NJRC NJU72340A

NJU72340A
8-CHANNEL ELECTRONIC VOLUME WITH INPUT SELECTOR
Q GENERAL DESCRIPTION
The NJU72340A is a 8-channel electronic volume with
Input Selector. It includes 8-in 2-out audio selector, REC
Output and Multi-channel inputs.
The NJU72340A performs low noise and low distortion
characteristics with resistance ladder circuit.
All of functions are controlled via two-wired serial bus.
The NJU72340A is suitable for multi-channel audio
system, such as AV amplifier, DVD receiver, and others.
Q FEATURES
O Operating Voltage
O 2-Wired Serial Control
O 8-input 2-output selector
O Multi-Channel input (8ch x 1)
O Input Selector Gain Control
O Volume
O CMOS Technology
O Package Outline
Q PACKAGE OUTLINE
NJU72340AFH3
±4.5 to ±7.5V
stereo : 7-input, monaural : 1-input
*LBch x2, RBch x2
Gain : 0,-5,-6,-7,-9,-11,-12,-13dB
+31.5 ~ -95dB/0.5dBstep, MUTE
LQFP52-H3
Q BLOCK DIAGRAM
Main Volume:
+31.5 to -95dB/0.5dB step
Multi-Cin
Cout
REC _L
Stereo Lin
(×7)
Multi-LSin
LSout
Input Selector
Multi-LBin
LBout
Multi-Lin
Lout for ADC
Lout
Input Selector
Mono in
(×1)
Stereo Rin
(×7)
Rout
Input Selector Gain:
0,-5,-6,-7,-9,-11,-12,-13dB
Multi-Rin Multi-RBin
Rout
for ADC
RBout
Multi-RSin
RBout
REC _R
Multi-SWin
SWout
Control Logic
DataClock
Ver 2.2E
–1–
NJU72340A
Q PIN FUNCTION
39
–2–
SYMBOL
LOUT
ROUT
COUT
LSOUT
RSOUT
LBOUT
RBOUT
SWOUT
DCAP_1
DCAP_2
GND
DATA
CLOCK
DCAP_3
REC_R
REC_L
GND
RB2IN
LB2IN
R1IN
L1IN
R2IN
L2IN
R3IN
L3IN
DCAP_4
37
36
35
34
33
32
31
30
29
28
27
40
26
41
25
42
24
43
23
44
22
45
21
46
20
47
19
48
18
49
17
50
16
51
15
52
14
1
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
38
2
3
4
FUNCTION
Lch output
Rch output
Cch output
LSch output
RSch output
LBch output
RBch output
SWch output
Switching noise rejection capacitor 1
Switching noise rejection capacitor 2
Ground
Control data signal input
Clock signal input
Switching noise rejection capacitor 3
“Input selector” Rch REC output
“Input selector” Lch REC output
Ground
Multi-channel RBch input 2
Multi-channel LBch input 2
“Input selector” Rch input 1
“Input selector” Lch input 1
“Input selector” Rch input 2
“Input selector” Lch input 2
“Input selector” Rch input 3
“Input selector” Lch input 3
Switching noise rejection capacitor 4
5
6
7
8
No.
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
9
10
11
12
SYMBOL
R4IN
L4IN
R5IN
L5IN
R6IN
L6IN
R7IN
L7IN
DCAP_5
MONOIN
DCAP_6
ADC_R
ADC_L
GND
LIN
RIN
CIN
LSIN
RSIN
LBIN
RBIN
SWIN
VV+
DCAP_7
DCAP_8
13
FUNCTION
“Input selector” Rch input 4
“Input selector” Lch input 4
“Input selector” Rch input 5
“Input selector” Lch input 5
“Input selector” Rch input 6
“Input selector” Lch input 6
“Input selector” Rch input 7
“Input selector” Lch input 7
Switching noise rejection capacitor 5
Monaural input selector
“Input selector” Lch input 7
Rch output for ADC
Lch output for ADC
Ground
Multi-channel Lch input
Multi-channel Rch input
Multi-channel Cch input
Multi-channel LSch input
Multi-channel RSch input
Multi-channel LBch input
Multi-channel RBch input
Multi-channel SWch input
Power Supply (-)
Power Supply (+)
Switching noise rejection capacitor 7
Switching noise rejection capacitor 8
NJU72340A
Q ABSOLUTE MAXIMUM RATING (Ta=25°C)
PARAMETER
SYMBOL
Power Supply Voltage
+
RATING
UNIT
+8/-8
V
-
V /V
Maximum Input Voltage
VIM
Power Dissipation
PD
+
-
V /V
1800
V
mW
NOTE: EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 2layer, FR-4) mounting
Operating Temperature Range
Topr
-40 to +85
°C
Storage Temperature Range
Tstg
-40 to +125
°C
Q ELECTRICAL CHARACTERISTICS (Ta=25°C, V+/V-=±7V, RL=47kΩ, Volume=0dB)
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP.
