NJW1240 [NJRC]
5Vrms Ground Referenced 6-Channel Line Amplifier; 5VRMS接地参考6声道线路放大器
| 型号： | NJW1240 |
| 厂家： | 
NEW JAPAN RADIO |
| 描述： | 5Vrms Ground Referenced 6-Channel Line Amplifier |
| 文件： | 总12页 (文件大小：235K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NJW1240
5Vrms Ground Referenced 6-Channel Line Amplifier
● PACKAGE OUTLINE
GENERAL DESCRIPTION
The NJW1240 is a 6-channel audio line amplifier for High
Voltage Pre-out of Car AV system. It can swing
5Vrms(14.1V peak-to peak) singal at 8V opearating voltage
because of including the charge pump circuit.
Ground-referenced outputs eliminate output coupling
capacitor. The pop noise suppression circuit reduces a pop
noise at the power-on and power-off.
NJW1240V
FEATURES
● Operating Voltage
● Operating Current
+6 to +10V
IDD=15mA typ.
at V+=8V, RL=47kΩ, No Signal
5.0Vrms min.
● Maximum Output Voltage
● Low Distortion
0.0008% typ
● Low Output Noise
-102dB typ.
● Output Coupling Capacitor-less
● External Synchronizing
● Pop Noise Suppression Circuit
● External Mute
Divide-by-2
● Gain Select
+6dB/+8.3dB
● RF Immunity OpAmp tolerant to FR noise. (ex. mobile phone)
● Bi-CMOS Technology
● Package Outline
SSOP32
BLOCK DIAGRAM
V+
IN1
IN2
IN3
IN4
IN5
IN6
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
V-
V+
Mute Tr
Mute Tr
Mute Tr
Mute Tr
Mute Tr
Mute Tr
V-
V+
V-
V+
V-
V+
V-
V+
V-
Pop Noise
Gain
Select
Suppression
Charge
Pump
V-
V+ Detector
Ver. 1.1E
NJW1240
PIN CONFIGURATION
No.
1
Symbol
IN1
Function
Input 1
No.
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Symbol
NC
Function
No Connect
Input 2
2
IN2
FB
V- Power Supply External Setting
Flying Capacitor Positive Terminal
No Connect
Input 3
3
IN3
CP
Input 4
4
IN4
NC
Input 5
5
IN5
NC
No Connect
Ground
Flying Capacitor Negative Terminal
Input 6
6
IN6
GND
CN
7
MUTE
GAIN
V- IN
V- OUT
RegCNT
NC
MUTE / Pop Noise Suppression
Gain Select
8
MUTE_TC Pop Noise Suppression Capacitor
9
V- Power Input
V- Power Output
V- Power Control
No Connect
V+ A
GND
V+ Power Supply for Analog
Ground
10
11
12
13
14
15
16
Output 6
OUT6
OUT5
OUT4
OUT3
OUT2
OUT1
Output 5
Output 4
NC
No Connect
Output 3
CLK
External Clock Input
V+ Power Supply for Regulator
No Connect
V+ Reg
NC
Output 2
Output 1
– 2 –
NJW1240
ABSOLUTE MAXIMUM RATING (Ta=25°C)
PARAMETER
Supply Voltage
SYMBOL
RATING
10.5
UNIT
V
V+
CLK Terminal Voltage
VCLK
VRegCNT
VFB
-0.3～+6
-0.3～+6
(V-OUT)+6
V+ +0.3
V
V- Power Supply Control Voltage
FB Terminal Voltager
V
V
Maximum Input Voltage
VIN
V
Power Dissipation
PD
905(Note1)
-40 ~ +85
-40 ~ +125
mW
°C
°C
Operating Temperature Range
Topr
Storage Temperature Range
Tstg
(Note1) EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 2layer, FR-4) mounting
● RECOMMENDED OPERATING CONDITIONS
(Ta=25°C unless otherwise specified)
PARAMETER
Operating Voltage
External Clock Input Range
External Clock Duty Input Range
SYMBOL
V+
TEST CONDITION
MIN.
6
TYP.
8
-
MAX.
