4-Input 1-Output Stereo Audio Selector GENERAL DESCRIPTION NJM275

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4-Input 1-Output Stereo Audio Selector GENERAL DESCRIPTION NJM275

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NJM2755
4-Input 1-Output Stereo Audio Selector
GENERAL DESCRIPTION NJM2755 Input Output Stereo Audio Selector. NJM2755 consists switches buffer operational amplifiers. Based internal switch op-amp technology, NJM2755 features lower output noise, lower distortion higher channel separation than general Multiplexers Analogue Switches. NJM2755 contains compatibility with NJM2752(2in-1out SW),NJM2753(3in-1out SW). sAPPLICATIONS qLCD-TV/PDP-TV qCar Stereo qAny Audio System FEATURES Operating Voltage Input Output Stereo Audio Selectors Output Noise -114dBV typ. Distortion 0.0009% typ. Bipolar Technology Package Outline SSOP16 PACKAGE OUTLINE
NJM2755V
BLOCK DIAGRAM
IN1A IN1B IN2A IN2B
LOGIC
CNT1 CNT2
OUTA
IN3A
OUTB
IN3B IN4A IN4B
Vref
Vref
Ver.1.1
NJM2755
CONFIGURATIONS NJM2755 SSOP16
SSOP16
OUTA IN1A IN2A CNT1 IN3A CNT2 IN4A
OUTB
NJM2755V
IN1B IN2B Vref IN3B IN4B
PIN.No.
SYMBOL OUTA IN1A IN2A CNT1 IN3A CNT2 IN4A
FUNCTION Output Terminal Input Terminal1 Power Supply Terminal Input Terminal2 Control Switch Terminal1 Input Terminal3 Control Switch Terminal2 Input Terminal4
PIN.No.
SYMBOL IN4B IN3B Vref IN2B IN1B OUTB
FUNCTION Input Terminal4 Connection Input Terminal3 Reference Terminal Input Terminal2 Terminal Input Terminal1 Output Terminal
[Reference]
NJM2755 contains compatibility with NJM2752 (2in-1out SW),NJM2753 (3in-1out SW). NJM2752 NJM2753
OUTA
OUTB
OUTA
OUTB
NJM2752V
NJM2753V
IN1A IN2A CNT1
IN1B IN2B Vref
IN1A IN2A CNT1 IN3A CNT2
IN1B IN2B Vref IN3B
NJM2755
ABSOLUTE MAXIMUM RATINGS (Ta=25°C) PARAMETER SYMBOL Supply Voltage
RATING SSOP16
UNIT
Power Dissipation
NOTE EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 2layer, FR-4) mounting EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 4layer, FR-4) mounting
Operating Temperature Range Storage Temperature Range
TOPR TSTR
+150
ELECTRICAL CHARACTERISTICS Ta=25°C, =9V) PARAMETER Operating Voltage Supply Current Reference Voltage Voltage Gain Total Harmonic Distortion Output Noise Voltage Maximum Output Voltage Cross Talk Channel Separation Switch-ON Voltage Level Switch-OFF Voltage Level Input Impedance Output Impedance SWITCH CONTROL LOGIC CNT2 CNT1 INPUT SELECTOR SYMBOL
TEST CONDITION Signal Vin=1Vrms, f=1kHz Vin=1Vrms, f=1kHz A-Weighted f=1kHz, THD=1% Vin=1Vrms, f=1kHz, A-Weighted Vin=1Vrms, f=1kHz, A-Weighted
MIN. (2.0)
TYP. 0.0009 -114 (2.5)
MAX. 0.03 -100 (10)
UNIT (µVrms) (Vrms)
VREF THD+N ROUT
NJM2755
TERMINAL DESCRIPTION SYMBOL IN1A IN2A IN3A IN4A IN4B IN3B IN2B IN1B FUNCTION Input Terminal1 Input Terminal2 Input Terminal3 Input Terminal4 Input Terminal4 Input Terminal3 Input Terminal2 Input Terminal1 EQUIVALENT CIRCUIT TERMINAL VOLTAGE V+/2
100k
CNT1 CNT2
