I2C BUS (SDA,SCL)
I2C BUS Load Conditions
STANDARD MODE :
FAST MODE :
Pull up resistance 4k (Connected to +5V), Load capacitance 200pF (Connected to GND)
Pull up resistance 4k (Connected to +5V), Load capacitance 50pF (Connected to GND)
Standard mode
Fast mode
PARAMETER
SYMBOL
UNIT
MIN.
TYP. MAX. MIN.
TYP. MAX.
Low Level Input Voltage
VIL
VIH
VOL
0
2.7
0
-
-
-
1.5
5.0
0.4
0
2.7
0
-
-
-
1.5
5.0
0.4
V
V
V
High Level Input Voltage
Low level output voltage (3mA at SDA pin)
Input current each I/O pin with an input voltage
between 0.1VDD and 0.9VDDmax
Ii
-10
-
10
-10
-
10
µA
– 6 –
NJW1221
CHARACTERISTICS OF BUS LINES (SDA,SCL) FOR I2C-BUS DEVICES
Standard mode
Fast mode
PARAMETER
SYMBOL
UNIT
MIN.
TYP. MAX. MIN.
TYP. MAX.
SCL clock frequency
fSCL
tHD:STA
tLOW
tHIGH
tSU:STA
tHD:DAT
tSU:DAT
tr
-
4.0
4.7
4.0
4.7
0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
100
-
0.6
1.3
0.6
0.6
0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
400
kHz
µs
µs
µs
µs
µs
ns
ns
ns
µs
µs
pF
V
Hold time (repeated) START condition.
Low period of the SCL clock
-
-
-
-
High period of the SCL clock
-
-
Set-up time for a repeated START condition
Data hold time NOTE)
-
-
-
-
Data set-up time
250
-
-
100
-
-
Rise time of both SDA and SCL signals
Fall time of both SDA and SCL signals
Set-up time for STOP condition
Bus free time between a STOP and START condition
Capacitive load for each bus line
Noise margin at the Low level
1000
300
tf
-
300
-
300
tSU:STO
tBUF
4.0
4.7
-
-
0.6
1.3
-
-
-
-
Cb
400
400
VnL
0.5
1
-
-
0.5
1
-
-
Noise margin at the High level
VnH
V
Cb ; total capacitance of one bus line in pF.
NOTE). Data hold time : tHD:DAT
Please hold the Data Hold Time (tHD:DAT) to 300ns or more to avoid status of unstable at SCL falling edge.
The SDA block in the NJW1221 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 :
(b) High level Low level :
T
T
LH ≈ RP*CD
HL ≈ RD*CD
In addition, Schottky barrier diode (SBD) influences a Low level at the Acknowledge. Therefore choose the low forward
voltage (Vf) as much as possible.
VDD
RP
RP
SCL
SDA
SBD
MASTER
NJW1200
RD
CD
– 7 –
NJW1221
DEFINITION OF I2C REGISTER
I2C 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 ADDRESS
Slave Address
Hex
MSB
LSB
-
1
0
0
0
0
0
0
0
80(h)
CONTROL REGISTER TABLE
The select address sets each function (Input Selector, Input Gain, Main Volume, Loudness, Parametric Equalizer,
High Pass Filter, Low Pass Filter, Fader Volume, Subwoofer Volume, Headphone Volume, Beep Control, Other Settings).
The auto increment function cycles the select address as follows.
00H01H02H03H04H05H06H07H08H09H0AH0BH0CH0DH0EH0FH10H11H00H
<Write Mode>
BIT
Select
Address
D4
D3
D2
D1
D0
D7
D6
D5
00H
01H
02H
03H
04H
05H
06H
07H
08H
09H
0AH
0BH
0CH
0DH
0EH
0FH
10H
11H
INPUT SELECTOR
INPUT GAIN
MAIN VOL
LOUDNESS EQPASS
HPF
PHASE
LPFORDER
EQ1LVL
LPF
*
*
*
*
*
EQ1Q
BCEQ1
BCEQ2
BCEQ3
BCEQ4
BCEQ5
EQ2Q
EQ3Q
EQ4Q
EQ5Q
EQ2LVL
EQ3LVL
EQ4LVL
EQ5LVL
EQ1FC
EQ5FC
EQ2FC
EQ3FC
BEEP VOL
EQ4FC
BSEL
*
*
*
*
FADER FL
FADER FR
FADER RL
FADER RR
SUBW VOL
EQTEST
HP VOL
SM SP
SM HP
SSMAIN
SSEQ
BEEP
SSFADER
SATEST
SS SW
SS TIME
SA RST
SA DET
SUBW SW
HPTEST
VR1TEST
VR2TEST
* : Don’t Care
– 8 –
NJW1221
CONTROL REGISTER DEFAULT VALUE
Control register default value is all “0”.
