NJW1201A [NJRC]
2ch Electronic Volume with Dynamic Bass Boost 5+1diff Input Selector; 双声道电子音量与动态低音提升5 + 1diff输入选择
| 型号： | NJW1201A |
| 厂家： | 
NEW JAPAN RADIO |
| 描述： | 2ch Electronic Volume with Dynamic Bass Boost 5+1diff Input Selector |
| 文件： | 总30页 (文件大小：369K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
2ch Electronic Volume with Dynamic Bass Boost
ꢀGENERAL DESCRIPTION
ꢀPACKAGE OUTLINE
The NJW1201A is a 2-channel electronic volume with Dynamic
Bass Boost. 5+1diff-in 1-out selector. It includes 5+1diff input
selector, 1st-volume, 2nd-volume, 3 band Tone, Sound mode,
Dynamic Bass Boost. The NJW1201A performs low noise and low
distortion characteristics with resistance ladder circuit.
All of functions are controlled by I2C BUS interface.
ꢀFEATURES
NJW1201AFH2
ꢁOperating Voltage
+7.5 to +10V
ꢁI2C BUS Control
ꢁ
ꢁ
ꢁ
ꢁ
ꢁ
ꢁ
ꢁ
ꢁ
ꢁ
ꢁ
ꢁ
ꢁ
Low output noise
Low THD
-110dBVtyp.
0.01%typ.
5+1diff Input Selector
Input Gain
0 to +30dB/2dBstep
1st-Volume
0 to -62dB / 1dBstep, MUTE
0 to -28dB / 2dBstep, MUTE
2nd-Volume
3 Band Tone
0 to ±14dB/ 2dBstep (Treble,Middle), 0 to ±17.5dB/ 2.5dBstep (Bass)
Sound mode
3 modes (eala, ealaTreble, eala & ealaTreble)
2-level Gains
3-level Gains
Sound Gain
Dynamic Bass Boost
Bi-CMOS Technology
Package Outline
LQFP52-H2
ꢀBLOCK DIAGRAM
Filter terminal
for Sound Mode
INPUT(Bch)
39
38
37
36
35
34
33
32
31
30
29
28
27
C33
C21
C20
Filter terminal
+
INPUT4 Bch
INPUT5 Bch
INPUT6 Bch
40
41
42
43
44
45
46
47
48
49
50
51
52
26
for Sound Mode
4.7u
68n
AGC Smoothing Filter
for Dynamic Bass Boost
25
1u
C34
R9
3k
ExtSense terminal.
Possible to unconnect
+
24
4.7u
4.7u
C19
C18
23
4.7u
C35
C36
C37
C38
C17
+
22
OUTPUT(Bch)
4.7u
4.7u
+
V+
VREF
21
20
4.7u
22u
R8
R7
C16
+
INPUT6 Dif f
4.7u
SCL
SDA
+
INPUT6 Ach
19
18
17
16
15
14
4.7u
GND
C15
C14
OUTPUT(Ach)
4.7u
4.7u
C39
C40
+
INPUT5 Ach
INPUT4 Ach
4.7u
+
4.7u
INPUT(Ach)
1
2
3
4
5
6
7
8
9
10
11
12
13
Ver.1.0E
NJW1201A
■PIN CONFIGURATION
39
38
37
36
35
34
33
32
31
30
29
28
27
LQFP52
40
41
42
43
44
45
46
47
48
49
50
51
52
26
25
24
23
22
21
20
19
18
17
16
15
14
1
2
3
4
5
6
7
8
9
10
11
12
13
No.
Symbol
Function
No
Symbol
Function
1
NC
Not Connected
Ach Input3
Ach Input2
Ach Input1
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
Filter for Sound Mode
Bch Bass(Tone) Filter 1
Bch Bass(Tone) Filter 2
Bch Middle(Tone) Filter 1
Bch Middle(Tone) Filter 2
Bch Treble(Tone) Filter
Bch 1st Volume Input
Bch Rec Output
Bch Monitor Output
Bch Input1
SRFil
2
In3A
IN2A
TONEB2B
TONEB1B
3
4
In1A
TONEM2B
TONEM1B
TONEHB
VOLInB
RecOutB
MonOutB
In1B
5
6
Ach Monitor Output
Ach Rec Output
MonOutA
RecOutA
VOLInA
TONEHA
TONEM1A
TONEM2A
TONEB1A
TONEB2A
BPF1
7
8
Ach 1st Volume Input
Ach Treble(Tone) Filter
Ach Middle(Tone) Filter 1
Ach Middle(Tone) Filter 2
Ach Bass(Tone) Filter 1
Ach Bass(Tone) Filter 2
Filter 1 for DBB
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
Bch Input2
IN2B
Bch Input3
IN3B
Not Connected
Bch Input4
NC
IN4B
Filter 2 for DBB
BPF2
Filter 3 for DBB
Not Connected
Bch Input5
BPF3
VOL2CAPA
OutA
NC
IN5B
Ach DC coupling for 2nd Volume
Ach Output
Not Connected
Bch Input6
Reference Voltage
Negative Input for Input6
Ach Input6
NC
Ground
I2C DATA
GND
SDA
IN6B
VREF
In6Diff
In6A
I2C CLOCK
Supply Voltage
SCL
V+
Bch Output
Not Connected
Not Connected
Ach Input5
OutB
NC
Bch 2nd Volume DC coupling
AGC Boost Level for DBB
AGC Smoothing Filter for DBB
Filter for Sound Mode
VOL2CAPB
ExtSense
INT
NC
In5A
Not Connected
Ach Input4
NC
In4A
SurTC
– 2 –
NJW1201A
ꢀ
ABSOLUTE MAXIMUM RATING (Ta=25°C)
PARAMETER
Power Supply Voltage
SYMBOL
V+
RATING
10.5
UNIT
V
Power Dissipation
PD
1200 (Note1)
0 ~ V+ (Note2)
-20 ~ +75
mW
V
Maximum Input Voltage
VIMAX
Topr
Operating Temperature Range
°C
Storage Temperature Range
Tstg
-40 ~ +125
°C
(Note1) EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 2layer, FR-4) mounting
(Note2) Don’t put Input Voltage more than Power Supply Voltage.
