NJM2753V [NJRC]
3-Input / 1-Output Stereo Audio Selector; 3输入/ 1输出立体声音频选择器
| 型号： | NJM2753V |
| 厂家： | 
NEW JAPAN RADIO |
| 描述： | 3-Input / 1-Output Stereo Audio Selector |
| 文件： | 总9页 (文件大小：148K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NJM2753
3-Input / 1-Output Stereo Audio Selector
■ GENERAL DESCRIPTION
■ PACKAGE OUTLINE
The NJM2753 is 3-Input / 1-Output Stereo Audio Selector.
The NJM2753 consists of switches and buffer operational
amplifiers.
Based on the internal switch op-amp technology, the
NJM2753 features lower output noise, lower distortion and
higher channel separation than the general Multiplexers or
Analogue Switches.
NJM2753V
The NJM2753 contains compatibility with NJM2752(2in-1out
SW),NJM2755(4in-1out SW).
■APPLICATIONS
■LCD-TV/PDP-TV
■Car Stereo
■Any Audio System
■ FEATURES
■ Operating Voltage
4.7 to 10V
■ 3-Input / 1-Output Stereo Audio Selector
■ Low Output Noise
-114dBV typ.
0.0009% typ.
■ Low Distortion
■ Bipolar Technology
■ Package Outline
SSOP14
■ BLOCK DIAGRAM
CNT1
CNT2
IN1A
IN1B
LOGIC
IN2A
IN2B
OUTA
IN3A
IN3B
OUTB
V＋
Vref
GND
Vref
Ver.1.0
- 1 -
NJM2753
■ PIN CONFIGURATIONS
NJM2753 SSOP14
SSOP14
1
2
3
4
5
6
7
14
13
12
11
10
9
OUTB
IN1B
GND
IN2B
Vref
OUTA
IN1A
V+
IN2A
CNT1
IN3A
CNT2
IN3B
N.C
8
PIN.No.
SYMBOL
OUTA
FUNCTION
PIN.No
.
SYMBOL
FUNCTION
No Connection
1
2
3
4
5
6
7
Ach Output Terminal
Ach Input Terminal1
Power Supply Terminal
Ach Input Terminal2
Control Switch Terminal1
Ach Input Terminal2
Control Switch Terminal2
8
N.C
IN1A
V+
9
IN3B
Vref
Bch Input Terminal3
Reference Terminal
Bch Input Terminal2
GND Terminal
10
11
12
13
14
IN2A
CNT1
IN3A
CNT2
IN2B
GND
IN1B
OUTB
Bch Input Terminal1
Bch Output Terminal
[Reference]
The NJM2753 contains compatibility with NJM2752 (2in-1out SW),NJM2755 (4in-1out SW).
NJM2755
NJM2752
1
14
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
OUTB
IN1B
GND
IN2B
Vref
N.C
OUTA
IN1A
V+
OUTB
IN1B
GND
IN2B
Vref
OUTA
IN1A
V+
2
3
13
12
4
5
11
10
IN2A
CNT1
IN3A
CNT2
IN4A
IN2A
CNT1
6
7
N.C
N.C
9
8
IN3B
N.C
N.C
IN4B
- 2 -
NJM2753
■ ABSOLUTE MAXIMUM RATINGS (Ta=25°C)
PARAMETER
Supply Voltage
SYMBOL
V+
RATING
12
UNIT
V
SSOP14
4501)
5702)
Power Dissipation
PD
mW
NOTE 1): EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 2layer, FR-4) mounting
2): EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 4layer, FR-4) mounting
Operating Temperature Range
Storage Temperature Range
TOPR
TSTR
-40 to +85
-40 to +150
°C
°C
■ ELECTRICAL CHARACTERISTICS ( Ta=25°C, V+=9V)
PARAMETER
Operating Voltage
Supply Current
Reference Voltage
Voltage Gain
SYMBOL
V+
ICC
VREF
GV
THD+N
TEST CONDITION
MIN.
TYP.
9.0
10
4.5
0
MAX.
10
15
-
1
UNIT
V
mA
V
dB
%
4.7
-
-
-1
-
No Signal
Vin=1Vrms, f=1kHz
Vin=1Vrms, f=1kHz
Total Harmonic Distortion
0.0009
0.03
-
-
-114
-100
dBV
(µVrms)
dBV
Output Noise Voltage
Maximum Output Voltage
Cross Talk
VNO
VOM
CT
A-Weighted
(2)
(10)
6
8
f=1kHz, THD=1%
-
-
-
(2.0)
(2.5)
(Vrms)
Vin=1Vrms, f=1kHz,
A-Weighted
Vin=1Vrms, f=1kHz,
A-Weighted
85
100
dB
Channel Separation
CS
90
110
dB
Switch-ON Voltage Level
Switch-OFF Voltage Level
Input Impedance
VCH
VCL
RIN
2.4
-
-
-
0.5
-
V
V
kΩ
Ω
-
-
-
100
45
Output Impedance
ROUT
-
■ SWITCH CONTROL LOGIC
CNT2 CNT1 INPUT SELECTOR Ach / Bch
L
L
H
L
H
L
1
2
3
- 3 -
NJM2753
■ TERMINAL DESCRIPTION
PIN
TERMINAL
VOLTAGE
SYMBOL
FUNCTION
EQUIVALENT CIRCUIT
No.