10
UNIT
V
(Note2)
fCLK
150
45
1250
80
kHz
%
DUTY
-
(Note2) The regulator for V- power supply operates by the half of fCLK
.
ELECTRICAL CHARACTERISTICS
(Ta=25°C, V+=8V, f=1kHz, Vin=0dBV, RL=47kΩ, GAIN=Low, MUTE=High, RegCNT=High unless otherwise specified)
PARAMETER
Operating Current
SYMBOL
IDD
TEST CONDITION
No signal
MIN.
TYP.
12
MAX.
20
UNIT
mA
-
5.5
7.8
5
6.0
8.3
-
6.5
8.8
-
Voltage Gain1
GV1
dB
Voltage Gain2
GV2
GAIN=High
THD=1%
dB
Maximum Output Voltage
Mute Level
VOMAX
VMUTE
Vrms
MUTE=Low
-
-100
-80
dB
-102
(7.94)
dBV
(µV)
Output Noise Voltage
VNO
Rg=0Ω, A=Weighted
-
-
Total Harmonic Distortion
Channel Separation
THD
CS
BW:400Hz-22kHz
Rg=600Ω
-
80
-
0.0008
-
-
%
-
300
-
dB
fOSC
VOS
fCLK=No signal
Rg=0Ω
-
kxHz
mV
Internal Oscillating Frequency
Output Offset Voltage
-
8
CONTROL CHARACTERISTICS
(Ta=25°C, V+=8V, f=1kHz, Vin=0dBV, RL=47kΩ unless otherwise specified)
PARAMETER
Mute Terminal High
SYMBOL
MuteH
MuteL
GainH
GainL
TEST CONDITION
MUTE OFF
MIN.
2.3
0
TYP.
MAX.
V+
UNIT
-
-
-
-
-
-
V
V
V
V
V
V
MUTE ON
Gv=8.3dB
Gv=6dB
0.7
V+
Mute Terminal Low
Gain Terminal High
Gain Terminal Low
CLK Terminal High
CLK Terminal Low
2.3
0
0.7
5.5
0.7
CLKH
2.3
0
CLKL
– 3 –
NJW1240
TERMINAL DESCRIPTION
Terminal SYMBOL
FUNCTION
EQUIVALENT CIRCUIT
VOLTAGE
V+A
V+A
V+A
1
2
3
4
5
6
IN1
IN2
IN3
IN4
IN5
IN6
INPUT1
INPUT2
INPUT3
INPUT4
INPUT5
INPUT6
10kΩ
50kΩ
0V
1pF
V-IN
V-IN
V+A
V+A
MUTE/Pop Noise
Suppression
7
8
MUTE
GAIN
20kΩ
0V
0V
Gain Select
100kΩ
1pF
V-IN
Reg(5V)
500kΩ
100Ω
11
RegCNT
V- Power Control
500kΩ
Reg(5V)
Reg(5V)
100Ω
14
18
CLK
External Clock Input
0V
1MΩ
Reg(5V)
100Ω
1kΩ
V- Power Supply
External Setting
FB
-
2pF
V-OUT
– 4 –
NJW1240
TERMINAL DESCRIPTION
Terminal
SYMBOL
FUNCTION
EQUIVALENT CIRCUIT
VOLTAGE
V+Reg
Flying Capacitor
Positive Terminal
19
CP
-
V-OUT
Flying Capacitor
23
24
CN
-
Negative Terminal
V-OUT
V-OUT
V+A
V+A
V+A
Pop Noise
Suppression
Capacitor
100kΩ
MUTE_TC
0V
0V
50kΩ 1MΩ
V-IN
V-IN
V-IN
V+A
V+A
V+A
27
28
29
30
31
32
OUT6
OUT5
OUT4
OUT3
OUT2
OUT1
Output6
Output5
Output4
Output3
Output2
Output1
200Ω
200Ω
50Ω
FB
V-IN
V-IN
V-IN
– 5 –
NJW1240