BIT
Select
D4
D3
D2
D1
D0
Address
00H
01H
02H
03H
04H
05H
06H
07H
08H
09H
0AH
0BH
0CH
0DH
0EH
0FH
10H
11H
D7
D6
D5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
*The control resistor setting may not be above values when power is turned on due to the noise of power supply.
Please send initial data after power on.
– 9 –
NJW1221
INSTRUCTION CODE
a) INPUT SELECTOR, INPUT GAIN SETTING
BIT
Select
Address
D4
D3
D2
INPUT GAIN
INPUT SELECTOR : INPUT 1 to 5 (Single Ended), INPUT 6,7 (Single Ended/Differential), Mute
INPUT GAIN : 0 to +15 dB (1dB/Step)
D1
D0
D7
D6
D5
00H
INPUT SELECTOR
b) MAIN VOLUME SETTING
BIT
Select
Address
D4
D3
D2
D1
D0
D7
D6
D5
00H
MAIN VOL
MAIN VOL: Main volume setting +23.5 to -79.5 dB (0.5dB/Step) / Mute
c) LOUDNESS, HPF, LPF SETTING
BIT
Select
Address
D4
D3
D2
D1
D0
D7
D6
D5
01H
EQPASS
HPF
PHASE
LPF
LOUDNESS
LPFORDER
LOUDNESS : Loudness ON/OFF setting
EQPASS : Equalizer pass switch ON/OFF setting
LPFORDER : Low pass filter 2nd/4th order setting
HPF : High pass filter cut off frequency setting
PHASE : Sub woofer phase switch setting
LPF : Low pass filter cut off frequency setting
d) EQUALIZER QUALITY FACTOR, GAIN SETTING
BIT
Select
Address
D4
D3
D2
D1
D0
D7
*
D6
D5
03H
04H
05H
06H
07H
EQ1Q
EQ2Q
EQ3Q
EQ4Q
EQ5Q
BCEQ1
BCEQ2
BCEQ3
BCEQ4
BCEQ5
EQ1LVL
*
EQ2LVL
EQ3LVL
EQ4LVL
EQ5LVL
*
*
*
EQ1Q, EQ2Q, EQ3Q, EQ4Q, EQ5Q : Equalizer quality factor setting
Quality Factor: 0.7, 1.0, 1.4, 2.0
BCEQ1, BCEQ2, BCEQ3, BCEQ4, BCEQ5 : Boost cut select for equalizer control
“0” : Cut
“1” : Boost
EQ1LVL, EQ2LVL, EQ3LVL, EQ4LVL, EQ5LVL : Equalizer Level Setting
Cut Level
: -15 to 0dB(1dB/Step)
Boost Level : 0 to +15dB(1dB/Step)
e) EQUALIZER CENTER FREQUENCY/BEEP VOLUME SETTING
BIT
Select
Address
D4
D3
D2
D1
D0
D7
D6
D5
08H
09H
EQ1FC
EQ5FC
EQ2FC
BSEL
EQ3FC
BEEP VOL
EQ4FC
EQ1FC, EQ2FC, EQ3FC, EQ4FC, EQ5FC : Equalizer center frequency setting
BSEL : Beep signal source (External/Internal) setting
BEEP VOL : Beep volume setting 0 to -60 (2dB/step) / Mute
– 10 –
NJW1221
f) FADER VOLUME SETTING
BIT
Select
Address
D4
D3
D2
D1
D0
D7
*
D6
D5
0AH
0BH
0CH
0DH
FADER FL
FADER FR
FADER RL
FADER RR
*
*
*
FADER FL, FADER FR, FADER RL, FADER RR : Fader volume setting 0 to -79 (1dB/step) / Mute
g) SUB WOOFER VOLUME SETTING
BIT
Select
Address
D4
D3
SUBW VOL
D2
D1
D0
D7
D6
D5
0EH
EQTEST
EQ TEST* : “0” : Normal operation
“1” : Test mode
*For device check use only. Set {D7}={0} in usual.
