NJM2702V [NJRC]
3D SURROUND AUDIO PROCESSOR; 3D环绕声音频处理器
| 型号： | NJM2702V |
| 厂家： | 
NEW JAPAN RADIO |
| 描述： | 3D SURROUND AUDIO PROCESSOR |
| 文件： | 总10页 (文件大小：153K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NJM2702
3D SURROUND AUDIO PROCESSOR
■ GENERAL DESCRIPTION
■ PACKAGE OUTLINE
The NJM2702 is a 3D surround audio processor
regenerating the 3D surround sound with only two
speakers.
The NJM2702 is suitable for audio applications, which are
speaker system for mini components, CD radio cassette,
multimedia speaker systems, TV and others.
NJM2702D
NJM2702M
■ FEATURES
■ Operating Voltage
■ Stereo mode
• Stable center image with natural sound field
• High quality Surround
(4.7 to 13V)
NJM2702V
• Free speaker interval
■ Surround control
■ Internal Mode Control Switch
■ Bipolar Technology
■ Package Outline
DIP14, DMP14, SSOP10
■ BLOCK DIAGRAM
+
+
LOUT
LIN
3D
FILTER
-
ROUT
RIN
+
Bypass
STEREO MODE
- 1 -
NJM2702
■ABSOLUTE MAXIMUM RATING (Ta=25°C)
PARAMETER
Supply Voltage
SYMBOL
V+
RATINGS
14
UNIT
V
(DIP14)
500
Power Dissipation
PD
(DMP14) 350
(SSOP10) 250
mW
Operating Temperature Range
Storage Temperature Range
Topr
Tstg
-40 to +85
°C
°C
-40 to +125
■OPERATING VOLTAGE
PARAMETER SYMBOL
TEST CONDITION
MIN.
4.7
TYP. MAX.
12.0 13.0
UNIT
V
Operating
V+
-
Voltage
■ELECTRICAL CHARACTERISTICS (V+=12V,Ta=25°C unless otherwise specified)
TEST CONDITION
PARAMETER SYMBOL
MIN.
TYP. MAX.
UNIT
mA
INPUT
OUTPUT
MODE
VR
L
R
0
Operating
Current
ICC
0
0
-
-
BYPASS
Stereo
-
3.0
3.0
6.0
6.0
9.0
9.0
No Signal
0
MAX
■AC CHARACTERISTICS
(V+=12V,Ta=25°C, VIN=-10dBV(316mVrms), f=1kHz,RL=4.7kΩ, unless otherwise specified)
TEST CONDITION
PARAMETER SYMBOL
MIN.
TYP. MAX.
UNIT
INPUT
OUTPUT
MODE
VR
-
L
R
Maximum
VIM
9.9
(3.1)
11.9
-
f=1kHz
T.H.D.=3%
VIN
0
0
VIN
L
R
BYPASS
Input Voltage
(3.9)
dBV
(Vrms)
-3.8
(0.6)
-1.8
-
f=100Hz
T.H.D.=3%
VIN
0
0
VIN
L
R
MAX
Stereo
BYPASS
Stereo
(0.8)
Output Noise
VNO
Rg=0
Ω
L
R
-112
(2.5)
-106
(5.0)
0
0
0
0
-
-
A-Weighted
dBV
(µVrms)
Rg=0
Ω
L
R
-100
(10)
-94
(20)
MAX
-
A-Weighted
Total
Harmonic
Distortion
T.H.D
VIN
0
0
VIN
L
R
BYPASS
Stereo
-
MAX
-
-
-
0.005 0.01
f=1kHz
%
VIN
0
0
VIN
L
R
f=1kHz
Vin=-20dBV
0.1
0.0
0.5
1.0
Bypass Gain
GVBYP
VIN
0
0
VIN
L
R
f=1kHz
BYPASS
-1.0
dB
- 2 -
NJM2702
■AC CHARACTERISTICS
(V+=12V,Ta=25°C, VIN=-10dBV(316mVrms), f=1kHz,RL=4.7kΩ, unless otherwise specified)
TEST CONDITION
PARAMETER SYMBOL
MIN.
TYP. MAX.
