NJM2752 2-Input / 1-Output Stereo Audio Selector ■ GENERAL DESCRIPTION The NJM2752 is 2-Input / 1-Output Stereo Audio Selector. The NJM2752 consists of switches and buffer operational amplifiers. Based on the internal switch op-amp technology, the NJM2752 features lower output noise, lower distortion and higher channel separation than the general Multiplexers or Analogue Switches. The NJM2752 contains compatibility with NJM2753 (3in-1out SW),NJM2755 (4in-1out SW). It is suitable for LCD-TV/PDP-TV, Car Stereo, and Any Audio System. ■ FEATURES ● Operating Voltage ● 2-Input / 1-Output Stereo Audio Selectors ● Low Output Noise ● Low Distortion ● Bipolar Technology ● Package Outline ■ PACKAGE OUTLINE NJM2752RB2 NJM2752V 4.7 to 10V -114dBV typ. 0.0009% typ. TVSP10,SSOP14 ■ BLOCK DIAGRAM LOGIC IN1A CNT1 OUTA IN1B IN2A OUTB IN2B ＋ V＋ Vref Vref GND Ver.2.0 -1- NJM2752 ■ PIN CONFIGURATIONS TVSP10,SSOP14 PIN.No. OUTA 2 IN1A 3 V+ 4 IN2A 5 CNT1 (TVSP10) PIN.No. (SSOP14) 1 1 OUTA 2 2 3 4 5 SSOP14 OUTB 10 1 OUTA IN1B 9 2 IN1A GND 8 3 V+ IN2B 7 4 IN2A Vref 6 5 CNT1 6 N.C 7 N.C NJM2752V 1 NJM2752RB2 TVSP10 14 IN1B 13 GND 12 IN2B 11 Vref 10 N.C 9 N.C 8 (TVSP10) PIN.No. (SSOP14) Ach Output Terminal 6 10 Vref Reference Terminal IN1A Ach Input Terminal1 7 11 IN2B Bch Input Terminal2 3 V+ Power Supply Terminal 8 12 GND GND Terminal 4 IN2A Ach Input Terminal2 9 13 IN1B Bch Input Terminal1 5 CNT1 Control Switch Terminal1 10 14 OUTB Bch Output Terminal N.C No Connection 6,7 8,9 SYMBOL PIN.No. FUNCTION SYMBOL [Reference] The NJM2752 contains compatibility with NJM2753 (3in-1out SW),NJM2755 (4in-1out SW). OUTA 2 IN1A 3 V+ 4 IN2A 5 CNT1 6 IN3A 7 CNT2 NJM2755 OUTB 14 1 OUTA IN1B 13 2 IN1A GND 12 3 V+ IN2B 11 4 IN2A Vref 10 5 CNT1 IN3B 9 6 IN3A N.C 8 7 CNT2 8 IN4A NJM2755V 1 NJM2753V NJM2753 -2- OUTB OUTB 16 IN1B 15 GND 14 IN2B 13 Vref 12 IN3B 11 N.C 10 IN4B 9 FUNCTION NJM2752 ■ ABSOLUTE MAXIMUM RATINGS (Ta=25°C) PARAMETER SYMBOL + Supply Voltage V Power Dissipation PD RATING UNIT 12 TVSP10 1) 470 2) 640 SSOP14 1) 450 2) 570 V 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 TOPR -40 to +85 °C Storage Temperature Range TSTR -40 to +150 °C + ■ ELECTRICAL CHARACTERISTICS ( Ta=25°C, V =9V) PARAMETER SYMBOL TEST CONDITION + Operating Voltage V Supply Current ICC Reference Voltage No Signal VREF Voltage Gain Total Harmonic Distortion MIN. TYP. MAX. UNIT 4.7 9.0 10 V - 10 15 mA - 4.5 - V GV Vin=1Vrms, f=1kHz -1 0 1 dB THD+N Vin=1Vrms, f=1kHz 6 (2.0) 0.0009 -114 (2) 8 (2.5) 0.03 -100 (10) % dBV (µVrms) dBV (Vrms) 70 100 - dB 80 110 - dB Output Noise Voltage VNO A-Weighted Maximum Output Voltage VOM f=1kHz, THD=1% Cross Talk CT Channel Separation CS Switch-ON Voltage Level VCH 2.4 - - V Switch-OFF Voltage Level VCL - - 0.5 V Input Impedance RIN - 100 - kΩ ROUT - 45 - Ω Output Impedance Vin=1Vrms, f=1kHz, A-Weighted Vin=1Vrms, f=1kHz, A-Weighted - ■ SWITCH CONTROL LOGIC CNT1 INPUT SELECTOR Ach / Bch L 1 H 2 -3- NJM2752 ■MEASUREMENT CIRCUIT (SSOP14) + 1 OUTA 2 IN1A 3 V+ 4 IN2A 5 CNT1 6 N.C 7 N.C 10µF + + 100µF 10µF + -4- NJM2752 10µF OUTB 14 IN1B 13 GND 12 IN2B 11 Vref 10 N.C 9 N.C 8 + 10µF + + + 10µF 10µF 10µF NJM2752 ■APPLICATION CIRCUIT (SSOP14) + 