SUBW VOL : Sub woofer volume setting +15 to -79 (1dB/step) / Mute
h) HEADPHONE VOLUME SETTING
BIT
Select
Address
D4
D3
D2
D2
D1
D1
D0
D0
D7
D6
D5
0FH
HP VOL
HP VOL : Headphone volume setting +15.5 to -79.5 (0.5dB/step) / Mute
i) SOFT MUTE, SOFT STEP SETTING
BIT
Select
Address
D4
D3
D7
D6
D5
10H
SM SP
SM HP
SSMAIN
SSEQ
SSFADER SS SW
SS TIME
SM SP : Soft mute for fader volume and subwoofer volume
SM HP : Soft mute for headphone volume
SSMAIN : Soft step ON/OFF setting for main volume
SSEQ : Soft step ON/OFF setting for equalizer
SSFADER : Soft step ON/OFF setting for fader volume
SS SW : Soft step ON/OFF setting sub woofer volume
SSTIME : Soft step time setting
j) SPECTRUM ANALYZER, SUB WOOFER OUTPUT, TEST MODE SETTING
BIT
Select
Address
D4
D3
D2
D1
D0
D7
D6
D5
11H
SA RST
SA DET SUBW SW
BEEP
SA TEST HP TEST VR1TEST VR2TEST
SA RST : Reset signal for spectrum analyzer
SADET : Spectrum analyzer detect point selector
SUBW SW : Sub woofer output switch control
BEEP : BEEP ON/OFF setting
SA TEST* : “0” : Normal operation, ”1” : Test mode
HP TEST* : “0” : Normal operation, ”1” : Test mode
VR1TEST* : “0” : Normal operation, ”1” : Test mode
VR2TEST* : “0” : Normal operation, ”1” : Test mode
*For device check use only. Set {D3,D2,D1,D0}={0,0,0,0} in usual.
– 11 –
NJW1221
INPUT SELECTOR (Select Address : 00H)
INPUT SELECTOR
D7
0
D6
0
D5
0
D4
0
INPUT 1
INPUT 2
0
0
0
1
INPUT 3
0
0
1
0
INPUT 4
0
0
1
1
INPUT 5
0
1
0
0
INPUT 6 (Single Ended)
INPUT 7 (Single Ended)
INPUT 6 (Differential)
INPUT 7 (Differential)
MUTE
0
1
0
1
0
1
1
0
1
1
0
1
1
1
1
0
1
1
1
1
*: Default Value
INPUT GAIN (Select Address : 00H)
INPUT GAIN
Gain(dB)
0*
D3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
D2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
D1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
D0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
*: Default Value
– 12 –
NJW1221
MAIN VOLUME (Select Address : 01H)
MAIN VOL
Gain (dB)
+23.5
+23
HEX
FE
FD
FC
FB
FA
F9
D7
1
D6
1
D5
1
D4
D3
1
D2
1
D1
1
D0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
+22.5
+22
1
1
1
1
1
0
0
1
1
1
1
0
1
1
+21.5
+21
1
1
1
1
0
1
0
1
1
1
1
0
0
1
+20.5
+20
F8
1
1
1
1
0
0
0
F7
1
1
1
0
1
1
1
+19.5
F6
1
1
1
0
1
1
0
:
:
:
:
:
:
+3
+2.5
+2
D5
D4
D3
D2
D1
D0
CF
CE
CD
CC
CB
CA
C9
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
+1.5
+1
+0.5
0
-0.5
-1
-1.5
-2
-2.5
-3
:
:
:
:
:
:
-75
-75.5
-76
39
38
37
36
35
34
33
32
31
30
00
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
1
1
0
1
1
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
0
0
0
1
1
0
0
1
1
0
0
0
1
0
1
0
1
0
1
0
1
0
0
-76.5
-77
-77.5
-78
-78.5
-79
-79.5
Mute*
*: Default Value
– 13 –
NJW1221
LOUDNESS (Select Address : 02H)
LOUDNESS