UNIT
INPUT
OUTPUT
MODE
Stereo
VR
L
R
Surround Gain
GVSUR
f=100Hz
Vin=-20dBV
VIN
0
0
VIN
L
R
MAX
10.7
8.4
12.7
10.4
5.6
14.7
12.4
7.6
f=100Hz
0
VIN
0
L
R
MAX
MIN
dB
Stereo
Stereo
Vin=-20dBV VIN
f=100Hz
Vin=-20dBV
VIN
0
0
VIN
L
R
3.6
■CONTROL CHARACTERISTICS (V+=12V,Ta=25°C unless otherwise specified)
TEST CONDITION
PARAMETER SYMBOL
INPUT
MIN.
TYP. MAX.
UNIT
V
OUTPUT
MODE
VR
L
R
V =
High Level
IN
2.0
0.0
-
-
V+
Mode Select
Control
Voltage
-
-
-
-
-
-
-
-
VMODE
V =
IN
0.7
-
-
LowLevel
■MODE SWITCH
MODE
SW
L
H
NOTES
Input Through
Surround Mode (Stereo Input)
BYPASS
Stereo
- 3 -
NJM2702
■TERMINAL DESCRIPTION
PIN NO.
SYMBOL
FUNCTION
EQUIVALENT CIRCUIT
VOLTAGE
DIP14
SSOP10
DMP14
V+
V+
31.6K
400
1
1
FIL
Filter Input
V+/2
2
4
8
-
NC
Test pin
10
V+
V+
V+
5K
3
2
VOL
Surround VR
V+/2
V+
V+
V+
Reference Voltage
Input
5
3
VREFIN
V+/2
- 4 -
NJM2702
PIN NO.
SYMBOL
FUNCTION
EQUIVALENT CIRCUIT
VOLTAGE
DIP14
SSOP10
DMP14
6
4
V+
Power Supply
V+
0V
0V
7
5
GND
GND
V+
V+
V+
9
6
SW
Mode Control Switch
700
V+
V+
11
12
7
8
ROUT
LOUT
Rch Output
Lch Output
V+/2
- 5 -
NJM2702
PIN NO.
SYMBOL
FUNCTION
EQUIVALENT CIRCUIT
VOLTAGE
DIP14
SSOP10
DMP14
V+
V+
V+
13
14
9
10
RIN
LIN
Rch Input
Lch Input
V+/2
700
VREF
- 6 -
NJM2702
■APPLICATION CIRCUIT
14
13
12
11
10
9
8
10
9
6
8
7
2
2
1
3
4
5
6
7
1
3
4
5
50K
C2
50KB
C2
10uF/50V
10uF/50V
Surround VR
Surround VR
Parts No.
Value
10kΩ
Tolerance
5%
Parts No.
Value
1µF
Tolerance
20%
R1
C1
C2,C5,C6,C7,C8,C9
C3
C4
0.0047
10
µ
F
5%
20%
100
µF
20%
µ
F
- 7 -
NJM2702
■TYPICAL CHARACTERISTICS
Supply Current vs Supply Voltage
Supply Current vs Ambient Temperature
V+=12V
V+=1 to 18V Ta=25degrees
7
6
5
4
3
2
1
0
6
5.5
5
STEREO
BYPASS
STEREO
BYPASS
4.5
4
0
5
10
15
20
-60
-40
-20
0
20
40
60
80
100
Ambient Temperature [degrees]
Supply Voltage [V]
Maximum Input Voltage vs Supply Voltage
Maximum Input Voltage vs Supply Voltage
(BYPASS)
Vin=Lch Vout=Lch f=1KHz RL=47Kohm
Rg=25ohm Ta=25degrees
(STEREO)
Vin=Lch Vout=Lch f=100Hz RL=47Kohm
Rg=25ohm Ta=25degrees
15
10
5
5
0
-5
-10
-15
-20
0
-5
2
4
6
8
10
12
14
2
4
6
8
10
12
14
Supply Voltage [V]
Supply Voltage [V]
Output Noise vs Ambient Temperature
V+=12V Vin=GND Vout=Lch
Output Noise vs Ambient Temperature
V+=12V Vin=GND Vout=Rch
-90
-95
-90
-95
STEREO
STEREO
-100
-105
-110
-115
-120
-100
-105
-110
-115
-120
BYPASS