ꢀELECTRICAL CHARACTERISTICS
(Ta=25°C,V+=9V, Rg=0Ω, RL=47kΩ, Vin=1Vrms, f=1kHz,1stVOL=0dB, all controls flat unless otherwise specified)
PARAMETER
Operating Voltage
Supply Current
Reference Voltage
Volume Input Resistance
SYMBOL
V+
TEST CONDITION
MIN.
TYP. MAX.
UNIT
V
7.5
-
9.0
12
10.0
18
5.0
-
IDD
No signal
mA
V
VREF
No signal
4.0
-
4.5
RINVOL
No signal
26.5
kΩ
1st Volume=-20dB
THD=1%
Maximum Input Voltage
VIM
2.0
2.4
-
Vrms
Maximum Output Voltage
Maximum Input Gain
Maximum Gain
VOM
GVINMAX
GVMAX
Mute
THD=1%
2.0
-
2.4
30
-
-
Vrms
dB
Input Gain=+30dB
Vin=50mVrms
-1
-
0
1
dB
1st Volume = Mute
2nd Volume = Mute
Mute Level
-100
-90
dB
Channel Balance
GCB
-1
-
0
1
dB
%
Total Harmonic Distortion
THD+N
VO=0.5Vrms, BW=400Hz-30kHz
0.01
0.05
-100
(10)
-94
dBV
Output Noise Voltage 1
VNO1
Rg=0Ω, Filter : A-Weighted
-
(20)
(uVrms)
1st Volume = Mute
2nd Volume=Mute
Rg=0Ω, Filter : A-Weighted
Selected Input : Rg=0Ω
Unselected Input : Signal
-110
(3)
-100
(10)
dBV
(uVrms)
Output Noise Voltage 2
VNO2
-
Cross Talk
CT
CS
-
-
-
-
-80
-80
dB
dB
Channel Separation
Rg=0Ω
♦
Tone Control
(Ta=25°C,V+=9V, Rg=0Ω, RL=47kΩ, Vin=0.1Vrms, f=1kHz,all controls flat unless otherwise specified)
PARAMETER
High Frequency Boost
High Frequency Cut
Mid Frequency Boost
Mid Frequency Cut
SYMBOL
HFBST
TEST CONDITION
TREB=”1111”, f=10kHz
TREB=”0111”, f=10kHz
MIDD=”1111”, f=1kHz
MIDD=”0111”, f=1kHz
BASS=”1111”, f=100Hz
BASS=”0111”, f=100Hz
MIN.
11.5
TYP.
14.0
MAX.
16.5
UNIT
dB
HFCUT
MFBST
MFCUT
LFBST
-16.5
11.5
-14.0
14.0
-11.5
16.5
dB
dB
-16.5
15.0
-20.0
-14.0
17.5
-11.5
20.0
dB
Low Frequency Boost
Low Frequency Cut
dB
LFCUT
-17.5
-15.0
dB
– 3 –
NJW1201A
♦
Sound mode Characteristics
(Ta=25°C,V+=9V, Rg=0Ω, RL=47kΩ, Vin=0.1Vrms, f=1kHz,all controls flat unless otherwise specified)
PARAMETER
SOUND MODE 1
SYMBOL
TEST CONDITION
SOUNDMODE=”01”
Ain-Aout, f=10kHz
SOUNDMODE=”10”
Ain-Aout,
MIN.
TYP.
MAX.
UNIT
GVm1
-
4.0
-
dB
SOUND MODE 2
SOUND MODE 3
GVm2
GVm3
-
-
4.0
4.5
-
-
dB
dB
SOUNDMODE=”11”
Ain-Aout
♦
Sound Gain Characteristics
(Ta=25°C,V+=9V, Rg=0Ω, RL=47kΩ, Vin=0.1Vrms, f=1kHz,all controls flat unless otherwise specified)
PARAMETER
SOUND GAIN 1
SYMBOL
TEST CONDITION
SOUNDGAIN =”0”
MIN.