MAX.
UNIT
±4.5
±7.0
±7.5
V
X Power Supply
Operating Voltage
V+/V-
Supply Current 1
ICC
No signal
-
12
25
mA
Supply Current 2
IEE
No signal
-
12
25
mA
3.6
4.2
-
Vrms
4.7
-
-
Vrms
-0.5
0
+0.5
dB
+14
+15
+16
dB
-0.5
0
0.5
dB
-
-120
-
dB
-1
0
1
dB
-117
(1.41µ)
-117
(1.41µ)
-104
(6.3µ)
-104
(6.3µ)
dBV
(Vrms)
dBV
(Vrms)
-
0.0004
0.01
%
-
0.0008
-
%
-
-120
-
dB
-
-100
-
dB
-
-115
-80
dB
-
-90
-
dB
X Input/Output Characteristics (Output)
Maximum Output Voltage
VOM
Maximum Input Voltage
VIM
Voltage Gain 1
GV1
Voltage Gain 2
GV2
Voltage Gain Error
∆GV
Maximum Attenuation
ATT
Attenuation Error
∆ATT
Output Noise1
VNO1
Output Noise2
VNO2
Total Harmonic Distortion 1
T.H.D.1
Total Harmonic Distortion 2
T.H.D.2
Cross Talk 1
CT1
Cross Talk 2
CT2
Channel Separation 1
CS1
Channel Separation 2
CS2
f=1kHz, THD=1%
Volume=0dB
f=1kHz, THD=1%
Volume=-20dB
VIN=2Vrms, f=1kHz
Volume=0dB
VIN=100mVrms, f=1kHz
Volume=+15dB
VIN=2Vrms, f=1kHz
Volume=0dB
f=1kHz, VIN=2Vrms
Volume=Mute, A-weight
f=1kHz, VIN=2Vrms
Volume=-60dB
Volume=0dB,
Rg=0, A-weight
Volume=-95dB,
Rg=0, A-weight
f=1kHz,VIN=1Vrms,
Volume=0dB,BW=400Hz-30kHz
f=10kHz,VIN=1Vrms,
Volume=0dB, BW=400Hz -30kHz
f=1kHz,VIN=2Vrms,A-weight
Volume=0dB, Rg=0Ω
f=20kHz, VIN =2Vrms,
Volume=0dB, Rg=0Ω
f=1kHz, VIN =2Vrms,A-weight
Volume=0dB, Rg=0Ω
f=20kHz, VIN =2Vrms,
Volume=0dB, Rg=0Ω
-
–3–
NJU72340A
Q ELECTRICAL CHARACTERISTICS (Ta=25°C, V+/V-=±7V, RL=47kΩ, Volume=0dB)
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP.
MAX.