TEST CIRCUIT (IDD)
IN1
1
OUT1
32
C1=1uF
C2=1uF
C3=1uF
C4=1uF
C5=1uF
C6=1uF
Mute
Mute
Mute
Mute
Mute
Mute
RL=47kΩ
RL=47kΩ
RL=47kΩ
RL=47kΩ
RL=47kΩ
RL=47kΩ
50kΩ
50kΩ
50kΩ
50kΩ
50kΩ
50kΩ
IN2
2
OUT2
31
IN3
3
OUT3
30
IN4
4
OUT4
29
IN5
5
OUT5
28
IN6
6
OUT6
27
V+
MUTE
GND
26
Pop Noise
Suppression
7
100kΩ
100kΩ
V+
25
A
V+
V+
GAIN
Gain Select
6dB/8dB
8
+
C12=10nF
C19=10uF
V-IN
MUTE _TC
Bias
9
24
V+
V-OUT
C11=1uF
CN
A
C8=1uF
10
23
RegCNT
GND
22
V+
11
Negative
R2=680kΩ
Voltage
NC
NC
21
C10=1uF
12
Regulator
NC
NC
13
20
CLK
14
CP
19
V+Reg
FB
V-OUT
15
18
C9=10nF
NC
NC
16
17
TEST CIRCUIT (Gv, VOMAX, THD, VMUTE
)
IN1
1
OUT1
32
C1=1uF
Mute
Mute
Mute
Mute
Mute
Mute
RL=47kΩ
V
50kΩ
IN2
2
OUT2
31
C2=1uF
RL=47kΩ
RL=47kΩ
RL=47kΩ
RL=47kΩ
RL=47kΩ
50kΩ
IN3
3
OUT3
30
C3=1uF
50kΩ
IN4
4
OUT4
29
C4=1uF
50kΩ
IN5
5
OUT5
28
C5=1uF
50kΩ
IN6
6
OUT6
27
C6=1uF
50kΩ
V+
MUTE
GND
26
Pop Noise
Suppression
7
100kΩ
V+
25
A
V+
V+
GAIN
Gain Select
6dB/8dB
8
+
100kΩ
C12=10nF
C19=10uF
V-IN
MUTE _TC
Bias
9
24
V-OUT
C11=1uF
CN
C8=1uF
10
23
RegCNT
GND
22
V+
11
Negative
R2=680kΩ
Voltage
NC
NC
21
C10=1uF
12
Regulator
NC
NC
13
20
CLK
CP
14
19
V+Reg
FB
V-OUT
15
18
C9=10nF
NC
NC
16
17
– 6 –
NJW1240
TEST CIRCUIT (VNO
)
IN1
1
OUT1
32
C1=1uF
C2=1uF
C3=1uF
C4=1uF
C5=1uF
C6=1uF
Mute
Mute
Mute
Mute
Mute
Mute
RL=47kΩ
RL=47kΩ
RL=47kΩ
RL=47kΩ
RL=47kΩ
RL=47kΩ
V
50kΩ
50kΩ
50kΩ
50kΩ
50kΩ
50kΩ
IN2
2
OUT2
31
IN3
3
OUT3
30
IN4
4
OUT4
29
IN5
5
OUT5
28
IN6
6
OUT6
27
V+
MUTE
GND
26
Pop Noise
Suppression
7
100kΩ
100kΩ
V+
25
A
V+
V+
GAIN
Gain Select
6dB/8dB
8
+
C12=10nF
C19=10uF
V-IN
MUTE _TC
Bias
9
24
V-OUT
C11=1uF
CN
23
C8=1uF
10
RegCNT
GND
22
V+
11
Negative
R2=680kΩ
Voltage
NC
NC
21
C10=1uF
12
Regulator
NC
NC
13
20
CLK
14
CP
19
V+Reg
FB
V-OUT
15
18
C9=10nF
NC
NC
16
17
TEST CIRCUIT (CS)
IN1
1
OUT1
32
C1=1uF
Rg=600Ω
C2=1uF
Mute
RL=47kΩ
RL=47kΩ
RL=47kΩ
RL=47kΩ
RL=47kΩ
RL=47kΩ
V
50kΩ
IN2
2
OUT2
31
Mute
Mute
Mute
Mute
Mute
Rg=600Ω
C3=1uF
50kΩ
50kΩ
50kΩ
50kΩ
50kΩ
IN3
3
OUT3
30
Rg=600Ω
C4=1uF
IN4
4
OUT4
29
Rg=600Ω
C5=1uF
Rg=600Ω
C6=1uF
IN5
5
OUT5
28
IN6
6
OUT6
27
Rg=600Ω
V+
MUTE
GND
26
Pop Noise
Suppression
7
100kΩ
100kΩ
V+
25
A
V+
V+