TYP.
MAX.
UNIT
GVS1
SOUNDMODE=”10”
-
4.0
-
dB
Ain-Aout,
SOUNDGAIN =”1”
SOUNDMODE=”10”
Ain-Aout,
SOUND GAIN 2
GVS2
-
6.5
-
dB
♦
Dynamic Bass Boost Characteristics
(Ta=25°C,V+=9V, Rg=0Ω, RL=47kΩ, Vin=0.05Vrms, f=1kHz,all controls flat unless otherwise specified)
PARAMETER
DBB Gain 1
SYMBOL
GVSDBB1
TEST CONDITION
DBBGain=”01”, (A+B)in-Aout
DBBGain=”10”, (A+B)in-Aout
DBBGain=”11”, (A+B)in-Aout
MIN.
TYP.
7.5
MAX.
UNIT
dB
-
-
-
-
-
-
DBB Gain 2
DBB Gain 3
GVSDBB2
10.5
14.0
dB
GVSDBB3
dB
– 4 –
NJW1201A
!TIMING ON THE I2C BUS (SDA,SCL)
SDA
tf
tBUF
tHD:STA
tSP
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 4kΩ (Connected to +5V), Load capacitance 200pF (Connected to GND)
Pull up resistance 4k (Connected to +5V), Load capacitance 50pF (Connected to GND)
Ω
Standard mode
MIN. TYP. MAX. MIN.
Fast mode
TYP. MAX.
PARAMETER
SYMBOL
UNIT
Low Level Input Voltage
High Level Input Voltage
VIL
VIH
VOL
0.0
2.7
0
-
-
-
1.5
5.0
0.4
0.0
2.7
0
-
-
-
1.5
5.0
0.4
V
V
V
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
– 5 –
NJW1201A
!CHARACTERISTICS OF BUS LINES (SDA,SCL) FOR I2C-BUS DEVICES
Standard mode
Fast mode
PARAMETER
SCL clock frequency
SYMBOL
UNIT
MIN.
TYP. MAX. MIN. TYP. MAX.
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 NJW1201A 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 ꢂHigh level :
(b) High level ꢂLow level :
TLH ≈ RP*CD
HL ≈ RD*CD
T
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
NJW1201A
RD
CD
– 6 –
NJW1201A
ꢀ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
1
0
0
0
88(h)
♦ CONTROL REGISTER TABLE
The select address sets each function (Input Selector, Input Gain, 1st-Volume, Tone Control, 2nd-Volume, ealaSurrond,
Dynamic Bass Boost, Other Settings).
The auto increment function cycles the select address as follows.
00H→01H→02H→03H→04H→00H
<Write Mode>
BIT
Select
Address
D4
D3
D2
INPUT GAIN (0 to 30dB / 2dBstep)
1st-VOL (0 to -55dB / 1dBstep, MUTE)
MIDD (0 to 14dB/ 2dBstep)
2nd-VOL (0 to -28dB / 2dBstep, MUTE)
DBB GAIN (3 levels) DBB SENSE (3 levels)
* : Don’t Care
D1
D0
D7
D6
D5
00H
01H
02H
03H
04H
*
*
INPUT SELECTOR
*
TREB (0 to
BASS (0 to
±
14dB/ 2dBstep)
±17.5dB/ 2.5dBstep)
±
*
SOUND GAIN
SOUND MODE (3 modes)
♦ CONTROL REGISTER DEFAULT VALUE
Control register default value is all “0”.
Select
BIT
D4
D3
D2
D1
D0
Address
D7
D6
D5
00H
01H
02H
03H
04H
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
– 7 –
NJW1201A
!INSTRUCTION CODE
a) INPUT SELECTOR, INPUT GAIN SETTING
BIT
Select
Address
D4
D3
D2
D1
D0
D7
D6
D5
00H
INPUT SELECTOR
INPUT GAIN
*
•INPUT SELECTOR : INPUT 1 to 5 (Single Ended), INPUT 6 (Single Ended/Differential), Mute
•INPUT GAIN : 0 to +30 dB (2dB/Step)
b) HI PATH FILTER SWITCH, 1st VOLUME
BIT
Select
Address
D4
D4
D3
D2
D1
D1
D0
D0
D7
D6
D5
1st VOLUME
01H
*
*
•1st Volume : 0 to -62 dB (1dB/Step) , MUTE
c) TREBLE, MIDDLE
BIT
Select
Address
D3
D3
D3
D2
D7
D6
D5
D5
02H
•TREB : 0 to
• MIDD : 0 to
TREB
BASS
MIDD
±
±
14dB/ 2dBstep
14dB/ 2dBstep
d) BASS, 2nd VOLUME
Select
BIT
BIT
Address
D7
03H
D4
D2
D1
D0
D0
D6
2nd VOLUME
•BASS : 0 to ±17.5dB/ 2.5dBstep
•2nd VOLUME : 0 to -28dB/ 2dBstep , MUTE
e) SOUND ENHANCEMENT, DYNAMIC BASS BOOST
Select
Address
D4
D2
DBB GAIN
D1
D7
D6
D5
SOUND
GAIN
04H
SOUND MODE
DBB SENSE
*
•SOUND GAIN : Sound Gain has 2 levels
•SOUND MODE : Sound mode has 3 types
•DBB GAIN : Dynamic Bass Boost Gain has 3 levels
•DBB SENSE : This means detect level of input signal.