BYPASS
-60
-40
-20
0
20
40
60
80
100
-60
-40
-20
0
20
40
60
80
100
Ambient Temperature [degrees]
Ambient Temperature [deg]
- 8 -
NJM2702
■TYPICAL CHARACTERISTICS
Total Harmonic Distortion vs Input Voltage
Total Harmonic Distortion vs Input Voltage
(BYPASS)
V+=12V f=100Hz RL=47Kohm
Rg=25ohm BW=10 to 80KHz
(BYPASS)
V+=12V f=1KHz RL=47Kohm
Rg=25ohm BW=10 to 80KHz
10
10
1
1
Ta=85deg
Ta=25deg
Ta=-40deg
Ta=85deg
Ta=25deg
0.1
0.1
Ta=-40deg
0.01
0.001
0.01
0.001
-50
-40
-30
-20
-10
0
10
20
-50
-40
-30
-20
-10
0
10
20
Input Voltage [dBV]
Input Voltage [dBV]
Total Harmonic Distortion vs Input Voltage
Total Harmonic Distortion vs Input Voltage
(STEREO)
V+=12V f=100Hz RL=47Kohm
Rg=25ohm BW=10 to 80KHz
(STEREO)
V+=12V f=1KHz RL=47Kohm
Rg=25ohm BW=10 to 80KHz
10
10
1
1
Ta=85deg
Ta=25deg
Ta=85deg
Ta=25deg
Ta=-40deg
Ta=-40deg
0.1
0.1
0.01
-50
0.01
-50
-40
-30
-20
-10
0
10
-40
-30
-20
-10
0
10
Input Voltage [dBV]
Input Voltage [dBV]
Voltage Gain vs Frequency Response
Voltage Gain vs Frequency Response
(BYPASS)
V+=12V Vin=-10dBV Rch Vout=Rch
RL=47Kohm Rg=25ohm
(BYPASS)
V+=12V Vin=-10dBV Lch Vout=Lch
RL=47Kohm Rg=25ohm
3
2
3
2
Ta=-40deg
Ta=-40deg
1
1
Ta=25deg
Ta=85deg
Ta=25deg
Ta=85deg
0
0
-1
-2
-3
-1
-2
-3
104
105
10
100
1000
104
105
10
100
1000
Frequency [Hz]
Frequency [Hz]
- 9 -
NJM2702
■TYPICAL CHARACTERISTICS
Voltage Gain vs Frequency Response
Voltage Gain vs Frequency Response
(STEREO)
V+=12V Vin=-20dBV Lch Vout=Lch
RL=47Kohm Rg=25ohm
(STEREO)
V+=12V Vin=-20dBV Lch Vout=Rch
RL=47Kohm Rg=25ohm
14
12
10
8
15
10
Ta=-40deg
Ta=25deg
Ta=85deg
Ta=-40deg.
Ta=25deg.
Ta=85deg.
5
0
-5
6
4
-10
-15
-20
2
0
-2
104
105
10
100
1000
104
105
10
100
1000
Frequency [Hz]
Frequency [Hz]
Voltage Gain vs SW Control Voltage
DC Offset Voltage vs Ambient Temperature
V+=12V Vout=Lch
V+=12V Vin=-10dBV Lch f=100Hz Vout=Lch
BYPASS --> STEREO
6.1
6.05
6
14
12
10
8
BYPASS
Ta=85deg.
STEREO
Ta=25deg.
Ta=-40deg.
6
4
5.95
5.9
2
0
-2
0
0.5
1
1.5
2
2.5
-60
-40
-20
0
20
40
60
80
100
Ambient Temperature [degrees]
Control Voltage [V]
DC Offset Voltage vs Ambient Temperature
V+=12V Vout=Rch
6.1
6.05
6
STEREO
BYPASS
5.95
[CAUTION]
5.9
-60
-40
-20
0
20
40
60
80
100
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.
Ambient Temperature [degrees]
- 10 -
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