NJM2708V [NJRC]
Consumer Circuit, Bipolar, PDSO14, SSOP-14;
| 型号： | NJM2708V |
| 厂家： | 
NEW JAPAN RADIO |
| 描述： | Consumer Circuit, Bipolar, PDSO14, SSOP-14 光电二极管 商用集成电路 |
| 文件： | 总8页 (文件大小：118K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NJM2708
Sound Enhancement Audio Processor for Compression Audio
■GENERAL DESCRIPTION
●PACKAGE OUTLINE
The NJM2708 is a sound enhancement audio processor designed for
compression audio. It includes mode control switch (sound enhancement mode
/ Bypass mode), standby function and realizes low consumption power design
by standby function.
It is suitable for portable audio, car audio & home audio applications.
■FEATURES
NJM2708V
●
●
Operating Voltage
+1.8 to +13 V
Low Operating Circuit
0.75 mA typ.(at Sound enhancement mode VR: Max.)
0.1µA typ. (at Standby mode)
●
●
●
Low output noise
Low THD
-100dBV typ.(at Sound enhancement mode VR: Max.)
0.005% typ.
Variable Surround Effect by external resistor
● Standby function
●
●
●
Internal Mode Control Switch
Bipolar Technology
Package Outline
SSOP14
■PIN CONFIGURATION
1. STANDBY SW
2. LIN
1
2
3
4
5
6
7
14
13
12
11
10
9
3. RIN
4. MODE SW
5. VREF
6. GND
7. NC
8. DNC
9. V+
10. NFR
11. NFL
12. ROUT
13. LOUT
14. NC
8
(SSOP14)
Ver.0.1E
NJM2708
■BLOCK DIAGRAM (SSOP14)
1
14
13
12
11
10
9
BIAS
STBY SW
NC
BYPASS
REBIRTH
FILTER
2
LIN
LOUT
ROUT
NFL
V+
BYPASS
REBIRTH
FILTER
3
RIN
4
MODE SW
5
VREF
V+
6
GND
7
8
NC
DNC
– 2 –
NJM2708
■ABSOLUTE MAXIMUM RATING (Ta=25°C)
PARAMETER SYMBOL
RATING
UNIT
V
Power Supply Voltage
V+
PD
14
400
Power Dissipation
mW
NOTE: EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 2layer, FR-4) mounting
Operating Temperature Range
Storage Temperature Range
Topr
Tstg
-40 ~ +85
°C
°C
-40 ~ +125
■OPERATING VOLTAGE
PARAMETER
SYMBOL
TEST CONDITION
MIN. TYP. MAX. UNIT
V+
Operating Voltage
1.8
9.0
13
V
■ELECTRICAL CHARACTERISTICS (Ta=25°C, V+=9V, unless otherwise specified)
TEST CONDITION
PARAMETER
SYMBOL
MIN TYP MAX
UNIT
INPUT
OUTPUT
Mode
VR
L
R
0
0
0
0
-
-
Active
-
-
-
-
750
0.1
1300
1.0
Standby
Supply Current
ICC
No Signal
No Signal
µA
V
eala
Rebirth
0
0
0
0
-
-
Max
-
-
750
1300
4.65
Reference Voltage
VREF
-
3.65
4.15
■AC CHARACTERISTICS (Ta=25°C, V+=9V, Vin= 1.5Vrms,f=1kHz,RL=10kΩ,unless otherwise specified)
TEST CONDITION
PARAMETER
SYMBOL
MIN TYP MAX
UNIT
INPUT
OUTPUT
Mode
VR
L
R
VIN
-
-
VIN
-
L
R
L
f=1kHz
THD=1%
Bypass
-
2.2
1.5
2.2
1.0
-
3.0
2.7
3.0
1.6
-
-
-
-
VIN
-
f=1kHz
THD=1%
eala
Rebirth
MAX
-
Maximum
Input
Voltage
VIN
-
R
L
VIM
Vrms
VIN
-
f=10kHz
THD=1%
Bypass
VIN
-
R
L
VIN
-
f=10kHz
THD=1%
eala
Rebirth
MAX
-
VIN
R
L
Rg=0Ω
A-Weighted
-112
(2.5)
-106
(5.0)
0
0
0
0
Bypass
R
L
Output
Noise
dBV
(µVrms)
VNO
Rg=0Ω
A-Weighted
eala
Rebirth
-100
(10)
-94
(20)
MAX
-
-
R
L
VIN
-
-
VIN=1.5Vrms
f=1kHz
Bypass
-
0.002
0.1
0.01
-
Total
Harmonic
Distortion
VIN
-
R
L
THD+N
%
VIN
-
VIN=0.75Vrms
f=10kHz
eala
Rebirth
MAX
-
VIN
R
– 3 –
NJM2708
TEST CONDITION
PARAMETER
SYMBOL
MIN TYP MAX
UNIT
INPUT
OUTPUT
Mode
VR
-
L
R
VIN
-
-
L
R
L
Bypass
Gain
VIN=1.5Vrms
f=1kHz
GVBYP
Bypass
-1.0
3.0
0.0
5.0
1.0
7.0
dB
dB
VIN
-
VIN
-
eala Rebirth
Gain
VIN=0.75Vrms
f=10kHz
eala
Rebirth
Geala
MAX
VIN
R
■CONTROL CHARACTERISTICS (Ta=25°C, V+=9V, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITION
VIN=High Level
VIN=Low Level
MIN.
TYP. MAX.
UNIT
1.2
0.0
-
-
V+
V
V
VMODE
Mode Select Control Voltage
0.3
■SWITCH FUNCTION
MODE SW
MODE
Bypass
eala Rebirth
SW
L, open
H
NOTES
Input Through
eala Rebirth(Stereo Input)
STANDBY SW
MODE
Standby
Active
SW
L, open
H
NOTES
IC is non-active
IC is active
– 4 –
NJM2708
■ APPLICATION CIRCUIT
1
2
3
4
5
6
7
STANDBY SW
LIN
NC 14
LOUT 13
ROUT 12
NFL 11
10uF
10uF
10uF
10uF
+
+
+
+
Lch Input
Rch Input
Lch Output
Rch Output
RIN
2.2nF
100kΩ
MODE SW
VREF
MAX
22kΩ
VR:10kΩ
NFR 10
MIN
+
+
1uF
10uF
GND
V+
9
8
100uF
+9V
+
NC
DNC
– 5 –
NJM2708
■ TERMINAL DESCRIPTION
(Ta=25°C, V+=9V)
PIN No.
SYMBOL
FUNCTION
EQUIVALENT CIRCUIT
Voltage
0V
V+
V+
STANDBY
SW
1
Standby Switch
700
V+
75k
V+
V+
2
3
LIN
Lch Input
Rch Input
4.15V
RIN
700
VREF
V+
V+
V+
4
MODE SW
Mode Control Switch
0V
700
V+
V+
V+
5
VREF
Reference Voltage
4.15V
– 6 –
NJM2708
■ TERMINAL DESCRIPTION
(Ta=25°C, V+=9V)
PIN No.
SYMBOL
FUNCTION
No Connect
EQUIVALENT CIRCUIT
Voltage
-
7
NC
14
8
9
DNC
V+
Do Not Connect
Power Supply
-
V+
V+
V+
10
11
NFR
NFL
Rch Filter Terminal
Lch Filter Terminal
4.15V
400
V+
V+
V+
V+
12
13
ROUT
LOUT
Rch Output
Lch Output
4.15V
12k
– 7 –
NJM2708
[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.
– 8 –
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