– 8 –
NJW1201A
ꢀINPUT SELECTOR (Select Address : 00H)
00H
D6
D5
D4
INPUT 1
INPUT 2
INPUT 3
INPUT 4
INPUT 5
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
INPUT 6 (Single Ended)
INPUT 6 (Differential)
MUTE
*: Default Value
ꢀINPUT GAIN (Select Address : 00H)
00H
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
D0
0
0
1
1
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
0
1
+2
+4
+6
+8
+10
+12
+14
+16
+18
+20
+22
+24
+26
+28
+30
*: Default Value
– 9 –
NJW1201A
ꢀ1st VOLUME (Select Address : 01H)
01H
Gain (dB)
D5
D4
D3
D2
D1
D0
0
-1
-2
-3
-4
-5
-6
-7
-8
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
1
1
1
1
0
0
0
0
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
ꢃꢃꢃ
-16
ꢃꢃꢃ
-32
ꢃꢃꢃ
-48
ꢃꢃꢃ
-56
-57
-58
-59
-60
-61
-62
MUTE
ꢃꢃꢃ
ꢃꢃꢃ
ꢃꢃꢃ
1
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
0
ꢃꢃꢃ
0
0
0
0
0
0
0
0
ꢃꢃꢃ
0
0
0
0
0
0
0
ꢃꢃꢃ ꢃꢃꢃ ꢃꢃꢃ ꢃꢃꢃ
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
0
0
*: Default Value
– 10 –
NJW1201A
ꢀTREBLE (Select Address : 02H)
02H
Gain(dB)
+14
+12
+10
+8
D7
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
D6
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
D5
1
1
0
0
1
1
0
0
0
0
1
1
0
0
1
1
D4
1
0
1
0
1
0
1
0
0
1
0
1
0
1
0
1
+6
+4
+2
0
0*
-2
-4
-6
-8
-10
-12
-14
*: Default Value
ꢀMIDDLE (Select Address : 02H)
02H
Gain(dB)
+14
+12
+10
+8
D3
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
D2
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
D1
D0
1
1
0
0
1
1
0
0
0
0
1
1
0
0
1
1
1
0
1
0
1
0
1
0
0
1
0
1
0
1
0
1
+6
+4
+2
0
0*
-2
-4
-6
-8
-10
-12
-14
*: Default Value
– 11 –
NJW1201A
ꢀBASS (Select Address : 03H)
03H
Gain(dB)
+17.5
+15
+12.5
+10
+7.5
+5
+2.5
0
0*
-2.5
-5
-7.5
-10
-12.5
-15
-17.5
D7
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
D6
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
D5
1
1
0
0
1
1
0
0
0
0
1
1
0
0
1
1
D4
1
0
1
0
1
0
1
0
0
1
0
1
0
1
0
1
*: Default Value
ꢀ2nd VOLUME (Select Address : 03H)
03H
Gain(dB)
0*
D3
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
D2
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
D1
D0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
-22
-24
-26
-28
MUTE
*: Default Value
– 12 –
NJW1201A
ꢀSOUND GAIN (Select Address : 04H)
04H
D6
SOUND GAIN
Gain Lo*
Gain Hi
0
1
*: Default Value
ꢀSound Enhancement Mode (Select Address : 04H)
04H
SOUND MODE
D5
0
0
D4
0
1
OFF*
ealaTreble
eala
1
0
eala & ealaTreble
1
1
*: Default Value
ꢀDynamic Bass Boost Gain (Select Address : 04H)
04H
DBB GAIN
D3
0
0
1
1
D2
0
1
0
1
OFF*
Gain 1
Gain 2
Gain 3
*: Default Value
ꢀDynamic Bass Boost Sense (Select Address : 04H)
04H
DBB SENSE
D1
D0
Sense 1*
Sense 2
Sense 3
Sense 4
0
0
1
1
0
1
0
1
*: Default Value
– 13 –
NJW1201A
!
TERMINAL DESCRIPTION
No.
