NJRC NJM2707

NJM2707
Sound Enhancement Audio Processor for Compression Audio
■ GENERAL DESCRIPTION
■ PACKAGE OUTLINE
The NJM2707 is a sound enhancement audio processor designed for
compression audio. It includes mode control switch (Sound enhancement mode
/ Bypass mode).
The NJM2707 performs low noise and low distortion characteristics, and is
suitable for car audio & home audio applications.
NJM2707RB2
■ FEATURES
+1.8 to +13 V
! Operating Voltage
! Low Operating Circuit
0.75 mA typ.( at Sound enhancement mode VR: Max.)
! Low output noise
-100dBV typ.( at Sound enhancement mode VR: Max.)
! Low THD
0.01% typ.
! Variable Surround Effect by external resistor
! Internal Mode Control Switch
! Bipolar Technology
! Package Outline
TVSP10
■ PIN CONFIGURATION
1
10
2
9
3
8
4
7
5
6
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
LIN
RIN
SW
VREF
GND
V+
NFR
NFL
ROUT
LOUT
■ BLOCK DIAGRAM (TVSP10)
BYPASS
LIN
1
REBIRTH
FILTER
10
LOUT
9
ROUT
BYPASS
REBIRTH
FILTER
RIN
2
SW
3
8
NFL
VREF
4
7
NFR
6
V+
+
V
GND
Ver.0.1E
5
–1–
NJM2707
■ ABSOLUTE MAXIMUM RATING (Ta=25°C)
PARAMETER
SYMBOL
RATING
UNIT
14
410
V
Power Supply Voltage
V+
Power Dissipation
PD
NOTE: EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 2layer, FR-4) mounting
Operating Temperature Range
Topr
-40 ~ +85
°C
Storage Temperature Range
Tstg
-40 ~ +125
°C
mW
■ OPERATING VOLTAGE
PARAMETER
Operating Voltage
SYMBOL
TEST CONDITION
V+
MIN.
TYP.
MAX.
UNIT
1.8
9.0
13
V
MIN
TYP
MAX
■ ELECTRICAL CHARACTERISTICS(Ta=25°C, V+=9V, unless otherwise specified)
TEST CONDITION
PARAMETER
SYMBOL
INPUT
Supply Current
ICC
No Signal
Reference Voltage
VREF
No Signal
OUTPUT
Mode
VR
UNIT
L
R
0
0
-
Bypass
-
-
0.75
1.3
0
0
-
eala
Rebirth
MAX
-
0.75
1.3
0
0
-
-
-
3.65
4.15
4.65
V
UNIT
mA
■ AC CHARACTERISTICS(Ta=25°C, V+=9V, Vin= 1.5Vrms,f=1kHz,RL=10kΩ,unless otherwise specified)
TEST CONDITION
PARAMETER
Maximum
Input
Voltage
Output
Noise
Total
Harmonic
Distortion
Bypass
Gain
–2–
SYMBOL
INPUT
L
R
f=1kHz
THD=1%
VIN
-
L
-
VIN
R
f=1kHz
THD=1%
VIN
-
L
-
VIN
R
f=10kHz
THD=1%
VIN
-
L
-
VIN
R
f=10kHz
THD=1%
VIN
-
L
-
VIN
R
Rg=0Ω
A-Weighted
0
0
Rg=0Ω
A-Weighted
0
0
VIN=1.5Vrms
f=1kHz
VIN
-
L
-
VIN
R
VIN=0.75Vrms
f=10kHz
VIN
-
L
-
VIN
R
VIN=1.5Vrms
f=1kHz
VIN
-
L
-
VIN
R
VIM
VNO
THD+N
GVBYP
OUTPUT
L
R
L
R
MIN
TYP
MAX
-
2.2
3.0
-
MAX
1.5
2.7
-
Mode
VR
Bypass
eala
Rebirth
Vrms
Bypass
-
2.2
3.0
-
eala
Rebirth
MAX
1.0
1.6
-
Bypass
-
-
-112
(2.5)
-106
(5.0)
eala
Rebirth
MAX
-
-100
(10)
-94
(20)
Bypass
-
-
0.002
0.01
dBV
(µVrms)
%
eala
Rebirth
MAX
-
0.1
-
Bypass
-
-1.0
0.0
1.0
dB
NJM2707
TEST CONDITION
PARAMETER
SYMBOL
eala Rebirth
Gain
Geala
INPUT
VIN=0.75Vrms
f=10kHz
OUTPUT
Mode
VR
eala
Rebirth
MAX
L
R
VIN
-
L
-
VIN
R
MIN
TYP
MAX
UNIT
3.0
5.0
7.0
dB
■ CONTROL CHARACTERISTICS(Ta=25°C, V+=9V, unless otherwise specified)
PARAMETER
Mode Select Control Voltage
■ SWITCH FUNCTION
MODE
SW
Bypass
L,Open
eala Rebirth
H
SYMBOL
VMODE
TEST CONDITION
MIN.
TYP.
MAX.
UNIT
+
V
V
VIN=High Level
1.2
-
V
VIN=Low Level
0.0
-
0.3
NOTES
Input Through
eala Rebirth(Stereo Input)
–3–
NJM2707
■ APPLICATION CIRCUIT
10uF+
+ 10uF
1
Lch Input
LIN
LOUT 10
10uF+
Rch Input
SW
100kΩ
1uF 1uF
+
+
2
RIN
ROUT
9
3
SW
NFL
8
4
VREF
NFR
7
5
GND
V+
6
Rch Output
2.2nF
MAX
VR:10kΩ
22kΩ
MIN
+
100uF
–4–
Lch Output
+ 10uF
+9V
NJM2707
■ TERMINAL DESCRIPTION
+
(Ta=25°C, V =9V)
PIN No.
SYMBOL
FUNCTION
EQUIVALENT CIRCUIT
V+
LIN
RIN
Lch Input
Rch Input
V+
4.15V
700
100k
1
2
V+
Voltage
VREF
V+
3
MODE SW
V+
V+
Mode Control Switch
0V
300k
700
V+
V+
300k
V+
VREF
Reference Voltage
4.15V
300k
4
–5–
NJM2707
■ TERMINAL DESCRIPTION
+
(Ta=25°C, V =9V)
PIN No.
SYMBOL
FUNCTION
6
V+
Power Supply
EQUIVALENT CIRCUIT
Voltage
V+
V+
20k
V+
7
8
NFR
NFL
Rch Filter Terminal
Lch Filter Terminal
4.15V
400
9
10
ROUT
LOUT
Rch Output
Lch Output
V+
20k
V+
V+
12k
V+
4.15V
[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.
–6–