UNIT
-0.5
0
0.5
dB
-
-114
(2µ)
-
dBV
(Vrms)
-
0.0003
0.05
%
-
-120
-
dB
-1.0
0
+1.0
dB
-7.0
-6.0
-5.0
dB
-13.0
-12.0
-11.0
dB
X Input/Output Characteristics (REC output)
REC Out Voltage Gain
REC Out
Output Noise
REC Out
Total Harmonic Distortion
REC Out
Maximum Attenuation
GVREC
VIN=2Vrms, f=1kHz
VNOREC
Rg=0Ω, A-weight
T.H.DREC
ATTREC
f=1kHz, VIN =1Vrms,
BW=400Hz-30kHz
f=1kHz, VIN=2Vrms
REC Out=Mute, A-weight
X Input Selector Gain Control Characteristics
Input Selector Gain Control
Voltage Gain 1
Input Selector Gain Control
Voltage Gain 2
Input Selector Gain Control
Voltage Gain 3
GVINC1
GVINC2
GVINC3
f=1kHz, VIN =2Vrms,
Input Selector Gain = 0dB
f=1kHz, VIN =2Vrms,
Input Selector Gain = -6dB
f=1kHz, VIN =2Vrms,
Input Selector Gain = -12dB
XLogic Control Characteristics
High Level Input Voltage
VIH
DATA, CLOCK Terminal Input
2.5
-
V+
V
Low Level Input Voltage
VIL
DATA, CLOCK Terminal Input
0
-
1.0
V
–4–
NJU72340A
LOUT
ROUT
COUT
LSOUT
RSOUT
LBOUT
RBOUT
SWOUT
DCAP_1
C1
+
10µF
C2
+
10µF
C3
+
10µF
C4
+
10µF
C5
+
10µF
C6
+
10µF
C7
+
10µF
C8
+
10µF
C9
+
50
49
47
46
44
43
42
41
10µF
+
GND
LIN
RIN
+
10µF
C36
CIN
+
10µF
C37
LSIN
45
+
10µF
C38
RSIN
+
10µF
C39
LBIN
+
10µF
C40
RBIN
48
+
10µF
C41
SWIN
C43
10µF
C42
C44
+
100µF
C45
V-
V+
DCAP_7
51
+
+
100µF
52
+
100µF
+
100µF
C46
C47
DCAP_8
Q APPLICATION CIRCUIT
40
1
39
2
38
3
37
4
36
5
35
6
34
7
33
8
32
9
31
100µF
DCAP_2
C10
+
Rch Selecotr 2
Rch Selecotr 1
Lch Selecotr 2
Lch Selecotr 1
10
30
100µF
+
10µF
C33
+
100µF
C32
+
10µF
C31
+
100µF
C30
+
10µF
C29
+
10µF
C28
+
10µF
C27
+
10µF
C26
+
10µF
C25
+
10µF
C24
+
10µF
C23
+
ADC_L
ADC_R
DCAP_6
MONOIN
DCAP_5
L7IN
R7IN
L6IN
R6IN
L5IN
R5IN
L4IN
R4IN
100µF
+
DCAP_4
L3IN
+
26
10µF
C22
25
10µF
C21
+
R3IN
L2IN
+
24
10µF
C20
23
10µF
C19
+
R2IN
L1IN
+
22
10µF
C18
21
10µF
C17
+
R1IN
+
20
10µF
C16
+
19
LB2IN
18
10µF
C15
+
17
C14
+
16
RB2IN
15
GND
DCAP_3
C11
+
10µF
C34
10µF
10µF
14
27
REC_R
13
28
10µF
C13
JP2
12
REC_L
CLOCK
JP1
100µF
C12
DATA
29
Control Logic
11
GND
C35
+
Note.) When switching REC(REC Output) and REC Selector, use MUTE for REC_L pin and REC_R pin on the set. When switching Input Gain
and Input Selector, use MUTE for ADC_L pin and ADC_R pin on the set.
–5–
NJU72340A
„ TIMING ON THE 2-Wire BUS (DATA, CLOCK)
DATA
tSU:ST A
tHD:ST A
tHIGH
tSU:DAT
tSU:ST O
tBUF
CLOCK
tLOW
tHD:DAT
Note.) Set CLOCK in Low to prevent incorrect operation during a standby period
„ CHARACTERISTICS OF I/O STAGES FOR 2-Wire BUS (DATA, CLOCK)
PARAMETER
tHD_STA
tLOW
tHIGH
tSU_STA
tHD_DAT
tSU_DAT
tSU_STO
tBUF
–6–
SYMBOL
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
Data set-up time
Set-up time for STOP condition
Bus free time between a STOP and START condition
MIN.
TYP.
MAX.
UNIT
4
2
2
2
300
200
2
4
-
-
-
-
-
-
µs
µs
µs
µs
ns
ns
µs
µs
NJU72340A
„ DEFINITION OF 2-Wire REGISTER
Note) Please don't send except specified data for avoiding an incorrect operation.
X 2-Wire BUS FORMAT
MSB
LSB
S
Chip Address
1bit
8bit
MSB
LSB
1
MSB
Select Address
1bit
LSB
1
8bit
Data
1bit
8bit
1
P
1bit
1bit
S: Starting Term
P: Ending Term
X Chip Address
MSB
1
LSB
0
0
0
1
0
0
0
X Select Address
The select address sets each function (Volume, Input Gain, Input Selector, Multi Selector, Other Settings).