SYMBOL
FUNCTION
EQUIVALENT CIRCUIT
VOLTAGE
2
IN3A
IN2A
IN1A
IN1B
IN2B
IN3B
IN4B
IN5B
IN6B
IN6A
IN5A
IN4A
Ach Input3
Ach Input2
Ach Input1
Bch Input1
Bch Input2
Bch Input3
Bch Input4
Bch Input5
Bch Input6
Ach Input6
Ach Input5
Ach Input4
3
4
36
37
38
40
42
44
47
50
52
18.5k
31.5k
V+ / 2
5
MonOutA
RecOutA
BPF1
Ach Monitor Output
Ach Rec Output
Filter 1 for DBB
Filter 3 for DBB
Ach Output
6
13
15
17
22
34
35
BPF3
FB
V+ / 2
V+ / 2
V+ / 2
OutA
50
OutB
Bch Output
RecOutB
MonOutB
Bch Rec Output
Bch Monitor Output
9.3k
7
VOLInA
VOLInB
Ach 1st Volume Input
Bch 1st Volume Input
33
15.7k
4k (PIN.8,32)
8
TONEHA
TONEM2A
TONEB2A
TONEB2B
TONEM2B
TONEHB
Ach Treble(Tone) Filter
Ach Middle(Tone) Filter 2
Ach Bass(Tone) Filter 2
Bch Bass(Tone) Filter 2
Bch Middle(Tone) Filter 2
Bch Treble(Tone) Filter
5.4k (PIN.10.30)
1.7k (PIN.12.28)
10
12
28
30
32
– 14 –
NJW1201A
!
TERMINAL DESCRIPTION
No.
SYMBOL
FUNCTION
EQUIVALENT CIRCUIT
VOLTAGE
9
TONEM1A
TONEB1A
TONEB1B
TONEM1B
Ach Middle(Tone) Filter 1
Ach Bass(Tone) Filter 1
Bch Bass(Tone) Filter 1
Bch Middle(Tone) Filter 1
11
29
31
V+ / 2
14
BPF2
Filter 2 for DBB
V+ / 2
50
5.4k
16
23
VOL2CAPA
VOL2CAPB
Ach DC coupling for 2nd Volume
Bch DC coupling for 2nd Volume
V+ / 2
18
GND
ground
-
0
– 15 –
NJW1201A
!
TERMINAL DESCRIPTION
No.
SYMBOL
FUNCTION
EQUIVALENT CIRCUIT
VOLTAGE
VREG 5V
V+ 9V
4k
19
20
SDA
SCL
I2C DATA
-
I2C CLOCK
8k
SCL:GND
SDA:ACK
21
V+
ExtSense
INT
Supply Voltage
-
V+
V+ / 2
-
50
24
AGC Boost Level for DBB
36k
0.5u
2k
50
25
AGC Smoothing Filter for DBB
– 16 –
NJW1201A
!
TERMINAL DESCRIPTION
No.
SYMBOL
FUNCTION
EQUIVALENT CIRCUIT
VOLTAGE
26
27
45
46
SurTC
Filter for Sound Mode
V+ / 2
FB
16k
10k
SRFil
VREF
IN6Diff
Filter for Sound Mode
V+ / 2
FB
16k
16k
212k
Reference Voltage
V+ / 2
212k
63k
Negative Input for Input6
V+ / 2
37k
– 17 –
NJW1201A
ꢀ
TEST Circuit
Filter terminal
for Sound Mode
INPUT(Bch)
39
38
37
36
35
34
33
32
31
30
29
28
27
C33
C21
Filter terminal
INPUT4 Bch
INPUT5 Bch
INPUT6 Bch
40
41
42
43
44
45
46
47
48
49
50
51
52
26
for Sound Mode
4.7u
4.7u
4.7u
68n
C20
AGC Smoothing Filter
for Dynamic Bass Boost
25
24
23
22
21
20
19
18
17
16
15
14
1u
C34
ExtSense terminal.
C18
C17
4.7u
4.7u
C35
C36
C37
C38
OUTPUT(Bch)
V+
+
VREF
4.7u
4.7u
4.7u
22u
R8
R7
C16
INPUT6 Dif f
INPUT6 Ach
SCL
SDA
GND
OUTPUT(Ach)
C15
C14
4.7u
4.7u
C39
C40
INPUT5 Ach
INPUT4 Ach
4.7u
4.7u
INPUT(Ach)
1
2
3
4
5
6
7
8
9
10
11
12
13
– 18 –
NJW1201A
ꢀ
Application Circuit
Filter terminal
for Sound Mode
INPUT(Bch)
39
38
37
36
35
34
33
32
31
30
29
28
27
C33
C21
Filter terminal
+
INPUT4 Bc h
INPUT5 Bc h
INPUT6 Bc h
40
41
42
43
44
45
46
47
48
49
50
51
52
26
for Sound Mode
4.7u
68n
C20
AGC Smoothing Filter
for Dynamic Bass Boost
25
1u
C34
R9
3k
ExtSense terminal.