1 OUTA 2 IN1A 3 V+ 4 IN2A 5 CNT1 6 N.C 7 N.C 10µF + + 100µF 10µF + 100k 1µF NJM2752 10µF OUTB 14 IN1B 13 GND 12 IN2B 11 Vref 10 N.C 9 N.C 8 + 10µF + 10µF + 10µF + 10µF 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. -5- NJM2752 ■ TERMINAL DESCRIPTION PIN No. 2 4 11 13 SYMBOL IN1A IN2A IN2B IN1B FUNCTION Ach Input Terminal1 Ach Input Terminal2 Bch Input Terminal2 Bch Input Terminal1 TERMINAL VOLTAGE EQUIVALENT CIRCUIT V+/2 IN1A IN2A IN1B IN2B 650 100k 3p 5 CNT1 Control Switch Terminal1 0V (GND) CNT 650 100k 1 14 OUTA OUTB Ach Output Terminal Bch Output Terminal V+/2 OUTA OUTB 45 100k 10 Vref Reference Terminal V+/2 50k VREF 650 50k 3 12 V+ GND Power Supply Terminal GND Terminal V+ 0V V+ 12k GND -6- NJM2752 !TYPICAL CHARACTERISTICS ICC vs Supply Voltage No signal VREF vs Supply Voltage No signal 14 7 12 6 10 5 8 4 VREF[V] ICC [mA] 25～105℃ -40℃ 6 -40～105℃ 3 4 2 2 1 0 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:10-22kHz(f=100Hz), 400-30kHz(f=1kHz, 10kHz) I/O: INA1-Aout GAIN vs Frequency V +=9V, I/O: INA1-Aout 100 1 0.8 10 0.6 -40～105℃ 1 THD+N [%] Gain Output [dB] 0.4 0.2 0 -0.2 105℃ 0.1 -40～25℃ 0.01 -0.4 -0.6 0.001 -0.8 -1 10 100 1000 10000 100000 0.0001 0.01 0.1 1 10 Input Voltage [Vrms] Frequency [Hz] Maximum Output Voltage vs Frequency V +=9V, THD=1%, I/O: INA1-Aout THD+N vs Frequency I/O: INA1-Aout 2.7 1 Maximum Output Voltage [Vrms] 2.65 THD+N [%] 0.1 -40～105℃ 0.01 0.001 2.6 2.55 2.5 2.45 2.4 2.35 2.3 0.0001 10 100 1000 Frequency [Hz] 10000 100000 1 10 100 1000 10000 100000 Frequency [Hz] -7- NJM2752 !TYPICAL CHARACTERISTICS Maximum Output Voltage vs Load Resistance V +=9V, THD=1%, f=1kHz, I/O: INA1-Aout / INB1-Bout Maximum Output Voltage vs Supply Voltage THD=1%, I/O: INA1-1Aout 3.0 4 Maximum Output Voltage [Vrms] Maximum Output Voltage [Vrms] 3.5 3 2.5 2 1.5 1 2.5 2.0 1.5 1.0 0.5 0.5 0.0 0 0 2 4 6 8 10 12 1 14 10 100 Cross Talk vs Frequency V +=9V, Vin=1Vrms, BW:10-80kHz, I/O: INA1-Aout, Select Channel:2ch -40 1000 10000 100000 RL[Ω] Supply Voltage [V] Cross Talk vs Frequency V +=9V, Vin=1Vrms, BW:10-80kHz, I/O: INA1-Aout, Select Channel:2ch -40 Rg=5.1kΩ -50 -50 Rg=3.3kΩ -60 -70 Cross Talk[dB] Cross Talk[dB] -60 Rg=620Ω -80 -70 -40℃ -90 -100 -100 -110 -110 10 100 1000 10000 25℃ -80 -90 Rg=0Ω 105℃ 10 100000 100 Frequency [Hz] Channel Separation vs Frequency V +=9V, Vin=1Vrms, BW:10-80kHz, I/O: INB1-Aout -40 1000 10000 100000 Frequency [Hz] Channel Separation vs Frequency V +=9V, Vin=1Vrms, BW:10-80kHz, I/O: INB1-Aout -40 Rg=5.1kΩ -50 -50 -60 Channel Separation[dB] Channel Separation[dB] Rg=3.3kΩ Rg=620Ω -70 -80 -90 Rg=0Ω 105℃ -70 25℃ -80 -40℃ -90 -100 -100 -110 -110 10 100 1000 Frequency [Hz] -8- -60 10000 100000 10 100 1000 Frequency [Hz] 10000 100000 NJM2752 !TYPICAL CHARACTERISTICS CNT Voltage vsCross Talk V +=9V, Vin=1Vrms, A-w eghit I/O: IN2A-Aout 10 0 -30 -10 25℃ -20 -30 Cross Talk[dB] 105℃ -40 -40℃ 0 25℃ -20 Cross Talk[dB] 10 -40℃ -10 CNT Voltage vsCross Talk V +=9V, Vin=1Vrms, A-w eghit I/O: IN1A-Aout -50 -60 -70 -80 105℃ -40 -50 -60 -70 -80 -90 -90 -100 -100 -110 -110 -120 -120 -130 -130 0 0.5 1 CNT Voltage[V] 1.5 2 0 0.5 1 1.5 2 2.5 3 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-