Loudness Setting
D7
OFF*
ON
0
1
*: Default Value
EQUALIZER PASS SWITCH (Select Address : 02H)
EQPASS
Switch Setting
D6
OFF*
ON
0
1
*: Default Value
HIGH PASS FILTER (Select Address : 02H)
HPF
Cut Off
Frequency
D5
0
D4
0
Flat*
62 Hz
95 Hz
135 Hz
0
1
1
0
1
1
*: Default Value
LOW PASS FILTER (Select Address : 02H)
PHASE
Phase
D3
0 degrees*
0
180 degrees
1
*: Default Value
LPFORDER
D2
LPF Order Setting
2nd Order*
0
4th Order
1
*: Default Value
LPF
Cut Off
Frequency
D1
0
D0
0
Flat*
55 Hz
85 Hz
120 Hz
0
1
1
0
1
1
*: Default Value
– 14 –
NJW1221
EQUALIZER QUALITY FACTOR (Select Address : 03H, 04H, 05H, 06H, 07H)
EQ1Q
EQ2Q
EQ3Q
EQ4Q
EQ5Q
Quality Factor
D6
0
D5
0
0.7*
1.0
1.4
2.0
0
1
1
0
1
1
*: Default Value
EQUALIZER BOOST/CUT LEVEL (Select Address : 03H, 04H, 05H, 06H, 07H)
BCEQ1
BCEQ2
BCEQ3
BCEQ4
BCEQ5
Equalizer Cut or Boost
D4
Cut*
0
Boost
1
*: Default Value
EQ1LVL
EQ2LVL
EQ3LVL
EQ4LVL
EQ5LVL
Cut Gain(dB)
-15
Boost Gain(dB)
+15
D3
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
D2
D1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
D0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
-14
-13
-12
-11
-10
-9
+14
+13
+12
+11
+10
*9
-8
+8
-7
+7
-6
+6
-5
+5
-4
+4
-3
+3
-2
+2
-1
+1
0*
0
*: Default Value
– 15 –
NJW1221
EQUALIZER BAND 1, BAND 2, BAND 3, BAND 4 CENTER FREQUENCY (Select Address : 08H)
EQ1FC
Equalizer Band 1
Center Frequency
D7
0
D6
0
68Hz*
100Hz
150Hz
0
1
1
0
*: Default Value
EQ2FC
Equalizer Band 2
Center Frequency
D5
D4
210Hz*
320Hz
460Hz
0
0
1
0
1
0
*: Default Value
EQ3FC
Equalizer Band 3
Center Frequency
D3
0
D2
0
0.68kHz*
1kHz
0
1
1.5kHz
1
0
*: Default Value
EQ4FC
Equalizer Band 4
Center Frequency
D1
D0
2.1kHz*
3.2kHz
4.6kHz
0
0
1
0
1
0
*: Default Value
EQUALIZER BAND 5 CENTER FREQUENCY (Select Address : 09H)
EQ5FC
Equalizer Band 5
Center Frequency
D7
0
D6
0
6.8kHz*
10kHz
15kHz
0
1
1
0
*: Default Value
– 16 –
NJW1221
BEEP SOURCE SELECTOR(Select Address : 09H)]
BSEL
Beep Source
D5
External*
Internal
0
1
*: Default Value
BEEP VOLUME (Select Address : 09H)
BEEP VOL
Gain(dB)
HEX
1F
D4
1
D3
1
D2
1
D1
1
D0
1
0
-2
1E
1
1
1
1
0
-4
1D
1C
1B
1
1
1
0
1
-6
1
1
1
0
0
-8
1
1
0
1
1
-10
1A
1
1
0
1
0
:
:
:
:
:
:
-52
-54
05
04
03
02
01
00
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
1
1
0
0
1
0
1
0
1
0
-56
-58
-60
Mute*
*: Default Value
FADER VOLUME (Select Address : 0AH, 0BH, 0CH, 0DH)
FADER FL
FADER FR
FADER RL
FADER RR
D5
1
D4
1
D3
1
D2
1
D1
1
D0
1
Gain(dB)
HEX
7F
D6
1
0
-1
-2
-3
-4
-5
7E
1
1
1
1
1
1
0
7D
7C
7B
1
1
1
1
1
0
1
1
1
1
1
1
0
0
1
1
1
1
0
1
1
7A
1
1
1
1
0
1
0
:
:
:
:
:
:
-76
-77
33
32
31
30
00
0
0
0
0
0
1
1
1
1
0
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
1
0
1
0
0
-78
-79
Mute*
*: Default Value
– 17 –
NJW1221