GAIN
Gain Select
6dB/8dB
8
+
C12=10nF
C19=10uF
V-IN
MUTE _TC
9
Bias
24
V-OUT
C11=1uF
CN
C8=1uF
10
23
RegCNT
GND
V+
11
22
Negative
R2=680kΩ
Voltage
NC
NC
21
C10=1uF
12
Regulator
NC
NC
13
20
CLK
14
CP
19
V+Reg
FB
18
V-OUT
15
C9=10nF
NC
NC
16
17
– 7 –
NJW1240
APPLICATION CIRCUIT
IN1
1
OUT1
32
C1=1uF
Mute
Mute
Mute
Mute
Mute
Mute
RL=47kΩ
RL=47kΩ
RL=47kΩ
RL=47kΩ
RL=47kΩ
RL=47kΩ
50kΩ
IN2
2
OUT2
31
C2=1uF
C3=1uF
C4=1uF
C5=1uF
50kΩ
50kΩ
50kΩ
50kΩ
50kΩ
IN3
3
OUT3
30
IN4
4
OUT4
29
IN5
5
OUT5
28
IN6
6
OUT6
27
C6=1uF
3V~V+
MUTE
GND
26
Pop Noise
7
Suppression
100kΩ
100kΩ
V+A
V+
V+
GAIN
Gain Select
6dB/8dB
8
25
C12=1uF
+C19=100uF
R3=1kΩ
V-IN
MUTE _TC
24
C7=1uF
9
Bias
R1=10Ω
C8=1uF
V-OUT
10
RegCNT
C11=1uF
CN
23
GND
V+
11
22
Negative
R2=680kΩ
Voltage
NC
12
NC
21
C10=1uF
Regulator
NC
NC
13
20
CLK
14
CP
19
V+Reg
FB
18
*Connect to V-OUT[10pin]
15
C9=1uF
NC
NC
16
17
– 8 –
NJW1240
TYPICAL CHARACTERISTICS
Supply Current vs Supply Voltage
RL=NoLoad , MUTE=H , GAIN=L
Supply Current vs Temperature
V+=8V , RL=NoLoad , MUTE=H , GAIN=L
20
15
10
5
20
15
10
5
Ta=85oC
Ta=25oC
Ta=-40oC
0
0
0
1
2
3
4
5
6
7
8
9
10 11
-50
-25
0
25
50
75
100
125
Supply Voltage[V]
Temperature[oC]
Output DC Offset vs Temperature
V+=8V , Vin=NoSignal , RL=47kΩ
MUTE=H , GAIN=L
VoltageGain vs Frequency
V+=8V , Vin=0dBV , RL=47kΩ , MUTE=H
5
4
15
10
5
3
CH3
CH4
CH5
GAIN=H
2
Ta=-40,25,85oC
1
0
-1
-2
-3
-4
-5
CH1
CH2
CH6
GAIN=L
Ta=-40,25,85oC
0
-50
-25
0
25
50
75
100
125
10
100
1000
10000
100000
Temperature[oC]
Frequency[Hz]
MuteLevel vs Frequency
OutputNoisel vs Temperature
V+=8V, Rg=0Ω , RL=47kΩ , MUTE=H , GAIN=L
Filter=A-w eighted
V+=8V, RL=47kΩ , MUTE=L , GAIN=L
Filter=Bandpass
0
0
-20
-20
-40
-60
-40
-60
Ta=85oC
-80
-80
Ta=25oC
-100
-120
-100
Ta=-40oC
10000 100000
-120
10
100
1000
-50
-25
0
25
50
75
100
Freauency[Hz]
Temperature[oC]
– 9 –
NJW1240
TYPICAL CHARACTERISTICS
ChannelSeparation vs Frequency
ChannelSeparation vs Frequency
V+=8V, Vin=0dBV , Input=IN1,2,4,5,6 , RL=47kΩ
MUTE=H , GAIN=L , Ta=25oC , Filter=Bandpass
measure=OUT3 , CS=Vin*Gv/ Measure
V+=8V, Vin=0dBV , Input=IN1,2,4,5,6 , Rg=620Ω