The auto increment function cycles the select address as follows.
00H→01H→02H→03H→04H→05H→06H→07H→08H→09H→0AH→00H
MSB
Select
Address
LSB
Data
D7
D6
D5
D4
D3
00H
Lch Volume
01H
Rch Volume
02H
Cch Volume
03H
LSch Volume
04H
RSch Volume
05H
LBch Volume
06H
RBch Volume
07H
SWch Volume
08H
Input Gain
09H
REC
Lch Selector
D1
D0
Input Selector
Cch
Selector
Rec Selector
0AH
D2
Rch Selector
SWch
Selector
LBch Selector
LSch
Selector
RSch
Selector
RBch Selector
„ CONTROL REGISTER DEFAULT VALUE
MSB
Select
Address
00H
01H
02H
03H
04H
05H
06H
07H
08H
09H
0AH
LSB
Data
D7
0
0
0
0
0
0
0
0
0
0
0
D6
0
0
0
0
0
0
0
0
0
0
0
D5
0
0
0
0
0
0
0
0
0
0
0
D4
0
0
0
0
0
0
0
0
0
0
0
D3
0
0
0
0
0
0
0
0
0
0
0
D2
0
0
0
0
0
0
0
0
0
0
0
D1
0
0
0
0
0
0
0
0
0
0
0
D0
0
0
0
0
0
0
0
0
0
0
0
Note.) This product starts up by MUTE setting in power “ON”. Use it after removing MUTE of each setting.
If any audio signal is inputted in input signal terminal before power “ON”, it may cause initial condition abnormality.
In conditions of use such as the above, it prevents that abnormality by setting MUTE before power “OFF"
–7–
NJU72340A
„ DEFINITION OF RESISTOR
XVolume Control : +31.5dB to -95dB / 0.5dBstep.
MSB
Select
Address
D7
D6
00H
01H
02H
03H
04H
05H
06H
07H
< Volume Control Data >
LSB
D5
Data
D4
D3
Lch Volume
Rch Volume
Cch Volume
LSch Volume
RSch Volume
LBch Volume
RBch Volume
SWch Volume
D2
D1
D0
Data
D7
0
0
0
0
0
0
0
0
0
D6
0
0
0
0
0
0
0
0
0
D5
0
0
0
0
0
0
0
0
0
D4
0
0
0
0
0
0
0
0
0
Setting
D3
0
0
0
0
0
0
0
0
1
D2
0
0
0
0
1
1
1
1
0
D1
0
0
1
1
0
0
1
1
0
D0
0
1
0
1
0
1
0
1
0
Mute(7)
+31.5dB
+31.0dB
+30.5dB
+30.0dB
+29.5dB
+29.0dB
+28.5dB
+28.0dB
…
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
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
…
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
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
+4.0dB
+3.5dB
+3.0dB
+2.5dB
+2.0dB
+1.5dB
+1.0dB
+0.5dB
0dB
-0.5dB
-1.0dB
-1.5dB
-2.0dB
-2.5dB
-3.0dB
-3.5dB
-4.0dB
…
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
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
1
1
1
1
…
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
1
1
1
1
0
0
0
0
1
1
1
1
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
-89.0dB
-89.5dB
-90.0dB
-90.5dB
-91.0dB
-91.5dB
-92.0dB
-92.5dB
-93.0dB
-93.5dB
-94.0dB
-94.5dB
-95.0dB
Mute
(7)
–8–
Initial Setting
NJU72340A
XInput Gain
XREC
XInput Selector
: Gain control for selected signal at the Input Selector.