Control Switch Terminal1 Control Switch Terminal2
(GND)
100k
OUTA OUTB
Output Terminal Output Terminal
OUTA OUTB
V+/2
100k
Vref
Reference Terminal
V+/2
VREF
Power Supply Terminal Terminal
NJM2755
sMEASUREMENT CIRCUIT
10µF
OUTA
OUTB
10µF 10µF
10µF
IN2A CNT1 IN3A CNT2 IN4A
NJM2755
IN1A
IN1B IN2B Vref IN3B IN4B
100µF
10µF
10µF 10µF 10µF
10µF
10µF
10µF
NJM2755
sAPPLICATION CIRCUIT
10µF
OUTA
OUTB
10µF 10µF
10µF
IN2A CNT1 IN3A CNT2 IN4A
NJM2755
IN1A
IN1B IN2B Vref IN3B IN4B
100µF
10µF
10µF 10µF 10µF
100k
10µF 100k 10µF
10µF
Application note: Resistor(100k) capacitor(1µF) connected CNT1 added reduce pop-noise. value input capacitor connected IN1A IN2A depends cut-off frequency(calculated fc=1/2RC) need. R(input impedance)=100k.
NJM2755
!TYPICAL CHARACTERISTICS
Supply Voltage signal VREF Supply Voltage signal
25oC,105oC
[mA] VREF[V] Supply Voltage Supply Voltage
105oC
-40oC
GAIN FrequencyV=9V, I/O: INA1-Aout Gain Output [dB] -0.2 -0.4 -0.6 -0.8 1000 Frequency [Hz] THD+N Frequency I/O: INA1-Aout 2.65 THD+N Maximum Output Voltage [Vrms] 2.55 2.45 2.35 0.0001 1000 Frequency [Hz] 10000 100000 10000 100000 0.0001 0.01
THD+N Input Voltage 400-30kHz, f=1kHz, I/O: INA1-Aout
THD+N
-40oC 25oC
0.01
105oC
0.001
Input Voltage [Vrms] Maximum Output Voltage Frequency V=9V, THD=1%, I/O: INA1-Aout
0.01
105oC
0.001
1000
10000
100000
Frequency [Hz]
NJM2755
!TYPICAL CHARACTERISTICS
Maximum Output Voltage Supply Voltage THD=1%, I/O: INA1-1Aout Maximum Output Voltage [Vrms] Supply Voltage [±V] Maximum Output Voltage [Vrms] Maximum Output Voltage Load Resistance V=9V, THD=1%, f=1kHz, I/O: INA1-Aout INB1-Bout
RL[] 1000 10000 100000
Cross Talk[dB] -100
Cross Talk Frequency V=9V, Vin=1Vrms, BW:10-80kHz, I/O: INA2-INA4/Aout, Select Channel:1ch
Cross Talk[dB] -100
Cross Talk Frequency V=9V, Vin=1Vrms, BW:10-80kHz, I/O: INA2-INA4/Aout, Select Channel:1ch
Rg=5.1k
Rg=3.3k Rg=620
105oC 25oC -40oC
Rg=0
-110 1000 Frequency [Hz] 10000 100000 -110 1000 Frequency [Hz] 10000 100000
Channel Separation[dB] -100 -110
Channel Separation Frequency V=9V, Vin=1Vrms, BW:10-80kHz, I/O: INB1-Aout
Channel Separation[dB]
Channel Separation Frequency V=9V, Vin=1Vrms, BW:10-80kHz, I/O: INB1-Aout
Rg=5.1k
Rg=3.3k Rg=620 Rg=0
105oC
-100 -110
1000 Frequency [Hz]
10000
100000
1000 Frequency [Hz]
10000
100000
NJM2755
!TYPICAL CHARACTERISTICS
Voltage vsCross Talk V=9V, Vin=1Vrms, eghit I/O: IN2A-Aout
Cross Talk[dB] -100 -110 -120 -130
-40oC
25oC
105oC
Cross Talk[dB] -100 -110 -120 -130
Voltage vsCross Talk V=9V, Vin=1Vrms, eghit I/O: IN1A-Aout
105oC
25oC
-40oC
Voltage[V]
Voltage[V]
[CAUTION] specifications this databook only given information without guarantee regards either mistakes omissions. application circuits this databook described only show representative usages product intended guarantee permission right including industrial rights.

4-Input 1-Output Stereo Audio Selector GENERAL DESCRIPTION NJM275

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