RL=47kΩ , MUTE=H , GAIN=L , Filter=Bandpass
measure=OUT3 , CS=Vin*Gv/ Measure
120
100
80
60
40
20
0
120
100
80
60
40
20
0
Ta=-40oC
Ta=25oC
Rg=0Ω
Ta=85oC
Rg=620Ω
10
100
1000
10000
100000
10
100
1000
Freauency[Hz]
10000
100000
Freauency[Hz]
THD+N vs Output Voltage
THD+N vs Output Voltage
V+=8V , f=1kHz , RL=47kΩ , MUTE=H , GAIN=L
V+=8V , RL=47kΩ , MUTE=H , GAIN=L , Ta=25oC
Filter=400Hz to 22kHz
Filter=22Hz to 22kHz
10
1
10
1
0.1
0.1
0.01
0.001
0.01
0.001
f=10kHz
Ta=-40oC
f=100Hz,1kHz
1
Ta=25,85oC
0.0001
0.0001
0.01
0.1
1
10
0.01
0.1
10
Output Voltage[Vrms]
Output Voltage[Vrms]
PSRR vs Frequency
THD+N vs Frequency
V+=8V, Vripple=100mVrms , RL=47kΩ , MUTE=H
V+=8V , Vin=0dBV , RL=47kΩ , MUTE=H , GAIN=L
GAIN=L , Ta=25oC , Filter=Bandpass
Ta=25oC , Filter=22Hz to 80kHz
80
70
60
50
40
30
20
10
0
10
1
0.1
0.01
0.001
0.0001
10
100
1000
10000
100000
10
100
1000
10000
100000
Frequency[Hz]
Freauency[Hz]
– 10 –
NJW1240
TYPICAL CHARACTERISTICS
OutputNoise vs fosc
THD+N vs f osc
V+=8V, Rg=0Ω , RL=47kΩ , MUTE=H , GAIN=L
V+=8V, Vin=0dBV , f=1kHz , RL=47kΩ , MUTE=H
Ta=25oC , Filter=A-Weighted
GAIN=L , Ta=25oC , Filter=400Hz to 22kHz
0.1
0
-20
0.01
0.001
-40
-60
-80
-100
-120
0.0001
0
200
400
600
800
1000
1200
0
200
400
600
800
1000
1200
fosc[kHz]
fosc[kHz]
MaximumOutputVoltage vs fosc
MaximumOutputVoltage vs LoadResistance
V+=8V, f=1kHz , Input=IN1~IN6 , RL=47kΩ
MUTE=H , GAIN=L , Ta=25oC , THD+N=1%
Filter=400Hz to 22kHz
V+=8V, f=1kHz , Input=IN1~IN6 , MUTE=H , GAIN=L
fosc=Internal , Ta=25oC , THD+N=1%
Filter=400Hz to 22kHz
8
7
6
5
4
3
2
6
5.5
5
V+=10V
V+=8V
V+=6V
4.5
4
0
200
400
600
800
1000
1200
1
10
100
fosc[kHz]
RoadResistance[kΩ]
Voltage Gain vs GAIN Terminal Voltage
MuteLevel vs MUTETerminal Voltage
V+=8V, Vin=0dBV , f=1kHz , RL=47kΩ , MUTE=H
V+=8V, Vin=0dBV , f=1kHz , RL=47kΩ , GAIN=L
Ta=25oC
Ta=25oC
20
0
10
9
-20
-40
-60
-80
8
H->L
L->H
7
H->L
1
L->H
6
5
-100
0
0.5
1.5
2
2.5
3
0
0.5
1
1.5
2
2.5
3
GAIN Teaminal Voltage[V]
MUTETerminal Voltage[V]
– 11 –
NJW1240
[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.
– 12 –
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