EQUALIZER TEST MODE (Select Address : 0EH)
EQTEST
Phase
D7
OFF*
ON
0
1
*: Default Value
SUB WOOFER VOLUME (Select Address : 0EH)
SUBW VOL
Gain(dB)
+15
HEX*
7E
D6
1
D5
1
D4
1
D3
1
D2
1
D1
1
D0
0
+14
7D
1
1
1
1
1
0
1
+13
7C
1
1
1
1
1
0
0
+12
7B
1
1
1
1
0
1
1
+11
7A
1
1
1
1
0
1
0
:
:
:
:
:
:
+2
+1
0
71
70
6F
6E
6D
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
1
1
1
0
0
1
1
1
0
0
1
1
0
1
0
1
0
1
-1
-2
:
:
:
:
:
:
-75
-76
24
23
22
21
20
00
0
0
0
0
0
0
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
1
1
0
0
0
0
1
0
1
0
0
-77
-78
-79
Mute*
*: Default Value
– 18 –
NJW1221
HEADPHONE VOLUME (Select Address : 0FH)
HP VOL
D3
Gain (dB)
+15.5
+15
HEX
FE
FD
FC
FB
FA
F9
D7
1
D6
1
D5
1
D4
1
D2
1
D1
1
D0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
+14.5
+14
1
1
1
1
1
0
0
1
1
1
1
0
1
1
+13.5
+13
1
1
1
1
0
1
0
1
1
1
1
0
0
1
+12.5
+12
F8
1
1
1
1
0
0
0
F7
1
1
1
1
1
1
1
+11.5
F6
1
1
1
1
1
1
0
:
:
:
:
:
:
+3
+2.5
+2
E5
E4
E3
E2
E1
E0
DF
DE
DD
DC
DB
DA
D9
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
+1.5
+1
+0.5
0
-0.5
-1
-1.5
-2
-2.5
-3
:
:
:
:
:
:
-75
-75.5
-76
49
48
47
46
45
44
43
42
41
40
00
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
0
0
0
1
1
0
0
1
1
0
0
0
1
0
1
0
1
0
1
0
1
0
0
-76.5
-77
-77.5
-78
-78.5
-79
-79.5
Mute*
*: Default Value
– 19 –
NJW1221
SPEAKER OUTPUT SOFT MUTE (Select Address : 10H)
SM SP
Soft Mute Setting
D7
OFF*
ON
0
1
*: Default Value
HEADPHONE OUTPUT SOFT MUTE (Select Address : 10H)
SM HP
Soft Mute Setting
D6
OFF*
ON
0
1
*: Default Value
MAIN VR SOFT STEP (Select Address : 10H)
SSMAIN
Soft Step Setting
D5
OFF*
ON
0
1
*: Default Value
EQUALIZER SOFT STEP (Select Address : 10H)
SSEQ
Soft Step Setting
D4
OFF*
ON
0
1
*: Default Value
FADER SOFT STEP (Select Address : 10H)
SSFADER
Soft Step Setting
D3
OFF*
ON
0
1
*: Default Value
SUB WOOFER SOFT STEP (Select Address : 10H)
SSSW
Soft Step Setting
D2
OFF*
ON
0
1
*: Default Value
– 20 –
NJW1221
SOFT STEP TIME (Select Address : 10H)
SS TIME
Soft Step Time
10msec*
D1
0
D0
0
20msec
0
1
50msec
1
0
100msec
1
1
*: Default Value
SPECTRUM ANALYZER RESET (Select Address : 11H)
SA RST
Reset
OFF*
ON
D7
0
1
*: Default Value
SPECTRUM ANALYZER DETECT POINT (Select Address : 11H)
SA DET
Detect Point
Before Main VR*
Before Fader VR*
D6
0
1
*: Default Value
SUB WOOFER OUTPUT SWITCH (Select Address : 11H)
SUBW SW
Detect Point
Sub Woofer Signal*
Rear Signal
D5
0
1
*: Default Value
BEEP ON/FF SWITCH (Select Address : 11H)
BEEP
Detect Point
OFF*
D4
0
ON
1
*: Default Value
TEST MODE (Select Address : 11H)
TEST MODE
TEST MODE
D3
D2
D1
D0
OFF*
0
0
0
0
*: Default Value
– 21 –
NJW1221
[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.
– 22 –
相关型号：
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