: REC Output ON/OFF
: Selector for the monaural input and stereo inputs from 1IN to 8IN
MSB
LSB
Data
Select
Address
08H
D7
D6
D5
Input Gain
D4
REC
D3
D2
D1
Input Selector
D0
< Input Selector Gain Control Data >
Data
Setting
D7
D6
D5
0
0
0
0dB(7)
0
0
1
-5dB
0
1
0
-6dB
0
1
1
-7dB
1
0
0
-9dB
1
0
1
-11dB
1
1
0
-12dB
1
1
1
-13dB
<REC ON/OFF Data>
Data
Setting
D4
REC Output
0
(
OFF 7)
REC Output
1
ON
< Input Selector Data >
Data
D3
D2
D1
D0
0
0
0
0
0
0
0
0
1
0
0
0
0
1
1
1
1
0
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
Setting
Mute(7)
1IN (2ch Input 1)
2IN (2ch Input 2)
3IN (2ch Input 3)
4IN (2ch Input 4)
5IN (2ch Input 5)
6IN (2ch Input 6)
7IN (2ch Input 7)
MONOIN (2ch monoral Input 1)
(7)
Initial Setting
–9–
NJU72340A
XREC Selector
XCch Selector
XSWch Selector
XLSch Selector
XRSch Selector
: Selector for the 2 channel Input signal to REC output。
: Cch Multi-Channel Selector Data
: SWch Multi-Channel Selector Data
: LSch Multi-Channel Selector Data
: RSch Multi-Channel Selector Data
MSB
Select
Address
09H
D7
LSB
D6
D5
Rec Selector
Data
D4
D3
Cch
Selector
D2
D1
D0
SWch
Selector
LSch
Selector
RSch
Selector
< Rec Selector Data >
Data
D7
D6
D5
D4
0
0
0
0
0
0
0
0
1
0
0
0
0
1
1
1
1
0
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
Setting
Mute(7)
1IN (2ch Input 1)
2IN (2ch Input 2)
3IN (2ch Input 3)
4IN (2ch Input 4)
5IN (2ch Input 5)
6IN (2ch Input 6)
7IN (2ch Input 7)
MONOIN (2ch monaural Input 1)
<Cch Multi Selector Data>
Data
Setting
D3
0
MUTE(7)
1
Multi-Channel Input
<SWch Multi Selector Data>
Data
Setting
D2
0
MUTE(7)
1
Multi-Channel Input
<LSch Multi Selector Data>
Data
Setting
D1
0
MUTE(7)
1
Multi-Channel Input
<RSch Multi Selector Data>
Data
Setting
D0
0
MUTE(7)
1
Multi-Channel Input
(7)
– 10 –
Initial Setting
NJU72340A
XLch Selector
XRch Selector
XLBch Selector
XRBch Selector
: Lch Multi-Channel Selector Data
: Rch Multi-Channel Selector Data
: LBch Multi-Channel Selector Data
: RBch Multi-Channel Selector Data
MSB
Select
Address
0AH
LSB
D7
D6
Lch Selector
Data
D5
D4
D3
D2
LBch
Rch Selector
Selector
D1
D0
RBch
Selector
<Lch Multi Selector Data>
Data
D7
D6
0
0
1
0
1
0
Setting
MUTE(7)
8-Input
Multi-Channel Input
<Rch Multi Selector Data>
Data
D5
D4
0
0
1
0
1
0
Setting
MUTE(7)
8-Input
Multi-Channel Input
<LBch Multi Selector Data>
Data
D7
D6
0
0
1
1
0
1
0
1
Setting
MUTE(7)
Multi-Channel Input1
Multi-Channel Input2
Lch Output
<RBch Multi Selector Data>
Data
D7
D6
0
0
1
1
0
1
0
1
Setting
MUTE(7)
Multi-Channel Input1
Multi-Channel Input2
Rch Output
(7)
Initial Setting
– 11 –
NJU72340A
ICC vs Supply Voltage
IEE vs Supply Voltage
No signal
No signal
20
20
15
15
10
IEE [mA]
ICC [mA]
„TYPICAL CHARACTERISTICS
Ta= -40°C
10
Ta= -40°C
Ta= 25°C
5
Ta= 25°C
5
Ta= 85°C
0
0
0
2
4
6
8
10
0
8
IEE vs Ambient Temperature