Possible to unconnect
+
24
4.7u
4.7u
C19
C18
23
4.7u
C35
C36
C37
C38
C17
+
22
OUTPUT(Bch)
4.7u
4.7u
+
V+
VREF
21
20
4.7u
22u
R8
R7
C16
+
INPUT6 Dif f
4.7u
SCL
SDA
+
INPUT6 Ach
19
18
17
16
15
14
4.7u
GND
C15
C14
OUTPUT(Ach)
4.7u
4.7u
C39
C40
+
INPUT5 Ach
INPUT4 Ach
4.7u
+
4.7u
INPUT(Ach)
1
2
3
4
5
6
7
8
9
10
11
12
13
– 19 –
NJW1201A
■ APPLICATION NOTE
[1] Input Selector
(1-1) Single ended stereo Inputs
All single ended inputs (pin.2,3,4,36,37,38,40,42,44,47,50,52) have an input impedance of 50kΩ.
(1-2) Differential Input
In6A(pin.47)/In6B(pin.44) can use as single-ended input or differential input.
In case of differential input, In6A/In6B are positive input have an input impedance of 50kΩ.
And In6diff(pin.46) is negative input terminal has an input impedance of 50kΩ.
To improve CMRR at input, please connect the same value of coupling capacitor to In6A/In6B/In6diff.
[2] Monitor out(pin.5,35), Rec out(pin6,34), VOLIn(pin.7,33)
Hi-path filter (Sallen-Key) can be made up with these terminals.
1
f0 =
2π R1R2C1C2
C1C2
R2
Q =
C1 + C2
R R2C1C2
1
MonitorOut(PIN:5,35) RecOut(PIN:6,34)
C1
VOLIn(PIN:7,33)
R1
C2
– 20 –
NJW1201A
■ APPLICATION NOTE
[3] TONE control
(a)Bass
(a-1)Boost
(a-2)Cut
IN
IN
OUT
OUT
R2
R1
R1
C1
R2
TONE-B2(PIN:12,28)
TONE-B1(PIN:11,29)
TONE-B1(PIN:11,29)
TONE-B2(PIN:12,28)
C2
C1
R3
C2
R3
1
f0 =
(Hz)
2π (R1+ R2) R3 C1 C2
(R1+ R2) R3 C1 C2
Q =
R2 C2 + R3
(
C1+ C2
)
(
R1 + R2 + R3
)
C2 + R3 C1
C1 + C2
(dB)
G0 = ±20Log
R2 C2 + R3
(
)
Table.a-1 : Internal resistance in each Gain.
Gain
±17.5dB 48.3kΩ
±15dB 45.8kΩ
±12.5dB 42.5kΩ
R1
R2
1.7kΩ
4.2kΩ
7.5kΩ
11.9kΩ
17.8kΩ
25.6kΩ
36.1kΩ
50kΩ
±10dB
±7.5dB
±5dB
38.1kΩ
32.2kΩ
24.4kΩ
13.9kΩ
0Ω
±2.5dB
±0dB
– 21 –
NJW1201A
(b)Middle
(b-1)Boost
(b-2)Cut
IN
IN
OUT
OUT
R2
R1
R1
C1
R2
TONE-M2(PIN:10,30)
TONE-M1(PIN:9,31)
TONE-M1(PIN:10,30)
TONE-M2(PIN:9,31)
C2
C1
R3
C2
R3
1
f0 =
(Hz)
2π (R1+ R2) R3 C1 C2
(R1+ R2) R3 C1 C2
Q =
R2 C2 + R3
(
C1+ C2
)
(
R1 + R2 + R3
)
C2 + R3 C1
C1 + C2
(dB)
G0 = ±20Log
R2 C2 + R3
(
)
Table.a-1 : Internal resistance in each Gain.
Gain
±14dB
±12dB
±10dB
±8dB
±6dB
±4dB
±2dB
±0dB
R1
R2
44.6kΩ
41.7kΩ
38.1kΩ
33.6kΩ
27.8kΩ
20.6kΩ
11.5kΩ
0Ω
5.4kΩ
8.3kΩ
11.9kΩ
16.4kΩ
22.2kΩ
29.4kΩ
38.5kΩ
50kΩ
– 22 –
NJW1201A
(c)Treble
(c-1)Boost
(c-2)Cut
IN
IN
OUT
OUT
R2
R1
R1
R2
TONE-H(PIN:8,32)
C1
TONE-H(PIN:8,32)
C1
R1
1
(dB)
GV = ±20 Log 1 +
×
2
R2
1 +
( (2π × f × C1× R2))
1/
Table.a-1 : Internal resistance in each Gain.
Gain
±14dB
±12dB
±10dB
±8dB
±6dB
±4dB
±2dB
±0dB
R1
R2
22kΩ
4kΩ
20.2kΩ
18.4kΩ
16.1kΩ
13.3kΩ
9.8kΩ
5.5kΩ
0Ω
5.8kΩ
7.6kΩ
9.9kΩ
12.7kΩ
16.2kΩ
20.5kΩ
26kΩ
– 23 –
NJW1201A
■ APPLICATION NOTE
[4] Sound Mode
Filter terminal
for Sound Mode
SurTC (pin.26)
C21
Sound-Output Ach
Sound-Intput Ach
Sound
Filter
A
*Hi
*Lo
*ealaRebirth
*eala
Sound-Intput Bch
Sound-Output Bch
SRFil (pin.27)
C22
Filter terminal
for Sound Mode
There are 3 sound modes in NJW120A.