2
IN1A
IN2A
IN3A
IN3B
IN2B
IN1B
Ach Input Terminal1
Ach Input Terminal2
Ach Input Terminal3
Bch Input Terminal3
Bch Input Terminal2
Bch Input Terminal1
4
V+/2
6
9
11
13
650
100k
3p
5
7
CNT1
CNT2
Control Switch Terminal1
Control Switch Terminal2
0V (GND)
650
CNT
100k
1
OUTA
OUTB
Ach Output Terminal
Bch Output Terminal
V+/2
V+/2
14
OUTA
OUTB
45
100k
10
Vref
Reference Terminal
50k
650
VREF
50k
3
V+
Power Supply Terminal
GND Terminal
V+
0V
V+
12
GND
12k
GND
- 4 -
NJM2753
■MEASUREMENT CIRCUIT
10 F
10 F
µ
µ
+
+
1
14
OUTB
OUTA
+
10 F
µ
10 F
µ
2
3
13
12
IN1A
V+
IN1B
GND
IN2B
+
+
100 F
µ
10 F
µ
10 F
µ
+
+
+
4
5
11
10
IN2A
CNT1
IN3A
+
10 F
µ
Vref
IN3B
N.C
10 F
µ
10 F
µ
6
7
9
8
+
CNT2
- 5 -
NJM2753
■APPLICATION CIRCUIT
10 F
10 F
µ
µ
+
+
1
14
OUTB
OUTA
+
10 F
µ
10 F
µ
2
3
13
12
IN1A
V+
IN1B
GND
IN2B
+
+
100 F
µ
10 F
µ
10 F
µ
+
+
4
5
11
10
IN2A
CNT1
IN3A
CNT2
+
10 F
µ
100k
100k
Vref
IN3B
N.C
1 F
µ
10 F
µ
+
6
7
9
8
+
10 F
µ
1 F
µ
Application note:
Resistor(100k) and capacitor(1µF) connected to CNT1 are added to reduce pop-noise.
The value of input capacitor connected to IN1A and IN2A depends on cut-off frequency(calculated by fc=1/2πRC)
you need. R(input impedance)=100kΩ.
- 6 -
NJM2753
!TYPICAL CHARACTERISTICS
VREF vs Supply Voltage
No signal
ICC vs Supply Voltage
No signal
7
6
5
4
3
2
1
0
14
25oC 105oC
12
-40 to 105oC
10
8
-40oC
6
4
2
0
0
2
4
6
8
10
12
14
0
2
4
6
8
10
12
14
Supply Voltage [V]
Supply Voltage [V]
THD+N vs Input Voltage
BW:400-30kHz ,f=1kHz, I/O: INA1-Aout
GAIN vs FrequencyV=9V,
I/O: INA1-Aout
100
10
1
0.8
0.6
0.4
0.2
0
-40oC
25oC
-40 to 105oC
1
0.1
-0.2
-0.4
-0.6
-0.8
-1
105oC
0.01
0.001
0.0001
0.01
0.1
1
10
10
100
1000
10000
100000
Frequency [Hz]
Input Voltage [Vrms]
Maximum Output Voltage vs Frequency
V=9V, THD=1%, I/O: INA1-Aout
THD+N vs Frequency
I/O: INA1-Aout
2.7
1
2.65
2.6
-40
℃
0.1
0.01
2.55
2.5
25
℃ꢀ
105
℃
2.45
2.4
0.001
0.0001
2.35
2.3
1
10
100
1000
10000
100000
10
100
1000
10000
100000
Frequency [Hz]
Frequency [Hz]
- 7 -
NJM2753
!TYPICAL CHARACTERISTICS
Maximum Output Voltage vs Supply Voltage
THD=1%, I/O: INA1-1Aout
Maximum Output Voltage vs Load Resistance
V=9V, THD=1%, f=1kHz, I/O: INA1-Aout / INB1-Bout
3.0
2.5
2.0
1.5
1.0
0.5
0.0
4
3.5
3
2.5
2
1.5
1
0.5
0
0
2
4
6
8
10
12
14
1
10
100
1000
10000
100000
Supply Voltage [±V]
RL[Ω]
Cross Talk vs Frequency
Cross Talk vs Frequency
V=9V, Vin=1Vrms, BW:10-80kHz,
V=9V, Vin=1Vrms, BW:10-80kHz,
I/O: INA2-INA3/Aout, Select Channel:1ch
I/O: INA2-IN3A/Aout, Select Channel:1ch
-40
-50
-40
-50
Rg=5.1kΩ
Rg=3.3kΩ
105oC
25oC
-40oC
-60
-60
-70
-70
Rg=620Ω
-80
-80
-90
-90
-100
-110
-100
-110
Rg=0Ω
10
100
1000
10000
100000
10
100
1000
10000
100000
Frequency [Hz]
Frequency [Hz]
Channel Separation vs Frequency
V=9V, Vin=1Vrms, BW:10-80kHz,
I/O: INB1-Aout
Channel Separation vs Frequency
V=9V, Vin=1Vrms, BW:10-80kHz,
I/O: INB1-Aout
-40
-50
-40
Rg=5.1kΩ
Rg=3.3kΩ
-50
-60
-60
-40 to 25oC
105oC
-70
-70
Rg=620Ω
-80
-80
Rg=0Ω
-90
-90
-100
-110
-100
-110
10
100
1000
10000
100000
10
100
1000
10000
100000
Frequency [Hz]
Frequency [Hz]
- 8 -
NJM2753
!TYPICAL CHARACTERISTICS
CNT Voltage vsCross Talk
V=9V, Vin=1Vrms, A-w eghit
CNT Voltage vsCross Talk
V=9V, Vin=1Vrms, A-w eghit
I/O: IN1A-Aout
I/O: IN2A-Aout
10
0
10
0
-40oC
25oC
-10
-20
-30
-40
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
105oC
25oC
105oC
-50
-40oC
-60
-70
-80
-90
-100
-110
-120
-130
1.5
1.7
1.9
2.1
2.3
2.5
1
1.2
1.4
1.6
1.8
2
CNT Voltage[V]
CNT Voltage[V]
[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.
- 9 -
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