No signal
No signal
20
15
15
10
V= ± 7V
V= ± 4.5V
10
10
V= ± 7V
V= ± 4.5V
V= ± 7.5V
V= ± 7.5V
5
0
-50
0
50
100
150
-50
Ambient Temperature [°C]
0
50
100
150
Ambient Temperature [°C]
Maximum Output Voltage vs Frequency
Maximum Output Voltage vs Supply Voltage
V=±7V, THD=1%, I/O: LIN-LOUT
f=1kHz, THD=1%, I/O: LIN-LOUT
6
Maximum Output Voltage [Vrms]
5.0
Maximum Output Voltage [Vrms]
6
ICC vs Ambient Temperature
0
4.5
Ta= 85°C
Ta= 25°C
Ta= -40°C
4.0
5
4
Ta= 85°C
3
Ta= 25°C
Ta= -40°C
2
1
10
100
1000
Frequency [Hz]
– 12 –
4
Supply Voltage [±V]
20
5
2
Supply Voltage [±V]
IEE [mA]
ICC [mA]
Ta= 85°C
10000
100000
2
4
6
Supply Voltage [±V]
8
10
NJU72340A
Volume Gain output vs Frequency
Volume Gain Output vs Volume Setting
V=±7V, Vin=2Vrms(VOL=0,-50,-95dB, Mute),
Vin=0.1Vrms(VOL=+15,+30dB), Bandpass, I/O: LIN-Lout
V=±7V, f=1kHz, Bandpass, I/O: LIN-LOUT
40
32
20
16
0
VOL= +15dB
VOL= 0dB
-20
VOL= +30dB
-40
-60
VOL= -50dB
VOL= -95dB
-80
0
Volume Gain Output [dB]
Volume Gain Output [dB]
„TYPICAL CHARACTERISTICS
-100
-16
-32
-48
-64
Ta= -40℃, +25℃, +85℃
VOL= Mute
-120
-80
-96
-140
10
100
1000
10000
32
100000
16
0
-16
-32
-48
-64
-80
-96
Volume Setting [dB]
Frequency [Hz]
THD+N vs Input Voltage
THD+N vs Input Voltage
V=±7V, BW:10-22kHz(f=20Hz), 400-30kHz(f=1kHz),
400-80kHz(f=20kHz), I/O: LIN-LOUT
V=±7V, f=1kHz, BW:400-30kHz, I/O: LIN-LOUT
10
10
VOL= -30dB
1
VOL= -20dB
1
THD+N [%]_
THD+N [%]_
VOL= -10dB
0.1
f=20kHz
0.01
0.001
VOL=0dB
0.1
0.01
0.001
f=20Hz
f=1kHz
0.1
1
Input Voltage [Vrms]
10
0.0001
0.01
0.1
1
Input Voltage [Vrms]
THD+N vs Ambient Temperature
THD+N vs Frequency
V=±7V, Vin=1Vrms, f=1kHz, BW:400-30kHz,
I/O: LIN-Lout
V=±7V, VOL=0dB, BW:10-80kHz, I/O: LIN-LOUT
10
10
1
1
THD+N [%]_
THD+N [%]_
0.0001
0.01
0.1
0.01
10
Vin=2Vrms
0.1
Vin=1Vrm
0.01
0.001
0.001
0.0001
0.0001
-50
0
50
100
Ambient Temperature [°C]
150
10
100
1000
10000
100000
Frequency [Hz]
– 13 –
NJU72340A
„TYPICAL CHARACTERISTICS
Output Noise Voltage vs Ambient Temperature
Output Voltage vs Load Resistance
V=±7V, Rg=0Ω, VOL=0dB, A-Weighted
V=±7V, f=1kHz, Vin=4.2Vrms, VOL=0dB,
5
Lch Output
-20
4
Output Voltage [Vrms]
Output Noise Voltage [dBV]
0
-40
-60
-80
Lch Output
-100
-120
-140
3
2
1
0
-50
0
50
100
150
100
1000
10000
Load Resistance [Ω]
Ambient Temperature [°C]
Channel Separation vs Frequency
Cross Talk vs Frequency
V=±7V, Vin=2Vrms, VOL=0dB, BW:10-80kHz,
I/O: R1IN-LOUT
V=±7V, Vin=2Vrms, VOL=0dB, BW:10-80kHz,
I/O: L1IN,L3IN-LOUT, Select Channel:2ch
-40
-40
Rg=5.1kΩ
-60
Rg=5.1kΩ
-60
Rg=3.3kΩ
Cross Talk [dB]
Channel Separation [dB]
100000
Rg=620Ω
-80
Rg=0Ω
-100
Rg=3.3kΩ
Rg=620Ω
-80
Rg=0Ω
-100
-120
-120
10
100
1000
Frequency [Hz]
10000
100000
10
100
1000
10000
Frequency [Hz]
100000
[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.
– 14 –