1) ealaRebirth
2) eala
:This is a sound effect, this is suitable for compressed Audio.
:This is a comfortable surround that makes much of sound location.
3) ealaRebirth & eala :This is a sound effect that be suitable for various music.
These sound modes have 2-level gain effects.
Sound modes and 2-level gain are switched by I2C command.
And, Frequency effects of sound mode depends on C21,C22.
Please choose your suitable value of C21,C22 for Audio set.
Recommendation is C21=68nF, C22=4.7nF.
Frequency Response of Sound mode is shown in next page.
Regarding Pop noise reduction when sound mode and sound gain switched
NJW1201A doesn’t cover about this.
*Notice: About NJW1201
Regarding Pop noise reduction when sound mode and sound gain switched,
*Sound mode swtiched: Pop noise reduction is cared by capacitor pin.26
*Sound gain switched: Pop noise reduction is not cared
– 24 –
NJW1201A
Gain vs Frequency (ealaRebirth)
Gain vs Frequency (ealaRebirth)
V+=9V, Vin(Ach)=0.1Vrms, Vo(Ach), Ta=25oC
V+=9V, Vin(Ach)=0.1Vrms, Vo(Ach), Ta=25oC
10
5
10
5
C21:Sweep , C22=4.7nF
47n,68n,100n,150nF
C21:68nF , C22=Sweep
10nF
6.8nF
0
0
3.3nF
4.7nF
-5
-5
10
100
1000
10000
100000
10
100
1000
10000
100000
Frequency (Hz)
Frequency (Hz)
Gain vs Frequency (eala)
Gain vs Frequency (eala)
V+=9V, Vin(Ach)=0.1Vrms, Vo(Ach), Ta=25oC
V+=9V, Vin(Ach)=0.1Vrms, Vo(Ach), Ta=25oC
10
5
10
5
C21:Sweep , C22=4.7nF
C21:68nF , C22=Sweep
150nF
100nF
4.7nF
3.3nF
0
0
47nF
68nF
6.8nF
10nF
-5
-5
10
100
1000
10000
100000
10
100
1000
10000
100000
Frequency (Hz)
Frequency (Hz)
Gain vs Frequency (eala+ealaRebirth)
Gain vs Frequency (eala+ealaRebirth)
V+=9V, Vin(Ach)=0.1Vrms, Vo(Ach), Ta=25oC
10
V+=9V, Vin(Ach)=0.1Vrms, Vo(Ach), Ta=25oC
10
C21:Sweep , C22=4.7nF
C21:68nF , C22=Sweep
150nF
100nF
4.7nF
3.3nF
5
5
0
0
10nF
47nF
6.8nF
68nF
-5
-5
10
100
1000
10000
100000
10
100
1000
10000
100000
Frequency (Hz)
Frequency (Hz)
– 25 –
NJW1201A
■ APPLICATION NOTE
[5] Dynamic Bass Boost (DBB)
5-1. Block diagram of DBB
INT(pin.25)
Sound-Intput Ach
Sound-Output Ach
Sound-Output Bch
EXT Filter (inverting type)
AGC
A
3-levels
A=1, 0.6, 0.33
Normally
Gain=1
Sound-Intput Bch
Dynamic Bass Boost (DBB) is a system that changes boost gain by changing of input level.
The boost gain has 3-levels, this is controlled by I2C.
AGC circuit changes the boost gain by detecting the input signal.
5-2.Setting of EXT Filter
The Frequency Response of DBB can be changed in EXT Filter.
EXT Filter is composed of BPF1(pin.13), BPF2(pin.14), BPF3(pin.15).
Below are examples of filter structure.
a) BPF
EXT Filter (inverting type)
R3
GV = 20log
fc =
2R2
1
2πC
(
R1 // R2 R3
)
13
14
15
1
R3
Q =
DC Cut
R2
R3
C
2 R // R2
1
C
R1
– 26 –
NJW1201A
b) LPF (-6dB/Oct)
EXT Filter (inverting type)
R2
R1
GV = 20log
1
fc =
2πCR2
13
14
15
R2
C
R1
c) LPF (-12dB/Oct)
EXT Filter (inverting type)
R3
R1
GV = 20log
fc =
1
2π C1C2R2R3
13
14
15
C2
R3
R2
R1
C1
5-3. DBB INT
external Capacitor connected to pin.25 decides Attack/Recovery time of DBB.
Recovery time (s) = 0.5 X C(uF)
(test condition : Vin(Ach+Bch)=2Vrms, Sense Level = 4 )
Recovery time (C=4.7uF)
Vin=2 → 0.2Vrms f=70Hz
– 27 –
NJW1201A
5-4. Detective level in DBB
Detective level of input signal in DBB is control by I2C or external resistor (Rsense:pin.24).
In case of without external resistor, Detective level is shown in below Fig5-4-1, 5-4-2.
Fig5-4-1 is Output Voltage vs Input Voltage when detective level is changed (Gain setting = 3).
Fig5-4-2 is Output Voltage vs Input Voltage when Gain setting is changed (Sense level = 4).
These figures don’t include the external Resistor (Rsense:pin.24).
(DBB SenseLevel sw eep)
(DBB GainLevel sw eep)
Output vs Input Voltage
Output vs Input Voltage
V+=9V, DBB=GAIN3, Vin(A+Bch), f=70Hz
V+=9V, Sense=Sense4, Vin(A+Bch), f=70Hz
Vout=Ach, Ta=25oC
Vout=Ach, Ta=25oC
10
1
10
1
Sense1
Sense2
Gain3
Sense3
Sense4
0.1
0.1
Gain2
Gain1
0.01
0.001
0.01
0.001
0.001
0.01
0.1
1
10
0.001
0.01
0.1
1
10
Input Voltage (Vrms)
Input Voltage (Vrms)
Regarding Detective Level (sense level), internal resistance is switched by I2C.
This resistance decides detective level.
1. Sense 1 = 36kΩ
2. Sense 2 = 9kΩ
3. Sense 3 = 5.2kΩ
4. Sense 4 = 3.6kΩ
And, if connect the external resistor (Rsense:pin.24), Detected level is shown in below equations.
1. Sense 1 = 36kΩ // Rsense
2. Sense 2 = 9kΩ // Rsense
3. Sense 3 = 5.2kΩ // Rsense
4. Sense 4 = 3.6kΩ // Rsense
– 28 –
NJW1201A
■ APPLICATION NOTE
[6] 2nd Volume
2nd Volume range is 0dB to –28dB with –2dB steps.
Frequency response of 2nd Volume depends on capacitor connected to VOL2CAP(pin.16,23).
It shows frequency response of 2nd Volume in Fing.6-1(2nd Volume=-28dB), Fig6-2(2ndVolume=MUTE).
To flat the frequency response, please choose bigger capacitor.
Gain vs Frequency (2nd Volume)
Gain vs Frequency (2nd Volume)
V+=9V, 2ndVOL=-28dB, Vin=1Vrms, Ta=25oC
V+=9V, 2ndVOL=MUTE, Vin=1Vrms, Ta=25oC
0
-10
-20
-30
-40
-50
-60
0
-20
2ndVOL=MUTE
C=1uF
2ndVOL=MUTE
C=1uF
2ndVOL=MUTE
C=4.7uF
-40
2ndVOL=MUTE
C=4.7uF
-60
2ndVOL=MUTE
C=10uF
2ndVOL=MUTE
C=10uF
-80
1st&2ndVOL=MUTE
-100
-120
10
100
1000
10000
100000
10
100
1000
10000
100000
Frequency (Hz)
Frequency (Hz)
Fig.6-1
Fig.6-2
But, when power turns on, it takes some charge time to VOL2CAP(pin.16.23)
If 2nd Volume is switched on charge, Pop noise occurs.
The cause of pop noise is gap of Voltage between Vref and VOL2CAP.
To be fast the charge time, connect smaller capacitor to VOL2CAP.
DC Voltage vs time (2nd Volume)
DC Voltage vs time (2nd Volume)
(2nd Volume)
DC Voltage vs time
V+=0 ---> 9V, Ta=25oC
V+=0 ---> 9V, Ta=25oC
V+=0 ---> 9V, Ta=25oC
8
7
6
5
4
3
2
1
0
8
7
6
5
4
3
2
1
0
8
7
6
5
4
3
2
1
0
VOL2CAP=10uF
VOL2CAP=1uF
VOL2CAP=4.7uF
Vref
Vref
Vref
Vdc at VOL2CAP
Vdc at VOL2CAP
Vdc at VOL2CAP
-0.5
0
0.5
1
1.5
2
-0.5
0
0.5
1
1.5
2
-0.5
0
0.5
1
1.5
2
time (s)
time (s)
time (s)
Fig.6-3.VOL2CAP=1uF
Fig.6-4.VOL2CAP=4.7uF
Fig.6-4.VOL2CAP=10uF
– 29 –
NJW1201A
[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.
– 30 –
相关型号：
SI9130DB
5- and 3.3-V Step-Down Synchronous ConvertersWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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VISHAY
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SMBus Multi-Output Power-Supply ControllerWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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SI9136_11
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SI9130LG-T1-E3
Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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Pin-Programmable Dual Controller - Portable PCsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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SI9137
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SI9137DB
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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SI9137LG
Multi-Output, Sequence Selectable Power-Supply Controller for Mobile ApplicationsWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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SI9122E
500-kHz Half-Bridge DC/DC Controller with Integrated Secondary Synchronous Rectification DriversWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
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